Challenges and Solutions for GPS Receiver Test

Size: px
Start display at page:

Download "Challenges and Solutions for GPS Receiver Test"

Transcription

1 Challenges and Solutions for GPS Receiver Test Presenter: Mirin Lew January 28, 2010 Agenda GPS technology concepts GPS and GNSS overview Assisted GPS (A-GPS) Basic tests required for GPS receiver verification Test solutions Signal creation for GPS receiver test A-GPS test systems GNSS = Global Navigation Satellite Systems

2 GPS and GNSS Overview GPS: Global Positioning System System owned and operated by the U.S. government Civilian service freely available to users worldwide Military service available to selected agencies only GNSS: Global Navigation Satellite System General term for any satellite-based navigation system Includes multiple systems worldwide Global Navigation Satellite Systems (GNSS) Galileo Joint effort of European Community and European Space Agency 2 test satellites in orbit, contracts awarded for first 14 satellites, up to 32 satellites operational by 2014 Interoperability agreement signed with GPS 4 services (open service, paid commercial service, safety of life service, public regulated service) as compared to 2 GPS services (public and private) Global Orbiting Navigation Satellite System (GLONASS) Russian system first launched by Soviet Union in 1982 Became non-functional for most applications in the 1990 s Currently being restored, 22 satellites in orbit as of Dec Particularly good coverage over upper latitudes (Northern Europe) Compass (Beidou-2) Chinese system 3 satellites are up, 12 satellites by 2012 to provide regional service Eventually 30 satellites

3 GNSS Related Systems Satellite Based Augmentation Systems (SBAS) Geostationary satellites transmit correction and integrity data for GNSS system over the GNSS frequency. Provides increased positioning accuracy. North America: Wide Area Augmentation System (WAAS) India: GPS and GEO Augmented Navigation (GAGAN) India: Indian Regional Navigation Satellite System (INRSS) Europe: European Geostationary Overlay Service (EGNOS) Japan: Multifunctional Satellite Based Augmentation Satellite System (MSAS) Japan: Quazi Zenith Satellite System (QZSS) Regional Navigation Satellite Systems (RNSS) Intended for improved coverage over limited areas GPS Technology Overview Constellation of 24 active satellites in orbit (up to 32 satellites total) Each satellite transmits its current location and time Each satellite transmission is synchronized to the rest by atomic clock Minimum of 4 satellites required for 3D location calculation Major segments of the system Space: Satellites or Space Vehicles (SV) orbiting the Earth twice a day at 20,200 km Control: Ground stations provide navigation information update and SV control User: GPS receiver

4 How Does GPS Work in the Real World? Space Segment Uplink data: Satellite orbital information Position constants Clock correction factors Atmospheric data Monitor Stations GPS Data Master Control Station User Control segment GPS Transmitted Signal Satellite GPS signal has 3 components: Carrier wave: MHz (L1) & MHz (L2) Ranging (pseudo-random) codes: Coarse acquisition (C/A) code and precise (P) code Navigation message: 50 bit/s contains ephemeris data (detailed orbital information for the transmitting satellite) and almanac data (more general orbital information for all satellites) L1 Carrier MHz C/A Code MHz Navigation Data 50 Hz + 90 Σ + L1 Signal (Civilian use) modulo 2 adder P Code MHz + modulator L2 Carrier MHz L2 Signal (Military use)

5 Navigation Message Navigation message 25 pages/frames 37,500 bits 12.5 minutes Sub-frame bits Sub-frame 1 6 seconds Sub-frame 3 Sub-frame 4 Sub-frame Frame (page) 1500 bits 30 seconds Satellite health and clock correction data Ephemeris Ephemeris Partial almanac & other data Telemetry word (TLM) 30 bits 0.6 seconds 8 bits preamble 16 bits reserved 6 bits parity Handover word (HOW) 30 bits 0.6 seconds 17 bits Time of week TOW 7 bits ID 6 bits parity Worst Case: 30 seconds to receive full ephemeris data 12.5 minutes to receive full almanac data and Ephemeris Files File Contains data on the health and general orbital information for every satellite in the constellation. Updated weekly. Ephemeris File Contains detailed information on the orbit of an individual satellite. Updated every 2 hours. Data from the almanac can be used to create a scenario file that contains the satellite information for a specific date, time, and location. Ephemeris data files can be used to create a GPS signal that more accurately represents the actual signals broadcast at that date, time, and location.

6 Agenda GPS technology concepts GPS and GNSS overview Assisted GPS (A-GPS) Basic tests required for GPS receiver verification Test solutions Signal creation for GPS receiver test A-GPS test systems GNSS = Global Navigation Satellite Systems Assisted GPS (A-GPS) Technique for cellular network to assist mobile phone s GPS receiver to lock to satellites and achieve location fix more quickly Fulfills U.S. FCC s E911 directive which mandated fast and accurate location of mobile phones by emergency services Needed due to low GPS signal levels that may be seen by mobile phones when indoors or in areas without direct view of sufficient satellites Allows mobile phone s GPS receiver to acquire location fix much more quickly Base station provides assistance data to mobile phones. Data includes: Navigation: precise satellite orbital information : coarse orbital information Time of Week: GPS time Ionosphere: single frequency (L1) correction factors Reference location: initial estimate of location Acquisition assistance: data to aid in locating or tracking satellites Real-time integrity: list of bad satellites UTC model: leap second time correction for GPS time

7 How Does A-GPS Work in the Real World? Space Segment Uplink data: Satellite ephemeris Position constants Clock correction factors Atmospheric data Monitor Stations GPS Assistance Server Master Control Station Network Downlink: Coarse Time Ephemeris Data Coarse Location (100m accuracy) Control segment Cellular Network User A-GPS Operation Assistance Data Transportation Control plane: Uses dedicated messaging on network control channels User plane: Uses existing standard Internet protocol (IP) based data connections; also called Secure User Plane Location (SUPL) A-GPS Modes Mobile station/user equipment (MS/UE) Assisted (older method) MS/UE supplies GPS measurements to network Network combines with assistance server data, calculates and transmits location back to mobile Typically used with control plane MS/UE Based (newer method) MS/UE uses assistance data to calculate location Transmits location back to BS Used with user plane (less network dependent)

Challenges and Solutions for GPS Receiver Test

Challenges and Solutions for GPS Receiver Test Challenges and Solutions for GPS Receiver Test Presenter: Mirin Lew January 28, 2010 Agenda GPS technology concepts GPS and GNSS overview Assisted GPS (A-GPS) Basic tests required for GPS receiver verification

More information

King AbdulAziz University. Faculty of Environmental Design. Geomatics Department. Mobile GIS GEOM 427. Lecture 3

King AbdulAziz University. Faculty of Environmental Design. Geomatics Department. Mobile GIS GEOM 427. Lecture 3 King AbdulAziz University Faculty of Environmental Design Geomatics Department Mobile GIS GEOM 427 Lecture 3 Ahmed Baik, Ph.D. Email: abaik@kau.edu.sa Eng. Fisal Basheeh Email: fbasaheeh@kau.edu.sa GNSS

More information

The topic we are going to see in this unit, the global positioning system, is not directly related with the computer networks we use everyday, but it

The topic we are going to see in this unit, the global positioning system, is not directly related with the computer networks we use everyday, but it The topic we are going to see in this unit, the global positioning system, is not directly related with the computer networks we use everyday, but it is indeed a kind of computer network, as the specialised

More information

Lecture-1 CHAPTER 2 INTRODUCTION TO GPS

Lecture-1 CHAPTER 2 INTRODUCTION TO GPS Lecture-1 CHAPTER 2 INTRODUCTION TO GPS 2.1 History of GPS GPS is a global navigation satellite system (GNSS). It is the commonly used acronym of NAVSTAR (NAVigation System with Time And Ranging) GPS (Global

More information

Principal Investigator Co-Principal Investigator Co-Principal Investigator Prof. Talat Ahmad Vice-Chancellor Jamia Millia Islamia Delhi

Principal Investigator Co-Principal Investigator Co-Principal Investigator Prof. Talat Ahmad Vice-Chancellor Jamia Millia Islamia Delhi Subject Paper No and Title Module No and Title Module Tag Geology Remote Sensing and GIS Concepts of Global Navigation Satellite RS & GIS XXXIII Principal Investigator Co-Principal Investigator Co-Principal

More information

The last 25 years - GPS to multi-gnss: from a military tool to the most widely used civilian positioning solution

The last 25 years - GPS to multi-gnss: from a military tool to the most widely used civilian positioning solution 1 The last 25 years - GPS to multi-gnss: from a military tool to the most widely used civilian positioning solution B. Hofmann-Wellenhof Institute of Geodesy / Navigation, Graz University of Technology

More information

ORBITAL NAVIGATION SYSTEMS PRESENT AND FUTURE TENDS

ORBITAL NAVIGATION SYSTEMS PRESENT AND FUTURE TENDS ORBITAL NAVIGATION SYSTEMS PRESENT AND FUTURE TENDS CONTENT WHAT IS COVERED A BRIEF HISTORY OF SYSTEMS PRESENT SYSTEMS IN USE PROBLEMS WITH SATELLITE SYSTEMS PLANNED IMPROVEMENTS CONCLUSION CONTENT WHAT

More information

GLOBAL POSITIONING SYSTEMS

GLOBAL POSITIONING SYSTEMS GLOBAL POSITIONING SYSTEMS GPS & GIS Fall 2017 Global Positioning Systems GPS is a general term for the navigation system consisting of 24-32 satellites orbiting the Earth, broadcasting data that allows

More information

GLOBAL POSITIONING SYSTEMS. Knowing where and when

GLOBAL POSITIONING SYSTEMS. Knowing where and when GLOBAL POSITIONING SYSTEMS Knowing where and when Overview Continuous position fixes Worldwide coverage Latitude/Longitude/Height Centimeter accuracy Accurate time Feasibility studies begun in 1960 s.

More information

GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) ECE 2526E Tuesday, 24 April 2018

GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) ECE 2526E Tuesday, 24 April 2018 GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) ECE 2526E Tuesday, 24 April 2018 MAJOR GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) Global Navigation Satellite System (GNSS) includes: 1. Global Position System

More information

PRELIMINARY PROGRAMME

PRELIMINARY PROGRAMME ICG EXPERTS MEETING: GLOBAL NAVIGATION SATELLITE SYSTEMS SERVICES 14-18 December 2015 Vienna International Centre, Vienna, Austria Organized by International Committee on Global Navigation Satellite Systems

More information

One Source for Positioning Success

One Source for Positioning Success novatel.com One Source for Positioning Success RTK, PPP, SBAS OR DGNSS. NOVATEL CORRECT OPTIMIZES ALL CORRECTION SOURCES, PUTTING MORE POWER, FLEXIBILITY AND CONTROL IN YOUR HANDS. NovAtel CORRECT is the

More information

CONSIDERATIONS FOR GNSS MEASUREMENTS

CONSIDERATIONS FOR GNSS MEASUREMENTS CONSIDERATIONS FOR GNSS MEASUREMENTS Cornel PĂUNESCU 1, Cristian VASILE 2, Cosmin CIUCULESCU 3 1 PhD University of Bucharest, e-mail: cornelpaun@gmail.com 2 Lecturer PhD University of Craiova, cristi_vasile_4you@yahoo.com

More information

GBAS FOR ATCO. June 2017

GBAS FOR ATCO. June 2017 GBAS FOR ATCO June 2017 Disclaimer This presentation is for information purposes only. It should not be relied on as the sole source of information, and should always be used in the context of other authoritative

More information

Resection. We can measure direction in the real world! Lecture 10: Position Determination. Resection Example: Isola, Slovenia. Professor Keith Clarke

Resection. We can measure direction in the real world! Lecture 10: Position Determination. Resection Example: Isola, Slovenia. Professor Keith Clarke Geography 12: Maps and Spatial Reasoning Lecture 10: Position Determination We can measure direction in the real world! Professor Keith Clarke Resection Resection Example: Isola, Slovenia Back azimuth

More information

European Geostationary Navigation Overlay Service (EGNOS) Capability on Sirius 5 Satellite for SES

European Geostationary Navigation Overlay Service (EGNOS) Capability on Sirius 5 Satellite for SES 21 October 2009 SES SIRIUS European Geostationary Navigation Overlay Service (EGNOS) Capability on Sirius 5 Satellite for SES Mike Pavloff, Executive Director, Space Systems/Loral Information included

More information

GPS Global Positioning System

GPS Global Positioning System GPS Global Positioning System 10.04.2012 1 Agenda What is GPS? Basic consept History GPS receivers How they work Comunication Message format Satellite frequencies Sources of GPS signal errors 10.04.2012

More information

Introduction to Geographic Information Science. Last Lecture. Today s Outline. Geography 4103 / GNSS/GPS Technology

Introduction to Geographic Information Science. Last Lecture. Today s Outline. Geography 4103 / GNSS/GPS Technology Geography 4103 / 5103 Introduction to Geographic Information Science GNSS/GPS Technology Last Lecture Geoids Ellipsoid Datum Projection Basics Today s Outline GNSS technology How satellite based navigation

More information

Satellite-Based Augmentation System (SBAS) Integrity Services

Satellite-Based Augmentation System (SBAS) Integrity Services Satellite-Based Augmentation System (SBAS) Integrity Services Presented To: Munich, Germany Date: March 8, 2010 By: Leo Eldredge, Manager GNSS Group, FAA FAA Satellite Navigation Program 2 Wide Area Augmentation

More information

GPS and Recent Alternatives for Localisation. Dr. Thierry Peynot Australian Centre for Field Robotics The University of Sydney

GPS and Recent Alternatives for Localisation. Dr. Thierry Peynot Australian Centre for Field Robotics The University of Sydney GPS and Recent Alternatives for Localisation Dr. Thierry Peynot Australian Centre for Field Robotics The University of Sydney Global Positioning System (GPS) All-weather and continuous signal system designed

More information

Nigerian Communications Satellite Ltd. (NIGCOMSAT)

Nigerian Communications Satellite Ltd. (NIGCOMSAT) OVERVIEW OF NIGERIAN SATELLITE AUGMENTATION SYSTEM COMMENCING WITH PILOT DEMONSTRATION TO VALIDATE NATIONAL WORK PLAN presented by Dr. Lawal Lasisi Salami, NIGERIAN COMMUNICATIONS SATELLITE LTD UNDER FEDERAL

More information

TEST YOUR SATELLITE NAVIGATION PERFORMANCE ON YOUR ANDROID DEVICE GLOSSARY

TEST YOUR SATELLITE NAVIGATION PERFORMANCE ON YOUR ANDROID DEVICE GLOSSARY TEST YOUR SATELLITE NAVIGATION PERFORMANCE ON YOUR ANDROID DEVICE GLOSSARY THE GLOSSARY This glossary aims to clarify and explain the acronyms used in GNSS and satellite navigation performance testing

More information

GNSS 101 Bringing It Down To Earth

GNSS 101 Bringing It Down To Earth GNSS 101 Bringing It Down To Earth Steve Richter Frontier Precision, Inc. UTM County Coordinates NGVD 29 State Plane Datums Scale Factors Projections Session Agenda GNSS History & Basic Theory Coordinate

More information

GNSS Programme. Overview and Status in Europe

GNSS Programme. Overview and Status in Europe GNSS Programme Overview and Status in Europe Inaugural Forum Satellite Positioning Research and Application Center 23 April 2007 Tokyo Presented by Thomas Naecke (European Commission) Prepared by Daniel

More information

PRINCIPLES AND FUNCTIONING OF GPS/ DGPS /ETS ER A. K. ATABUDHI, ORSAC

PRINCIPLES AND FUNCTIONING OF GPS/ DGPS /ETS ER A. K. ATABUDHI, ORSAC PRINCIPLES AND FUNCTIONING OF GPS/ DGPS /ETS ER A. K. ATABUDHI, ORSAC GPS GPS, which stands for Global Positioning System, is the only system today able to show you your exact position on the Earth anytime,

More information

Introduction to Global Navigation Satellite System (GNSS) Module: 1

Introduction to Global Navigation Satellite System (GNSS) Module: 1 Introduction to Global Navigation Satellite System (GNSS) Module: 1 Dinesh Manandhar Center for Spatial Information Science The University of Tokyo Contact Information: dinesh@iis.u-tokyo.ac.jp Slide :

More information

The Global Positioning Sytem II 10/19/2017

The Global Positioning Sytem II 10/19/2017 The Global Positioning System II Field Experiments 10/19/2017 5-1 Mexico DGPS Field Campaign Cenotes in Tamaulipas, MX, near Aldama 10/19/2017 5-2 Are Cenote Water Levels Related? 10/19/2017 5-3 M. Helper,

More information

Indian GNSS Industry Overview Challenges and future prospects

Indian GNSS Industry Overview Challenges and future prospects Indian GNSS Industry Overview Challenges and future prospects Expert Presentation By Dr. S.V. Kibe Consultant, SATCOM & GNSS, Bangalore, India (Former Programme Director, SATNAV,ISRO HQ) On February 20,2013

More information

The Global Positioning System

The Global Positioning System The Global Positioning System 5-1 US GPS Facts of Note DoD navigation system First launch on 22 Feb 1978, fully operational in 1994 ~$15 billion (?) invested to date 24 (+/-) Earth-orbiting satellites

More information

Where Next for GNSS?

Where Next for GNSS? Where Next for GNSS? Professor Terry Moore Professor of Satellite Navigation Nottingham The University of Nottingham Where Next for GNSS Back to the Future? Professor Terry Moore Professor of Satellite

More information

The Global Positioning System II Field Experiments

The Global Positioning System II Field Experiments The Global Positioning System II Field Experiments 5-1 Mexico DGPS Field Campaign Cenotes in Tamaulipas, MX, near Aldama 5-2 Are Cenote Water Levels Related? 5-3 DGPS Static Survey of Cenote Water Levels

More information

t =1 Transmitter #2 Figure 1-1 One Way Ranging Schematic

t =1 Transmitter #2 Figure 1-1 One Way Ranging Schematic 1.0 Introduction OpenSource GPS is open source software that runs a GPS receiver based on the Zarlink GP2015 / GP2021 front end and digital processing chipset. It is a fully functional GPS receiver which

More information

GPS Milestones, cont. GPS Milestones. The Global Positioning Sytem, Part 1 10/10/2017. M. Helper, GEO 327G/386G, UT Austin 1. US GPS Facts of Note

GPS Milestones, cont. GPS Milestones. The Global Positioning Sytem, Part 1 10/10/2017. M. Helper, GEO 327G/386G, UT Austin 1. US GPS Facts of Note The Global Positioning System US GPS Facts of Note DoD navigation system First launch on 22 Feb 1978, fully operational in 1994 ~$15 billion (?) invested to date 24 (+/-) Earth-orbiting satellites (SVs)

More information

Current status of Quasi-Zenith Satellite System. Japan Aerospace Exploration Agency QZSS Project Team

Current status of Quasi-Zenith Satellite System. Japan Aerospace Exploration Agency QZSS Project Team Current status of Quasi-Zenith Satellite System Japan Aerospace Exploration Agency QZSS Project Team 1 Quasi-Zenith Satellite System The QZSS is a regional space-based PNT (Positioning, Navigation and

More information

Understanding GPS: Principles and Applications Second Edition

Understanding GPS: Principles and Applications Second Edition Understanding GPS: Principles and Applications Second Edition Elliott Kaplan and Christopher Hegarty ISBN 1-58053-894-0 Approx. 680 pages Navtech Part #1024 This thoroughly updated second edition of an

More information

Technical Specifications Document. for. Satellite-Based Augmentation System (SBAS) Testbed

Technical Specifications Document. for. Satellite-Based Augmentation System (SBAS) Testbed Technical Specifications Document for Satellite-Based Augmentation System (SBAS) Testbed Revision 3 13 June 2017 Table of Contents Acronym Definitions... 3 1. Introduction... 4 2. SBAS Testbed Realisation...

More information

GPS (Introduction) References. Terms

GPS (Introduction) References. Terms GPS (Introduction) WCOM2, GPS, 1 Terms NAVSTAR GPS ( Navigational Satellite Timing and Ranging - Global Positioning System) is a GNSS (Global Navigation Satellite System), developed by the US-DoD in 197x

More information

How to Test A-GPS Capable Cellular Devices and Why Testing is Required

How to Test A-GPS Capable Cellular Devices and Why Testing is Required How to Test A-GPS Capable Cellular Devices and Why Testing is Required Presented by: Agilent Technologies Page 1 Agenda Introduction to A-GPS Why Test A-GPS Performance? Types of A-GPS Testing Page 2 Origins

More information

High Precision Navigation Capabilities(L1-SAIF) and Applications Using Japanese Quasi-Zenith Satellite System (QZSS)

High Precision Navigation Capabilities(L1-SAIF) and Applications Using Japanese Quasi-Zenith Satellite System (QZSS) High Precision Navigation Capabilities(L1-SAIF) and Applications Using Japanese Quasi-Zenith Satellite System (QZSS) ICG WG-B Application SG Meeting Munich, Germany March 12, 2012 Satellite Positioning

More information

Dynamic Reconfiguration in a GNSS Software Defined Radio for Multi-Constellation Operation

Dynamic Reconfiguration in a GNSS Software Defined Radio for Multi-Constellation Operation Dynamic Reconfiguration in a GNSS Software Defined Radio for Multi-Constellation Operation Alison K. Brown and D Arlyn Reed, NAVSYS Corporation BIOGRAPHY Alison Brown is the President and Chief Executive

More information

GPS/WAAS Program Update

GPS/WAAS Program Update GPS/WAAS Program Update UN/Argentina Workshop on the Applications of GNSS 19-23 March 2018 Cordoba, Argentina GNSS: A Global Navigation Satellite System of Systems Global Constellations GPS (24+3) GLONASS

More information

1. INTRODUCTION. Longitude, deg In contrast to the global systems such as GPS, GLONASS and

1. INTRODUCTION. Longitude, deg In contrast to the global systems such as GPS, GLONASS and SPECIAL REPORT Highly-Accurate Positioning Experiment Using QZSS at ENRI Ken Ito Electronic Navigation Research Institute (ENRI) 1. INTRODUCTION P ositioning with GPS is widely used in Japan in the area

More information

The Future of Global Navigation Satellite Systems

The Future of Global Navigation Satellite Systems The Future of Global Navigation Satellite Systems Chris RIZOS School of Surveying & Spatial Information Systems University of New South Wales Sydney, NSW 2052, AUSTRALIA E-mail: c.rizos@unsw.edu.au Abstract

More information

Chapter 2 Modernization of GNSS

Chapter 2 Modernization of GNSS Chapter 2 Modernization of GNSS With four Global Navigation Satellite Systems fully operational by the end of the decade, users on Earth can enjoy signals, at multiple frequencies in the L-band of the

More information

Introduction to Global Navigation Satellite System (GNSS) Signal Structure

Introduction to Global Navigation Satellite System (GNSS) Signal Structure Introduction to Global Navigation Satellite System (GNSS) Signal Structure Dinesh Manandhar Center for Spatial Information Science The University of Tokyo Contact Information: dinesh@iis.u-tokyo.ac.jp

More information

Galileo Aktueller Stand der Entwicklung

Galileo Aktueller Stand der Entwicklung Galileo Aktueller Stand der Entwicklung Is there a positive perspective for Galileo? Dr. Philipp Berglez TeleConsult Austria GmbH GSV-Forum Galileo das europäische Satellitennavigationssystem eine neue

More information

DYNAMIC POSITIONING CONFERENCE October 7-8, Sensors II. Redundancy in Dynamic Positioning Systems Based on Satellite Navigation

DYNAMIC POSITIONING CONFERENCE October 7-8, Sensors II. Redundancy in Dynamic Positioning Systems Based on Satellite Navigation Return to Session Directory DYNAMIC POSITIONING CONFERENCE October 7-8, 2008 Sensors II Redundancy in Dynamic Positioning Systems Based on Satellite Navigation Ole Ørpen, Tor Egil Melgård, Arne Norum Fugro

More information

Precise Point Positioning with BeiDou

Precise Point Positioning with BeiDou Precise Point Positioning with BeiDou Ole Ørpen Fugro Satellite Positioning AS Geodesi- og Hydrografidagene Stavanger, 12-13 Nov. 2014 Fugro 2013 Contents The G2 service Galileo Testing 2013 BeiDou Testing

More information

GNSS: orbits, signals, and methods

GNSS: orbits, signals, and methods Part I GNSS: orbits, signals, and methods 1 GNSS ground and space segments Global Navigation Satellite Systems (GNSS) at the time of writing comprise four systems, two of which are fully operational and

More information

A TSB business Support Solution Delivered through the Technology Programme

A TSB business Support Solution Delivered through the Technology Programme 1 Where to now with GNSS? Peter Lancaster Technology Translator Location & Timing KTN What is the Location & Timing KTN? Knowledge Transfer Networks are funded by the UK government, through the Technology

More information

Performance Evaluation of Differential Global Navigation Satellite System with RTK Corrections

Performance Evaluation of Differential Global Navigation Satellite System with RTK Corrections IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-issn: 2278-2834,p- ISSN: 2278-8735.Volume 9, Issue 2, Ver. VI (Mar - Apr. 2014), PP 43-47 Performance Evaluation of Differential

More information

Comprehensive Study of GNSS Systems

Comprehensive Study of GNSS Systems Quest Journals Journal of Software Engineering and Simulation Volume 3 ~ Issue 2 (2016) pp: 01-06 ISSN(Online) :2321-3795 ISSN (Print):2321-3809 www.questjournals.org Research Paper Comprehensive Study

More information

Assessment of GNSS Ionospheric Scintillation and TEC Monitoring Using the Multi-constellation GPStation-6 Receiver

Assessment of GNSS Ionospheric Scintillation and TEC Monitoring Using the Multi-constellation GPStation-6 Receiver Assessment of GNSS Ionospheric Scintillation and TEC Monitoring Using the Multi-constellation GPStation-6 Receiver Rod MacLeod Regional Manager Asia/Pacific NovAtel Australia Pty Ltd Outline Ionospheric

More information

Developments in Satellite Navigation and Wireless Spectrum

Developments in Satellite Navigation and Wireless Spectrum Developments in Satellite Navigation and Wireless Spectrum Chris Hegarty 14 June 2010 Christopher J. Hegarty, D.Sc. The MITRE Corporation chegarty@mitre.org 781-271-2127 (Tel) The contents of this material

More information

Understanding GPS/GNSS

Understanding GPS/GNSS Understanding GPS/GNSS Principles and Applications Third Edition Contents Preface to the Third Edition Third Edition Acknowledgments xix xxi CHAPTER 1 Introduction 1 1.1 Introduction 1 1.2 GNSS Overview

More information

Update on GNSS Time Creation and Distribution - How well does it really work?

Update on GNSS Time Creation and Distribution - How well does it really work? Update on GNSS Time Creation and Distribution - How well does it really work? ITSF November 1, 2016 Prague Marc A. Weiss, Ph.D. Consultant for National Institute of Standards and Technology marcweissconsulting@gmail.com

More information

INDIAN REGIONAL NAVIGATION SATELLITE SYSTEM

INDIAN REGIONAL NAVIGATION SATELLITE SYSTEM INDIAN REGIONAL NAVIGATION SATELLITE SYSTEM R. Shriwas 1, R. Bele 2, R. kalaskar 3, P. Jaiwsal 4 Prof. Ravi S. Shriwas- ravi.shriwas@gmail.com Ms. Rupali D.Bele - rupalibele02@gmail.com Ms.Rhutuja R. Kalaskar-

More information

GPS (Introduction) References. Terms

GPS (Introduction) References. Terms GPS (Introduction) MSE, Rumc, GPS, 1 Terms NAVSTAR GPS ( Navigational Satellite Timing and Ranging - Global Positioning System) is a GNSS (Global Navigation Satellite System), developed by the US-DoD in

More information

Global Navigation Satellite System (GNSS) GPS Serves Over 400 Million Users Today. GPS is used throughout our society

Global Navigation Satellite System (GNSS) GPS Serves Over 400 Million Users Today. GPS is used throughout our society Global avigation Satellite System (GSS) For freshmen at CKU AA December 10th, 2009 by Shau-Shiun Jan ICA & IAA, CKU Global avigation Satellite System (GSS) GSS (Global Positioning System, GPS) Basics Today

More information

PPS usable by timing applications via serial port emulation

PPS usable by timing applications via serial port emulation Timing & Navigation Module z051 USB GNSS Dongle with PPS* PPS usable by timing applications via serial port emulation * The Pulse Per Second (PPS) is an electrical signal that very precisely indicates

More information

GNSS Positioning STATUS AND FEATURES

GNSS Positioning STATUS AND FEATURES STATUS AND FEATURES GNSS Positioning Nowadays, GNSS receivers have scores and often more than one hundred of channels, enabling them to track GPS, Glonass, Galileo and Compass signals simultaneously. The

More information

FieldGenius Technical Notes GPS Terminology

FieldGenius Technical Notes GPS Terminology FieldGenius Technical Notes GPS Terminology Almanac A set of Keplerian orbital parameters which allow the satellite positions to be predicted into the future. Ambiguity An integer value of the number of

More information

Supplement to. Global navigation satellite systems (GNSS) L E C T U R E. Zuzana Bělinová. TELEMATIC SYSTEMS AND THEIR DESIGN part Systems Lecture 5

Supplement to. Global navigation satellite systems (GNSS) L E C T U R E. Zuzana Bělinová. TELEMATIC SYSTEMS AND THEIR DESIGN part Systems Lecture 5 Zuzana Bělinová L E C T U R E 5 Supplement to Global navigation satellite systems (GNSS) Recapitulation Satellite navigation systems Zuzana Bělinová History of satellite navigation USA USA 1960 TRANSIT

More information

The EU Satellite Navigation programmes status Applications for the CAP

The EU Satellite Navigation programmes status Applications for the CAP The EU Satellite Navigation programmes status Applications for the CAP Michaël MASTIER European Commission DG ENTR GP3 GNSS Applications, Security and International aspects GPS Workshop 2010 Montpellier

More information

GPS Glossary Written by Carl Carter SiRF Technology 2005

GPS Glossary Written by Carl Carter SiRF Technology 2005 GPS Glossary Written by Carl Carter SiRF Technology 2005 This glossary provides supplementary information for students of GPS Fundamentals. While many of the terms can have other definitions from those

More information

ASSEMBLY 37TH SESSION

ASSEMBLY 37TH SESSION International Civil Aviation Organization WORKING PAPER A37-WP/195 1 22/9/10 (Information paper) ASSEMBLY 37TH SESSION TECHNICAL COMMISSION Agenda Item 35: The Global Air Traffic Management (ATM) System

More information

Entity Tracking and Surveillance using the Modified Biometric System, GPS-3

Entity Tracking and Surveillance using the Modified Biometric System, GPS-3 Advance in Electronic and Electric Engineering. ISSN 2231-1297, Volume 3, Number 9 (2013), pp. 1115-1120 Research India Publications http://www.ripublication.com/aeee.htm Entity Tracking and Surveillance

More information

GNSS Technologies. Introduction to GNSS technologies, Dr. Laura Ruotsalainen

GNSS Technologies. Introduction to GNSS technologies, Dr. Laura Ruotsalainen GNSS Technologies Introduction to GNSS technologies, 11.1.2016 Dr. Laura Ruotsalainen Finnish Geospatial Research Institute, National Land Survey / Aalto University, School of Engineering, Department of

More information

Global Positioning Systems Directorate

Global Positioning Systems Directorate Space and Missile Systems Center Global Positioning Systems Directorate GPS Program Update to 8 th Stanford PNT Symposium 30 Oct 2014 Col Matt Smitham Deputy Director, GPS Directorate Global Positioning

More information

Introduction. Global Positioning System. GPS - Intro. Space Segment. GPS - Intro. Space Segment - Contd..

Introduction. Global Positioning System. GPS - Intro. Space Segment. GPS - Intro. Space Segment - Contd.. Introduction Global Positioning System Prof. D. Nagesh Kumar Dept. of Civil Engg., IISc, Bangalore 560 012, India URL: http://www.civil.iisc.ernet.in/~nagesh GPS is funded and controlled by U. S. Department

More information

M. Tech, department of ECE, Bapatla Engineering College, Bapatla, India

M. Tech, department of ECE, Bapatla Engineering College, Bapatla, India An Overview on Global Navigation Satellite System # student Gattupalli Deepti #1, Alahari Neelima #2, Nadendla Prasanthi #3, P. Sahiti Priya #4 M. Tech, department of ECE, Bapatla Engineering College,

More information

Signals, and Receivers

Signals, and Receivers ENGINEERING SATELLITE-BASED NAVIGATION AND TIMING Global Navigation Satellite Systems, Signals, and Receivers John W. Betz IEEE IEEE PRESS Wiley CONTENTS Preface Acknowledgments Useful Constants List of

More information

Mobile Positioning in Wireless Mobile Networks

Mobile Positioning in Wireless Mobile Networks Mobile Positioning in Wireless Mobile Networks Peter Brída Department of Telecommunications and Multimedia Faculty of Electrical Engineering University of Žilina SLOVAKIA Outline Why Mobile Positioning?

More information

What is a GPS How does GPS work? GPS Segments GPS P osition Position Position Accuracy Accuracy Accuracy GPS A pplications Applications Applications

What is a GPS How does GPS work? GPS Segments GPS P osition Position Position Accuracy Accuracy Accuracy GPS A pplications Applications Applications What is GPS? What is a GPS How does GPS work? GPS Segments GPS Position Accuracy GPS Applications What is GPS? The Global Positioning System (GPS) is a precise worldwide radio-navigation system, and consists

More information

Indian Regional Navigation Satellite System (IRNSS) / Navigation with Indian Constellation (NavIC) and GPS Aided Geo Augmented Navigation (GAGAN)

Indian Regional Navigation Satellite System (IRNSS) / Navigation with Indian Constellation (NavIC) and GPS Aided Geo Augmented Navigation (GAGAN) Indian Regional Navigation Satellite System (IRNSS) / Navigation with Indian Constellation (NavIC) and GPS Aided Geo Augmented Navigation (GAGAN) IRNSS-1A Gsat-8 IRNSS 7 November, 2016 Nilesh M. Desai

More information

European GNSS: Galileo and EGNOS for next generation Road Charging

European GNSS: Galileo and EGNOS for next generation Road Charging European GNSS: Galileo and EGNOS for next generation Road Charging 20 th October 2014 Gian Gherardo Calini European GNSS Agency (GSA) GNSS have made a huge impact in our society it is key in Road transportation

More information

Compact multi-gnss PPP corrections messages for transmission through a 250 bps channel

Compact multi-gnss PPP corrections messages for transmission through a 250 bps channel Compact multi-gnss PPP corrections messages for transmission through a 250 bps channel Ken Harima, School of Science, RMIT University Suelynn Choy, School of Science, RMIT University Chris Rizos, School

More information

Challenges and Methods for Integrity Assurance in Future GNSS

Challenges and Methods for Integrity Assurance in Future GNSS Challenges and Methods for Integrity Assurance in Future GNSS Igor Mozharov Division Head, Information and Analytical Center for PNT, Central Research Institute for Machine Building, Roscosmos igor.mozharov@mcc.rsa.ru

More information

METIS Second Master Training & Seminar. Augmentation Systems Available in Egypt

METIS Second Master Training & Seminar. Augmentation Systems Available in Egypt METIS Second Master Training & Seminar Augmentation Systems Available in Egypt By Eng. Ramadan Salem M. Sc. Surveying and Geodesy Email: ramadan_salem@link.net Page 1 Augmentation Systems Available in

More information

UNITED NATIONS UNIVERSITY Institute for Environment & Human Security (UNU-EHS) Bonn, Germany

UNITED NATIONS UNIVERSITY Institute for Environment & Human Security (UNU-EHS) Bonn, Germany UNITED NATIONS UNIVERSITY Institute for Environment & Human Security (UNU-EHS) Bonn, Germany Introduction to GPS technology Prof. Dr. Jörg Szarzynski Education Programme Director Head of Section EduSphere

More information

SATELLITE BASED AUGMENTATION SYSTEM (SBAS) FOR AUSTRALIA

SATELLITE BASED AUGMENTATION SYSTEM (SBAS) FOR AUSTRALIA SATELLITE BASED AUGMENTATION SYSTEM (SBAS) FOR AUSTRALIA AN AIN POSITION PAPER SUBMITTED TO VARIOUS GOVERNMENT DEPARTMENTS BY MR KYM OSLEY AM, CSC, EXEC SECRETARY AIN What are GNSS Augmentation Systems?

More information

3GPP TS V9.1.0 ( )

3GPP TS V9.1.0 ( ) TS 37.571-5 V9.1.0 (2011-12) Technical Specification 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Universal Terrestrial Radio Access (UTRA) and Evolved UTRA (E-UTRA)

More information

GPS: The Basics. Darrell R. Dean, Jr. Civil and Environmental Engineering West Virginia University. Expected Learning Outcomes for GPS

GPS: The Basics. Darrell R. Dean, Jr. Civil and Environmental Engineering West Virginia University. Expected Learning Outcomes for GPS GPS: The Basics Darrell R. Dean, Jr. Civil and Environmental Engineering West Virginia University Expected Learning Outcomes for GPS Explain the acronym GPS Name 3 important tdt dates in history of GPS

More information

Fast convergence of Trimble CenterPoint RTX by regional augmentation

Fast convergence of Trimble CenterPoint RTX by regional augmentation Fast convergence of Trimble CenterPoint RTX by regional augmentation Dr. Ralf Drescher Trimble Terrasat GmbH, Munich EGU General Assembly 2015, Vienna Thursday, 16 April 2015 Outline Introduction CenterPoint

More information

Benefits and Limitations of New GNSS Signal Designs. Dr. A. J. Van Dierendonck AJ Systems, USA November 18, 2014

Benefits and Limitations of New GNSS Signal Designs. Dr. A. J. Van Dierendonck AJ Systems, USA November 18, 2014 Benefits and Limitations of New GNSS Signal Designs Dr. A. J. Van Dierendonck AJ Systems, USA November 18, 2014 My Opinions on New GNSS Signal Designs This briefing is loosely based upon Leadership Series

More information

Establishment of Regional Navigation Satellite System Utilizing Quasi-Zenith Satellite System

Establishment of Regional Navigation Satellite System Utilizing Quasi-Zenith Satellite System Establishment of Regional Navigation Satellite System Utilizing Quasi-Zenith Satellite System Authors: Masayuki Saito*, Junichi Takiguchi* and Takeshi Okamoto* 1. Introduction The Global Navigation Satellite

More information

Global Navigation Satellite System and Augmentation

Global Navigation Satellite System and Augmentation Global Navigation Satellite System and Augmentation KCTSwamy Knowing about Global Navigation Satellite System (GNSS) is imperative for engineers, scientists as well as civilians because of its wide range

More information

Fundamentals of GPS Navigation

Fundamentals of GPS Navigation Fundamentals of GPS Navigation Kiril Alexiev 1 /76 2 /76 At the traditional January media briefing in Paris (January 18, 2017), European Space Agency (ESA) General Director Jan Woerner explained the knowns

More information

GPS Technical Overview N5TWP NOV08. How Can GPS Mislead

GPS Technical Overview N5TWP NOV08. How Can GPS Mislead GPS Technical Overview How Can GPS Mislead 1 Objectives Components of GPS Satellite Acquisition Process Position Determination How can GPS Mislead 2 Components of GPS Control Segment Series of monitoring

More information

The Indian Regional Navigation. First Position Fix with IRNSS. Successful Proof-of-Concept Demonstration

The Indian Regional Navigation. First Position Fix with IRNSS. Successful Proof-of-Concept Demonstration Successful Proof-of-Concept Demonstration First Position Fix with IRNSS A. S. GANESHAN, S. C. RATNAKARA, NIRMALA SRINIVASAN, BABU RAJARAM, NEETHA TIRMAL, KARTIK ANBALAGAN INDIAN SPACE RESEARCH ORGANISATION

More information

GLObal Navigation Satellite System (GLONASS)

GLObal Navigation Satellite System (GLONASS) FEDERAL SPACE AGENCY GLObal Navigation Satellite System (GLONASS) Sergey Revnivykh Deputy Director General Central Research Institute of Machine Building Head of PNT Center 4-th meeting of International

More information

GPS Receiver Testing

GPS Receiver Testing GPS Receiver Testing Application Note As GPS technology becomes more common, GPS receiver manufacturers, OEM integrators, and contract manufacturers struggle to determine the appropriate standard tests

More information

SBAS solution GCC, Yemen and Iraq System baseline and performance

SBAS solution GCC, Yemen and Iraq System baseline and performance SBAS solution GCC, Yemen and Iraq System baseline and performance ACAC Workshop Rabat 7 & 8 November 2017 1 2017 Thales Alenia Space PROPRIETARY C O M MINFORMATION E R C I A L I N THALES C O ALENIA N F

More information

Status of COMPASS/BeiDou Development

Status of COMPASS/BeiDou Development Status of COMPASS/BeiDou Development Stanford s 2009 PNT Challenges and Opportunities Symposium October 21-22,2009 Cao Chong China Technical Application Association for GPS Contents 1. Basic Principles

More information

Sounding the Atmosphere Ground Support for GNSS Radio-Occultation Processing

Sounding the Atmosphere Ground Support for GNSS Radio-Occultation Processing Sounding the Atmosphere Ground Support for GNSS Radio-Occultation Processing Atmospheric Sounding René Zandbergen & John M. Dow Navigation Support Office, Ground Systems Engineering Department, Directorate

More information

Signal Structures for Satellite-Based Navigation: Past, Present, and Future*

Signal Structures for Satellite-Based Navigation: Past, Present, and Future* Signal Structures for Satellite-Based Navigation: Past, Present, and Future* John W. Betz 23 April 2013 *Approved for Public Release; Distribution Unlimited. 13-0908. The contents of this material reflect

More information

DEFINING THE FUTURE OF SATELLITE SURVEYING WITH TRIMBLE R-TRACK TECHNOLOGY

DEFINING THE FUTURE OF SATELLITE SURVEYING WITH TRIMBLE R-TRACK TECHNOLOGY DEFINING THE FUTURE OF SATELLITE SURVEYING WITH TRIMBLE R-TRACK TECHNOLOGY EDMOND NORSE, GNSS PORTFOLIO MANAGER, TRIMBLE SURVEY DIVISION WESTMINSTER, CO USA ABSTRACT In September 2003 Trimble introduced

More information

Global Navigation Satellite Systems II

Global Navigation Satellite Systems II Global Navigation Satellite Systems II AERO4701 Space Engineering 3 Week 4 Last Week Examined the problem of satellite coverage and constellation design Looked at the GPS satellite constellation Overview

More information

Broadcasting System Time Scales Offsets in Navigation Messages. Assessment of Feasibility

Broadcasting System Time Scales Offsets in Navigation Messages. Assessment of Feasibility Broadcasting System Time Scales Offsets in Navigation Messages. Assessment of Feasibility A. Druzhin, A. Tyulyakov. A. Pokhaznikov Working Group A ICG-8, Dubai, United Arab Emirates 2 Rastrelli Square,

More information

Galileo & EGNOS Programmes Status

Galileo & EGNOS Programmes Status Galileo & EGNOS Programmes Status Ugo Celestino, European Commission EURO-MEDITERRANEAN TRANSPORT FORUM GNSS WORKING GROUP 16 th October 2012 17 October, 2012 The European GNSS Programmes 2 Table of contents

More information