# Global Navigation Satellite Systems (GNSS)Part I EE 570: Location and Navigation

Size: px
Start display at page:

## Transcription

1 Lecture Global Navigation Satellite Systems (GNSS)Part I EE 570: Location and Navigation Lecture Notes Update on April 25, 2016 Aly El-Osery and Kevin Wedeward, Electrical Engineering Dept., New Mexico Tech In collaboration with Stephen Bruder, Electrical & Computer Engineering, Embry-Riddle Aeronautical University.1 Dead Reckoning vs Position Fixing Navigation can be accomplished via position fixing or dead reckoning 1. Dead Reckoning Measures changes in position and/or attitude Inertial sensors provide relative position (and attitude) 2. Position Fixing Directly measuring location GPS provides absolute positino (and velocity) How does GPS work? Effectively via Multilateration If I can measure my distance to three (or more) satellites at known locations, then, own location can be resolved. Measure distance via time-of-flight.2 GNSS GNSS A generic term used to describe these navigation systems that provide a user with 3-D positioning solution using RF ranging of signals transmitted by orbiting satellite GNSS examples include NAVSTAR Navigation by Satellite Ranging and Timing operated by the United States commonly referred to as Global Positing System (GPS) GLONASS Russian Galileo European Beidou China.3 GNSS Architecture Space segment (satellites) Control segment User segment.4 1

2 Space Segment Collection of satellites known as constellation Broadcasts signals to control segement and the users Distributed among different medium Earth orbits (MEOs) GPS satellites orbit at a radius of 26,580km two orbits per sidereal day.5 Control Segment Consists of monitoring stations at surveyed locations with synchronized clocks and collects ranging measurements control stations received data from monitoring stations and calculates corrections uplink stations sends commands to the satellites..6 GNSS Signals In general, a GNSS signal is a carrier with a spreading code modulated using binary phase shift keying (BPSK) given by s(t) = 2P C(t)D(t) cos(2πf ca t + φ 0 ) (1) where P is the signal power, C(t) is the spreading code, D(t) is the data, f ca is the carrier frequency, and φ 0 is the phase offset. C(t) and D(t) have ±1 values..7 BPSK carrier data BPSK.8 2

3 Spreading Code data PRN spread data.9 Signal Power Orignal signal despread signal noise level Spread signal Spread signal.10 GPS Modulation Schemes The GPS employs BPSK modulation at two frequencies L1=1, MHz L2=1, MHz Two main PRN code C/A: Course acquistion (10-bit 1MHz) P: Precise 40-bit 10MHz Encrypted P(Y) code.11 Ranging Basics By determining the phase of the received PRN code the raw pseudo-range to a given satellite is given by ρ s a,r = ( t s sa t s st,a)c (2) where t s sa is the transmission time of the signal from the satellite, s, t s st,a is the arrival time at antenna, a, and c is the speed of light..12 3

4 True Range, LOS and Range Rates The true range from an antenna a to a satellite s in the ECEF frame is given by r as = r e es(t s st,a) r e ea(t s sa,a) + δρ s ie,a (3) where δρ s ie,a is a correction factor due to rotation of the earth causing Sagnac effect. The line-of-sight unit vector (direction from which a signal arrives at the user antenna) in the ECEF frame is given by u e as r e es(t s st,a) r e ea(t s sa,a) r e es(t s st,a) r e ea(t s (4) sa,a) The range rate using ECEF velocities is r as = ( u e as) T ( v e es(t s st,a) v e es(t s sa,a)) + δ ρ s ie,a (5).13 Sagnac Correction The Sagnac correction is approximated as δρ s ie,a ω ie c [ y e es (t s st,a)x e ea(t s sa,a) x e es(t s st,a)y e ea(t s sa,a) ] (6) and the range-rate Sagnac correction is v δ ρ s ie,a ω es,y(t e s st,a)x e ea(t s sa,a) + yes(t e s st,a)vea,x(t e s sa,a) ie v c es,x(t e s st,a)yea(t e s sa,a) x e es(t s st,a)vea,y(t e s sa,a) 0 (7).14 Multilateration Use the range to multiple satellites to determine the position of the user equipment..15 Geometric Dillution of Precision GNSS solution is affected by the geometry of the satellite constellation observed by the receiver antenna. 4

5 .16 Positioning All measurements are in ECEF ρ i = (x i x) 2 + (y i y) 2 + (z i z) 2 ρ 2 i = x 2 i + x 2 2x i x + y 2 i + y 2 2y i y + z 2 i + z 2 2z i z ρ 2 i (x 2 i + yi 2 + zi 2 ) (x 2 + y 2 + z 2 ) = 2x i x 2y i y 2z i z ρ 2 1 (x y1 2 + z1) 2 re 2 2x 1 2y 1 2z 1 ρ 2 2 (x y2 2 + z 2 2) re 2 x. = 2x 2 2y 2 2z 2 y. z ρ 2 n (x 2 n + yn 2 + zn) 2 r e 2x n 2y n 2z n.17 Measurements of pseudorange In reality there are errors in the propagation model used for the signal due to ionosphere and the troposphere. In addition there are clock errors both at the satellite and the receiver. Consquently, the pseudorange measurement is given by ρ measured =ρ true + ɛ ionospheric + ɛ tropospheric + ɛ ephemeris + ɛ satellite clock + ɛ receiver clock + ɛ multipath (8) 5

6 (blog by manumanu) Error Mitigation Techniques Differential GPS Measure pseudorange error at surveyed locations Subtract error at the user equipment before calculating position.19 Error Mitigation Techniques WAAS GPS Wide Area Augmentation System Provide corrections based on user position Assumes atomospheric errors are locally correlated..20 6

### EE 570: Location and Navigation

EE 570: Location and Navigation Global Navigation Satellite Systems (GNSS) Part I Aly El-Osery Kevin Wedeward Electrical Engineering Department, New Mexico Tech Socorro, New Mexico, USA In Collaboration

### EE 570: Location and Navigation

EE 570: Location and Navigation INS/GPS Integration Aly El-Osery 1 Stephen Bruder 2 1 Electrical Engineering Department, New Mexico Tech Socorro, New Mexico, USA 2 Electrical and Computer Engineering Department,

### 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

### UNIT 1 - introduction to GPS

UNIT 1 - introduction to GPS 1. GPS SIGNAL Each GPS satellite transmit two signal for positioning purposes: L1 signal (carrier frequency of 1,575.42 MHz). Modulated onto the L1 carrier are two pseudorandom

### 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

### 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

### 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

### 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

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

### Global Positioning System: what it is and how we use it for measuring the earth s movement. May 5, 2009

Global Positioning System: what it is and how we use it for measuring the earth s movement. May 5, 2009 References Lectures from K. Larson s Introduction to GNSS http://www.colorado.edu/engineering/asen/

### 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

### 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

### 3D-Map Aided Multipath Mitigation for Urban GNSS Positioning

Summer School on GNSS 2014 Student Scholarship Award Workshop August 2, 2014 3D-Map Aided Multipath Mitigation for Urban GNSS Positioning I-Wen Chu National Cheng Kung University, Taiwan. Page 1 Outline

### 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

### 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

### 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?

### Modelling GPS Observables for Time Transfer

Modelling GPS Observables for Time Transfer Marek Ziebart Department of Geomatic Engineering University College London Presentation structure Overview of GPS Time frames in GPS Introduction to GPS observables

### An Introduction to GPS

An Introduction to GPS You are here The GPS system: what is GPS Principles of GPS: how does it work Processing of GPS: getting precise results Yellowstone deformation: an example What is GPS? System to

### 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

### 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

### Introduction to the Global Positioning System

GPS for Fire Management - 2004 Introduction to the Global Positioning System Pre-Work Pre-Work Objectives Describe at least three sources of GPS signal error, and identify ways to mitigate or reduce those

### 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.

### 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)

### 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

### Bernhard Hofnlann-Wellenhof Herbert Lichtenegger Elmar Wasle. GNSS - Global Navigation Satellite Systenls. GPS, GLONASS, Galileo, and nl0re

Bernhard Hofnlann-Wellenhof Herbert Lichtenegger Elmar Wasle GNSS - Global Navigation Satellite Systenls GPS, GLONASS, Galileo, and nl0re SpringerWienNewYork Contents Abbreviations xxi 1 Introduction 1

### 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

### 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

### ESTIMATION OF IONOSPHERIC DELAY FOR SINGLE AND DUAL FREQUENCY GPS RECEIVERS: A COMPARISON

ESTMATON OF ONOSPHERC DELAY FOR SNGLE AND DUAL FREQUENCY GPS RECEVERS: A COMPARSON K. Durga Rao, Dr. V B S Srilatha ndira Dutt Dept. of ECE, GTAM UNVERSTY Abstract: Global Positioning System is the emerging

### 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

### 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

### 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

### 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

### 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,

### Proceedings of Al-Azhar Engineering 7 th International Conference Cairo, April 7-10, 2003.

Proceedings of Al-Azhar Engineering 7 th International Conference Cairo, April 7-10, 2003. MODERNIZATION PLAN OF GPS IN 21 st CENTURY AND ITS IMPACTS ON SURVEYING APPLICATIONS G. M. Dawod Survey Research

### GPS Accuracies in the Field

GPS Accuracies in the Field A short and informative talk by A. Richard Vannozzi, PLS Assistant Professor of Civil Technology/Surveying and Mapping Thompson School of Applied Science University of New Hampshire

### A Distribution Method of High Precise Differential Corrections for a Network Beidou/RTK System Based on Vehicular Networks

BULGARIAN ACADEMY OF SCIENCES CYBERNETICS AND INFORMATION TECHNOLOGIES Volume 15, No 5 Special Issue on Control in Transportation Systems Sofia 215 Print ISSN: 1311-972; Online ISSN: 1314-481 DOI: 1.1515/cait-215-24

### Wednesday AM: (Doug) 2. PS and Long Period Signals

Wednesday AM: (Doug) 2 PS and Long Period Signals What is Colorado famous for? 32 satellites 12 Early on in the world of science synchronization of clocks was found to be important. consider Paris: puffs

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

### COMPARISON BETWEEN BROADCAST AND PRECISE ORBITS: GPS GLONASS GALILEO AND BEIDOU. A. Caporali and L. Nicolini University of Padova, Italy

COMPARISON BETWEEN BROADCAST AND PRECISE ORBITS: GPS GLONASS GALILEO AND BEIDOU A. Caporali and L. Nicolini University of Padova, Italy Summary Previous works Input data and method used Comparison between

### 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

GNSS Solutions: Code Tracking & Pseudoranges GNSS Solutions is a regular column featuring questions and answers about technical aspects of GNSS. Readers are invited to send their questions to the columnist,

### TREBALL DE FI DE CARRERA

TREBALL DE FI DE CARRERA TFC TITLE: Positioning in urban environments DEGREE: Master in Aerospace Science and Technology AUTHOR: Jan Sanromà Sánchez ADVISOR: Jaume Sanz SUPERVISOR: Olivier Julien DATE:

### Using GPS in Embedded Applications Pascal Stang Stanford University - EE281 November 28, 2000

Using GPS in Embedded Applications Pascal Stang Stanford University - EE281 INTRODUCTION Brief history of GPS Transit System NavStar (what we now call GPS) Started development in 1973 First four satellites

### Security of Global Navigation Satellite Systems (GNSS) GPS Fundamentals GPS Signal Spoofing Attack Spoofing Detection Techniques

Security of Global Navigation Satellite Systems (GNSS) GPS Fundamentals GPS Signal Spoofing Attack Spoofing Detection Techniques Global Navigation Satellite Systems (GNSS) Umbrella term for navigation

### Precise Positioning with Smartphones running Android 7 or later

Precise Positioning with Smartphones running Android 7 or later * René Warnant, * Cécile Deprez, + Quentin Warnant * University of Liege Geodesy and GNSS + Augmenteo, Plaine Image, Lille (France) Belgian

### The Global Positioning System

The Global Positioning System Principles of GPS positioning GPS signal and observables Errors and corrections Processing GPS data GPS measurement strategies Precision and accuracy E. Calais Purdue University

### Radar Probabilistic Data Association Filter with GPS Aiding for Target Selection and Relative Position Determination. Tyler P.

Radar Probabilistic Data Association Filter with GPS Aiding for Target Selection and Relative Position Determination by Tyler P. Sherer A thesis submitted to the Graduate Faculty of Auburn University in

### The GLOBAL POSITIONING SYSTEM James R. Clynch February 2006

The GLOBAL POSITIONING SYSTEM James R. Clynch February 2006 I. Introduction What is GPS The Global Positioning System, or GPS, is a satellite based navigation system developed by the United States Defense

### Global Positioning Systems (GPS) Trails: the achilles heel of mapping from the air / satellites

Global Positioning Systems (GPS) Trails: the achilles heel of mapping from the air / satellites Google maps updated regularly by local users using GPS Also: http://openstreetmaps.org GPS applications

### 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,

### Guochang Xu GPS. Theory, Algorithms and Applications. Second Edition. With 59 Figures. Sprin ger

Guochang Xu GPS Theory, Algorithms and Applications Second Edition With 59 Figures Sprin ger Contents 1 Introduction 1 1.1 AKeyNoteofGPS 2 1.2 A Brief Message About GLONASS 3 1.3 Basic Information of Galileo

### 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

### Introduction to DGNSS

Introduction to DGNSS Jaume Sanz Subirana J. Miguel Juan Zornoza Research group of Astronomy & Geomatics (gage) Technical University of Catalunya (UPC), Spain. Web site: http://www.gage.upc.edu Hanoi,

### Introduction to NAVSTAR GPS

Introduction to NAVSTAR GPS Charlie Leonard, 1999 (revised 2001, 2002) The History of GPS Feasibility studies begun in 1960 s. Pentagon appropriates funding in 1973. First satellite launched in 1978. System

### Name: Chengming Jin Supervisor: Allison Kealy. GNSS-based Positioning Scheme & Application in Safety-critical Systems of Rail Transport

Name: Chengming Jin Supervisor: Allison Kealy GNSS-based Positioning Scheme & Application in Safety-critical Systems of Rail Transport CONTENT 1 Introduction 2 Challenges 3 Solutions Introduction How Modern

### 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

### Introduction to the Global Positioning System

GPS for ICS - 2003 Introduction to the Global Positioning System Pre-Work Pre-Work Objectives Describe at least three sources of GPS signal error, and ways to mitigate or reduce those errors. Identify

### DYNAMIC POSITIONING CONFERENCE October 7-8, Sensors I. Integrating Other GNSS with GPS and its Implication for DP Positioning

Return to Session Directory DYNAMIC POSITIONING CONFERENCE October 7-8, 2008 Sensors I Integrating Other GNSS with GPS and its Implication for DP Positioning Dr. David Russell Veripos/Subsea 7 (Aberdeen,

### Foreword by Glen Gibbons About this book Acknowledgments List of abbreviations and acronyms List of definitions

Table of Foreword by Glen Gibbons About this book Acknowledgments List of abbreviations and acronyms List of definitions page xiii xix xx xxi xxv Part I GNSS: orbits, signals, and methods 1 GNSS ground

### Ultra-wideband Radio Aided Carrier Phase Ambiguity Resolution in Real-Time Kinematic GPS Relative Positioning. Eric Broshears

Ultra-wideband Radio Aided Carrier Phase Ambiguity Resolution in Real-Time Kinematic GPS Relative Positioning by Eric Broshears AthesissubmittedtotheGraduateFacultyof Auburn University in partial fulfillment

### Global Positioning System (GPS) Positioning Errors During Ionospheric Scintillation Event. Keywords: GPS; scintillation; positioning error

Jurnal Teknologi Full paper Global Positioning System (GPS) Positioning Errors During Ionospheric Scintillation Event Y. H. Ho a*, S. Abdullah b, M. H. Mokhtar b a Faculty of Electronic and Computer Engineering,

### Integrity of Satellite Navigation in the Arctic

Integrity of Satellite Navigation in the Arctic TODD WALTER & TYLER REID STANFORD UNIVERSITY APRIL 2018 Satellite Based Augmentation Systems (SBAS) in 2018 2 SBAS Networks in 2021? 3 What is Meant by Integrity?

### 2 INTRODUCTION TO GNSS REFLECTOMERY

2 INTRODUCTION TO GNSS REFLECTOMERY 2.1 Introduction The use of Global Navigation Satellite Systems (GNSS) signals reflected by the sea surface for altimetry applications was first suggested by Martín-Neira

### 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

### Bring satellites into your lab: GNSS simulators from the T&M expert.

Bring satellites into your lab: GNSS simulators from the T&M expert. www.rohde-schwarz.com/gnss-solutions Your challenge GNSS receiver tests can only be conclusive when they are performed under realistic

### Sources of Error in Satellite Navigation Positioning

http://www.transnav.eu the International Journal on Marine Navigation and Safety of Sea Transportation Volume 11 Number 3 September 2017 DOI: 10.12716/1001.11.03.04 Sources of Error in Satellite Navigation

### 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

### Attitude Determination of Small Satellite: The GNSS Paradigm

Attitude Determination of Small Satellite: The GNSS Paradigm Dr. Najam Abbas Naqvi Assistant Professor Department of Aeronautics and Astronautics Institute of Space Technology Islamabad, Pakistan Personal

### NavX -NCS The first Galileo/GPS full RF Navigation Constellation Simulator

NavX -NCS The first Galileo/GPS full RF Navigation Constellation Simulator Guenter Heinrichs, IFEN GmbH Markus Irsigler, IFEN GmbH Robert Wolf, IFEN GmbH Jón Winkel, IFEN GmbH Günther Prokoph, Work Microwave

### RFI Impact on Ground Based Augmentation Systems (GBAS)

RFI Impact on Ground Based Augmentation Systems (GBAS) Nadia Sokolova SINTEF ICT, Dept. Communication Systems SINTEF ICT 1 GBAS: General Concept - improves the accuracy, provides integrity and approach

### 2. GPS and GLONASS Basic Facts

2. GPS and GLONASS Basic Facts In 1973 the U.S. Department of Defense decided to establish, develop, test, acquire, and deploy a spaceborne Global Positioning System (GPS). The result of this decision

### Monitoring the Ionosphere and Neutral Atmosphere with GPS

Monitoring the Ionosphere and Neutral Atmosphere with GPS Richard B. Langley Geodetic Research Laboratory Department of Geodesy and Geomatics Engineering University of New Brunswick Fredericton, N.B. Division

### Clock Synchronization of Pseudolite Using Time Transfer Technique Based on GPS Code Measurement

, pp.35-40 http://dx.doi.org/10.14257/ijseia.2014.8.4.04 Clock Synchronization of Pseudolite Using Time Transfer Technique Based on GPS Code Measurement Soyoung Hwang and Donghui Yu* Department of Multimedia

### Satellite-Induced Multipath Analysis on the Cause of BeiDou Code Pseudorange Bias

Satellite-Induced Multipath Analysis on the Cause of BeiDou Code Pseudorange Bias Hailong Xu, Xiaowei Cui and Mingquan Lu Abstract Data from previous observation have shown that the BeiDou satellite navigation

### GNSS Technologies. GNSS Acquisition Dr. Zahidul Bhuiyan Finnish Geospatial Research Institute, National Land Survey

GNSS Acquisition 25.1.2016 Dr. Zahidul Bhuiyan Finnish Geospatial Research Institute, National Land Survey Content GNSS signal background Binary phase shift keying (BPSK) modulation Binary offset carrier

### Test Solutions for Simulating Realistic GNSS Scenarios

Test Solutions for Simulating Realistic GNSS Scenarios Author Markus Irsigler, Rohde & Schwarz GmbH & Co. KG Biography Markus Irsigler received his diploma in Geodesy and Geomatics from the University

### Bring satellites into your lab

Bring satellites into your lab GNSS simulators from the T&M expert 5215.5042.32 02.01 PDP 1 en www.rohde-schwarz.com/gnss-solutions GNSS-Simulators--------Bring-satellites_fly_5215-5042-32_v0201.indd 7

### 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

### The added value of new GNSS to monitor the ionosphere

The added value of new GNSS to monitor the ionosphere R. Warnant 1, C. Deprez 1, L. Van de Vyvere 2 1 University of Liege, Liege, Belgium. 2 M3 System, Wavre, Belgium. Monitoring TEC for geodetic applications

### The Wide Area Augmentation System

The Wide Area Augmentation System Stanford University http://waas.stanford.edu What is Augmentation? 2 Add to GNSS to Enhance Service Improve integrity via real time monitoring Improve availability and

### 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

### Study and analysis of Differential GNSS and Precise Point Positioning

IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-issn: 2278-1676,p-ISSN: 2320-3331, Volume 9, Issue 2 Ver. I (Mar Apr. 2014), PP 53-59 Study and analysis of Differential GNSS and Precise

### 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

### 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

### Global Correction Services for GNSS

Global Correction Services for GNSS Hemisphere GNSS Whitepaper September 5, 2015 Overview Since the early days of GPS, new industries emerged while existing industries evolved to use position data in real-time.

### GSS8000. Highlights of the GSS8000 series. Multiple Signals Combined. Comprehensive Modelling. Unmatched Pedigree and Support

GSS8000 SERIES GSS8000 Highlights of the GSS8000 series The GSS8000 series has been designed to meet all the demanding requirements of research and development teams involved in satellite navigation and

### 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

### Introduction to GNSS Base-Station

Introduction to GNSS Base-Station Dinesh Manandhar Center for Spatial Information Science The University of Tokyo Contact Information: dinesh@iis.u-tokyo.ac.jp Slide : 1 Introduction GPS or GNSS observation

### Evaluation of Multi-Constellation GNSS Precise Point Positioning (PPP) Techniques in Egypt

Evaluation of Multi-Constellation GNSS Precise Point Positioning (PPP) Techniques in Egypt Mahmoud Abd Rabbou and Adel El-Shazly Department of Civil Engineering, Cairo University Presented by; Dr. Mahmoud

### 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

### 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

### LOCALIZATION WITH GPS UNAVAILABLE

LOCALIZATION WITH GPS UNAVAILABLE ARES SWIEE MEETING - ROME, SEPT. 26 2014 TOR VERGATA UNIVERSITY Summary Introduction Technology State of art Application Scenarios vs. Technology Advanced Research in

### Introduction to GNSS

Introduction to GNSS Dimitrios Bolkas, Ph.D. Department of Surveying Engineering, Pennsylvania State University, Wilkes Barre Campus PSLS Surveyor s Conference Hershey, PA Global Navigation Satellite System

### 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

### Satellite Navigation Science and Technology for Africa. 23 March - 9 April, Satellite Navigation

2025-45 Satellite Navigation Science and Technology for Africa 23 March - 9 April, 2009 Satellite Navigation MISRA Pratap The MITRE Corporation 202 Burlington Rd. / Rte 62 Bedford MA 01730-1420 U.S.A.

### Data Acquisition Experiment using NovAtel Dual Frequency GPS Receiver

Data Acquisition Experiment using NovAtel Dual Frequency GPS Receiver Dhiraj Sunehra Jawaharlal Nehru Technological University Hyderabad, Andhra Pradesh, India Abstract The advent of very large scale integration

### 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

### Lecture 2 Satellite orbits and clocks computation and accuracy

Lecture 2 Satellite orbits and clocks computation and accuracy Contact: jaume.sanz@upc.edu Web site: http://www.gage.upc.edu 1 Authorship statement The authorship of this material and the Intellectual