Helicopter Aerial Laser Ranging
|
|
- Joella Marshall
- 5 years ago
- Views:
Transcription
1 Helicopter Aerial Laser Ranging Håkan Sterner TopEye AB P.O.Box 1017, SE Jönköping, Sweden 1 Introduction Measuring distances with light has been used for terrestrial surveys since the fifties. The instruments measured the distance between itself and a reflecting prism. When the Laser Range finder was introduced in military target acquisition systems a requirement to measure against basically any undefined surface with as few laser pulses as possible was introduced. The military requirement has driven the development of Laser Range Finders and hence generated an instrument technology that is well suited for capturing geographical information. Profiling systems, since 1970's airborne Laser Range Finders have been used to capture terrain profiles. The principle is basically that a geographically positioned aircraft measures the distance from the aircraft to the ground/object and consequently assigns a geographical position to the measured point on the ground. Scanning area/corridor capturing systems, basically creates a three dimensional digital terrain model (DTM) as the sensor is passing; push broom principle. The leading edge technology needed to build such a system has only recently been made available. Technology enhancements in the following areas have made it possible to make scanning systems: GPS positioning systems, accurate XYZ position. Inertial system, high resolution. Laser Range Finder; single pulse measurements with high Pulse Repetition Frequency. Scanning and stabilization systems. The advanced laser systems are made to be eye safe and have LRF's with a Pulse Repetition Frequency (PRF) up to 8000 Hz and a capability to distinguish multiple returns from each laser sounding. The absolute accuracy for a single point on the face of the earth can be better than 15 cm. 1.1 Key Applications Building digital terrain models is the principle application for any type of airborne Laser Range Finder. A key advantage versus alternate methods is that the laser, used as a "probe", makes it possible to penetrate through a tree canopy and hence finding the true ground. Advanced systems that can discriminate up to four returns from each laser pulse, provides a wealth of data that can be used to determine tree height, bushes, etc.
2 Applications are opened or augmented because the method circumvents previous obstacles. The advantages in this respect are possibly mainly the time and/or cost reduction concurrent with the technologies inherent advantages - reaching to the ground and measuring objects without texture such as tidal flats. Examples in this area are environmental modeling, related to natural disasters such as flooding, erosion and 3D city modeling for propagation models (telecommunication, noise, pollution..). Transmission lines can easily be mapped. One single survey flight can capture the data to: Map the location of the transmission towers and the right of way. Data to measure the line sag for each catinary - can be used in an engineering model to determine the transmission capacity of a segment ampacity. Identify potential danger trees - arcing between the conductor and a treetop can create forest fires and electricity outages. From the data set a work order can be generated to dispatch a field crew to take down a specific tree at a defined location (GPS coordinates). The same data set can be used for mapping, engineering and operational procedures and thus creates a new dimension in the use of spatial data. It is feasible to establish surveillance systems that on a regular basis monitor a transmission line for various parameters; encroachment, line sag, snow jeopardy, etc Danger Trees
3 2 Survey Process Any airborne survey system needs to take a number of factors into consideration. This paper discusses only the primary data acquisition process. Where the data capturing process ends and the mapping process starts determines to what extent data needs to be integrated with other information to produce the deliverable product. Survey Plan Survey Flight Post Proc. Airborne Equipment GPS Radio Link Post Processing Software Ground Reference Station 2.1 Survey Planning Part of the survey planning is standard procedure, for example; defining the survey area or object and planning the approach flight, refueling location, etc. Most are the same as for any aircraft operation. However, selecting reference points, plotting flight lines and way points requires an understanding of both flying and surveying. If the positioning system is based on GPS, the satellite availability and configuration must be checked for the period the survey flight is planned. The satellite configuration is correlated to achievable GPS position accuracy and is thus related to the required accuracy. The LRF sensor parameters need to be defined for systems using an advanced Laser Range Finder. Parameters such as beam divergence, ground separation between each laser pulse and how the returns shall be digitized. The selection is related to the purpose for which the data is to be used.
4 2.2 Survey flight - Capturing the Data The Laser Range Finder system is either designed for a special purpose dedicated aircraft or designed as a mobile system that can use a general-purpose aircraft. Saab has chosen the latter to accommodate maximum utilization of the system and to incorporate pilot guidance and support to make the survey flight itself as routine as ever possible. To achieve highest possible accuracy a ground reference station is needed to capture GPS data for the post processing. Commercial differential GPS services (e.g.rds; Oministar) or a radio link is needed to provide the pilot guidance system with better real-time accuracy. A Scanning Laser system is not affected by weather and lighting conditions. As the flying altitude is below 500 meters (1,600 feet) the cloud base is seldom a problem nor is turbulent air. However, rain and snowfall are conditions best avoided. 2.3 Post processing The post processing can be seen as two separate procedures. The first phase is related to determine the GPS position of the aircraft. Combining the GPS data from the aircraft with the data captured by the ground reference station does this. This will provide two very accurate positions for every second of the survey mission. Considering that up to 8000 laser soundings can be done per second, two GPS positions during the same time is far from sufficient. Henceforth, the second phase, is where the Inertial Navigation System (INS) data determines the exact position for each laser sounding. This position and the attitude of the scanner combined with the data from the LRF will produce up to four Geo-referenced XYZ positions for each laser sounding. To facilitate the subsequent processing of the data, each XYZ position is also tagged with a time stamp and quality information that defines what kind of laser echo was retained for every single position. Generating the DTM itself and extracting features is the next process and is not included in the primary data acquisition. Establishing the DTM is done according to common practice. Extracting a transmission line and determining the line sag between every tower is probably not that widespread practice and can be seen as one good illustration of what integration of advanced technology can do to be of service to the community. 3 Customer benefits 3.1 Lead time As the method is only to a limited extent affected by weather, tree canopy and other ground conditions, data can be captured when needed even if it is out of traditional season. The significantly shorter process time further reduces the total lead-time from identified need to available data.
5 3.2 Cost efficiency Capturing the data is less costly than alternate methods. The saving is due to elimination of activities such as ground control, model orientation, etc. The primary data is closer to the desired finished result that further enhances the cost efficiency compared with alternative methods. 3.3 Penetration to the ground Using photogrammetric methods requires that a given point be represented in two images constituting a stereo pair. This can be very difficult to achieve in both rural forested areas as well as in urban areas with high rise buildings and narrow streets. A single probing laser pulse will reach the ground in these types of areas and produce the XYZ coordinates from the ground. 3.4 High XYZ accuracy for small objects Measuring electrical transmission line sag has been a cumbersome task that with this method can be done in a highly automated process. Other survey and surveillance applications will surface as currently un-served needs are efficiently addressed. 4 Accuracy Defining accuracy is by itself a rather large task. The achieved absolute accuracy for an individual point is a result of the precision of a number of sub-systems: How accurate is each GPS position Precision and resolution of the INS How well can the LRF determine the distance between the sensor and the target. How precisely the scanner is moving. How fast and precise the stabilization system compensates for aircraft movements. XYZ 30cm 10 cm Absolute Accuracy Altitude Relative Accuracy The actual achieved accuracy is related to the quality of the engineering work, manufacturing of each component and the assembly of the system. The result will also be dependent of the professional skill of the team operating the system. The relative accuracy will be significantly better than the absolute due to the error contribution from the INS platform. The INS platform has a drift in accuracy that is stable in a short term perspective while the accuracy in GPS and LRF systems are more random.
6 An absolute accuracy of cm can be achieved with components available today. To reduce the absolute accuracy to better than 5 cm is probably beyond reach. The relative accuracy is significantly better and can be further enhanced by various filtering methods. 5 Past Technology Progression 5.1 Positioning GPS positioning systems that allows for 5-10 centimeter accurate XYZ positioning of the sensor platform that is today readily available. 5.2 Inertial Platforms - Laser Ring Gyro An inertial system that provides accurate position between the GPS fixes (2 Hz) and also controls the stabilization system is a required subsystem. The modern Laser Ring Gyros that is sturdy and fast enough to be used in-stable fighters planes, accommodates the need for fast and high precision inertial data. 5.3 Laser Range Finder A Laser Range Finder (LRF) using diode pumped lasers that allow for high pulse repeat frequencies is used to obtain high accuracy measurement and multiple distances from one single laser pulse. 5.4 Stabilized scanning Saab has during a number of years developed scanning and stabilization systems for optical systems. The technology has been used to produce a scanner that delivers a consistent laser scan pattern. 6 Helicopter versus Fixed Wing A Helicopter can operate from any reasonable flat area and does not need the access of an airfield. This is increases the operational efficiency and directly reduces operational expenses. It is easy for a Helicopter to follow any winding corridor. It can even stand still in the air and make turns without any banking - so called flat turns. A Helicopter is a remarkably stable aircraft even in turbulent air. Flying is normally done in uncontrolled airspace that further facilitates the ease of operation. A Helicopter will always be more expensive per flying hour versus a fixed wing aircraft. If the specific operational advantages of a Helicopter are not needed, then a fixed wing airplane is a better alternative.
7 The principles for rotary and fixed wing systems are the same. However, the engineering consideration that comes into play when designing a system for a Helicopter is quite different to a fixed wing aircraft. Other considerations that have a bearing on the system integration are related to the target applications. These are primarily: corridors versus area, desired map scale and accuracy together with different operational characteristic. As usually, there will never be a sole solution that is the best for everything 7 Future Developments Future developments are primarily to be expected in two areas; added sensor capabilities and to a larger extent, automated post processing of the captured data that produces the finished product faster and for less cost. Envisioned prospective sensors are better digital imaging devices such as infrared cameras, high resolution digital cameras, low light cameras, radar, etc. All combined with better storage systems. The most useful for most infrastructures related applications are expected to be infrared sensors and the high-resolution digital cameras.
Chapter 3 Data Acquisition in an Urban Environment
Chapter 3 Data Acquisition in an Urban Environment - One fundamental issue : cost of data 5-10 times of HW, SW, org ware, staff training, maintenance - Another issue : different kinds of data alphanumeric
More informationCombining Technologies: LiDaR, High Resolution Digital Images, Infrared Thermography and Geographic Information Systems
: LiDaR, High Resolution Digital Images, Infrared Thermography and Geographic Information Systems Presented by: Eldris Ferrer, Ms E, GIS Analyst and Remote Sensing Specialist, CSA Group Alexis Ocasio,
More informationGEO 428: DEMs from GPS, Imagery, & Lidar Tuesday, September 11
GEO 428: DEMs from GPS, Imagery, & Lidar Tuesday, September 11 Global Positioning Systems GPS is a technology that provides Location coordinates Elevation For any location with a decent view of the sky
More informationAIRCRAFT AVIONIC SYSTEMS
AIRCRAFT AVIONIC SYSTEMS B-777 cockpit Package C:\Documents and ettings\administrato Course Outline Radio wave propagation Aircraft Navigation Systems - Very High Omni-range (VOR) system - Instrument Landing
More informationHALS-H1 Ground Surveillance & Targeting Helicopter
ARATOS-SWISS Homeland Security AG & SMA PROGRESS, LLC HALS-H1 Ground Surveillance & Targeting Helicopter Defense, Emergency, Homeland Security (Border Patrol, Pipeline Monitoring)... Automatic detection
More informationRange Sensing strategies
Range Sensing strategies Active range sensors Ultrasound Laser range sensor Slides adopted from Siegwart and Nourbakhsh 4.1.6 Range Sensors (time of flight) (1) Large range distance measurement -> called
More informationPHOTOGRAMMETRY STEREOSCOPY FLIGHT PLANNING PHOTOGRAMMETRIC DEFINITIONS GROUND CONTROL INTRODUCTION
PHOTOGRAMMETRY STEREOSCOPY FLIGHT PLANNING PHOTOGRAMMETRIC DEFINITIONS GROUND CONTROL INTRODUCTION Before aerial photography and photogrammetry became a reliable mapping tool, planimetric and topographic
More informationPreliminary Datasheet
LONG-RANGE AIRBORNE LASER SCANNER LMS-Q680 FOR FULL WAVEFORM ANALYSIS The new long-range RIEGL LMS-Q680 airborne laser scanner makes use of a powerful laser source and of RIEGL s proprietary digital full
More information9/12/2011. Training Course Remote Sensing Basic Theory & Image Processing Methods September 2011
Training Course Remote Sensing Basic Theory & Image Processing Methods 19 23 September 2011 Remote Sensing Platforms Michiel Damen (September 2011) damen@itc.nl 1 Overview Platforms & missions aerial surveys
More informationLeica - 3 rd Generation Airborne Digital Sensors Features / Benefits for Remote Sensing & Environmental Applications
Leica - 3 rd Generation Airborne Digital Sensors Features / Benefits for Remote Sensing & Environmental Applications Arthur Rohrbach, Sensor Sales Dir Europe, Middle-East and Africa (EMEA) Luzern, Switzerland,
More informationAirborne Laser Scanning. Long-Range Airborne Laser Scanner for Full Waveform Analysis. visit our webpage LASER MEASUREMENT SYSTEMS
Long-Range Airborne Laser Scanner for Full Waveform Analysis LMS-Q680 The long-range RIEGL LMS-Q680 airborne laser scanner makes use of a powerful laser source and of RIEGL s proprietary digital full waveform
More informationFull Waveform Digitizing, Dual Channel Airborne LiDAR Scanning System for Ultra Wide Area Mapping
Full Waveform Digitizing, Dual Channel Airborne LiDAR Scanning System for Ultra Wide Area Mapping RIEGL LMS-Q56 high laser pulse repetition rate up to 8 khz digitization electronics for full waveform data
More informationGovt. Engineering College Jhalawar Model Question Paper Subject- Remote Sensing & GIS
Govt. Engineering College Jhalawar Model Question Paper Subject- Remote Sensing & GIS Time: Max. Marks: Q1. What is remote Sensing? Explain the basic components of a Remote Sensing system. Q2. What is
More informationLMS-Q780. Airborne Laser Scanning. Full Waveform Digitizing Airborne Laser Scanner for Wide Area Mapping. visit our website
Full Waveform Digitizing Airborne Laser Scanner for Wide Area Mapping LMS-Q78 up to 266 measurements/sec on the ground even from a typical operating altitude of 67 ft multiple time around processing: up
More informationMicrowave Remote Sensing
Provide copy on a CD of the UCAR multi-media tutorial to all in class. Assign Ch-7 and Ch-9 (for two weeks) as reading material for this class. HW#4 (Due in two weeks) Problems 1,2,3 and 4 (Chapter 7)
More informationSensor set stabilization system for miniature UAV
Sensor set stabilization system for miniature UAV Wojciech Komorniczak 1, Tomasz Górski, Adam Kawalec, Jerzy Pietrasiński Military University of Technology, Institute of Radioelectronics, Warsaw, POLAND
More informationAIRBORNE LASER SCANNER FOR FULL WAVEFORM ANALYSIS. visit our webpage
AIRBORNE LASER SCANNER LMS-Q560 FOR FULL WAVEFORM ANALYSIS The RIEGL LMS-Q560 is a revolutionary new D laser scanner using the latest state-of-the-art digital signal processing, which meets the most challenging
More informationDLR Project ADVISE-PRO Advanced Visual System for Situation Awareness Enhancement Prototype Introduction The Project ADVISE-PRO
DLR Project ADVISE-PRO Advanced Visual System for Situation Awareness Enhancement Prototype Dr. Bernd Korn DLR, Institute of Flight Guidance Lilienthalplatz 7 38108 Braunschweig Bernd.Korn@dlr.de phone
More informationRIEGL VQ -780i NEW. Airborne Laser Scanning. Waveform Processing Airborne Laser Scanner for Ultra Wide Area Mapping and High Productivity.
Waveform Processing Airborne Laser Scanner for Ultra Wide Area Mapping and High Productivity. NEW RIEGL VQ -78i online waveform processing as well as smart and full waveform recording excellent multiple
More informationNEW. Airborne Laser Scanning. Waveform Processing Airborne Laser Scanner for Wide Area Mapping and High Productivity. visit our website
Waveform Processing Airborne Laser Scanner for Wide Area Mapping and High Productivity. NEW RIEGL VQ -780i online waveform processing as well as smart and full waveform recording excellent multiple target
More informationAIRBORNE LASER SCANNER FOR FULL WAVEFORM ANALYSIS. visit our webpage
AIRBORNE LASER SCANNER LMS-Q560 FOR FULL WAVEFORM ANALYSIS The RIEGL LMS-Q560 is a revolutionary D laser scanner using the latest state-of-the-art digital signal processing, which meets the most challenging
More informationIGI Ltd. Serving the Aerial Survey Industry for more than 20 Years
'Photogrammetric Week 05' Dieter Fritsch, Ed. Wichmann Verlag, Heidelberg 2005. Kremer 33 IGI Ltd. Serving the Aerial Survey Industry for more than 20 Years JENS KREMER, Kreuztal ABSTRACT Since 1982 IGI
More informationEE Chapter 14 Communication and Navigation Systems
EE 2145230 Chapter 14 Communication and Navigation Systems Two way radio communication with air traffic controllers and tower operators is necessary. Aviation electronics or avionics: Avionic systems cover
More informationModule 3 Introduction to GIS. Lecture 8 GIS data acquisition
Module 3 Introduction to GIS Lecture 8 GIS data acquisition GIS workflow Data acquisition (geospatial data input) GPS Remote sensing (satellites, UAV s) LiDAR Digitized maps Attribute Data Management Data
More informationAERIAL SURVEYS COMPANY PROFILE
AERIAL SURVEYS COMPANY PROFILE Aerial Surveys, previously known as GeoSmart, is an innovative aerial photography and geospatial mapping service provider Our services enable customers to make better business
More informationHeterogeneous Control of Small Size Unmanned Aerial Vehicles
Magyar Kutatók 10. Nemzetközi Szimpóziuma 10 th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics Heterogeneous Control of Small Size Unmanned Aerial Vehicles
More informationNAVIGATION AND REMOTE SENSING PAYLOADS AND METHODS OF THE SARVANT UNMANNED AERIAL SYSTEM
NAVIGATION AND REMOTE SENSING PAYLOADS AND METHODS OF THE SARVANT UNMANNED AERIAL SYSTEM P. Molina, P. Fortuny, I. Colomina Institute of Geomatics -- Castelldefels (ES) M. Remy, K.A.C. Macedo, Y.R.C. Zúnigo,
More informationAN/APN-242 Color Weather & Navigation Radar
AN/APN-242 Color Weather & Navigation Radar Form, Fit and Function Replacement for the APN-59 Radar Previous Configuration: APN-59 Antenna Stabilization Data Generator Antenna Subsystem Radar Receiver
More informationCATEGORY 7 - NAVIGATION AND AVIONICS A. SYSTEMS, EQUIPMENT AND COMPONENTS
Commerce Control List Supplement No. 1 to Part 774 Category 7 page 1 CATEGORY 7 - NAVIGATION AND AVIONICS A. SYSTEMS, EQUIPMENT AND COMPONENTS N.B.1: For automatic pilots for underwater vehicles, see Category
More informationDual Channel Waveform Processing Airborne LiDAR Scanning System for High Point Density and Ultra Wide Area Mapping
Dual Channel Waveform Processing Airborne LiDAR Scanning System for High Point Density and Ultra Wide Area Mapping RIEGL VQ-156i high laser pulse repetition rate: up to 2 MHz up to 1.33 million measurements
More informationFlood modelling and management. Glasgow University. 8 September Paul Shaw - GeoVision
Flood modelling and management Glasgow University 8 September 2004 Paul Shaw - GeoVision How important are heights in flood modelling? Comparison of data collection technologies GPS - Global Positioning
More informationRevolutionizing 2D measurement. Maximizing longevity. Challenging expectations. R2100 Multi-Ray LED Scanner
Revolutionizing 2D measurement. Maximizing longevity. Challenging expectations. R2100 Multi-Ray LED Scanner A Distance Ahead A Distance Ahead: Your Crucial Edge in the Market The new generation of distancebased
More informationMicrowave Remote Sensing (1)
Microwave Remote Sensing (1) Microwave sensing encompasses both active and passive forms of remote sensing. The microwave portion of the spectrum covers the range from approximately 1cm to 1m in wavelength.
More informationHigh Resolution Sensor Test Comparison with SPOT, KFA1000, KVR1000, IRS-1C and DPA in Lower Saxony
High Resolution Sensor Test Comparison with SPOT, KFA1000, KVR1000, IRS-1C and DPA in Lower Saxony K. Jacobsen, G. Konecny, H. Wegmann Abstract The Institute for Photogrammetry and Engineering Surveys
More informationHardware Modeling and Machining for UAV- Based Wideband Radar
Hardware Modeling and Machining for UAV- Based Wideband Radar By Ryan Tubbs Abstract The Center for Remote Sensing of Ice Sheets (CReSIS) at the University of Kansas is currently implementing wideband
More informationEXAMPLES OF TOPOGRAPHIC MAPS PRODUCED FROM SPACE AND ACHIEVED ACCURACY CARAVAN Workshop on Mapping from Space, Phnom Penh, June 2000
EXAMPLES OF TOPOGRAPHIC MAPS PRODUCED FROM SPACE AND ACHIEVED ACCURACY CARAVAN Workshop on Mapping from Space, Phnom Penh, June 2000 Jacobsen, Karsten University of Hannover Email: karsten@ipi.uni-hannover.de
More informationAn NDVI image provides critical crop information that is not visible in an RGB or NIR image of the same scene. For example, plants may appear green
Normalized Difference Vegetation Index (NDVI) Spectral Band calculation that uses the visible (RGB) and near-infrared (NIR) bands of the electromagnetic spectrum NDVI= + An NDVI image provides critical
More informationAerial photography and Remote Sensing. Bikini Atoll, 2013 (60 years after nuclear bomb testing)
Aerial photography and Remote Sensing Bikini Atoll, 2013 (60 years after nuclear bomb testing) Computers have linked mapping techniques under the umbrella term : Geomatics includes all the following spatial
More informationConfiguration, Capabilities, Limitations, and Examples
FUGRO EARTHDATA, Inc. Introduction to the New GeoSAR Interferometric Radar Sensor Bill Sharp GeoSAR Regional Director - Americas Becky Morton Regional Manager Configuration, Capabilities, Limitations,
More informationBoeing MultiScan ThreatTrack Weather Radar Frequently Asked Questions. The next generation moving map (Cover Tag Line) and cabin flight system
Boeing MultiScan ThreatTrack Weather Radar Frequently Asked Questions The next generation moving map (Cover Tag Line) and cabin flight system Boeing MultiScan WXR ThreatTrack Frequently Asked Questions
More informationPRODUCT OVERVIEW FOR THE. Corona 350 II FLIR SYSTEMS POLYTECH AB
PRODUCT OVERVIEW FOR THE Corona 350 II FLIR SYSTEMS POLYTECH AB Table of Contents Table of Contents... 1 Introduction... 2 Overview... 2 Purpose... 2 Airborne Data Acquisition and Management Software (ADAMS)...
More informationUNERSITY OF NAIROBI UNIT: PRICIPLES AND APPLICATIONS OF REMOTE SENSING AND APLLIED CLIMATOLOGY
UNERSITY OF NAIROBI DEPARTMENT OF METEOROLOGY UNIT: PRICIPLES AND APPLICATIONS OF REMOTE SENSING AND APLLIED CLIMATOLOGY COURSE CODE: SMR 308 GROUP TWO: SENSORS MEMBERS OF GROUP TWO 1. MUTISYA J.M I10/2784/2006
More informationRelative Cost and Performance Comparison of GEO Space Situational Awareness Architectures
Relative Cost and Performance Comparison of GEO Space Situational Awareness Architectures Background Keith Morris Lockheed Martin Space Systems Company Chris Rice Lockheed Martin Space Systems Company
More informationSampling the World in 3D by Airborne LIDAR Assessing the Information Content of LIDAR Point Clouds
Sampling the World in 3D by Airborne LIDAR Assessing the Information Content of LIDAR Point Clouds PhoWo 2013 September 11 th, 2013 Stuttgart, Germany Andreas Ullrich RIEGL LMS GmbH sequential data acquisition
More informationActive and Passive Microwave Remote Sensing
Active and Passive Microwave Remote Sensing Passive remote sensing system record EMR that was reflected (e.g., blue, green, red, and near IR) or emitted (e.g., thermal IR) from the surface of the Earth.
More information3-D Imaging of Partly Concealed Targets by Laser Radar
Dietmar Letalick, Tomas Chevalier, and Håkan Larsson Swedish Defence Research Agency (FOI) PO Box 1165, Olaus Magnus väg 44 SE-581 11 Linköping SWEDEN e-mail: dielet@foi.se ABSTRACT Imaging laser radar
More informationA New Capability for Crash Site Documentation
A New Capability for Crash Site Documentation By Major Adam Cybanski, Directorate of Flight Safety, Ottawa Major Adam Cybanski is the officer responsible for helicopter investigation (DFS 2-4) at the Canadian
More informationJager UAVs to Locate GPS Interference
JIFX 16-1 2-6 November 2015 Camp Roberts, CA Jager UAVs to Locate GPS Interference Stanford GPS Research Laboratory and the Stanford Intelligent Systems Lab Principal Investigator: Sherman Lo, PhD Area
More informationPEGASUS : a future tool for providing near real-time high resolution data for disaster management. Lewyckyj Nicolas
PEGASUS : a future tool for providing near real-time high resolution data for disaster management Lewyckyj Nicolas nicolas.lewyckyj@vito.be http://www.pegasus4europe.com Overview Vito in a nutshell GI
More informationPROGRESS ON THE SIMULATOR AND EYE-TRACKER FOR ASSESSMENT OF PVFR ROUTES AND SNI OPERATIONS FOR ROTORCRAFT
PROGRESS ON THE SIMULATOR AND EYE-TRACKER FOR ASSESSMENT OF PVFR ROUTES AND SNI OPERATIONS FOR ROTORCRAFT 1 Rudolph P. Darken, 1 Joseph A. Sullivan, and 2 Jeffrey Mulligan 1 Naval Postgraduate School,
More informationRADAR CHAPTER 3 RADAR
RADAR CHAPTER 3 RADAR RDF becomes Radar 1. As World War II approached, scientists and the military were keen to find a method of detecting aircraft outside the normal range of eyes and ears. They found
More informationSECOND OPEN SKIES REVIEW CONFERENCE (OSRC) 2010
OSCC.RC/40/10 9 June 2010 Open Skies Consultative Commission ENGLISH only US Chair of the OSCC Review Conference SECOND OPEN SKIES REVIEW CONFERENCE (OSRC) 2010 7 to 9 June 2010 Working Session 2 Exploring
More informationDual Channel Waveform Processing Airborne LiDAR Scanning System for High-Point Density and Ultra-Wide Area Mapping
Dual Channel Waveform Processing Airborne LiDAR Scanning System for High-Point Density and Ultra-Wide Area Mapping RIEGL VQ-156i high laser pulse repetition rate up to 2 MHz up to 1.33 million measurements
More informationMODULE 7 LECTURE NOTES 3 SHUTTLE RADAR TOPOGRAPHIC MISSION DATA
MODULE 7 LECTURE NOTES 3 SHUTTLE RADAR TOPOGRAPHIC MISSION DATA 1. Introduction Availability of a reasonably accurate elevation information for many parts of the world was once very much limited. Dense
More informationSurveying in the Year 2020
Surveying in the Year 2020 Johannes Schwarz Leica Geosystems My first toys 2 1 3 Questions Why is a company like Leica Geosystems constantly developing new surveying products and instruments? What surveying
More informationUnmanned Aerial Vehicle Data Acquisition for Damage Assessment in. Hurricane Events
Unmanned Aerial Vehicle Data Acquisition for Damage Assessment in Hurricane Events Stuart M. Adams a Carol J. Friedland b and Marc L. Levitan c ABSTRACT This paper examines techniques for data collection
More informationMMW sensors for Industrial, safety, Traffic and security applications
MMW sensors for Industrial, safety, Traffic and security applications Philip Avery Director, Navtech Radar Ltd. Overview Introduction to Navtech Radar and what we do. A brief explanation of how FMCW radars
More informationAn Introduction to Airline Communication Types
AN INTEL COMPANY An Introduction to Airline Communication Types By Chip Downing, Senior Director, Aerospace & Defense WHEN IT MATTERS, IT RUNS ON WIND RIVER EXECUTIVE SUMMARY Today s global airliners use
More informationNovAtel SPAN and Waypoint GNSS + INS Technology
NovAtel SPAN and Waypoint GNSS + INS Technology SPAN Technology SPAN provides real-time positioning and attitude determination where traditional GNSS receivers have difficulties; in urban canyons or heavily
More informationAirborne Laser Scanning. Lightweight Airborne Laser Scanner with Online Waveform Processing. visit our website
Lightweight Airborne Laser Scanner with Online Waveform Processing RIEGL VUX-1LR 15 mm survey-grade accuracy scan speed up to 2 scans / second measurement rate up to 75, meas./sec operating flight altitude
More informationNEW. Airborne Laser Scanning. Dual Wavelength Waveform Processing Airborne LiDAR Scanning System for High-Point Density Mapping Applications
Dual Wavelength Waveform Processing Airborne LiDAR Scanning System for High-Point Density Mapping Applications NEW RIEGL VQ-156i-DW enhanced target characterization based upon simultaneous measurements
More informationRIEGL VUX-1UAV. Unmanned Laser Scanning. Lightweight UAV Laser Scanner with Online Waveform Processing. visit our website
Lightweight UAV Laser Scanner with Online Waveform Processing RIEGL VUX-1UAV 1 mm survey-grade accuracy scan speed up to 2 scans / second measurement rate up to 5, meas./sec (@ 55 khz PRR & 33 FOV) operating
More informationRemote Sensing Platforms
Types of Platforms Lighter-than-air Remote Sensing Platforms Free floating balloons Restricted by atmospheric conditions Used to acquire meteorological/atmospheric data Blimps/dirigibles Major role - news
More informationAirborne Laser Scanning. Topo-Hydrographic Airborne Laser Scanning System with Online Waveform Processing and Full Waveform Recording
Topo-Hydrographic Airborne Laser Scanning System with Online Waveform Processing and Full Waveform Recording RIEGL VQ-880-GH designed for combined topographic and hydrographic airborne survey high accuracy
More informationDETECTION OF SMALL AIRCRAFT WITH DOPPLER WEATHER RADAR
DETECTION OF SMALL AIRCRAFT WITH DOPPLER WEATHER RADAR Svetlana Bachmann 1, 2, Victor DeBrunner 3, Dusan Zrnic 2 1 Cooperative Institute for Mesoscale Meteorological Studies, The University of Oklahoma
More informationChapter 10 Navigation
Chapter 10 Navigation Table of Contents VHF Omnidirectional Range (VOR) VOR Orientation Course Determination VOR Airways VOR Receiver Check Points Automatic Direction Finder (ADF) Global Positioning System
More informationSMARTSCAN Smart Pushbroom Imaging System for Shaky Space Platforms
SMARTSCAN Smart Pushbroom Imaging System for Shaky Space Platforms Klaus Janschek, Valerij Tchernykh, Sergeij Dyblenko SMARTSCAN 1 SMARTSCAN Smart Pushbroom Imaging System for Shaky Space Platforms Klaus
More informationPHOTOGRAMMETRIC RESECTION DIFFERENCES BASED ON LABORATORY vs. OPERATIONAL CALIBRATIONS
PHOTOGRAMMETRIC RESECTION DIFFERENCES BASED ON LABORATORY vs. OPERATIONAL CALIBRATIONS Dean C. MERCHANT Topo Photo Inc. Columbus, Ohio USA merchant.2@osu.edu KEY WORDS: Photogrammetry, Calibration, GPS,
More informationDEVELOPMENT OF PASSIVE SURVEILLANCE RADAR
DEVELOPMENT OF PASSIVE SURVEILLANCE RADAR Kakuichi Shiomi* and Shuji Aoyama** *Electronic Navigation Research Institute, Japan **IRT Corporation, Japan Keywords: Radar, Passive Radar, Passive Surveillance
More informationAssessment of Unmanned Aerial Vehicle for Management of Disaster Information
Journal of the Korea Academia-Industrial cooperation Society Vol. 16, No. 1 pp. 697-702, 2015 http://dx.doi.org/10.5762/kais.2015.16.1.697 ISSN 1975-4701 / eissn 2288-4688 Assessment of Unmanned Aerial
More informationOBSTACLE DETECTION AND COLLISION AVOIDANCE USING ULTRASONIC DISTANCE SENSORS FOR AN AUTONOMOUS QUADROCOPTER
OBSTACLE DETECTION AND COLLISION AVOIDANCE USING ULTRASONIC DISTANCE SENSORS FOR AN AUTONOMOUS QUADROCOPTER Nils Gageik, Thilo Müller, Sergio Montenegro University of Würzburg, Aerospace Information Technology
More informationSPECIAL EFFECTS OF THE REGIONAL SATELLITE AUGMENTATION SYSTEM (RSAS)
St. D. Ilcev (Mangosuthu University of Technology (MUT) South Africa) SPECIAL EFFECTS OF THE REGIONAL SATELLITE AUGMENTATION SYSTEM (RSAS) This paper introduces the special effects of the new developed
More informationBy Pierre Olivier, Vice President, Engineering and Manufacturing, LeddarTech Inc.
Leddar optical time-of-flight sensing technology, originally discovered by the National Optics Institute (INO) in Quebec City and developed and commercialized by LeddarTech, is a unique LiDAR technology
More informationLMS-Q780. Airborne Laser Scanning. Full Waveform Digitizing Airborne Laser Scanner for Wide Area Mapping. Preliminary Datasheet
Full Waveform Digitizing Airborne Laser Scanner for Wide Area Mapping LMS-Q78 l up to 66 measurements/sec on the ground even from a typical operating altitude of 67 ft l multiple time around processing:
More informationCharacteristics and protection criteria for radars operating in the aeronautical radionavigation service in the frequency band
Recommendation ITU-R M.2008 (03/2012) Characteristics and protection criteria for radars operating in the aeronautical radionavigation service in the frequency band 13.25-13.40 GHz M Series Mobile, radiodetermination,
More informationEvaluation of Highway Mapping, Location and Design: Light Detection and Ranging (LDR)
Evaluation of Highway Mapping, Location and Design: Light Detection and Ranging (LDR) Amit Kumar Assistant Professor Department of Civil Engineering UIET, MDU, Rohtak (HR) ABSTRACT: Surface terrain information
More information39N6E KASTA-2E2 Low-Altitude 3D All-Round Surveillance Radar
39N6E KASTA-2E2 Low-Altitude 3D All-Round Surveillance Radar The Kasta-2E2 low-altitude 3D all-round surveillance radar is designed to control airspace and to perform automatic detection, range/azimuth/altitude
More informationProfiling Radiometer for Atmospheric and Cloud Observations PRACO
Profiling Radiometer for Atmospheric and Cloud Observations PRACO Boulder Environmental Sciences and Technology BEST Small startup company, established in 2006 Focused on radiometry ground based and airborne
More informationLesson 4: Photogrammetry
This work by the National Information Security and Geospatial Technologies Consortium (NISGTC), and except where otherwise Development was funded by the Department of Labor (DOL) Trade Adjustment Assistance
More informationBrainstorm. In addition to cameras / Kinect, what other kinds of sensors would be useful?
Brainstorm In addition to cameras / Kinect, what other kinds of sensors would be useful? How do you evaluate different sensors? Classification of Sensors Proprioceptive sensors measure values internally
More informationA Nuclear Plume Detection and Tracking Model for the Advanced Airborne Early Warning Surveillance Aircraft
A Nuclear Plume Detection and Tracking Model for e Advanced Airborne Early Warning Surveillance Aircraft Buddy H. Jeun *, John Younker * and Chih-Cheng Hung! * Lockheed Martin Aeronautical System Marietta,
More informationActive and Passive Microwave Remote Sensing
Active and Passive Microwave Remote Sensing Passive remote sensing system record EMR that was reflected (e.g., blue, green, red, and near IR) or emitted (e.g., thermal IR) from the surface of the Earth.
More informationDetection of traffic congestion in airborne SAR imagery
Detection of traffic congestion in airborne SAR imagery Gintautas Palubinskas and Hartmut Runge German Aerospace Center DLR Remote Sensing Technology Institute Oberpfaffenhofen, 82234 Wessling, Germany
More informationGhazanfar A. Khattak National Centre of Excellence in Geology University of Peshawar
INTRODUCTION TO REMOTE SENSING Ghazanfar A. Khattak National Centre of Excellence in Geology University of Peshawar WHAT IS REMOTE SENSING? Remote sensing is the science of acquiring information about
More information9/13/2011. Training Course Remote Sensing Basic Theory & Image Processing Methods September 2011
Training Course Remote Sensing Basic Theory & Image Processing Methods 19 23 September 2011 DIGITAL TERRAIN MODELS Introduction Michiel Damen (April 2011) damen@itc.nl 1 Digital Elevation and Terrain Models
More informationCooperative navigation: outline
Positioning and Navigation in GPS-challenged Environments: Cooperative Navigation Concept Dorota A Grejner-Brzezinska, Charles K Toth, Jong-Ki Lee and Xiankun Wang Satellite Positioning and Inertial Navigation
More informationSub-system and System Level Testing and Calibration of Space Altimeters and LIDARS.
Sub-system and System Level Testing and Calibration of Space Altimeters and LIDARS. Haris Riris, Pete Liiva, Xiaoli Sun, James Abshire Laser Remote Sensing Branch Goddard Space Flight Center, Greenbelt,
More informationAirborne Laser Scanning. Lightweight Airborne Laser Scanner with Online Waveform Processing. visit our website
Lightweight Airborne Laser Scanner with Online Waveform Processing RIEGL VUX-1LR 15 mm survey-grade accuracy scan speed up to 2 scans / second measurement rate up to 75, meas./sec operating flight altitude
More informationRIEGL VQ-580. Airborne Laser Scanning. Airborne Laser Scanner with Online Waveform Processing. visit our website
Airborne Laser Scanner with Online Waveform Processing RIEGL VQ-580 especially designed to measure on snow & ice high-accuracy ranging based on echo digitization and online waveform processing high laser
More informationNigerian 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 informationUnmanned Aerial Vehicles: A New Approach for Coastal Habitat Assessment
Unmanned Aerial Vehicles: A New Approach for Coastal Habitat Assessment David Ryan Principal Marine Scientist WorleyParsons Western Operations 2 OUTLINE Importance of benthic habitat assessment. Common
More informationDevelopment of a Compact, Pulsed, 2-Micron, Coherent- Detection, Doppler Wind Lidar Transceiver
Development of a Compact, Pulsed, 2-Micron, Coherent- Detection, Doppler Wind Lidar Transceiver Michael J. Kavaya, Upendra N. Singh, Grady J. Koch, Jirong Yu, Bo C. Trieu NASA Langley Research Center,
More informationChapter 4 DGPS REQUIREMENTS AND EQUIPMENT SELECTION
Chapter 4 DGPS REQUIREMENTS AND EQUIPMENT SELECTION 4.1 INTRODUCTION As discussed in the previous chapters, accurate determination of aircraft position is a strong requirement in several flight test applications
More informationFLCS V2.1. AHRS, Autopilot, Gyro Stabilized Gimbals Control, Ground Control Station
AHRS, Autopilot, Gyro Stabilized Gimbals Control, Ground Control Station The platform provides a high performance basis for electromechanical system control. Originally designed for autonomous aerial vehicle
More informationNAVIGATION (2) RADIO NAVIGATION
1 An aircraft is "homing" to a radio beacon whilst maintaining a relative bearing of zero. If the magnetic heading decreases, the aircraft is experiencing: A left drift B right drift C a wind from the
More informationPhase One 190MP Aerial System
White Paper Phase One 190MP Aerial System Introduction Phase One Industrial s 100MP medium format aerial camera systems have earned a worldwide reputation for its high performance. They are commonly used
More information746A27 Remote Sensing and GIS. Multi spectral, thermal and hyper spectral sensing and usage
746A27 Remote Sensing and GIS Lecture 3 Multi spectral, thermal and hyper spectral sensing and usage Chandan Roy Guest Lecturer Department of Computer and Information Science Linköping University Multi
More informationRECOMMENDATION ITU-R S.1340 *,**
Rec. ITU-R S.1340 1 RECOMMENDATION ITU-R S.1340 *,** Sharing between feeder links the mobile-satellite service and the aeronautical radionavigation service in the Earth-to-space direction in the band 15.4-15.7
More informationRotary Wing DVE Solution Proof Of Concept Live Demonstration
Rotary Wing DVE Solution Proof Of Concept Live Demonstration Erez Nur, Flare Vision LTD. erez@flare.co.il Slide 1 Introduction What is the problem Environmental problem: degraded visual conditions Human
More informationWhat 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