Global Navigation Satellite Systems Engineering, Policy, and Design
Q: How do measurement errors propagate into GNSS position estimates?
A: Not surprisingly, GNSS positioning accuracy is largely dependent on the level of measurement errors induced by orbital inaccuracies, atmospheric effects, multipath, and noise. This article discusses how, specifically, these errors manifest as position errors.
By Inside GNSS
The small satellite “Technologie-Erprobungs-Träger 1” (TET-1) is the first spacecraft developed for the German Aerospace Center (DLR) On-Orbit-Verification (OOV) program, which provides flight opportunities dedicated to testing and qualification of new technologies in space. The satellite was lifted into a low-Earth orbit (LEO) on July 22, 2012, from the launch site in Baikonur, Kazakhstan.
By Inside GNSS
The 12th Conference on Space Weather, sponsored by the American Meteorological Society, and organized by the AMS Committee on Space Weather, will be held 4–8 January 2015, as part of the 95th AMS Annual Meeting in Phoenix, Arizona.
Abstract Submission deadline is August 1, 2014.
By Inside GNSS
The IEEE Conference on Intelligent Transportation Systems (ITSC 2014) will take place at the Hyatt Regency Qingdao in Qingdao, China on October 8-11, 2014.
The annual flagship conference of the IEEE Intelligent Transportation Systems Society, IEEE ITSC 2014 welcomes articles in the field of Intelligent Transportation Systems, conveying new developments in theory, analytical and numerical simulation and modeling, experimentation, advanced deployment and case studies, results of laboratory or field operational tests.
Special sessions:
By Inside GNSS
The Intelligent Transportation Society of America (ITS America) will host the 21st World Congress on Intelligent Transport Systems from September 7-11, 2014 at the Cobo Center in Detroit, Michigan.
This year’s theme is “Reinventing Transportation in our Connected World”.
By Inside GNSS
Updated National Seismic Hazard Maps released by the U.S. Geological Survey (USGS) on Thursday (July 17, 2014) indicate a higher level of earthquake risk for the West Coast and some areas of the Midwest and East Coast then previously thought.
By Inside GNSS
NovAtel Inc. has announced a promotion for existing customers for the company’s recently launched NovAtel CORRECT with TerraStar PPP subscription service.
Customers using NovAtel legacy equipment (OEMV generation receivers or earlier) or NovAtel’s current OEM6 technology qualify for the following offers:
• Trade in legacy NovAtel hardware for a FlexPak6, antenna, and one-year TerraStar subscription for $4,995.
As the Air Force contemplates changing its GPS III prime contractor in the face of program delays, sources say it is also weighing much broader program changes to help it weather years of continued lean budgets.
By Inside GNSS
Two powerful lawmakers are weighing rewriting the rules for the way frequencies are allocated as part of an overhaul of the nation’s telecommunications laws. The effort, which is likely to see legislation drafted next year, is considering options such as flexible licensing and receiver standards that could directly affect the GPS community.
By Inside GNSS
The Institute of Navigation is partnering with the publisher of Inside GNSS to produce, publish, and distribute an expanded Show Daily publication at this year’s ION GNSS+ 2014 event taking place September 9–12 in Tampa, Florida. The alliance will leverage the magazine’s many years of publishing expertise to advance the business interests of exhibitors and attendees.
By Inside GNSS
Harbinger Capital Partners, a hedge fund controlled by Phil Falcone that acted as the primary financial backer of LightSquared, is suing the United States government over the failure of the proposed terrestrial broadband wireless network that would have broadcast in RF spectrum adjacent to GNSS L1 frequencies.
By Inside GNSS
A weeklong workshop on GNSS and its scientific applications in low-latitude regions of the world will be held in Trieste, Italy at the Abdus Salam International Centre for Theoretical Physics (ICTP) on December 1-5, 2014.
The five-day event will be held in English. It is sponsored by the United Nations Office for Outer Space Affairs (UNOOSA) and organized by the USA and European Commission through the UN’s International Committee on GNSS (ICG).
By Inside GNSS
San Jose, California–based InvenSense, Inc. announced today (July 7, 2014) that it has signed a definitive agreement to acquire Trusted Positioning Inc. (TPI), a privately-held indoor/outdoor positioning software company based in Calgary, Alberta, Canada, and Movea, a provider of software for low-power location, activity tracking, and context sensing.
By Inside GNSS
