Design & Test

Septentrio Demonstrates BeiDou+GPS+GLONASS Positioning

January 9, 2013By
Septentrio_Op

Septentrio announced on January 7 that it has successfully implemented BeiDou support in the company’s high-precision receiver software, taking advantage of the recent official release of BeiDou’s Interface Control Document (ICD) to including the Chinese satellite navigation signals into its position-velocity-time (PVT) solution. According to the Belgian GNSS receiver manufacturer, its engineers “are currently processing further data sets to finalize... read more

JAVAD GNSS Tracks Compass B3 Signals

January 9, 2013By

On December 29, two days after the Compass Interface Control Document (ICD) was made publicly available, JAVAD GNSS announced that it had tracked “B3 signal from all launched Compass satellites, using TRE-G3T-E E6-band capable receiver.  Graphs shows SNR and ‘code-minus-phase’ combination of GEO svn #5 (sat #215 on graph), IGSO svn #8 (sat #218) and MEO svn #14 (sat #224).... read more

This article is tagged with , and posted in Design & Test, GNSS, Latest News, Signal Processing

Galileo E6 Signal Tracking Announced by JAVAD GNSS

January 2, 2013By

An announcement on the JAVAD GNSS website states “On December 21, 2012, we have tracked E6 B/C signal from all launched Galileo satellites, using TRE-G3T-E E6-band capable receiver. “The following graphs shows SNR and ‘code-minus-phase’ combination of svn #11 (sat #81 on graph), svn #12 (sat #82) , svn #19 (sat #89) and svn #20 (sat #90). C/A stands for... read more

This article is tagged with , , and posted in Design & Test, GNSS, Signal Processing

The System: Galileo IOV-3, Russian SBAS, Road Tolling

January 1, 2013By
its_t3_476

Galileo IOV-3 Broadcasts E1, E5, E6 Signals; Russian SBAS Luch-5B in Orbital Slot; EGNOS and Galileo in Emergency Call, Road Tolling; Compass ICD Rumored Galileo IOV-3 Broadcasts E1, E5, E6 Signals By Oliver Montenbruck, German Space Operations Center and Richard B. Langley, University of New Brunswick After reaching its final position, the Galileo IOV-3 satellite started transmitting its first ranging... read more

This article is tagged with and posted in Design & Test, The System

Spectrum Interference Standards: Seeking a Win-Win Rebound from Lose-Lose

January 1, 2013By
IMG00118-20100716-1251

Based upon lessons learned from the LightSquared situation, the author identifies important considerations for GPS spectrum interference standards, recommended by the PNT EXCOM for future commercial proposals in bands adjacent to the RNSS band to avoid interference to GNSS. read more

This article is tagged with , and posted in Design & Test, From the Magazine, Mobile

Innovation: Getting at the Truth

January 1, 2013By
Inn-opener

A Civilian GPS Position Authentication System
When a GPS receiver reports its position to a monitoring center using a radio signal of some kind, how do we know that the receiver or its associated communications unit is telling the truth? It’s not that difficult to generate false position reports and mislead the monitoring center into believing the receiver is located elsewhere — unless an authentication procedure is used. In this month’s column, we look at the development of a clever system that uses the concept of supplicant and authenticator to assess the truthfulness of position reports. read more

This article is tagged with and posted in Algorithms & Methods, Design & Test, From the Magazine, Innovation

Galileo and Compass: A Tale of Also-Runnings

December 19, 2012By

Beating up the backstretch neck and neck, tied for third in the GNSS race, Galileo and Compass today offer some signals and some satellites to GNSS users — as long as those users are researchers. Galileo has more going for it in the way of signals, while Compass holds an edge in the number of satellites. Without an interface control... read more

RITA Seeks Experienced Electronics Engineer

December 17, 2012By

The Research and Innovative Technology Administration (RITA) seeks an experienced Electronics Engineer interested in joining the Office of Positioning, Navigation, and Timing (PNT).  RITA coordinates the U.S. Department of Transportation’s (DOT) research programs and is charged with advancing rigorous analysis and the deployment of cross-cutting technologies to improve our Nation’s transportation system.  RITA serves as the lead Administration representing DOT... read more

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