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All Over the World: 2013 GNSS conferences
January 9, 2013

All Over the World: 2013 GNSS conferences

A rainy day in Wuhan, as seen from the Yellow Crane Tower. The city will host the Chinese Satellite Navigation Conference this year.

2013 opens with a new event in Hawaii, a rescheduled Munich Summit, and other familiar technical meetings, workshops, exhibitions, and GNSS-oriented activities.

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By Inside GNSS
Receiver standards? January 22 webinar discusses why, what and how
January 8, 2013

Receiver standards? January 22 webinar discusses why, what and how

Do we need performance specs for GNSS user equipment design? For a long time, the signal-in-space interface guidelines provided enough technical guidance. But times have changed.

Over the past two years, the effort by LightSquared to persuade the FCC to allow it to operate high-powered terrestrial transmitters in frequencies adjacent to GPS focused attention on potential vulnerabilities of GNSS user equipment.

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By Inside GNSS
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Septentrio Tracks BeiDou GNSS Signals Using New ICD

Septentrio Tracks BeiDou GNSS Signals Using New ICD

Figure 2. L1 pseudorange residuals (m) for GPS (L1 C/A, top) and COMPASS (B1-I, bottom) vs. time of day (hour).

Septentrio reported today (January 8, 2013) that the Belgium-headquartered GNSS receiver manufacturer has successfully computed a position/velocity/time (PVT) calculation using BeiDou/Compass satellites in a three-constellation (GPS+GLONASS+BeiDou) solution.

"We are positively surprised of the better than expected performance coming out of what we characterize to be ‘a quite mature constellation,’” Laurent Le Thuaut, Septentrio’s business development manager, told Inside GNSS in an e-mail.

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By Inside GNSS
Trimble Acquires ALK Technologies
January 3, 2013

Trimble Acquires ALK Technologies

Continuing its string of acquisitions in recent years, Trimble announced today (January 3, 2011) that it has acquired ALK Technologies Inc., a privately held Princeton, New Jersey–based company that offers proprietary routing and international map-based solutions for transportation, logistics and mobile workforces.

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By Inside GNSS
ION International Technical Meeting 2013

ION International Technical Meeting 2013

The Institute of Navigation’s 2013 International Technical Meeting will take place January 28, 29 and 30 at the Catamaran Resort Hotel on Mission Bay in San Diego, California.

Stanford’s Sherman Lo will moderate the plenary session, "Exploring the Frontiers of Navigation: Unique and exciting new uses of navigation technologies."

The 120 technical session papers address:

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By Inside GNSS
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Location Privacy Bill Moves to Senate Floor

Location Privacy Bill Moves to Senate Floor

U.S. Capitol photo by DAVID ILIFF. Wikimedia Creative Commons License: CC-BY-SA 3.0

Setting the stage for action in the next Congress, a Senate committee approved privacy legislation last Thursday (December 13, 2012) that would, with some exceptions, require companies using geolocation data for apps and navigation services to get express permission from users before collecting or sharing that information.

The bill not only applies to the apps now commonly found on smart phone and tablets but also specifically to “geolocation information services” and devices that are in or “part of a vehicle.”

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By Inside GNSS
Civil Galileo System Poses New Options for Secure Services

Civil Galileo System Poses New Options for Secure Services

Conceptual design of ULTRA (ultra low-cost PRS receiver)

When European leaders first took up the idea of creating their own GNSS system nearly 20 years ago, they held up the concept of civilian control as a crucial differentiator from existing services operated by national military establishments.

As Galileo nears its operational phase, that principle may manifest itself in a surprising form: the opportunity to offer a range of security-oriented positioning and timing solutions in place of the all-or-nothing alternatives on encrypted services maintained by defense agencies.

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By Inside GNSS
Meet the New European GNSS Agency: Much the Same, Only Different

Meet the New European GNSS Agency: Much the Same, Only Different

Coming nearly full circle and yet ending up in a new place with a new name describes the peculiar fortunes of the European GNSS Agency, an unlikely fate perhaps reflected most clearly in its continued use of its predecessor’s acronym, GSA.

Five years ago when Europe’s GNSS program abandoned its seemingly misconceived and now roundly condemned effort to forge a public-private partnership (PPP) to develop Galileo, the original GSA — the Galileo Supervisory Authority — appeared orphaned, bereft of purpose and patrons.

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By Inside GNSS
Air Force Awards White Sands Contract to Locata
December 11, 2012

Air Force Awards White Sands Contract to Locata

A pair of LocataLite transmit antennas overlook a section of the White Sands Missile Range blanketed by the Locata high-precision ground-based positioning system.

The U.S. Air Force (USAF) has signed a sole-source, 13-year, multimillion-dollar contract with Locata Corporation to install the company’s ground-based LocataNet positioning system at the famed White Sands Missile Range in New Mexico.

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By Inside GNSS
London Conference Beats Drum for Galileo Acceptance

London Conference Beats Drum for Galileo Acceptance

The accompanying figure shows the acquisition results of the FM3 Galileo satellite (PRN 11) E1b data channel, as computed by the NAVigation Signal Analysis and Simulation (NavSAS) group of the Politecnico di Torino/Istituto Superiore Mario Boella (ISMB) in Italy. The upper plot shows the search space along ±7 kHz Doppler frequency, while the lower one shows the search space along 4 millisecond code delay. The coherent integration time used to obtain this search space was 4 milliseconds, coupled with 11 noncoherent accumulations.

The third Galileo in-orbit validation (IOV) satellite, also known as Flight Model 3 (FM), began transmitting signals last week, and the FM4 spacecraft, like the FM3 launched on October 12, is expected to come on-line soon — providing the theoretical capability of 3D positioning using solely satellites of Europe’s GNSS system.

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By Inside GNSS
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