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March 15, 2011

Lockheed's GPS III Team completes Key Flight Software Milestone

Lockheed Martin announced today (March 15, 2011) that the team it leads in developing the U.S. Air Force’s next-generation GPS III satellites has successfully completed the program’s first major flight-software integration milestone at the company’s software integration laboratory in Newtown, Pennsylvania.

March 14, 2011

Japan Researchers Use GPS Permanent Array to Find Large Position Shifts From Devastating Earthquake

Based on data from Japan’s GPS Earth Observation Network System (GEONET), researchers at the Geospatial Information Authority of Japan (GSI) reported today (March 14, 2011)  that the 9.0 magnitude Tohoku earthquake on March 11 in northeast Japan caused an estimated displacement of between roughly 6 and 28 meters along two fault blocks totaling nearly 400 kilometers (248 miles).

Inside GNSS • March/April 2011

The Civilian Battlefield

For the complete story, including figures, graphs, and images, please download the PDF of the article, above.

Growing dependence on GNSS for positioning, navigation, and timing (PNT) has raised a parallel concern about the potential risks of signal interference. The popular press has recently highlighted accounts of car thieves using GPS jammers, solar flares pumping out L-band radiation, and faulty television sets causing havoc to GPS receivers across an entire harbor.

Inside GNSS • March/April 2011

GPS Community Confronts LightSquared Move into L1 Spectrum

The GPS community is seething over a January 26 decision by the Federal Communications Commission (FCC) giving a conditional go ahead to a new broadband network with the potential to overwhelm GPS receivers across the country.

September 5, 2011 - September 9, 2011
Tokyo, Japan
March 12, 2011

Registration opens for 2011 GPS Partnership Council Meeting at Los Angeles AFB

Registration is now open for the 2011 GPS Partnership Council meeting on Tuesday, May 3 and Wednesday, May 4 at the Space and Missile Systems Center (SMC) at Los Angeles Air Force Base in El Segundo, California. 

These military and industry networking meetings, now in their 11th year, are sponsored by the Los Angeles chapter of AFCEA (Armed Forces Communications Electronics Association) and the USAF GPS Directorate, formerly the GPS Wing. 

March 15, 2011 - March 17, 2011
Barcelona, Spain
March 10, 2011

"Save Our GPS" Group Forms to Confront LightSquared Transmitter Network

Aroused by the Federal Communication Commission’s (FCC’s) waiver of limits on ancillary terrestrial components (ATCs) for LightSquared’s proposed 40,000-transmitter network, representatives from a wide variety of industries and companies announced today (March 10, 2011) formation of the “Coalition to Save Our GPS.”

March 2, 2011

Beihang Authors Suggest TMBOC Design for China's Compass B1 Civil Signal

Despite the fact that China's rapidly developing global navigation satellite system now has seven spacecraft in orbit intermittently broadcasting test signals, it is the only GNSS provider that has not yet published a draft version of its interface control document (ICD), although one has reportedly been completed for more than a year.

Against that background, any new source of information about the directions of the Compass design — official, semi-official, or other — draws special attention.

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