Roads and Highways

January 30, 2011

GPS/ GNSS Community Feels New Telecom Interference Threat from LightSquared

In his State of the Union address on January 25, President Obama held up the Global Positioning System as a prime example of government providing “cutting-edge scientists and inventors with the support that they need” to create world-leading, job-creating innovation.

The following day, the Federal Communications Commission (FCC) International Bureau approved a conditional waiver allowing LightSquared Subsidiary LLC to build tens of thousands of terrestrial transmitters for wireless communications in frequencies on either side of the GPS L1 band.

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By Inside GNSS
December 22, 2010

GMV Will Launch Fully Hosted Software GPS Receiver at Mobile World Congress

GMV will launch the SRX-10, a software GPS receiver for mass-market applications, at this year’s GSMA Mobile World Congress, scheduled February 14–17 in Barcelona, Spain.

As a fully hosted solution, all SRX-10 receiver functions — even signal acquisition and tracking — can be hosted on a general purpose CPU with only the requirement of adding on a low cost RF front-end, according to the company.
The company cites other benefits offered by its new software receiver, particularly its substantial flexibility and upgradeability.

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By Inside GNSS
December 2, 2010

Frank Czopek

Frank & Jeanine at the Wild Animal Park

SIDEBAR: Frank Czopek’s Compass Points

Frank Czopek and his brothers used to go to the 1970s Detroit version of Craigslist — Trading Times — to buy two or three non-functioning Chevrolet Corvairs (air-cooled rear engine-mounted) cars, at $25 apiece.

They hoped to turn the junkers into a single functioning automobile over a weekend. Unfortunately, the results did not last long; so, the process was repeated often. But they sure had fun!

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By Inside GNSS
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November 30, 2010

United States Appeals Courts Disagree on GPS Technology and Privacy Rights

District of Columbia Court of Appeals in Washington D.C., USA

Secret tracking using GPS may be simple, undetectable and cheap — but appeals courts can’t decide if it’s constitutional.

In 1791, when the Fourth Amendment to the United States Constitution was ratified, it certainly seemed specific enough for the needs of the time. The new Americans were tired of colonial powers freely searching and seizing, with general warrants that were as full of holes as Swiss cheese.

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By Inside GNSS
September 7, 2010

NaviForum Shanghai 2010

A close brush by a passing typhoon on its opening day aside, NaviForum Shanghai 2010 mustered an impressive slate of senior executives from Chinese companies working in the navigation and telematics/location based services (LBS) field.

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By Inside GNSS
August 27, 2010

The Missing ICD

Successful launch of three Compass (Beidou-2) satellites so far this year and reports of another two planned later in 2010 have elevated awareness of China’s accelerating GNSS program.

Added to the two spacecraft placed in orbit in 2007 and 2009, that would bring the modernized Beidou constellation up to seven — halfway to the 13 or 14 satellites planned for the regional system scheduled to be available by 2012.

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By Inside GNSS
August 2, 2010

New GPS Module from Sierra Wireless

Sierra Wireless, headquartered in Richmond, British Columbia, Canada, has announced the availability of a new GPS module and supporting software, optimized for wireless applications based on Sierra Wireless AirPrime Intelligent Embedded Modules.

The new AirPrime XM0110 GPS Module is based on integrated SiRFstarIV GPS technology from CSR plc, and an OEM design optimized for wireless asset tracking and automotive applications.

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By Inside GNSS
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April 22, 2010

Farshid Alizadeh-Shabdiz

Farshid Alizadeh-Shabdiz is the chief scientist at Skyhook Wireless Inc. responsible for the research and development of Skyhook’s positioning technology.

He has more than 17 years of industrial experience in the design and implementation of satellite and wireless networks.

Before joining Skyhook Wireless, he was the head of the communications section of Advanced Solutions Group (part of Cross Country Automotive Services). Earlier, he worked at Hughes Network Systems.

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By Inside GNSS
February 15, 2010

Taking Positioning Indoors

Wireless local area networks (WLANs), popularly known as Wi-Fi, were originally designed for data applications. Over the past decade or so, WLAN infrastructure has been implemented for high-speed wireless Internet access in homes, “hot-spots,” university campuses, and corporate buildings. Hundreds of millions of Wi-Fi access points (APs) are deployed in major urban areas worldwide.

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December 24, 2009

Application Notes

GPS, Glonass, Galileo Receiver Testing Using a GNSS Signal Simulator

This application note explains how to perform automated receiver tests using the R&S SMBV100A. The presented tests include TTFF, sensitivity and location accuracy measurements, moving receiver and interference tests, and many more. Basic remote control examples are provided for the individual tests to ease programming.

» White Paper PDF

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By Inside GNSS
December 7, 2009

DARPA Network Challenge Abandons GPS for the Power of Social Networking

Want to win $40k? DARPA gives you one day to locate 10 of these 8-foot weather balloons moored across the USA

(Updated December 7, 2009) A Massachusetts Institute of Technology team won the DARPA Network Challenge on Saturday, December 5. They took home a $40,000 cash prize from the Defense Advanced Research Projects Agency.

The team successfully located 10 eight-foot diameter, bright red weather balloons moored in plain site at locations across the United States.

Apparently, the DARPA personnel in charge were sensitive to frigid winter weather in the heartland –  most of the balloons turned out to be moored in pleasant places for an outdoor December search: Portland, Oregon; San Francisco and Santa Barbara, California; Scottsdale, Arizona; Katy, Texas; Memphis, Tennessee; Atlanta, Georgia; Miami, Florida; Charlottesville, Virginia; and Christiana, Delaware.

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By Inside GNSS
December 2, 2009

Trimble Dimensions China User Conference 2009

Trimble will hold its first user conference in China on December 15-17 at the Jiuhua Resort and Conference Center in Beijing. It will cover civilian technology only.

The theme "Exploration Has No Boundaries," draws comparisons between 15th century navigator Zhenghe, the 2008 space mission Shenqui, and the use of positioning technology to steer exploration.

Trimble head Steve Bergland will deliver one of the conference keynotes.

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By Inside GNSS
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