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March 23, 2009

GPS, GLONASS, Galileo, Compass: What GNSS Race? What Competition

(This story appears in the "GNSS World" department in the March-April 2009 issue of Inside GNSS.)

Munich’s high-level satnav summit the first week in March opened with a plenary titled, “The Worldwide Race in GNSS” and closed with a panel, “The Competition among the Big Four.”

Ventures • March 19, 2009

Hemisphere GPS Reports Record Revenues

Hemisphere GPS has reported a 35 percent increase in revenues in 2008 — to a company record of US$72.7 million, versus $53.7 million the previous year. According to the company, 2008 growth was driven by strong market fundamentals in agriculture, including higher farm incomes.

March 18, 2009

More Problems with GPS IIF; IIR-(20)M Is L5’s Plan B

Just when you thought it was safe to go back in the water . . .

Discovery of a power anomaly in signal generator of the first GPS Block IIF space vehicle (SV) has thrown a new wrinkle into the long-delayed follow-on generation of spacecraft.

Meanwhile, it’s all systems go (and all fingers crossed) for launch of a modernized Block IIR satellite IIR-20(M) with the demonstration L5 navigation payload designed to secure priority GPS access to the frequency.

July 18, 2010 - July 21, 2010
Denver, Colorado USA
March 12, 2009

Broadcom, SiRF Top GPS IC Vendor Ranking

A sophisticated vendor matrix that measures qualitative as well as quantitative factors ranks Broadcom as the leading supplier of GPS chips worldwide.

SiRF Technology and Texas Instruments came in second and third in the GPS Integrated Circuit Manufacturer Vendor Matrix, developed by ABI Research based in Oyster Bay, New York, with results announced today (March 12, 2009).

March 6, 2009

Munich Summit Highlights Satellite Navigation Plans, GNSS Program Struggles

Highlights of the 2009 Munich Satellite Navigation Summit (March 3- 5):
Russia will place its first CDMA signal on the GLONASS L3 frequency that overlaps the European Galileo E5b spectrum; China plans to launch three Compass satellites this year and seven more next year to provide a regional capability for Compass/Beidou, followed by completion of the full 30-MEO, 5-GEO constellation after 2015 and before 2020; Galileo program discussions revealed tensions around negotiations with China about a frequency overlay of Compass signals on the security-oriented Public Regulated Service as well as the question of whether the costs to build Galileo can be kept within the €3.4-billion limit agreed by the European Council and the European Parliament; the GPS Block IIR-20(M) satellite with an L5 demonstration payload will be launched later this month in what may be the program's last chance to secure primary GPS access to the frequency.

Inside GNSS • March/April 2009

The GPS EASY Suite II: A Matlab Companion

In 2003 I published a paper called “The GPS EASY Suite — Matlab Code for the GPS Newcomer.” The paper consisted of 10 parts, which are cited in the accompanying sidebar, “EASY Suite I Topics.” Each installment included a printed text and a file of related Matlab code or scripts (an M-file) that could be downloaded from a designated web site.

Inside GNSS • March/April 2009

A Multi-Antenna Defense: Receiver-Autonomous GPS Spoofing Detection

The issue of intentional or inadvertent interference to GNSS signals is a matter of growing concern throughout the world.

In a study released the day before the terrorist attacks on the Pentagon and the New York World Trade Center in September 2001, the U.S. Department of Transportation assessed the national transportation infrastructure’s vulnerability to civil GPS disruption.

March 4, 2009

FY 2010 Budget Outline Proposes to End Loran

Ready for another round?

President Obama appears to have weighed in on the long-running Loran/eLoran debate — on the side of terminating the terrestrial radionavigation system and, apparently, its enhanced version that had been proposed as a backup to GPS.

In a February 26 message to U.S. Coast Guard (USCG) members, Vice-Admiral V. S. Crea, USCG Vice Commandant and Chief Operating Officer, said the Fiscal Year 2010 (FY10) budget outlined in a document sent to Congress calls for termination of Loran-C in the coming year.

February 26, 2009

Federal Commission Backs Mileage Fees over Gas Taxes, Champions GPS Technology

Maybe it was just poor timing.

U.S. Transportation Secretary Ray LaHood’s passing comment that systems for assessing fees based on vehicle miles traveled (VMT) rather than gasoline taxes was quickly shot down by White House press secretary Robert Gibbs in a February 20 news conference.

On February 26, however, the congressionally mandated National Surface Transportation Infrastructure Financing Commission (NSTIFC) came out with a recommendation the United States should do exactly that — and pointed firmly to GNSS systems as a key enabling technology for accomplishing such a transition.

Jammer Dectector
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