Global Navigation Satellite Systems Engineering, Policy, and Design
Space 2009 will be held at the Pasadena Convention Center in Pasadena, California from September 14 to 17.
By Inside GNSS
Spirent Communications has launched its GSS6700 Multi-GNSS Constellation Simulator with test test capability GPS, GLONASS, and the planned European Galileo system.
By Inside GNSS
Block IIR Satellite L-Band Transmitter Array of 12 Helical Antennas. Lockheed Martin photo.After GPS Wing engineers and contractors figure out how to solve the elevation-dependent signal anomalies on the latest GPS satellite — Space Vehicle Number 49 (SVN49), they may want to take a look at another nine Block IIR and IIR-M spacecraft that European scientists say exhibit similar, but less severe, behavior.
In an article that will appear in the July/August issue of Inside GNSS, Tim Springer and Florian Dilssner, GNSS engineers in the Navigation Support Office of the European Space Operations Center (ESOC), described the effects of the anomaly as well as the U.S. Air Force’s initial attempts to solve the problem by altering the broadcast satellite orbital positions and time. A version of the article was posted June 25 on the magazine’s website.
By Inside GNSS
Comments submitted to the Office of the U.S. Trade Representative (USTR) suggest that the Galileo program is finally nearing a decision on commercial use of specifications for its Open Service (OS), but U.S. officials remain concerned that this nation’s equipment manufacturers not be placed at a competitive disadvantage. Meanwhile, Galileo simulators appear to finally be reaching receiver manufacturers, despite the absence of official approval.
By Inside GNSS
UK electronics design and manufacturer Racelogic has released new scenario-generation software, SatGen, intended to simplify creating custom scenarios for the company’s LabSat GPS Simulator.
According to Racelogic, the software can simulate user-defined dynamic GPS scenarios from scratch anywhere in the world.
By Inside GNSS
Iridium Satellite LLC (Iridium) and Boeing have achieved two major milestones to further develop and demonstrate capability enhancements to the High Integrity Global Positioning System (iGPS) program for the U.S. Naval Research Laboratory.
By Inside GNSS
GPS Networking, Inc., a provider of GPS/GNSS signal distribution equipment and accessories since 1999, is moving effective July 15.
The company is remaining in Pueblo, Colorado, and moving into a larger facility at 3915A Outlook Blvd, Pueblo CO 81008.
GPS Networking’s phone number (1-800-463-3063/1-719-595-9880), fax number (719-595-9890) and website address <www.gpsnetworking.com> will also remain the same.
By Inside GNSS
Paper abstracts are due on July 31, 2009 for the GNC Challenges for Miniature Autonomous Systems Workshop that will be held October 26-28 at the Emerald Coast Conference Center in Fort Walton Beach, Florida, USA.
It is sponsored by the Air Force Research Lab (RL) Munitions Directorate and organized by the Institute of Navigation.
Submit your abstract at the website below.
By Inside GNSS
Chronos Technology, of Lydbrook, Gloucstershire, United Kingdom, has introduced its CTL3500 Interference Monitor, a low-cost, handheld, battery-operated device designed to detect the presence of too much GPS power or non-GPS signals and interference broadcasting on the L1 channel.
By Inside GNSS
GPS Networking, of Pueblo, Colorado, has launched the VGLCDLA30RPDC, a variable gain GPS in-line amplifier with LCD display and push button control.
Featuring a range of 0–30 dB, the VGLCDLA30RPDC’s push button control can increase or decrease gain in increments of 1 dB, enabling operators to make precise adjustments quickly and view the output power at any given time for more efficient testing.
The unit operates on 110VAC or 220 VAC transformer (wall mount) and 240 VAC (United Kingdom). Connector options include types N, SMA, TNC, and BNC.
By Inside GNSS
Stallion Range Center, White Sands Missile Range, New Mexico, site of JAMFEST exercisesThe 746th Test Squadron (746 TS) will offer authorized GPS users another in its series of JAMFEST training scenarios November 2–6 at at White Sands Missile Range, New Mexico.
Introduced in May 2004, JAMFEST provides a realistic GPS jamming environment for testing GPS-based navigation systems. Since its inception, JAMFEST has hosted a diverse customer base, including multi-service Department of Defense (DoD) groups, defense contractors, and civil organizations with objectives ranging from training personnel in GPS-denied or –degraded conditions to characterizing the performance of prototype advanced anti-jam technologies against operationally realistic threats.
By Inside GNSS
Pendulum Instruments, Stockholm, Sweden, has introduced four new options for the company’s GPS-12 Portable Frequency Standard family.
First released in 2006, the GPS-12R, a portable GPS controlled rubidium Frequency Standard with battery backup power, supplies a variety of standard frequencies for general metrology (1, 5, and 10 MHz), base station test (13 MHz) and telecom (E1/T1 clock/data).
By Inside GNSS
The Radio Technical Commission for Maritime Services (RTCM) has completed a revision (Version 2.0) of its standard for Networked Transport of RTCM via Internet Protocol (Ntrip).
Designated as RTCM Standard 10410.1, Among other things, the new standard defined by RTCM’s Special Committee 104 (SC104) provides a protocol for streaming differential correction data or other kinds of Global Navigation Satellite System (GNSS) data to stationary or mobile users over the Internet.
By Inside GNSS
