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Inside GNSS: Engineering Solutions from the Global Navigation Satellite System Community
GPS Galileo Glonass BeiDou Regional/Augmentation
Inside Unmanned Systems
Thought Leadership Series
GPS
November 15, 2010 - November 18, 2010
Reston, Virginia USA
Inside GNSS • January/February 2010

GPS EASY Suite II: easy15

A frequently asked question about GPS is: How accurate is a GPS-based position? The experienced GPS user knows that a big difference lies between using pseudoranges alone or combining pseudoranges and carrier phases.

The following analysis is partly based on an idea raised in the book, Global Positioning System: Signals, Measurements, and Performance, by P. Misra and Per Enge (See Additional Resources section at the end of this article).

Inside GNSS • January/February 2010

Modernization Milestone

The New Year’s festivities had ended and satellite operators at the 2d Space Operations Squadron (2 SOPS) at Schriever Air Force Base, Colorado, were hard at work conducting routine operations on the GPS satellites. At around 11:30 in the morning local time (1830 UTC) on January 1, 2004, range errors for space vehicle number (SVN) 23 began to rapidly drift above the 30-meter threshold.

Inside GNSS • January/February 2010

Acoustics & GPS

Modern asymmetric warfare has made the need to limit collateral damage a critical parameter for weapons developers. In recent years this need has led to more accurate weapon types with longer ranges and more sophisticated deployment mechanisms.

January 7, 2010

New Software, Delays for GPS Control Segment, IIF Satellite

The U.S. Air Force GPS Wing and the 50th Space Wing will implement a new ground system software release on January 11 to enable telemetry, tracking, and commanding for the new GPS IIF satellites and provide over-the-air distribution of encryption keys for military user P(Y)-code equipment.

The software will be implemented by the GPS Master Control Center at Schriever AFB, Colorado.

Meanwhile, the schedules for launching the first IIF spacecraft and awarding the prime contract for modernization of the GPS operational control segment (OCX) continue to slip.

New Builds • January 7, 2010

Atheros Introduces New AR1520 OEM GPS Receiver Chip, Software

Atheros Communications, Inc., has announced the latest member of its family of GPS products – its third-generation, single-chip GPS receiver, the AR1520, and companion Atheros FYX 1.0 software suite.

January 25, 2010 - January 26, 2010
Bangkok, Thailand
February 23, 2010
Teddington, London UK
New Builds • January 6, 2010

Navman Launches GPS OEM Jupiter4 module

Navman Wireless OEM Solutions has announced its new Jupiter4 GPS module for OEM applications, built upon the CSR-SiRF Technology SiRFstarIV architecture’s high-performance, low-power capabilities.

May 3, 2010 - May 6, 2010
Indian Wells/Palm Springs, California USA
Signals
Trimble
Trimble
FLIR
Jammer Dectector
Applanix
Sensonor
NexNav
CAST
NovAtel
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