GPS News


Nov 2010 | No Comment


Air Force rebuts auditor’s concerns about GPS

A report from the Government Accountability Office, the investigative arm of Congress, said the latest GPS satellite was launched almost 3½ years behind schedule, and further delays could leave the system with fewer than the 24 orbiting satellites it needs as older models wear out and stop working. Col. David Buckman of the Air Force Space Command at Peterson Air Force Base said the report’s facts were correct, but “we think it draws overly pessimistic conclusions based on those facts.” Buckman said satellites currently in the design or construction phase are on schedule, and the Air Force has 31 healthy, operational satellites in orbit.

CellGuide introduces HiMap

CellGuide HiMap technology for precision urban positioning now commercially available for CellGuide’s ACLYS chip, ACLYS IP Core, and GPSense engine. It is also available for licensing as an add-on to GNSS receiver manufacturers. HiMap improves GNSS navigation performance in urban canyons.

GPS chips in rhino horns

South African rangers plan to implant GPS devices in the horns of rhinos in a new effort to combat rampant poaching. The GPS chips link up to a computer monitoring station where park rangers track the rhinos. An alarm signal activates if the rhino lies inert for longer than is deemed normal, or becomes unusually active.

MICHIBIKI transmits L1-SAIF signal

JAXA has been conducting the initial functional verification of “MICHIBIKI,” including its attitude control and communications systems, and satellite bus. The functions of the attitude control and communications systems have been confirmed. Transmission of one of the positioning signals, namely the L1-SAIF signal (*1) from the L1-SAIF antenna (*2) of the MICHIBIKI started after turning on the onboard positioning mission devices. During the verification Non Standard Code (NSC) is being used.

Broadcom supports QZSS

Broadcom’s single-chip GPS solution for mobile devices supports the new Quasi-Zenith Satellite System by Japan. The BCM4751 solution has built-in support for QZSS and also supports additional satellite constellations including the SBAS making as many as nine additional satellites available for use in navigation.

Rockwell Collins completes Formal Qualification Testing

Rockwell Collins has completed two milestones in the Modernized User Equipment (MUE) receiver development program. It completed Ground-Based GPS Receiver Application Module-Military-code (GB-GRAM-M) receiver formal qualification testing and delivered receiver cards to support Air Force GPS Wing developmental testing. It has also acquired and maintained track of the M-code signal being broadcast from the first GPS Block IIF series satellite in orbit using the GB-GRAM-M receiver.

North Korea jamming GPS signals: South Korea

North Korea’s ability to jam GPS signals presents a new threat, one that Seoul is working to deal with, according to Kim Tae-young, Defense Minister, South Korea. “We have an intelligence report that says North Korea can jam GPS signals within 50- 100kilometer radius,” the minister said.

Sokkia releases the new data collectors

Sokkia has added two new models – the SHC25 and SHC25A – to its data collector lineup. Each model integrates the 20-channel L1 GPS receiver that provides point positioning accuracy of 5 meters and DGPS accuracy of 1 to 3 meters using SBAS signals.

Compass/Beidou-2 Signal products

OlinkStar Co. Ltd. has moved into the marketplace with a line of GNSS products that can use signals currently being transmitted by some of the five Beidou-2 satellites already on orbit.

51% control of Glonass by Sistema

Sistema plans to acquire 51% of Navigation Information Systems, operator of Glonass, for as much as $16 million from its units OAO Sitronics and OAO Concern RTI Systems by the end of the year, the company said. “The development of the Glonass project and the commercialization of its services are among the top state priorities,” the company said.

Raytheon completes GPS OCX Integrated Baseline Review

Raytheon team, developing the next-generation GPS Advanced Control Segment (OCX) successfully completed on schedule an integrated baseline review with the U.S. Air Force. The contract represents the first two development blocks of the advanced control segment, which will have a significant impact on GPS capabilities. The OCX system will include anti-jam capabilities and improved security, accuracy and reliability and will be based on a modern service-oriented architecture to integrate government and industry open-system standards.

SPACEBEL will help Europe navigate

Spacebel has been selected by OHBSystem AG in Germany, the prime contractor for the first 14 satellites of the Galileo constellation, to develop the on board standard services that support the
ground operations.

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