GPS

CDR Passed: GPS III Ready for Build Phase
August 24, 2010

CDR Passed: GPS III Ready for Build Phase

Artist’s rendering of GPS III satellite. Lockheed Martin image

More than two years into a multi-billion-dollar contract, the Lockheed Martin team developing the U.S. Air Force’s next-generation GPS Block III satellites continues to defy the physics of large aerospace programs by successfully completing the program’s Critical Design Review (CDR) phase last week — two months ahead of the baseline schedule.

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By Inside GNSS
Air Force Approves 3 GPS Technical Specs
August 19, 2010

Air Force Approves 3 GPS Technical Specs

The GPS Wing has authorized publication of three technical documents with updated specifications for the U.S. Global Positioning System, including the next-generation GPS Block IIIA satellites now in development, the L5 radio link, and the new L1 civil signal  (L1C) that will be available with the GPS III spacecraft.

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By Inside GNSS
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GPS IIF-1 Satellite
August 17, 2010

GPS IIF-1 Satellite

FIGURE 1: Geographical overview of the 170 IGS stations tracking SVN62/PRN25 during its current 90-day checkout period. The blue curve illustrates the ground track of the spacecraft on August 9, 2010.

For the complete story, including figures, graphs, and images, please download the PDF of the article, above.

On May 27, 2010, the U.S. Air Force successfully launched the first satellite of the Block II “follow-on” (Block IIF) series, the fourth generation of GPS spacecraft that features more precise and powerful signals, an extended design life, and several other technical advances.

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By Inside GNSS
GPS IIF Satellite Reaches Final Orbital Location
August 10, 2010

GPS IIF Satellite Reaches Final Orbital Location

Officials from the Air Space Space and Missile Systems Center’s GPS Wing announced today (August 10) that the first GPS IIF satellite (SVN-62) arrived on-station August 1. This indicates that the satellite is in its designated orbital position and ready for its final phase of on-orbit checkout and testing, to be completed before September. The satellite will then be cleared to serve navigation and timing users as part of the operational GPS constellation.

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By Inside GNSS
Aldacom Offers GPS/Linux PC/GPRS Breadboard

Aldacom Offers GPS/Linux PC/GPRS Breadboard

Aldacom GmbH, of Neu-Isenburg, Germany, recently announced the debut of the AldaLogic C10/3, a breadboard containing an embedded Linux PC on a surface measuring 104 x 63 millimeters.

The unit also contains a Quad-band GPRS module and SiRF3 GPS module, as well as interfaces for USB, RS232 and Ethernet components. An SD-card reader enables expansion of the standard 4 Mb of flash memory.

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By Inside GNSS
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Firmware Update for NovAtel L1 OEMStar Receiver

Firmware Update for NovAtel L1 OEMStar Receiver

NovAtel Inc. recently announced the release of Version 1.011 firmware for its L1 OEMStar GNSS (GPS+GLONASS+SBAS) receiver, which the company says is designed to provide improved PDP and GL1DE filter performance, improved satellite tracking in low signal level environments, improved satellite-based augmentation system (SBAS) performance when operating outside of the standard grid map, and improved time to first fix.

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By Inside GNSS
Spectracom Launches GSG-54 8-Channel Simulator

Spectracom Launches GSG-54 8-Channel Simulator

Spectracom has introduced a new eight-channel GPS constellation simulator, the Pendulum GSG-54.

Designed to provide a wide-range of capabilities for in-line production testing of devices integrating GPS receivers, according to the company, the simulator features ease-of-operation, fast test cycles, and versatility in supporting the integration of GPS receivers into devices under development. The unit’s bench-top chassis is designed to be compact, portable, and easy to set up.

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By Inside GNSS
faq_michibiki_01.jpg
August 9, 2010

QZSS Satellite ‘Michibiki’ to Launch on September 11

JAXA has announced the launch date for Japan’s first Quasi-Zenith satellite. On the morning of September 11, H-IIA Launch Vehicle No. 18 will carry the satellite, nicknamed Michibiki, to its inclined geosynchronous orbit (IGSO).

The launch was postponed from August 2 because of problems with the onboard reaction wheels. The malfunctioning part was replaced.

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By Inside GNSS
New GPS Module from Sierra Wireless
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
Topcon Releases Software for IP

Topcon Releases Software for IP

Topcon Positioning Systems (TPS) has announced the release of Spatial Factory software.

The software interface allows users to work with the combination of point cloud, trajectory, and panoramic image data that comes from the Topcon IP-S2 3D mobile mapping system.

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By Inside GNSS
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