TAG: BeiDou

China adds 23rd satellite to BeiDou constellation

June 15, 2016By
The 23rd BeiDou satellite lifts off.

The Chinese Beidou system’s 23rd satellite was launched into orbit Sunday aboard a Long March 3C rocket. The Long March 3C rocket lifted off at 1530 GMT (11:30 a.m. EDT) from the Xichang launch base in southwestern China’s Sichuan province, according to the state-run Xinhua news agency. This is the third new satellite to join the fleet this year. The... read more

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Congress yanks OCX funding; Galileo grows

June 3, 2016By
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Congress Yanks OCX Funding SecDef Must Demonstrate Its Essential Nature The U.S. Senate Armed Services Committee withheld the full amount requested by the Pentagon for Fiscal Year (FY) 2017 for OCX, the Next-Generation Operational Control System (ground control) for GPS, heretofore deemed necessary to operate the next generation of satellites, GPS III. The Pentagon had asked for $394 million in... read more

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Kuwait high-rise goes up with assist from BeiDou

May 9, 2016By
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CORS station tracks China’s constellation over three frequencies. Headquarters for the National Bank of Kuwait, a new 300-meter-tall building under construction, combines concrete, steel, glazing and glass-reinforced concrete in a unique shellfish shape. The engineering challenges behind this building led the engineers of Ahmadiah Company, the contractor, to use GNSS technology to install the core wall structure with millimeter accuracy.... read more

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System of Systems: OCX passes first qualification

May 1, 2016By
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OCX Passes First Qualification Raytheon, US Air Force Complete Test Milestone On March 4, Raytheon successfully passed the first formal qualification test milestone for the U.S. Air Force’s GPS Next Generation Operational Control System (GPS OCX). The new system offers significant improvements to the GPS on which the U.S. military and millions of civilians rely, including enhanced availability, accuracy and... read more

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China launches 22nd BeiDou satellite

March 30, 2016By
BeiDou-22-O

China launched the 22nd BeiDou satellite into orbit on Tuesday. BeiDou-22 (or BeiDou-2 I6) was launched at 20:11 UTC (4:11 local time) by a Long March-3A rocket from the Xichang Satellite Launch Center. China launched the 21st BeiDou satellite on Feb. 1, the second in a series of BeiDou launches schedule for 2016. The BeiDou constellation is planned to be completed in... read more

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China launches 21st Beidou navigation satellite

February 1, 2016By
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China has launched its 21st BeiDou satellite into orbit, according to Xinhua News Agency, the official press agency of the People’s Republic of China. The launch took place at 3:29 p.m. Beijing Time (07:29 UTC) on Monday, Feb. 1. Launched from Xichang Satellite Launch Center in the southwestern province of Sichuan, the satellite was boosted by a Long March-3C carrier rocket... read more

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Expert Opinions: How many GNSS signals for a consumer-grade device?

December 23, 2015By
Greg-Turetzky-T

Question: What is the optimum number of GNSS signals to include/process in a consumer-grade PNT device? A: A chip should support four signals, being GPS/GLONASS/Galileo/Beidou, but only process two of them — choice depending on region, geopolitical sensitivity, constellation availability — dropping to one to save power when satellite availability is good. Two constellations give enough satellites for accuracy and... read more

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Directions 2016: A new stage for the development of BeiDou

December 16, 2015By
Shuren Guo, deputy director of China Satellite Navigation Project Center.

In line with its three-step development plan, the BeiDou Navigation Satellite System (BDS) will constitute a complete space constellation by around 2020, when it will be comprised of five geosynchronous orbit (GEO) satellites and 30 non-GEO satellites, providing services for global users. read more

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