TAG: BeiDou

China launches 21st Beidou navigation satellite

February 1, 2016By
BeiDou-21st-Feb1-16-launch-O

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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Out in Front: GLAC issues BeiDou market projections

December 8, 2015By
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We have grown accustomed to seeing market projections for some GNSS, notably Galileo. European GNSS Agency economists have done a remarkable job analyzing and predicting the global market over the past five years. Business intelligence firms in the U.S. periodically report on the power of GPS driving, or participating in, significant portions of the U.S. economy. Figures from Russia are... read more

System of Systems: New BeiDou TMBOC Signal Tracked

November 11, 2015By

New BeiDou TMBOC Signal Tracked Similar Structure to Future GPS L1C China’s new third-generation BeiDou satellites are broadcasting some new signals in space. The newest signal, which just began broadcasting from a satellite launched on Sept. 30, is similar to the future GPS L1C signal with time-division BOC(1,1) and BOC(6,1) signals. Such a type of modulation is called time-multiplexed binary... read more

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JAVAD GNSS TRE-3 Successfully Tracks First Live TMBOC Signal

October 22, 2015By
JAVAD-TMBOC-O

The newly launched BeiDou Phase 3 satellites have several new signals. One is extremely similar to the future GPS L1C signal with time-division BOC(1,1) and BOC(6,1) signals. Such a type of modulation is called time-multiplexed binary offset carrier (TMBOC). (Read more about TMBOC in the June 2011 Innovation article “MBOC Signal Options: Performance of Multiplexed Binary Offset Carrier Modulations for Modernized... read more

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Newest GNSS Satellites Being Tracked

October 12, 2015By

News courtesy of CANSPACE Listserv. Galileo has added two satellites to its constellation. Shortly after the Galileo satellite using the E24 PRN code started transmitting, its sibling began transmitting using code E30. Several stations participating in the International GNSS Service Multi-GNSS Experiment are tracking the new satellites. Prof. René Warnant from the University of Liege has reported that as of 10 October,... read more

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China Launches 20th BeiDou Satellite with Hydrogen Clock

September 30, 2015By
BeiDou-launch-Sept30-2-O

China launched a new-generation BeiDou satellite into orbit at 7:13 a.m. China Standard Time on Wednesday, Sept. 30, according to the Xinhua News Agency, the 20th satellite for the BeiDou Navigation Satellite System. The satellite was launched from Xichang Satellite Launch Center in the southwestern province of Sichuan aboard a Long March-3B carrier rocket. In a first for BeiDou, the new BeiDou... read more

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