BeiDou/Compass

BeiDou ICD Released

January 2, 2013By

News compiled with assistance of CANSPACE Listserv.   The interface control document (ICD) describing the details of the BeiDou B1I open service signal on 1561.098 MHz was released December 27 at a news conference held in Beijing by the Chinese State Council Information Office. Download the English version here. The ICD specifies the relations of the signal in space interface... read more

This article is tagged with and posted in BeiDou/Compass, GNSS News, Latest News

Galileo and Compass: A Tale of Also-Runnings

December 19, 2012By

Beating up the backstretch neck and neck, tied for third in the GNSS race, Galileo and Compass today offer some signals and some satellites to GNSS users — as long as those users are researchers. Galileo has more going for it in the way of signals, while Compass holds an edge in the number of satellites. Without an interface control... read more

Compass ICD Rumored Again

December 18, 2012By

A GNSS industry representative stationed in Shanghai, China sent this message recently to a U.S. colleague: “Latest unofficial news said that the Compass Interface Control Document (ICD) will be released on 27th this month,  and will be available on the internet on 28th.” Such rumors have floated before, in late 2010, and again in late 2011.  As the U.S. colleague... read more

This article is tagged with , and posted in BeiDou/Compass, GNSS, GNSS News, Government, Government News

BeiDou-2/Compass G3 Satellite Moved

November 28, 2012By

News courtesy of CANSPACE listerv. The BeiDou-2/Compass geostationary satellite, G3, was moved between about November 7 and 22 from an orbital longitude of  84 degrees east to 110.5 degrees east. The 110.5 degree east longitude slot had been previously used by BeiDou 1C, one of the demonstration or BeiDou-1 satellites, which was initially shifted to about 85 degrees east between... read more

This article is tagged with and posted in BeiDou/Compass, GNSS News, Latest News

What Is Achievable with the Current Compass Constellation?

November 1, 2012By
001_GPS_November12_web

Data from a tracking network with 12 stations in China, the Pacific region, Europe, and Africa demonstrates the capacity of Compass with a constellation comprising four geostationary Earth-orbit (GEO) satellites and five inclined geosynchronous orbit (IGSO) satellites in operation. The regional system will be completed around the end of 2012 with a constellation of five GEOs, five IGSOs, and four... read more

This article is tagged with , and posted in BeiDou/Compass, GNSS, Receiver Design

EU to Meet with China on Nav Dispute

October 11, 2012By

The European Union (EU) and China will be meeting in December in Paris to discuss overlapping radio frequencies both plan to use for their future encrypted government/military satellite navigation services, according to a joint statement from both parties, reports Space News. The December meeting will be conducted under what the Joint Statement on Space Technology Cooperation specifies as the ITU... read more

This article is tagged with and posted in BeiDou/Compass, Galileo, GNSS News

New BeiDou-2/Compass Satellites Begin Transmissions

October 1, 2012By

News courtesy of CANSPACE Listserv.   The two BeiDou-2/Compass satellites launched on 18 September are now  in their circular medium Earth orbits and have started transmitting navigation signals. Several stations participating in the International GNSS Service’s Multi-GNSS Experiment as well as some in the Cooperative Network for GNSS Observation started tracking the satellites on 26 September. From NORAD/JSpOC, we have... read more

This article is tagged with and posted in BeiDou/Compass, GNSS News

The System: OCX, GPS III Show Launch Readiness

October 1, 2012By
GPS III SATELLITE, artist’s rendering, courtesy Lockheed Martin.

Raytheon Company and Lockheed Martin successfully completed the first launch readiness exercise for the U.S. Air Force’s next-generation GPS III satellites. The exercise is a key milestone demonstrating the team remains on schedule to achieve launch availability in 2014, the companies said. The Lockheed Martin-built GPS III satellites and the Raytheon-developed next generation GPS operational control system, known as OCX,... read more

This article is tagged with and posted in Augmentation & Assistance, BeiDou/Compass, Galileo, GNSS, GPS Modernization, OEM, The System