Compass/Beidou

March 27, 2017

BeiDou Milestones Include Accuracy to Within 1 to 2 Meters

China’s domestically produced satellite navigation system BeiDou has made significant progress in terms of its accuracy, according to reports out of China earlier this month. At a recent press conference, BeiDou engineers claimed that a new accurate positioning chip can now help users arrive at their destinations with an error margin of just one to two meters.

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By Inside GNSS
March 15, 2017

Looking on the Bright Side from the Munich Satellite Navigation Summit

Pierre Delsaux speaks at the Munich Satellite Navigation Summit. Photo: Peter Gutierrez.

The opening plenary of the annual Satellite Navigation Summit in Munich tends to be a ritzy affair, taking place in the evening in an amazing converted chapel and featuring live musical interludes in between groups of speakers. This year the audience was treated to movie tunes, and the European Commission’s Pierre Delsaux had a suggestion for the play list.

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By Inside GNSS
January 24, 2017

State of Play in China

The BeiDou Navigation Satellite System (BDS) is China’s contribution to the world in the domain of Global Satellite Navigation System (GNSS). The BDS is being developed by the Chinese government, mainly through military departments, with key considerations for China’s national security, economic interests and social progress.

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By Ingo Baumann
January 19, 2017

ESA Puts Brave Face on Galileo Clock Failures

Passive hydrogen maser atomic clock of the type flown on Galileo, accurate to one second in three million years. ESA photo

At the traditional January media briefing in Paris yesterday (January 18, 2017), European Space Agency (ESA) General Director Jan Woerner was forthright in laying out the knowns and unknowns about the failed rubidium and hydrogen maser clocks onboard orbiting Galileo satellites, clocks that are absolutely crucial for accurate positioning.

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By Inside GNSS
November 30, 2016

GPS, GLONASS, Galileo, and BeiDou for Mobile Devices

The navigation sensors for location-based services (LBS) are complex technical systems. Modern technical science can answer most questions about the optimality of particular position determination methods, signal processing algorithms, electronic circuits or similar well-defined problems, but the rigorous answer to the questions concerning the optimal LBS positioning sensor are still a big problem.

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By Inside GNSS
June 15, 2016

China Places 23rd BeiDou Satellite into Orbit

A Long March-3C carrier rocket carrying the 23rd satellite in the BeiDou Navigation Satellite System (BDS) lifts off from Xichang Satellite Launch Center on June 12, 2016. (Xinhua photo/Yang Zhiyuan)

China launched another BeiDou satellite on Sunday (June 12, 2016, local time) to support its GNSS constellation.

The satellite, launched from the Xichang Satellite Launch Center in southwest China’s Sichuan Province, was taken into orbit by a Long March-3C carrier rocket. It is the 23rd satellite in the BeiDou Navigation Satellite System (BDS), a new-generation BeiDou-2 spacecraaft, and the seventh geostationary Earth orbit satellite (GEO) in the BeiDou constellation.

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By Inside GNSS
May 26, 2016

2016 ITS & LBS China Expo

A view of the Shenzhen Convention and Exhibition Center

The 5th International Intelligent Transportation System and Location-based Services expo will take place in Shenzhen (深圳), China on June 17, 18 and 19, 2016. It will take place in Hall 9 of the Shenzhen Convention and Exhibition Center in the city center.

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By Inside GNSS
April 5, 2016

China Launches BeiDou IGSO Spacecraft

With little fanfare or prior announcement, China launched another second-generation BeiDou Navigation Satellite System (BDS) satellite last week, the 22nd in the nation’s GNSS program.

The satellite launched from the Xichang Satellite Launch Center in the southwestern province of Sichuan on March 29 local time on board a Long March-3A carrier rocket.

An inclined geosynchronous orbit (IGSO) spacecraft designated Beidou-2 IGSO-6, it is expected to operate at an altitude of about 22,000 miles (35,400 kilometers) with an inclination of about 55 degrees.

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By Inside GNSS