China to Launch Pulse Star Navigation Satellite for Great GPS AccuracyPosted: October 15, 2016
Both US GPS and China’s Beidou Navigation System rely on the accuracy of their clocks for the accuracy of global positioning.
A hydrogen atomic clock is now most accurate due to its high stability, but a pulse star is 10,000 times more stable due to its enormous mass and high spin velocity. The X ray pulse emitted by a pulse star can provide much more accurate time than the hydrogen atomic clock used by GPS and Beidou now.
China is to launch a pulse star navigation satellite next month to greatly enhance the accuracy of the global positioning of its Beidou Navigation System.
It is extremely difficult to master that brand new technology but Chinese scientists are confident that they will be able to do so through the satellite.
Source: mil.huanqiu.com “China to launch pulse star navigation satellite next month to add wings to Beidou Navigation System” (summary by Chan Kai Yee based on the report in Chinese)