China National Radio (CNR) reported on a recent announcement from the China Satellite Navigation System Management Office, stating that China has developed satellite anti-interference equipment, an “electromagnetic shield,” for its Beidou Satellite Navigation System. The Beidou system is fully capable of covering the Asia-Pacific region.
The Beidou System can be used for both military and civilian purposes. It has a positioning accuracy of 10 meters, a velocity measurement accuracy of 0.2 meters/second, and a timing accuracy of 10 nanoseconds. It is said that the system is equal to the Global Positioning System (GPS) of the United States especially in positioning accuracy in the Asia-Pacific region.
Source: China National Radio, February 4, 2013
http://china.cnr.cn/ygxw/201302/t20130204_511919697.shtml
http://eng.chinamil.com.cn/news-channels/china-military-news/2013-02/05/content_5210150.htm