The BeiDou Navigation Satellite System is a global satellite navigation system independently developed and operated by China, following the GPS led by the United States, GLONASS led by Russia, and Galileo led by Europe. In recent years, the BeiDou Navigation Satellite System has attracted global attention with its rapid development speed. Especially with the entry of the Beidou Navigation System into the global networking stage, it is expected that the system construction goal of covering the world will be completed by around 2018, and the huge market prospects are attracting many enterprises to enter the Beidou industry. It can provide high-precision and highly reliable positioning, navigation, and timing services to various users around the world, 24/7, and has short message communication capabilities. It has preliminary regional navigation, positioning, and timing capabilities, with positioning accuracy better than 20m and timing accuracy better than 100ns. With the continuous development and maturity of the Beidou satellite positioning system, Beidou is widely used in tracking and monitoring, combat exercises, military training, navigation scheduling and other occasions.