The Multi-GNSS Issue and Military Application

One of the hot issues on GNSS might be that China declared to broadcast the signal of the new Global Navigation Satellite System called Beidou-Compass in December 2011. The multi-GNSS systems with the existing GPS and GLONASS consist of more than 100 GNSS satellites and transmit their signals in near future. Many benefits are expected in accuracy, availability, integrity and increasing anti-jam performance. In this presentation, we have mainly investigated the latest issue for multi-GNSS and discussed spectrum analysis as well as the accuracy improvement issue. The use of the modem weapon system based on satellite navigation information was also briefly investigated in warfare.