基于改进AIS系统的卫星接收机船舶检测率

Satellite-based detection for improved scheme of AIS

为解决卫星接收AIS信号时存在多用户时隙冲突、信号传输过程中时延等问题,针对新的AIS方案,给出卫星接收机船舶正确检测率比较分析结果,同时,给出A类和B类混合分布以及不同海域下A类船舶的正确检测率.该新方案可以提高卫星接收机的船舶检测率.

Satellite-based AIS receiver is developed to achieve global maritime surveillance via satellite receiver. In order to solve problems of delay and slot collision in satellite-based AIS receiver, this paper gives experimental results of correct detec- tion rate for an improved scheme of AIS. Meamwhile, the correct detection rates of Class A in various modes for improved scheme are also given. The proposed scheme can improve the correct de- tection rate of the satellite-based AIS receiver.