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卫星自主完好性监测(SAIM)技术是地面完好性监测手段的重要技术补充,可以有效缩短告警时间,有助于从根本上提高完好性性能。从SAIM技术出发提出多通道相关峰监测算法,实现多点异步采样,恢复相关峰。通过MATLAB软件仿真验证算法并给出典型异常模型及监测结果,并用普通接收机验证工程可实现性。通过软件仿真和实测结果对比论证了方法的可行性,采用成熟的商业星载接收机进行软件修改有效地降低了卫星完好性接收装置的研发难度。
Satellite Autonomous Integrity Monitoring (SAIM) technology is an important technical supplement to ground integrity monitoring. It can effectively shorten the alarm time and help to improve the integrity performance fundamentally. Based on the SAIM technology, a multi-channel correlation peak monitoring algorithm is proposed to realize multi-point asynchronous sampling and recovery of related peaks. Through the MATLAB software simulation and validation algorithm and gives the typical anomaly model and monitoring results, and the common receiver to verify the project feasibility. The feasibility of the method is demonstrated through the comparison between the software simulation and the measured results. The software modification of the commercial commercial satellite receiver can effectively reduce the difficulty in the development of the satellite intact receiving device.