高质量民用卫星导航信号模拟技术

High Quality Civil Satellite Navigation Signal Modeling Technology

高质量民用卫星导航信号生成技术是导航卫星信号产生器研发时需要解决的一项关键技术。对接收机采集的产生器信号进行数据分析,可以发现真实可见星的筛选和带宽范围内的信号平坦度是制约信号质量的工程限制因素。针对该问题,研究了可见星筛选算法与滤波器优化设计方案,提出的方法能够为设计和实现导航卫星信号产生器提供一定的理论参考。

High quality civil satellite navigation signal generation technology is one of main problems which should be solved during developing navigation satellite signal generator. In the signal analysis of GNSS receiver test, selecting visible satellites and inband spectrum ripple should be considered during engineering realization. To solve the problems, visible satellite selection algorithm and method to optimum design filter are provided. The engineering implementation method is presented, which can provide some theoretical references for navigation satellite signal generator design and implementation.