一种BD2卫星导航信号的捕获方法

摘要

针对传统捕获方法无法应用于中国北斗二代的新型无源导航信号，在 GPS卫星信号捕获方法的基础上，提出一种BD2卫星信号捕获方法，消除了数据位跳变或N H 码翻转导致的相关值变化，提高了BD2卫星信号的捕获效率。测试结果表明，该方法能够有效地实现BD2卫星信号的捕获。%The traditional acquisition methods can not be applied to the BD2 new passive navigation signal,an acquisition method of BD2 satellite signal is proposed based on the GPS satellite signal acquisition,the correlation value offset brought by the data bit transition or NH code turn can be eliminated and BD2 satellite signal acquisition efficiency can be improved. The test results show that the proposed method can effectively realize BD2 satellite signal acquisition.