辅助长码直捕的一个最重要的先验信息是时间信息，卫星信号传播时延估计是减少时域搜索范围的一个重要方面。
Time is important information for fast and direct acquisition of military code, and compression of signal's propagation delay time uncertainty is an effective means for it.
辅助长码直捕的一个最重要的先验信息是时间信息，卫星信号传播时延估计是减少时域搜索范围的一个重要方面。
Time is important information for fast and direct acquisition of military code, and compression of signal's propagation delay time uncertainty is an effective means for it.
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