In usual spatial-time processing for diversity reception of UWB pulses, the channel delays are not easy to be implemented accurately.

在UW B脉冲信号的角度分集接收中，通常的空时处理中通道时延不易精确地控制。

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During trajectory-tracking photographic measurement, on occasion comes forth the problem that the tracking stations time is asynchronous, so the data cant be put into usual processing.

弹道摄影测量中，有时出现两个观测站的测量数据时间不同步的现象，此时数据不能用于正常处理。

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