In processing of array signal, Direction of Arrival (DOA) of target can be obtained by extracting spatial frequency of echo.
在阵列信号处理中，提取回波信号中的空间频率，可以得到目标的方位信息。
Using the time-gain compensation and peak time detecting technique, the arrival time of ultrasonic echo can be correctly detected.
采用了时间增益补偿技术和峰值时间检测技术，可正确检测超声波回波的到达时间。
The contrastive experiment of back-scattering echo and beacon angle-of-arrival fluctuation was introduced.
介绍了后向散射回波与信标光到达角起伏的原理性比对实验。
The contrastive experiment of back-scattering echo and beacon angle-of-arrival fluctuation was introduced.
介绍了后向散射回波与信标光到达角起伏的原理性比对实验。
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