The digital active sonar has many advantages, but we have many problems to realize them.
首先介绍数字式主动声呐的优点及实现上的特殊困难.
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Detecting sonar pulse transmitted by an active sonar, it is sonar pulse detection.
声呐脉冲侦察是利用目标主动声呐发射的脉冲信号来探测目标的技术.
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Active SONAR provides signal for enemy when ranging pulse and this is very dangerous for submarine.
被动声纳因隐蔽性好等优点而倍受关注,成为潜艇的主战声纳.
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