引言一般来讲,水声最重要的军事用途是在经费和技术条件许可的情况下,在尽可能远的距离内探测潜艇。现在,利用目标的辐射噪声进行探测的被动声纳,探测距离可达几百海里;利用目标回声进行探测的主动声纳,探测距离可达几十海里。这些量级的探测距离要求采用当前最高水平的信号处理、基阵设计和显示技术。 Introduction In general, the most important military use of underwater sound is the detection of submarines as far as possible, subject to funding and technical conditions. At present, the passive sonar that uses the target’s radiated noise to detect is up to hundreds of nautical miles. The active sonar that uses the target echo to detect can reach several tens of nautical miles. These magnitudes of detection range require the highest level of signal processing, array design and display technology available today.