Multi - channel underwater acoustic signal preprocessing is the essential part of the sorna signal processing , especially in a low snr 对被动声纳接收的噪声信号的特性进行了分析，利用子波方法对水声信号处理进行了仿真。
In view of the signal micro - structure knowledge , more attention is paid on analyzing the time - frequency and distribution characteristics of underwater acoustic signals 基于信号微结构知识，分析了水声信号的时-频特性和分布特性。
These problems . including the large escalations in torpedo homing and the real time of the algrithm of underwater acoustic signal processing , are sieved in this thesis 本论文解决了鱼雷自导中大运算量及水声信号处理算法的实时处理问题。
Broadband array signal processing is a main direction of underwater acoustic signal processing , but the broadband signal processing is more complex than that of narrowband 宽带阵列信号处理是水声信号处理的一个主要研究方向，但是宽带水声信号的处理远比窄带信号复杂的多。
Finally the author points out the difficulties existing in practical applications , research directions and the development trend of robust signal detection in the future 最后指出在水声信号检测方面robust检测器所存在的问题，下一步研究的方向以及未来robust检测器的发展趋势。
Therefore applying the nonlinear signal processing to the underwater acoustic to study the target ' s nonlinear properties is a way of modern underwater acoustic processing 因此将非线性分析方法应用于水声信号处理，描述目标信号的非线性特征已成为现代水声信号处理的一个发展方向。
Finally , the study gives itself plan about information fusion of position system and underwater signal , tallying the measured data of time , position and depth with ground mark 最后，对定位系统与水声信号之间的信息融合问题给出了自己的方案，使得时间、方位、深度的测试数据与地面标记有良好的吻合。
In this dissertation focuses are placed on the design of dsp ( digital signal processor ) system which is applied for underwater acoustic signal processing - digital multibeamforming array processing system 本文对应用于水声信号处理中的dsp系统? ?多波束阵列处理器系统的设计和研制进行了初步的探讨和研究。
It is more and more imminently pressive for the speed of data processing in underwater acoustic digital signal processing . now real - time digital signal processing has been an important part of sonar system 在水声信号处理中，对数据处理速度的要求越来越迫切，实时数字信号处理已经成为声呐系统中的重要组成部分。
Reeenly , with the development of underwater acoustic technology , matched field processing tecboques have been widely used in source localization and become one of the most boortan methods of acoustical signal processing 近年来，随着水声技术的不断发展，匹配场处理技术在声源定位中得到了广泛应用，已经成为水声信号处理的重要手段之一。
