Based on the analysis and study of the primary principle and countermeasure process of the underwater acoustic countermeasure equipments , the mathematical models of the typical underwater acoustic countermeasure equipments such as the wide - band noise jammer target radiation noise simulator echo simulator and the gas bubble are presented 在详细分析、研究水声对抗器材有关基本概念、基本工作原理及对抗过程的基础上，归纳、总结了噪声干扰器、目标辐射噪声模拟器、主动回波模拟器及气幕弹等当前典型水声对抗器材的数学模型。
The main research advances can be summarized as follows : ( 1 ) study the signal processing ' s performances and methods of homing torpedo system comprehensively , in order to setting up a corresponding mathematical models ; ( 2 ) analyze the ocean channel ' s effects on the work of homing system , then found some models such as target echo signal , noise ( including background noise , target radiating noise , etc ) , ocean reverberation . according to them , simulate the array signal ; ( 3 ) the system structure , every function blocks composing are studied and founded thoroughly . then , discuss methods of signal processing in time domain and airspace domain ; ( 4 ) program the simulation software of torpedo ' s homing system according to the simulation models and flow charts , which connected with torpedo ' s control part 本文所作的主要工作及研究成果主要有以下几个方面： ( 1 )对自导工作过程中的信号与信息处理的基本理论与方法进行了较为全面的研究，为建立一个较为完备的自导仿真系统提供了理论基础； ( 2 )讨论了自导系统工作过程中海洋信道对目标回波信号与目标辐射噪声信号等的影响，建立回波信号的数学模型、环境场中的噪声信号模型(包括海洋环境噪声、目标辐射噪声与鱼雷背景噪声等)与海洋混响模型，模拟产生了声自导系统基阵接收到的回波信号与噪声信号； ( 3 )深入研究并建立了自导仿真系统的总体框架，给出各个具体功能模块组成，讨论了声自导系统对信号的时域与空域处理，并结合仿真程序中阵列信号处理模块，给出固定多通道波束形成的仿真实现过程； ( 4 )根据系统的仿真模型与已建立的仿真流程图编制了通用鱼雷模拟器自导系统仿真软件，通过网络与控制系统相连，组成完整的鱼雷模拟器。
