介绍了一种结构紧凑、体积小、重量轻、能模拟静止或机动声呐目标回波信号与指定海况下海洋环境噪声的声呐信号模拟器。它具有良好的用户界面,可通过键盘与LCD显示板快速准确地输入所有参数和命令,完成指定功能。系统接口特性优良,既可以单独成机,也可与PC/XT/AT及其兼容机和其它声呐系统配接,完成声呐系统的调机和检查测试。 A sonar signal simulator with compact structure, small size and light weight, capable of simulating a stationary or maneuvering sonar target echo signal and a marine environment noise in a given sea state is introduced. It has a good user interface, through the keyboard and LCD display quickly and accurately enter all the parameters and commands to complete the specified function. System interface features excellent, either as a stand-alone machine, but also with PC / XT / AT compatible machines and other sonar systems with the docking system to complete the sonar tuning and inspection tests.