分析了主被动拖线阵声呐中拖曳平台的螺旋桨噪声和主动发射基阵(拖鱼)流噪声对被动接收基阵的干扰作用,指出在浅海声学环境下,直达波和海底、海面反射波会成为声呐系统的严重干扰。给出了拖曳平台和拖鱼在各种不同深度和缆长的情况下干扰源的入射角。从理论上计算了不同参数下干扰噪声对系统响应的影响,系统仿真结果可为声呐设计者抑制这种干扰提供途径。 The effects of the propeller noise and the noise of the active launch array (dragfish) towing on the passive receiving array are analyzed. It is pointed out that in the shallow-sea acoustic environment, the direct and sub-sea reflection waves Serious interference with the sonar system. The angles of incidence of the interfering sources are given for the towed platform and the towfish at various depths and cable lengths. The influence of interference noise on system response under different parameters is theoretically calculated. The results of system simulation can provide a way for the sonar designers to suppress such interference.