Abstract: Basing on the geometry distribution of the bistatic sonar system，and viewing from the signal energy，this paper simulates the signal to noise ratio of the receiving end of bistatic sonar system when the submarine uses anti-jamming for the purpose of acoustic interference.The analysis shows that the bistatic sonar can obtain more detection and anti-interference effects than the traditional monostatic sonar system by using its hidden nature and the flexibility of system configuration.

Key words: bistatic sonar, acoustic countermeasure, anti-jamming

摘要： 在双基地声呐几何模型的基础上，从信号能量的角度，对水下目标利用干扰器进行水声对抗时双基地声呐接收端的信噪比进行了仿真计算，通过分析表明：双基地声呐可以利用自身的隐蔽性以及系统配置的灵活性获得优于传统收发合置声呐的检测以及抗干扰效果。

关键词: 双基地声呐, 水声对抗, 干扰器