抑制尺度靶收发换能器边收边发干扰方法

摘要

边收边发技术可以大大地减小转发信号的延时,提高靶标模拟的逼真度.在边收边发过程中,由于发射换能器和接收水听器同时工作,发射换能器转发信号时在发射换能器端面方向存在声串漏,容易给接收水听器造成干扰.为了解决发射换能器和接收水听器干扰的问题,提出了合理设计发射换能器和接收水听器指向性凹点,合理设计靶标换能器阵型结构和采用变门限检测等技术措施.仿真结果表明,提出的措施能够有效解决发射换能器对接收水听器的干扰问题.%Receiving and sending technology can greatly reduce the transmitted signal delay and improve the simulation fidelity of the target.Because the transmitting transducer has acoustic leakage in the lateral direction,it is easy to cause interference between transmitting transducer and receiving hydrophone in the process of receiving and sending.In the paper,the rational design of the transducer directivity concave point,the rational design of transducer array structure and variable threshold detection are proposed.The interference between transmitting transducer and receiving hydrophone is solved by these measures.Simulation results show that the proposed measures can effectively solve the interference problem between the transmitting transducer and the receiving hydrophone.