一种水声信号的模拟研究和检测

为了实现对水下目标的定位，提出一种CW信号与LFM信号组合的水声信号机制，并完成了模拟检测。该信号机制中CW信号用于测距，LFM信号用于测深。一组帧信号与三组行信号组合，共同完成目标定位，并且有效减小误差。仿真结果表明，该信号机制在水声信道中能有效的传输，被检测及实现定位要求。

A simulation of underwater acoustic signal and detection

In order to locate the goal underwater, we propose a underwater acoustic signal mechanism combined CW signal and LFM signal, and complete a simulated test. In the signal mechanism CW signals is used for the ranging , LFM signal for sounding. Frame signal combined with three line signals complete the target location , and effectively reduce errors. Simulation results show that the mechanism can effectively transmit signals in underwater acoustic channel , to be detected and to achieve positioning requirements.