Simulation Test Method of Whole Trajectory for Undersea High-Speed Vehicle Base on Acoustic Butt Coupling

For the overall performance evaluation before sea trial, it is urgent to establish a hardware-in-the-loop simulation environment on land to verify its overall effectiveness. In this study, an on-land simulation test system of undersea high-speed vehicle’s whole trajectory is designed based on acoustic butt coupling. The constitution and principle of the system are given, and the key technologies concerning such as acoustic butt transducer, acoustic butt array, acoustic matching material and channel isolation control are discussed. The correctness and feasibility of the acoustic butt coupling method are verified by the test data, then the whole trajectory simulation test is realized in laboratory condition. A whole trajectory simulation example proves that the whole trajectory simulation test technology based on acoustic butt coupling is applicable to overall performance evaluation and trajectory test of undersea high-speed vehicles.