Research on Solving the Target Point of the Supersonic Anti-ship Weapon Based on Passive Acoustic Measurement

The current weapon test environment is becoming increasingly complex, and the problem of solving the target point of the supersonic anti-ship weapon exists that radar measurements are vulnerable to electromagnetic interference and optical measurements are vulnerable to visibility. To address this problem, this paper uses a model based on passive acoustic measurement and proposes a method for solving the target point. In this paper, multiple acoustic arrays are used to measure the shock waves generated during the flight of the weapon, and the direction of the shock wave relative to acoustic arrays can be obtained. Gauss-Newton iteration method and plane intersection are used to solve the target point. Compared with the existing methods, this method does not require to know the speed of the weapon. In addition, this paper theoretically analyzes the factors that affect the calculation accuracy of the target point. Finally, this paper carries out the simulation under the condition that the measurement error of the acoustic arrays is 1°, and the results show that the average error of the target position within the target area does not exceed 0.35m, and the measurement system can meet the test accuracy requirements.