基于时延的水中目标纯方位跟踪算法

Research on underwater bearings-only target tracking algorithm based on time-delay

针对水听器与艇载噪音声纳构成的系统,提出了一种新的水下被动目标运动分析方法。利用测得的方位序列和到达不同传感器的时延差,建立了状态方程和观测方程。运用扩展卡尔曼滤波算法,研究了该系统的目标运动分析问题。蒙特.卡洛模拟仿真试验结果表明,该方法具有较高的定位性能。该系统构成简单,有良好的应用前景。

Taking underwater sensor and sub sonar as an example, a new underwater system of passive target motion analysis（TMA）is designed. Base on the measurement of bearings and time-delays between different sensors, the equation of state and the equation of measurement are established. With the algorithm of extend Kalman filter, the target motion analysis is discussed. The Monte-Carlo simulation experiment results demonstrate that the new algorithm has better performance. The system is easy to constitute, and has great utility.