基于多普勒效应的非合作目标轨迹测量方法

Non-cooperative Target Trajectory Measurement Method Based on Doppler Effect

针对传统测量方法在水下非合作目标轨迹测量中,因目标辐射声频率特性未知而导致的装置复杂、解算难度高的问题,提出基于多普勒效应的非合作目标轨迹测量方法。该方法通过计算各传感器接收信号的相对多普勒系数,设计了求解区间更迭的粒子群最优化方法,不需要预先知道非合作目标辐射噪声频率,即可完成目标轨迹估计。仿真计算结果表明,该方法相比传统方法,其精度和可适用范围都有显著的提高。

Aiming at the problem that the traditional measurement method used in the measurement of underwater non-cooperative target trajectory was complex due to the unknown frequency characteristics of the target's radiated sound,a non-cooperative target trajectory measurement method based on the Doppler effect was proposed in this paper.By calculating the relative Doppler coefficients of the signals received by each sensor.In this method,a particle swarm optimization method was designed to solve the interval change.It did not need to know the radiation noise frequency of the non-cooperative target in advance to complete the target trajectory estimation.Simulation results showed that the method had significantly improved accuracy and applicable range compared with traditional methods.