基于UKF的水下目标纯方位跟踪算法

摘要

The theory of UKF based on unscented transformation is applied to underwater target motion analysis. Specific steps are given, and target motion analysis is discussed. With the measurement of bearings, equations of state and measurement are established. The Monte-Carlo simulation experiment results demonstrate that,in the problem of nonlinear system, UKF has a better performance in precision, and the calculation amount of UKF is smaller,which make it more feasible to use.%将基于无迹变换的UKF方法运用到水下目标运动分析中,给出了具体步骤,讨论了其目标运动分析问题.利用测得的纯方位序列,建立了状态方程和观测方程.通过蒙特卡洛模拟仿真,结果表明,在处理非线性问题中,UKF方法在滤波精度上有较明显的提高;在实际应用中,该方法计算量小、实现简单,有较强的实用性.