基于比例导引律的机动目标跟踪算法

The Study on the Simulation of the Maneuvering Target Based on Proportion Guide

在反舰导弹做比例导引运动的基础上,将比例导引规律引入状态方程,建立线性时变模型,实现对系统状态的自适应滤波,运用Matlab语言进行仿真计算,分析并得到了在不同的初始航向角、比例导引系数、导弹的初始位置和速度下的导引弹道滤波曲线和弹目相遇时间。仿真结果表明,此方法原理是正确的,计算是可行的。

Based on proportional guide motion of anti-ship missile, the article discusses the question of maneuvering target tracking through introducing the character of proportion guide into state equation, constructing a linear time-varying model, estimating parameters of the system, and using the standard Kalman filter with parameters to get the state estimate of the system, and uses Matlab language to simulate it. Then it analyzes various conditions of different initial values of voyage direction, proportion guide coefficient, missile＇s initial location, and velocities; and gets these different guide trajectory filter curves and encountering times of missile and target. The simulation results indicate that the principle is right and that the method is feasible.