基于时差及多普勒频差的IMM无源定位算法

IMM Algorithm for Passive Location Based on TDOA and FDOA

无源定位系统本身不发射电磁波,完全是被动工作,具有很好的隐蔽性,受到各方的青睐。针对时差和多普勒频差信息固定多站定位问题,给出了一种对运动目标进行定位跟踪的IMM滤波算法。文中首先对目标定位原理进行了阐述,然后对IMM滤波算法的滤波过程进行了详解。经过计算机仿真验证,此算法是正确有效的。

Passive location system detects target without send electromagnetic wave, it has good concealment performance and good graces by force. Aimed at fixed multiple observer passive location based on TDOA and FDOA information, a IMM filter algorithm of location and tracking moving-target is presented. Firstly the principle of location is expatiation, and then the process of IMM al- gorithm is particular presentation, lastly, it is confirmed that the multiple-model algorithm is legitimacy and feasible through com- puter simulation.