基于多普勒频率变化率的无源定位算法研究

Research of passive location based on the Doppler changing rate

针对新型无源探测系统的要求,在原有多普勒频率变化率无源定位算法的基础上,为提高定位精度和收敛速度,提出了增加多普勒频率作为观测量,同时引入EKF算法对原始定位结果进行了处理。计算机仿真结果表明,改进后的算法能够满足新型无源探测系统的技术要求。

For the novel passive detecting radar system, an algorithm based on the existing algorithm of Doppler changing rate is presented to improve the locating accuracy and convergence rate. The Doppler frequency is adopted as the observed quantity, at the same time the EKF algorithm is introduced to process the initial locating results. The computer simulation proves that the modified algorithm meets the requirements of the novel passive detecting radar system.