一种新型单站无源定位算法研究  

A New Technique on Single Observer Passive Location Scheme

作　　者：刁鸣[1] 张一飞[1] 缪善林 

机构地区：[1]哈尔滨工程大学信息与通信学院,黑龙江哈尔滨150001

出　　处：《探测与控制学报》2007年第B08期9-11,20,共4页Journal of Detection & Control

基　　金：国防基础科研基金资助项目(K1503060217)

摘　　要：原有的基于方位角、俯仰角及其变化率的无源定位算法要求目标静止或运动速度已知,在一定程度上限制了算法的应用。针对新型无源探测系统的要求,提出了增加观测信息,即多普勒频率及其变化率,不仅能够在目标运动速度与运动状态未知的情况下实时估计出目标相对于观测器的三维坐标,而且还能够估计出它们之间的相对速度。同时引入扩展卡尔曼滤波(Extended Kalman Filter,EKF)算法对原始定位结果进行了处理,最后给出了计算机仿真结果。The existing algorithms based on the azimuth and elevation angles and their changing rates require that the target is stable or speed is known, and this restricts the use of algorithms. For the requirement of the Novel Passive Detecting Radar System, this paper puts forward a new method of utilizing the information of Doppler frequency and its changing rate, which can estimate not only the targets real-time coordinates but also its speed. At the same time, the EKF algorithm is introduced to process the initial locating results. As a comparison, the simulation results are presented in the last section.

关 键 词：多普勒频率变化率 EKF算法 无源定位 相对速度 

分 类 号：TN911[电子电信—通信与信息系统]