基于TDOA和DOA测量的单站无源定位方法研究  

Study on single station passive location method based on TDOA and DOA measurement

作　　者：乔梁[1] 

机构地区：[1]华东理工大学自动化系,上海200072

出　　处：《沈阳工程学院学报（自然科学版）》2006年第4期341-344,共4页Journal of Shenyang Institute of Engineering:Natural Science

摘　　要：近年来空中运动目标无源定位和跟踪技术一直是人们研究的热点问题,这种技术在航空、制导等领域都有广泛的应用,有着广阔的应用前景[1].探讨了一种基于辐射源的信号到达时间差(TDOA)和信号到达方向(DOA)信息,利用固定单站对机动目标进行无源定位与跟踪的新方法.在建立目标机动模型与测量方程的基础上,运用修正增益扩展卡尔曼滤波(MGEKF)算法,实现对机动目标进行定位与跟踪.同时讨论了它的若干技术问题、定位原理与算法.通过计算机仿真,验证了该方法的正确性与有效性.Passive locating and tracking technologies for mobile target in space are the key problems in recent years. These technologies have been widely applied in the fields of aviation, control and guidance, and have expansive application prospects. Discusses a new method to locate and track mobile target by immovable single station, which is based on the information of arrival time difference and arrival direction of emitter signal. On the basis of building target movement model and measuring equation, applying MGEKF algorithm, realizes the locating and tracking for mobile target. Discusses many technology problems, location principle and algorithm. By simulation, validates the correctness and effectiveness of this method.

关 键 词：单站无源定位 修正增益扩展卡尔曼滤波 方位角 俯仰角 方位角变化率 

分 类 号：TN953[电子电信—信号与信息处理]