反直升机雷群的机动目标跟踪  

Tracking a Maneuvering Target Using Anti-Helicopter Mine Fields

作　　者：刘向东[1] 张河[1] 程翔[1] 

机构地区：[1]南京理工大学机械工程学院204教研室,江苏南京210094

出　　处：《信号处理》2005年第5期451-454,共4页Journal of Signal Processing

摘　　要：反直升机雷测距精度较低,而利用角度信息估计目标的距离和速度实质上是一个非线性状态估计问题,这种单站被动式跟踪可能构成一个不可观测系统,将导致跟踪滤波器的不稳定和发散。本文对由反直升机雷构成的雷群的目标定位和跟踪进行了研究,利用最小二乘法和基于“当前”统计模型的自适应滤波组合算法进行数据处理,最小二乘法的估计结果作为自适应滤波的观测值,结果表明算法简单而且有效,在目标机动和非机动时都能得到良好的估计结果。The accuracy of range estimation of anti-helicopter mine is lower, and the bearing-only location is a nonlinear state estimation in essence, the single observer passive tracking may form a unobservable system, makes the tracking filter instable and divergent. In this paper, the target location and tracking using the mine fields consisted of some anti-helicopter mines is analyzed and the algorithm is a combination of least squares estimation and the adaptive filtering algorithm based on current statistical model, the least squares estimation is used as the measurement of the adaptive filter. The results show that the algorithm is simple and efficient, and has a accurate state estimation for maneuvering and non-maneuvering target.

关 键 词：反直升机雷 被动目标跟踪 最小二乘 自适应滤波 机动目标跟踪 “当前”统计模型 最小二乘法 估计问题 组合算法 非线性状态 

分 类 号：TN953[电子电信—信号与信息处理] TM911[电子电信—信息与通信工程]