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本文论述将滤波理论应用于机载雷达中对目标进行距离、速度、方位角和高低角跟踪的多环反馈系统,首先根据目标和天线的相对运动建立控制四坐标跟踪环所需的状态的矢量微分方程。然后推导相应的滤波算法,最后给出这种系统对一次样本航迹跟踪的计算机模拟,性能边界的计算曲线,并和通常没有采用最佳滤波器的跟踪系统比较性能。 本文所讨论的方法和得出的结论可以延用到地面雷达、舰载雷达以及其他有源和无源的跟踪系统。
This paper discusses the application of filter theory to multi-loop feedback system of distance, velocity, azimuth and elevation and low angle tracking of airborne radar. Firstly, according to the relative movement between the target and the antenna, a vector for controlling the state of the four- Differential equations. Then, the corresponding filtering algorithm is deduced. Finally, the calculation curve of the computer simulation and performance boundary of this system for a sample track is given and compared with the tracking system which usually does not use the best filter. The methods and conclusions discussed in this paper can be extended to ground-based radars, shipboard radars and other active and passive tracking systems.