船用雷达ARPA系统中α-β算法研究

摘要

α-βfiltering algorithm is a kind of high efficient filter algorithm, used to track the uniform motion in a straight line. In this paper, in order to solve the contradiction of the Marine ARPA radar track positioning, such as the instantaneity and accuracy,it uses α-βfiltering algorithm to filter the target track . At the same time to ensure accuracy,it can locate target quickly and calculate the target motion parameters.α-βfiltering algorithm can play a good effect at tracks filtering. Combining with the slow speed of the civil ship navigation and the characteristics of small mobility, assuming uniform linear motion and comparing the results of the average filtering with Kalman filtering. Finally, it is concluded that the alpha beta filter is more useful in the ARPA radar track filtering.%α－β滤波算法是一种高效滤波算法，常用于对匀速直线运动的跟踪。为了解决船用ARPA雷达追踪定位实时性和准确性的矛盾，提出使用α－β滤波算法对目标航迹进行滤波。在确保精度要求的同时，能够快速定位目标，并计算目标运动参数，在航迹滤波中启到了非常好的效果。结合民用船舶航行速度较慢，机动性小的特点，假设目标匀速直线运动，通过均值滤波，卡尔曼滤波的仿真结果比较，最终得出α－β滤波在ARPA雷达航迹滤波中具有更强的实用性。