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引言采用边扫描边跟踪(TWS)方式,通过雷达天线连续扫描得到目标的位置和速度矢量,是岸炮火控系统中广泛采用的一种方法。这种方法也应用于其它许多场合,但其精度要求一般不象火控系统中那样严格。菲利浦公司是提供这种系统的大厂商,加上精度是最重要的性能,因此多年来它在分析边扫描边跟踪性能方面作了大量的工作。本文对评估误差源影响的一些常用方法作了评述,分析了采用不同信号处理和位置提取方法时各种误差源的影响。给出了理论结果,并且同用图1所示雷达所做的真实试验的记录数据作了比较。
INTRODUCTION Using TWS method, the target position and velocity vector are obtained through continuous scanning of radar antenna. It is a widely used method in shore gun fire control system. This method also applies to many other occasions, but its accuracy is not as strict as the fire control system. Phillips is a major player in providing such a system, and because accuracy is the most important performance, it has done a great deal of work analyzing the edge-tracking performance over the years. In this paper, some commonly used methods to evaluate the error sources are reviewed, and the influences of various error sources when using different signal processing and location extraction methods are analyzed. The theoretical results are given and compared with the recorded data from real experiments done with the radar shown in Figure 1.