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引言对天线指向角扫描是广泛应用于跟踪目标的一种技术。跟踪器的接收机有一个同步检波器或分解器,它用扫描角作为参考信号,产生一个正比于误差角的误差电压。这个误差电压驱动天线的扫描中心精确地指向目标。当跟踪天线跟踪一个导弹时,这个误差电压或所产生的天线响应也应用于导弹制导。当存在紧邻的空间目标时,象编队飞行的飞机或一个低空飞机及其多径图象,就出现了一个问题。与瞄准一个目标不同,跟踪器会改变为跟踪所接收到的目标间功率矩心附近位置。
Introduction Antenna pointing angle scanning is a technique that is widely used to track targets. The tracker receiver has a synchronous detector or resolver that uses the scan angle as a reference signal to produce an error voltage that is proportional to the error angle. This error voltage drives the scanning center of the antenna precisely toward the target. When the tracking antenna tracks a missile, this error voltage or the resulting antenna response also applies to the missile guidance. When there is an immediate spatial target, there arises a problem as a formation-flying aircraft or a low-altitude aircraft and its multipath images. Instead of aiming at a target, the tracker changes to tracking the position received near the target centroid of the target.