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一、引言短波后向散射超视距雷达(以下简称OTH雷达)是预警低空突防飞机较有前途及较经济的一种手段。出于经济考虑,OTH雷达天线垂直波瓣常采用宽波束,在此情况下,电离层多径结构引起了回波多径和模式模糊等效应,给OTH雷达航迹处理带来了微波视距雷达不曾遇到的问题。另外,目标点迹不连续性,射频干扰不可预测性以及OTH雷达必须根据
I. INTRODUCTION Short-wave backscatter OTH radar (hereinafter referred to as OTH radar) is a more promising and economical means of early warning low-altitude penetration aircraft. Due to economic considerations, the wide beam is often used in the vertical lobes of OTH radar antennas. In this case, the ionospheric multipath structure causes echo multipath and mode ambiguity effects, which brings a microwave horizon radar to OTH radar track processing Never encountered problems. In addition, the target trace discontinuity, unpredictability of radio frequency interference and OTH radar must be based on