跟踪制导雷达中杂波图的设计与实现

Design and Realization of Clutter Map in Tracking and Guidance Radar

常规的跟踪制导雷达由于工作在距离波门模式,基本没有杂波干扰问题。现代战争环境要求跟踪制导雷达具有自主目标搜索能力,因此跟踪制导雷达也将面临杂波抑制问题。杂波图是地面情报雷达常用的一种杂波抑制方法,其实现方法不适用于跟踪制导雷达这种波束扫描变化十分灵活的雷达体制。文中根据制导雷达在不同工作模式下波束扫描的变化规律,通过对工作波束进行统一编号来构建三维杂波图,根据编号可以方便地实现杂波图的建立及扩展。该方法适用于具有搜索模式的跟踪制导雷达,简单易行,杂波抑制效果明显。

Since the conventional tracking and guidance radars are work in the range gate mode, so there is no clutter interference in these radars. The modem war environment requires tracking and guidance radar to have the ability of its own target search, so the tracking and guidance radar has to be faced with the clutter in- terference. The clutter map is a commonly used method to suppress clutter in ground based intelligence radar, but the method used in intelligence radar does not suit the tracking and guidance radar because of the agile beam scan mode in this radar mode. In this paper, according to the variation of the beam scan in various working modes, a 3-D clutter map is established by numbering all the working beams, and one can .form the clutter map and clutter map expansion according to the number. This method is suit able for the tracking and guidance radar with searching mode, easy to realize, and the effect of the clutter suppressing is perfect.