情报雷达低仰角测高性能分析及仿真

现代防空作战中,情报系统提供的目标高度信息是标明该目标空间位置坐标的主要参数之一,对防空作战指挥系统进行威胁度判断、指挥决策以及火力引导都至关重要。本文综述了对空情报雷达多波束和差法测高基本原理,分析了多路径效应对低仰角波束方向性影响的成因,以及由此导致的对空情报雷达测高性能恶化情况;建立了某雷达低仰角测高模型,利用典型参数进行不同地形条件下的测高性能仿真研究;分析了低仰角保精度测高的阵地条件,为不同阵地环境下雷达测高性能的评估、修正和阵地选择方案优化提供参考。

Analysis and Simulation of Low Elevation Height Finding Performance of Surveillance Radar

Target height information provided by surveillance radar is fundamental for threat evaluation, command decision, weapon guidance in air defense operation. The height finding principle of surveillance radar with sum and difference beams is summarized. Influence of multipath effect upon height finding is analyzed. Height finding model of a surveillance radar is presented and simulated with typical landform parameters, which can serve for the evaluation and modification of height finding performance of surveillance radar in different landforms and its site selection.