基于卡尔曼滤波引导二次雷达波控策略

Guiding Secondary Radar Wave Control Strategy Based on Kalman Filtering

二次雷达采用发送询问接收应答的方式对空域中的目标进行侦察,相控阵雷达具有抗干扰能力强、波束控制灵活等特点,相控阵二次雷达目前已广泛应用于各类侦察设备。文章分析了传统相控阵二次雷达波束扫描特点和卡尔曼滤波器在飞机航迹预测中的应用,针对传统扫描方式采用固定波束宽度、固定扫描时间导致的雷达利用率不高的问题,提出基于卡尔曼滤波引导二次雷达波控策略,利用卡尔曼滤波对目标航迹的预测引导雷达波控策略实时更新。文章最后对两种扫描方式的雷达利用效率进行了仿真对比分析。

The secondary radar uses the way of sending query and receiving response to scout targets in the airspace.The phased array radar has the characteristics of strong anti-interference ability andflexible beam control,etc.Phased array secondary radar has been widely used in various reconnaissance equipments.This paper analyzes the characteristics of traditional phased array secondary radar beam scanning and the application of Kalmanfiltering in aircraftflight path prediction.Aiming at the problem of low radar utilization caused byfixed beam width andfixed scanning time in traditional scanning mode,a secondary radar wave control strategy is guided based on Kalmanfiltering is proposed.Real time update of radar wave control strategy is guided by prediction of target trajectory using Kalmanfiltering.At the end of the paper,a simulation comparison analysis is conducted on the radar utilization efficiency of two scanning methods.