机载PD雷达DBS成象处理计算机仿真

COMPUTER SIMULATION OF DOPPLER BEAM SHARPENING IMAGING PROCESSING FOR AIRBORNE PULSE DOPPLER RADAR

根据多普勒分辨理论,提出了一种机载PD雷达DBS实时成象处理的实现方法,并对载机前方大面积地面原始图象和DBS实时成象进行了计算机模拟。模拟结果表明,在雷达天线匀加速扫描状态下载机前方—60°～+60°成象,可以提供系统锐化比为19.71的高分辨力雷达图象。

Based on the principle of Doppler resolution theory,a real-time imaging processing scheme of Doppler beam sharpening (DBS) for airborne pulse Doppler (PD) radar is developed. Computer simulations of large area terrain in front of airborne radar and DBS real-time imaging processing are made. Computer simulation results show that DBS ratio of the system can reach 19. 71 and a large area of radar image with high resolution can also be provided within the range of angle from -60° to 60° in front of airborne radar when the radar antenna keeps scanning with uniform acceleration.