基于相干视频模拟法的机载脉冲多普勒雷达地杂波功率谱仿真分析  

The Ground Clutter PSD Simulation and Analysis for Airborne PD Radar Based on Coherent Video Model

作　　者：龚云[1] GONG Yun(Nanjing Research institute of Electronics Technology,Nanjing 210013,China)

机构地区：[1]南京电子技术研究所,江苏南京210013

出　　处：《电声技术》2022年第3期112-116,共5页Audio Engineering

摘　　要：介绍机载脉冲多普勒雷达地杂波功率谱的3种计算方法并分别介绍其优缺点,重点研究用相干视频信号模拟法计算机载脉冲多普勒雷达地杂波散射单元回波信号的过程,详细阐述相干视频模拟法中关于距离和方位分辨单元的划分方法,建立地杂波散射单元回波信号模型,着重描述回波信号的矢量叠加过程,并给出具体的计算公式。最后,针对不同的试飞场景进行了地杂波功率谱仿真计算,仿真结果表明了计算过程的正确性。This paper introduces three methods of calculating the power spectrum of airborne pulse Doppler radar ground clutter and states their advantages and disadvantages respectively, focusing on the study of coherent video signal simulation method for computer borne pulse Doppler radar ground clutter scattering unit. In this paper, the division of distance and azimuth resolution units in the coherent video simulation method is described in detail, the echo signal model of ground clutter scattering unit is established, the vector superposition process of echo signal is described, and the specific calculation formula is given. Finally, the ground clutter power spectrum simulation is carried out for different test flight scenarios, and the simulation results show that the calculation is correct.

关 键 词：地杂波 相干视频信号 机载脉冲多普勒雷达 

分 类 号：TN958.2[电子电信—信号与信息处理]