宽带相控阵雷达海面场景散射回波模拟方法研究  

Study on the Scattering Echo Signal Simulation Method of Sea Scene for Wide-Band Phased Array Radar

作　　者：刁桂杰[1,2] 倪虹 杨亮 巩宁波 郭姣 Diao Guijie;Ni Hong;Yang Liang;Gong Ningbo;Guo Jiao(Beijing Electro-mechanical Engineering Institute,Beijing 100074,China;Science and Technology on Complex System Control and Intelligent Agent Cooperation Laboratory,Beijing 100074,China)

机构地区：[1]北京机电工程研究所,北京100074 [2]复杂系统控制与智能协同技术重点实验室,北京100074

出　　处：《系统仿真学报》2021年第2期401-408,共8页Journal of System Simulation

摘　　要：针对射频仿真中宽带相控阵雷达海面场景散射回波快速、精确模拟的难点问题,有效结合时域近似方法和频域分析变换方法,提出基于时域近似—频域变换混合的海面场景散射回波快速计算方法,利用频域分析方法对海上目标/干扰进行精细化散射回波模拟,采用时域近似方法对大面积海杂波背景进行快速回波计算,通过矢量合成,模拟生成宽带相控阵雷达海面目标/干扰场景回波信号。仿真测试结果验证了该方法的有效性,表明该方法既可保证目标及干扰模拟的精确性,又可保证大场景回波模拟的快速性。Aiming at the problem of fast and accurate simulation of sea-scene scattering echo for wide-band phased array radar in radio frequency simulation, an efficient calculation method is proposed based on the time-domain approximation and frequency-domain transform. The frequency-domain transform method is used to calculate the scattering echo signal accurately, and the time-domain approximation method is used to calculate the echo signal of the large area of sea-clutter background. Then the scattering echo signal for wide-band phased array radar of the sea-scene is generated through vector summation. The simulation results validate this hybrid method. It shows that this hybrid method not only ensures the accuracy of the target/interference scattering echo signal simulation, but also ensures the rapidity of the large area of sea-clutter echo signal simulation.

关 键 词：宽带相控阵雷达 散射回波 射频仿真 海面场景 

分 类 号：TP319.9[自动化与计算机技术—计算机软件与理论]