近程毫米波多普勒目标模拟器的建模与仿真  

Modeling and Simulation of Short-distance MMW Doppler Target Simulator

作　　者：刘清成[1] 李兴国[1] 万援[1] 

机构地区：[1]南京理工大学毫米波光波近感技术研究所,南京210094

出　　处：《系统仿真学报》2009年第16期4954-4957,共4页Journal of System Simulation

摘　　要：针对典型弹道体目标多普勒信号时频效应的分析,建立了连续波多普勒体制毫米波近程雷达的视频回波信号数学模型,并利用信号重排小波gabor变换方法对某靶机进行时频谱图仿真,仿真的结果说明该模型是可行的,同时提出将LabVIEW软件和D/A转换器产生的多普勒模拟信号注入射频调制器即可得到体目标多普勒回波信号,从而保证近程半实物仿真测试系统目标模拟器的可靠性。By analyzing extended target doppler time-frequency effect in the representative ballistic trajectory, a video echo mathematics model was established concerning the MMW doppler short range radar and a reset gabor wavelet time-frequency spectral map was simulated concerning the target drone. The results of the simulation illustrate the model＇s feasible, meanwhile a analog doppler signal was obtained by Lab VIEW and D/A converter and a video echo was obtained by the analog signal rejected into RF modulator, consequently the feasibility of target simulator HWIL simulation test system was ensured.

关 键 词：多普勒 时频效应 毫米波 近程雷达 半实物仿真 目标模拟器 

分 类 号：TJ430.4[兵器科学与技术—火炮、自动武器与弹药工程]