多个同频振动散射点雷达回波理论分析与仿真研究  

Theoretical Analysis and Simulation on Radar Echo of Several Same Frequency Vibration Scatter Points

作　　者：郭俊锋[1] 李言俊[1] 张科[1] 

机构地区：[1]西北工业大学航天学院,陕西西安710072

出　　处：《测控技术》2007年第11期73-76,共4页Measurement & Control Technology

基　　金：航空支撑科技基金资助项目(05C53005);航空科学基金资助项目(04I53067)

摘　　要：基于雷达后向散射理论和散射点模型,针对雷达目标的同频振动散射点,详细推导并建立了雷达回波通用模型,对其幅度调制函数和相位调制函数的周期性进行了详细的讨论。最后对两个同频振动散射点合成雷达回波进行了计算机仿真研究,理论分析和仿真结果表明,该模型是有效的,并且随着同频振动散射点数的增加,其幅度调制函数和相位调制函数的周期性不发生变化,只是它们的值会随着振动点数的增加而改变。Based on radar backscatter theory and scatter point model, aimed at the same frequency vibration scatter point of radar target, radar echo universal model is derived and the periodicity of amplitude modulation function and phase modulation function is researched at length. At last, simulation research is carried out on radar echo of two same frequency vibration scatter points. Theoretical annlysis and simulation result indicate that the model is effective and that the periodicity of amplitude modulation function and phase modulation function is invariable as the number of scatter points increased, but, their amplitudes are variational,

关 键 词：振动 振动散射点 微多普勒效应 幅度调制 相位调制 

分 类 号：TN911.72[电子电信—通信与信息系统]