任意平面圆周旋转散射点雷达回波理论模型的建立与仿真研究  

Study on Foundation and Simulation of Theoretical Radar Echo Model for Circle Rotation Scattering Point on Arbitrary Plane

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：《系统仿真学报》2008年第15期3920-3923,共4页Journal of System Simulation

基　　金：国家自然科学基金(60575013);航空科学基金(04I53067)

摘　　要：一个物体上的任何一个部件的机械旋转都可能调制雷达回波的相位函数,产生附加的频率调制作用,其表现为目标的多普勒频率产生了边带。基于雷达后向散射理论和散射点模型,针对雷达目标的任意圆周旋转散射点,详细推导并建立了雷达回波通用模型,对其与振动散射点的等效性进行了详细的讨论。最后通过两种方法对回波理论模型进行了有效性验证,理论分析和仿真结果表明,该模型是有效的。Mechanical rotation of structures in a target modulates the phase function of radar backscattering, induces frequency modulation on returned signals, and generates side-bands about the target＇s body Doppler frequency shift. Based on radar backscatter theory and scattering point model, a universal theoretical radar echo model of circle rotation scattering point on arbitrary plane was derived and established, and the equivalence of this model to the one of vibration scattering point was discussed. At last, the availability of the theoretical radar echo model was validated by using two ways. The result of the theoretical analysis and the simulation indicates the effectiveness of the model.

关 键 词：旋转 旋转散射点 振动散射点 微多普勒效应 相位调制 

分 类 号：TN911.72[电子电信—通信与信息系统]