陈泽宗, 金燕, 陈曦, 范林刚. 微波雷达海洋回波多普勒频谱的数值仿真[J]. 武汉大学学报 ( 信息科学版), 2013, 38(9): 1048-1051.
引用本文: 陈泽宗, 金燕, 陈曦, 范林刚. 微波雷达海洋回波多普勒频谱的数值仿真[J]. 武汉大学学报 ( 信息科学版), 2013, 38(9): 1048-1051.
CHEN Zezong, JIN Yan, CHEN Xi, FAN Lingang. Numerical Simulation of Doppler Spectrum of Sea Echo for Microwave Radar[J]. Geomatics and Information Science of Wuhan University, 2013, 38(9): 1048-1051.
Citation: CHEN Zezong, JIN Yan, CHEN Xi, FAN Lingang. Numerical Simulation of Doppler Spectrum of Sea Echo for Microwave Radar[J]. Geomatics and Information Science of Wuhan University, 2013, 38(9): 1048-1051.

微波雷达海洋回波多普勒频谱的数值仿真

Numerical Simulation of Doppler Spectrum of Sea Echo for Microwave Radar

  • 摘要: 研究了微波与海面相互作用的散射机理,在Plant等人研究成果的基础上对多普勒频谱仿真模型进行改进和完善。根据Bragg散射原理、复合表面理论和线性波理论,引入不同极化机制下的NRCS,给出多普勒频谱的谱型、幅度和时域变化特征,比较分析了不同海况下的仿真结果。

     

    Abstract: An improved numerical simulation method of Doppler Spectrum of sea echo for ground-based microwave wave radar is presented based on a study of scattering mechanism of microwave with ocean surface and some research results by W.J.Plant et al.According to the theories of Bragg scattering,composite surface,linear wave,and the expressions for NRCS of different polarization types,the characteristics of Doppler spectrum is displayed in shape,amplitude and time domain,and Doppler spectra of different ocean conditions are compared and qualitatively analyzed.Accordingly,it can be concluded that the simulation results reflect actual ocean environment and accord with objective law,which provides significant theoretical model for oceanographic observation by microwave wave radar and information extraction of sea state,especially parameters of wind,wave and current.

     

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