人工衛星・航空機搭載ドップラー雲レーダーにおける準コヒーレント・インコヒーレント散乱信号

概要

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The correlation signals of the coherent, quasi-coherent and incoherent backscatterings from clouds have been analytically calculated from the unified formalism based on the Eulerian description for a space/air borne Doppler radar. As concerns the Fraunhofer region, the Doppler correlation function of the incoherent scattering was proven to be applied to the quasi-coherent scattering despite of the difference in scattering properties. The spectral broadening due to the horizontal velocity of clouds including a flight velocity and due to wind shears was also calculated. Since the coupling of these two effects is substantial, the conventional estimation was found not to be adapted. The re-estimation of cross-sections for these scatterings and the study of coherent scattering were also performed.
社団法人電子情報通信学会の論文
2000-11-17