Theoretical Analysis of Coherent Beam Scattering inside and outside a Fog Particle in the Region of Mie Scattering and Analysis of Intensity Distribution of Scattering Beam by Fog Model

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概要

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• The wavefront synthesizing method was used to analyze the real physical phenomena of a laser beam scattering in for. The analyses were performed by steady state in the standing waves. The wavefront synthesizing method is simple, and the calculation time and accuracy do not depend on the size or number of particles being analyzed, so it is possible to analyze stably. Using this method, the intensity distributions and phase distributions inside and outside a single fog particle are obtained. The analysis results were comparable to ones calculated by Mie theory with a long distance. We also extended this analysis to many particles of different sizes in a fog space. For a fog space, the bold approximation was applied, This approximation method was validated by comparing the water content of natural fog. The analyzed results compared well with experimental results for the intensity distribution of a scattering beam. This study could quantitatively evaluate the propagation of a Baser beam in fog, and it also proved the appropriateness of the proposed laser radar equation for real weather conditions, considering the divergence of the transmitting laser beam.

• 社団法人照明学会の論文

著者

• Ikeda Kazuho

  Department Of Biological Sciences Graduate School Of Science University Of Tokyo

• Ikeda K

  Osaka City Univ. Osaka Jpn

• Ikeda Koichi

  Tokyo Rika Daigaku

• Ikeda K

  Tokyo Rika Daigaku Dept. Electri. Engng. Fac. Sci. Tech.

• Shiina Tatsuo

  Tokyo Rika Daigaku

• Ikeda Koichi

  Tokyo Rika Daigaku Department Of Electrical Engineering Faculty Of Science And Technology

• Ikeda Koichi

  Faculty Of Science And Engineering Tokyo Rikadaigaku (science University Of Tokyo)

• Ikeda Koichi

  Tokyo Rika Daigaku Dept.electri.engng. Fac.sci.tech.

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