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２巻１号 （2021年4月） Volume 2, Number 1 (April 2021) |
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解説: 1.5 μm レーザ光を用いたドップラーライダによる 風計測技術 pp. 17-24 Technical Review: Wind velocity measurement technology by coherent Doppler lidar using 1.5-μm laser 辻 秀伸，今城 勝治，廣澤 賢一，亀山 俊平，柳澤 隆行 Hidenobu TSUJI, Masaharu IMAKI, Kenichi HIROSAWA, Shumpei KAMEYAMA, and Takayuki YANAGISAWA |
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Abstract Technology for visualizing wind is required for weather forecasting and aviation safety. A wind LIDAR has been developed for measuring wind remotely as movement of aerosols and molecules in the atmosphere by detecting laser scattering. Especially, the coherent Doppler LIDAR can detect wind with high sensitivity regardless of day or night and it is put in operational service as a measuring instrument for airport weather to prevent aircraft accidents due to downbursts and wind shears, wind power generation efficiency improvement and wind turbine damage prevention. This article describes the history and the types of wind measurement lidar, and introduces the configuration and performance of the coherent Doppler lidar system commercialized and under development by Mitsubishi Electric. |