Influence of speckle effect on doppler velocity measurement
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- 作者：Zheng Zheng ; Zhao Changming ; Zhang Haiyang ; ocean@bit.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Yang Suhui ; Zhang Dehua ; Zheng Xingyuan ; Yang Hongzhi
- 关键词：Speckle effect ; Doppler spectrum ; Velocity measurement uncertainty ; Lidar
- 刊名：Optics & Laser Technology
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：80
- 期：Complete
- 页码：22-27
- 全文大小：1743 K
文摘
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Theoretical model of speckle effect on the spectrum of Doppler signal is built.
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A coherent Lidar system is established for experiments.
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Spot size of laser beam on target affects the velocity measurement accuracy.
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Large transverse velocity of target will broaden the spectrum of Doppler signal.
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Surface roughness of target has influence on Doppler signal.