Laser & Optoelectronics Progress, Volume. 57, Issue 9, 092802(2020)

Influence of Satellite Micro-Vibrationon Signal-to-Noise Ratio of Wind LiDAR

Qipeng Cao*, Yongchang Li, Xiaojing Dong, Chao Wang, and Jing Wang
Author Affiliations
  • China DFH Satellite CO., LTD, Beijing 100094, China
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    The measurement of atmospheric wind field is of great significance for global climate change, sea storm detection, accuracy of daily weather forecast, and even national military security. Space-based coherent wind light detection and ranging (LiDAR) has attracted wide attention due to its high time-space resolution, high sensitivity, real-time detection, and small volume. Most spacecraft have micro-vibration disturbance sources, which can influence the signal-to-noise ratio (SNR) of coherent wind LiDAR. Based on the principle analysis of coherent wind LiDAR system, this paper analyzes the influence of satellite micro-vibration on the signal-to-noise ratio of the coherent wind LiDAR, based on the measured data of a certain type of micro-vibration. The experimental results show that satellite micro-vibration has a certain effect on the signal-to-noise ratio of coherent wind LiDAR. When the mismatch angle is 3.77 μrad, the signal-to-noise ratio fluctuates between -1.5 dB and 1.36 dB, and the impact is relatively weak. From a micro-vibration perspective, a satellite platform can meet the detection requirements of a coherent wind LiDAR.

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    Qipeng Cao, Yongchang Li, Xiaojing Dong, Chao Wang, Jing Wang. Influence of Satellite Micro-Vibrationon Signal-to-Noise Ratio of Wind LiDAR[J]. Laser & Optoelectronics Progress, 2020, 57(9): 092802

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: May. 28, 2019

    Accepted: Sep. 26, 2019

    Published Online: May. 6, 2020

    The Author Email: Cao Qipeng (caoqipeng2004@126.com)

    DOI:10.3788/LOP57.092802

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