Study on simulation model of spaceborne coherent Doppler wind lidar

Spaceborne coherent Doppler wind lidar is the preferred solution for fine wind field detection within the troposphere due to its high measurement accuracy, strong anti-interference capability, and low signal-to-noise ratio requirement. This paper establishes a theoretical simulation model for spaceborne coherent Doppler wind lidar. By considering atmospheric transmission and lidar system efficiency parameters, the detection performance of commonly used laser bands is compared based on the echo signal carrier-to-noise ratio (CNR) equation. Furthermore, echo simulation and wind speed retrieval are performed to compare the accuracy of wind speed inversion, thereby providing technical development recommendations to guide the future design of spaceborne coherent Doppler wind lidar specifications.