Coherent wind lidar is a product of our company based on the principle of lidar. It adopts the principle of coherent detection. By the scattered echo signal of the laser beam to the aerosol in the atmosphere and coherent mixing with the radar local oscillator light, the Doppler frequency shift of the aeros relative to the laser beam is obtained through the digital discrimination technology of the intermediate frequency signal. Combined with the optical scanning of the radar, the information of the atmospheric wind is finally measured. It can be used with relevant three-dimensional detection equipment (such as aerosol lidar, two-dimensional multi-axis differential spectrometer, atmospheric ozone detectionar, vehicle-mounted three-dimensional monitoring instrument, etc.) to achieve remote sensing of the emission flux of pollution sources, and diagnosis of the transport and transport flux of regional pollutants.