一种基于偏振信息的气溶胶激光雷达分层反演方法及系统
By employing a polarization-based aerosol lidar layered inversion method, and utilizing a polarized Mie scattering lidar system to acquire information about the upper-air aerosol layer, the problem of instability in the inversion of thin upper-air aerosols is solved, and high-precision aerosol backscattering coefficient inversion is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG UNIV
- Filing Date
- 2026-04-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are unstable under the conditions of rarefied aerosols at high altitudes, are highly sensitive to errors, and are difficult to accurately obtain the aerosol backscattering coefficients of aerosols at high altitudes.
A layered inversion method based on polarization information is adopted for aerosol lidar. Parallel and vertical polarization channel echo signals are obtained through a polarized Mie scattering lidar system. The upper-level and near-surface aerosol layers are identified in layers, the aerosol depolarization ratio is calculated, and inversion is performed in combination with polarization information to establish a quantitative relationship between the aerosol backscattering coefficient and the volume depolarization ratio.
It improves the stability and accuracy of upper-level aerosol inversion, realizes the synergistic inversion of upper-level aerosols and near-surface aerosols, and reduces errors.
Smart Images
Figure CN122085305B_ABST