Multi-parameter airborne LiDAR system error automatic calibration method

The invention discloses a multi-parameter airborne LiDAR system error automatic calibration method, and relates to the technical field of airborne LiDAR system error calibration. The multi-parameter airborne LiDAR system error automatic calibration method comprises the steps of acquiring flight path data of a flight strip A and a flight stripe B; respectively performing flight path fitting by adopting a least square method, respectively performing interpolation on flight path lines, and determining flight path data of laser foot points; determining a ranging value and a scanning angle of the laser foot points of the flight stripe A and a ranging value and a scanning angle of the laser foot points of the flight stripe B; determining a closest homonymous point set by adopting a iterative closest point method; selecting a calibration model according to calibration parameters; building an error equation according to the calibration model, building a coefficient matrix and a constant term, and determining final ca