DISTANCE MEASUREMENT ERROR CALIBRATION SYSTEM AND CALIBRATION METHOD FOR LASER RADAR

摘要

A distance measurement error calibration system and calibration method for laser radar (300). The distance measurement error calibration system for the laser radar (300) comprises a calibration assembly (10) and a processing unit. The calibration assembly (10) is arranged at a position which is a preset distance away from the laser radar (300), the laser radar (300) emits laser beams to the calibration assembly (10), the laser beams are reflected by the calibration assembly (10), the calibration assembly (10) can change the reflection intensities of the reflected beams multiple times, and the laser radar (300) receives the reflected beams reflected by the calibration assembly (10), and measures the corresponding measurement distances when reflected beams of different reflection intensities are received. The processing unit calculates a distance measurement error according to the measurement distance and the preset distance, and constructs a relationship function between the distance measurement error and the reflection intensities. The two parameters, i.e. the distance measurement error and the reflection intensities, can be measured and calculated by means of the laser radar (300), the reflection intensities can intuitively and accurately reflect the impact thereof on the distance measurement error, and the constructed relationship function between the distance measurement error and the reflection intensities can be used for correcting the actual measurement result and improving the measurement accuracy of the laser radar (300).