Distortion Correction for Optical Measurement Systems in a Test Range

摘要

A flexible method for timely correction of distortion of optical measurement system in a test range environment is proposed to eliminate the negative impact of distortion on accuracy. The fitting relationship between the measured miss distance and real miss distance is solved because theoretically the compound angle is unchanged. Operation of the method is simple and quick and there is no need of special-purpose instruments. The method is validated in an experiment of distortion correction. The result of data analysis shows that the measurement accuracy is increased from 100 to 20 arc s. Therefore, it has a high value for extended application.