Geometric Calibration of ADS40 System Based on Test Field

The particular sensor geometry of the airborne Three-Line-Scanner ADS40 brings particular process.Sensor calibration is important process of photogrammetry.Recently,people tended to research on estimating the performance of the calibration file and analyzing the influence of self-calibration.In contrast,the goal of this paper was to generate a sufficient calibration file based on test field calibration.The paper describes the mathematical model of GPS/IMU supported aerial triangulation of ADS40,designs a set of calibration process,and gives results using the data of the test site.Experimental results show that the calibration of the ADS40 is effective to improve data accuracy and reliability.