High Resolution Remote Sensing Satellite Geometry Calibration Technology

The geometric calibration on remote sensing satellite, foreign have many years of experience and practice, but limited to the details of satellite technology, satellite technical parameters of the core indicators of commercial confidentiality issues, generally hardly get their internal information. domestic high-resolution satellite are hardly any, Geometric calibration work study less, this information is also relatively limited. According to the time of geometric correction satellite up points can be divided into two types One is the pre-launch (laboratory) geometric calibration, one is after the launch (in-orbit) geometric calibration.Remote sensing satellites generally have to go through pre-launch laboratory calibration in order to determine within the sensor interior photographic survey element, relationship between the locations. The purpose is to lead a laboratory to obtain high-precision calibration of camera inner orientation elements, optical distortion bad, installation errors and so on.After the satellite launch, we adopt measures like solution bias matrix, the directional distortion to revise obtains after the time the experiment demarcates changes the influence factor. Eliminates the errors between the platform the system as well as the camera itself component's distortion difference and so on, improve positioning accuracy of the image geometry, for the High resolution remote sensing satellite data on the reliability of providing technical support to promote the potential applications.