Geometrical CalibrationPublishDate：2022-10-31

　　China Songshan Satellite Remote Sensing Calibration Site-Songshan Stationary Target Site, is our first remote sensing satellite on-orbit calibration stationary target site for on-orbit radiation calibration, dynamic scope, resolution and MTF detection for ZY-3, ZY-1 02C, subsequent high resolution satellites and payload.

　　So far, the on-orbit geometrical calibration, absolute radiation calibration and on-orbit performance detection of parameters such as scanner on-orbit MTF, resolution and dynamic scope for ZY-1 02C, ZY-3, GF-1 and GF-2 have been completed in Songshan calibration site. The actual applications show that this site can meet technical requirements on on-orbit geometrical calibration for satellite-borne high resolution scanner, scanner on-orbit performance detection and absolute radiation calibration

　　The establishment of China Songshan Satellite Remote Sensing Calibration Site symbolizes that the on-orbit calibration technology of our high resolution earth observation remote sensing satellite goes into a new level, which will promote the development of on-orbit geometrical calibration, on-orbit detection of key parameters of scanner and on-orbit radiation calibration in an operational, normal and standard direction and be of great importance to improve the level of quantitive application of our remote sensing satellite.

Figure 1 Sketch of Songshan Stationary Target Site

Figure 2 GF-2 satellite image in Songshan Stationary Target Site

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