RPC-based method for improving and calibrating block adjustment of three-linear array three-dimensional satellite
A technology of block adjustment and three-line array, which is applied to the interpretation of photos, measuring devices, instruments, etc., can solve the problems of loss of accuracy and inability to check the parameters of three-line array cameras, etc.
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[0042] Attached below figure 1 The inventive method is described in detail, specifically as follows:
[0043] (1) The orbit of the satellite is extracted from the auxiliary data downloaded by the satellite (X ob , Y ob ,Z ob ) and gesture And determine the projection relationship between the ground point and the image point according to the extracted orbit and attitude of the satellite, that is, the strict imaging model;
[0044] The coordinate value (X ob , Y ob ,Z ob ), that is, the GPS phase center S G Coordinates under the ground-fixed system, satellite barycenter S ST and Camera Station Center S S The relationship between figure 2 Shown:
[0045] Obtain the coordinate S of the center of the camera station under the ground solid system S , calculated as follows:
[0046] S S= S ST +S S-ST = S G +S ST-G +S S-ST (1)
[0047] Among them, S ST-G is the installation value from the GPS phase center to the satellite body, S S-ST It is the installation ...
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