)Research on a Production Method of Sensor CorrectedProducts for ZY-3 Satellite

Objective By analyzing the high accuracy requirements of ZY-3image products and the key problems ingeometric processing,this paper proposes a production method for SC images based on virtual TDICCD array imaging technology.This method can be used to solve the geometrical registration problemin 4-bands multi-spectral image especially,since these adopt the same virtual TDI CCD array.Datacovering the Anping district,Hebei province,was used to produce the three-linear array and SC prod-uct,and to carry out adjustment experiments and precision analysis of the stereo model orientation.Experimental production was implemented to produce digital elevation models and digital orthographymaps,as well verify the precision of the products.Experimental results show that the geometric pre-cision of the SC product performs very well in the stereo mapping of 1∶50 000scale products.