The invention provides a full-link numerical
simulation method of an
aerospace TDICCD (
Time Delay and Integration Charge Coupled Device) camera based on an in-
orbit imaging physical mechanism, belongs to the technical field of photoelectronic imaging, and solves the technical problems of
satellite full-link full-physical hardware
simulation. The method provided by the invention comprises the following steps: step 1, establishing an observation scene containing a spectrum attribute; step 2, carrying out
orbit modeling; step 3, carrying out posture modeling; step 4, modeling a camera optical
system; step 5, carrying out star observation vector modeling; step 6, carrying out
entrance pupil radiance field modeling on a target camera; step 7, carrying out camera
radiation responding modeling; step 8, carrying out MFT (
Modulation Transfer Function) degeneration
simulation; step 9, carrying out
noise adding and compression simulation. According to the full-link numerical simulation method, the simulation cost is saved; the influences on imaging, caused by errors introduced by a full-physical simulation platform, are eliminated; a projection relation between each point of sensor image surfaces at different imaging moments and a corresponding surface feature point is calculated; a problem of
geometric distortion in an imaging process can be reflected; each module is provided with a reserved interface so as to conveniently carry out alteration upgrading according to actual scientific research requirements.