Method for realizing deorbit control by using out-of-plane thruster through attitude bias

The embodiment of the invention relates to a method for realizing deorbit control by using an out-of-plane thruster through attitude bias. The method comprises the following steps: determining a satellite deorbit control time interval by using a star sensor; according to the characteristic parameters of the satellite, the minimum available residual fuel quantity of the satellite is determined, and the available speed increment of satellite deorbit control is calculated; according to the available speed increment, the semi-major axis and the satellite attitude offset angle, the total semi-major axis control quantity and the total air injection duration are calculated, and a satellite deorbit control strategy is determined; and calculating a thruster efficiency factor, and performing parameter adjustment on control parameters in the satellite deorbit control strategy according to the thruster efficiency factor. According to the embodiment of the invention, the control time interval is not restrained during the