SUN Li-na, WANG Yong-yang, DAI Ming, et al. Digital controller for aerial camera with despun control[J]. Optics and precision engineering, 2007, 15(8): 1300-1304.
SUN Li-na, WANG Yong-yang, DAI Ming, et al. Digital controller for aerial camera with despun control[J]. Optics and precision engineering, 2007, 15(8): 1300-1304.DOI:
The principle of the despun digital control of a CCD camera is introduced
and a maximum rotational speed for assuring an ideal image in despun control system is obtained by analyzing the system. According to the speed of the despun control
a digital controller of camera for despun control system is design by taking a DSP as its core
a velocimeter as speed sensitive element to offer feedback for velocity loop in the system
and perturbation frequency measured by rate gyroscope as a feedforward function. The experiment results show that the velocity meets the demand of despun controll for its good image quality and the precision standard of 14.3(°)/s. Theoretical and lab researches both prove the feasibility of the despun control system.