CAJ | 학술논문

根据某型推扫式航侦相机的工作原理,利用共线方程,以坐标系旋转代替姿态变化,得出像移与姿态扰动和成像倾角的解析表达式.并在此基础上结合工作参数对成像倾角和姿态扰动共同作用下的像移进行仿真,分析其结果知当成像倾角在0.13 rad范围内变化时,像移与成像倾角无关,与姿态扰动量成线性关系;当成像倾角超过这个范围时,像移与成像倾角之间存在非线性,但整体趋势仍然是随着各扰动量的增加而增加.这为同类相机及像移补偿装置的设计提供理论依据.
근거모형추소식항정상궤적공작원리,이용공선방정,이좌표계선전대체자태변화,득출상이여자태우동화성상경각적해석표체식.병재차기출상결합공작삼수대성상경각화자태우동공동작용하적상이진행방진,분석기결과지당성상경각재0.13 rad범위내변화시,상이여성상경각무관,여자태우동량성선성관계;당성상경각초과저개범위시,상이여성상경각지간존재비선성,단정체추세잉연시수착각우동량적증가이증가.저위동류상궤급상이보상장치적설계제공이론의거.
According to the operating principle of one scanning aerial reconnaissance CCD camera,an analysis expression of image motion was derived with collinearity equation,which was about attitude disturbance and image obliquity.Combining the working parameters of imaging obliquity and attitude disturbance,a simulation analysis was given,and the results show that image motion is independent on image obliquity and linearizes relationship of attitude disturbance when image obliquity θ＜0.13 rad.Beyond this range,image motion is nonlinear with image obliquity and attitude disturbance.The whole trends will increase coupling with the increase of the disturbance,which can supply a theory basis for the same species of camera and its image motion compensation devices.