CAJ | 학술논문

为了在地面试验阶段准确标定出航天CCD相机在轨成像时的像面位置，提出了一种基于自准直干涉测量原理和调制传递函数测量原理的航天CCD相机焦面位置的地面标定方法。介绍了该方法的原理和实施过程，并以口径1m、焦距20m的平行光管标定口径600mm、焦距6m的航天CCD相机为例，分析并计算了新标定方法和已有标定方法的标定精度。结果表明：新标定方法的标定精度优于0．006mm，是已有标定方法标定精度的5倍至10倍，能够满足现阶段所有航天CCD相机的焦面位置的标定精度要求。
위료재지면시험계단준학표정출항천CCD상궤재궤성상시적상면위치，제출료일충기우자준직간섭측량원리화조제전체함수측량원리적항천CCD상궤초면위치적지면표정방법。개소료해방법적원리화실시과정，병이구경1m、초거20m적평행광관표정구경600mm、초거6m적항천CCD상궤위례，분석병계산료신표정방법화이유표정방법적표정정도。결과표명：신표정방법적표정정도우우0．006mm，시이유표정방법표정정도적5배지10배，능구만족현계단소유항천CCD상궤적초면위치적표정정도요구。
In order to calibrate the focal plane position of a space charge-coupled device (CCD) camera in terrestrial measurement stage ,we proposed a novel calibration method based on the principle of autocollimation interferometry and modulation transfer function (MTF) measure-ment .We introduced the principle and the implementation process of the proposed method , and taking the calibration of focal plane position of a space CCD camera with a aperture of 600 mm and a focal length of 6m by a collimator with a diameter of 1 m and a focal length of 20m as an example ,analyzed and calculated the calibration precision of the novel calibration method and the existed calibration method .The results show that the precision of the novel calibration method is better than 0 .006mm ,w hich is 5 times~10 times of the existed calibration method , and this precision of the novel calibration method could meet the requirement on the calibration precision of the focal plane position of all the space CCD cameras at this stage .