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为了降低星载成像光谱仪对探测器帧频的要求,提高成像光谱仪对某些特定暗目标的观测能力,建立了星载成像光谱仪运动补偿数学模型并提出了工程计算实现方法。介绍了成像光谱仪运动补偿原理,然后按成像光谱仪像面上像移为匀速度补偿的方式建立运动补偿数学模型,给出了不同积分倍数下一次成像的最大观测时间和最大观测距离。指出了实现理论运动补偿曲线的最优工程计算方法。
In order to reduce the frame rate of the spaceborne imaging spectrometer and improve the observational ability of the imaging spectrometer to certain dark targets, a mathematical model of motion compensation of the spaceborne imaging spectrometer is set up and the engineering calculation method is put forward. The principle of motion compensation of imaging spectrometer is introduced. Then, a mathematical model of motion compensation is established according to the compensation of image shift on the image plane of the imaging spectrometer. The maximum observation time and the maximum observation distance of the next imaging with different integral multiples are given. The optimal engineering calculation method for realizing theoretical motion compensation curve is pointed out.