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基于Shannon公式,提出了一种综合评价航天相机性能的新判据。给出了用系统的调制传递函数(MTF)与信噪比(SNR)的乘积大于或等于9来综合评价航天相机性能的方法。该方法为航天高分辨率相机的研制提供了参考。由于这个结论没有针对具体的相机,因而具有普遍的意义。
Based on the Shannon formula, a new criterion for comprehensively evaluating the performance of a space camera is proposed. A method of synthetically evaluating the performance of a space camera with the product of the system modulation transfer function (MTF) and the signal-to-noise ratio (SNR) greater than or equal to 9 is given. This method provides a reference for the development of aerospace high-resolution camera. Since this conclusion is not specific to the camera, it has universal significance.