离散光电成像系统因其不再具有平移不变特性，它的调制传递函数测试具有相当的复杂性和不稳定性。
The measurement of modulation transfer function (MTF) of the sampled imaging optoelectronic system is rather complex and irrepeatable for their shift-variant characteristics.
建立了某光电仿真系统的调制传递函数(MTF)评测系统，系统采用频谱对比法测试了仿真系统的MTF。
A system was set up to test the modulation transfer function (MTF) of a photoelectric simulation system. The method used the ratio of magnitude of the output image to the input image.
本文论证了利用CCD测定X射线胶片和增感屏调制传递函数的可行性，并给出了一种适用于CCD测试数据的处理方法。
It is feasible that to use CCD device and image processing system in measurement of the modulation transfer function (MTF) of X-ray film and luminescent screen.
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