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光电成象系统涉及空间和时间上的积分和抽样．本文从理论上研究了光电成象系统中的抽样的空间积分效应和前置光学滤波的影响．结果发现前置光学滤波可以等效为抽样象元的空间积分抽样效应．这一原理对设计光电成象系统具有指导意义．利用这一原理也可以改善光电成象系统获取图象的质量．
Photoelectric imaging systems involve both spatial and temporal integration and sampling. In this paper, the spatial integration effect of sampling and the influence of pre-optics filtering in optoelectronic imaging system are theoretically studied. The results show that pre-optics filtering can be equivalent to the sampling effect of sampling pixel space integrals. This principle is of guiding significance for the design of a photoelectric imaging system. Using this principle can also improve the quality of the image obtained by the electro-optical imaging system.