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24 January 2008 A method for measuring modulation transfer function of CCD device in remote camera with grating pattern
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Abstract
The remote camera that is developed by us is the exclusive functional load of a micro-satellite. Modulation transfer function (MTF) is a direct and accurate parameter to evaluate the system performance of a remote camera, and the MTF of a camera is jointly decided by the MTF of camera lens and its CCD device. The MTF of the camera lens can be tested directly with commercial optical system testing instrument, but it is indispensable to measure the MTF of the CCD device accurately before setting up the whole camera to evaluate the performance of the whole camera in advance. Compared with other existed MTF measuring methods, this method using grating pattern requires less equipment and simpler arithmetic. Only one complete scan of the grating pattern and later data processing and interpolation are needed to get the continuous MTF curves of the whole camera and its CCD device. High-precision optical system testing instrument guarantees the precision of this indirect measuring method. This indirect method to measure MTF is of reference use for the method of testing MTF of electronic device and for gaining MTF indirectly from corresponding CTF.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuheng Chen, Xinhua Chen, and Weimin Shen "A method for measuring modulation transfer function of CCD device in remote camera with grating pattern", Proc. SPIE 6829, Advanced Materials and Devices for Sensing and Imaging III, 68291B (24 January 2008); https://doi.org/10.1117/12.754829
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