18 November 2014 An integrated method of measuring wave-front aberrations and optical axis jitters of space camera
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Abstract
The image quality of a high resolution space camera may be degraded by wavefront aberrations and optical axis jitters. It is desirable to use an in-orbit instrument to measure these errors and then correct them with on-line adaptive optical technologies or off-line image restoration algorithms. An integrated method of measuring wavefront aberrations and optical axis jitters of the space camera based on the ground scene Shack-Hartmann wavefront sensor is studied. When working in jitter-sensing mode, only parts of the sub-images are read to enhance the frame rate. Factors affect the precision are analyzed. Experiments are made which show that this method has a good performance by choosing proper parameters.
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Humei Wang, Humei Wang, Shitao Wang, Shitao Wang, Xinqi Hu, Xinqi Hu, Qianqian Sun, Qianqian Sun, } "An integrated method of measuring wave-front aberrations and optical axis jitters of space camera", Proc. SPIE 9299, International Symposium on Optoelectronic Technology and Application 2014: Optical Remote Sensing Technology and Applications, 92990Y (18 November 2014); doi: 10.1117/12.2072598; https://doi.org/10.1117/12.2072598
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