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13 October 2008 Phase calibration for synthetic aperture imaging
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High-resolution imaging can be achieved by optical aperture synthesis. Using a sparse array of smaller aperture, one can synthesize an aperture with the resolution of the equivalent filled aperture while reducing the size and weight of system. The environment and vibration factors of synthetic aperture arrays lead to errors in phase measurement and cause a severe degradation in the image quality. Real time phase calibration of synthetic aperture arrays is very important to produce images of consistently good quality. Redundant spacings calibration allows continuous calibration of the instrument with errors without requiring the model of the source.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Changwei Wang, Yuesong Jiang, Yuntao He, and Li Liu "Phase calibration for synthetic aperture imaging", Proc. SPIE 7128, Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment, 71280F (13 October 2008);

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