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Proceedings Paper

Phase calibration for synthetic aperture imaging
Author(s): Changwei Wang; Yuesong Jiang; Yuntao He; Li Liu
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Paper Abstract

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.

Paper Details

Date Published: 13 October 2008
PDF: 5 pages
Proc. SPIE 7128, Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment, 71280F (13 October 2008); doi: 10.1117/12.806451
Show Author Affiliations
Changwei Wang, Beijing Univ. of Aeronautics and Astronautics (China)
Yuesong Jiang, Beijing Univ. of Aeronautics and Astronautics (China)
Yuntao He, Beijing Univ. of Aeronautics and Astronautics (China)
Li Liu, Beijing Univ. of Aeronautics and Astronautics (China)


Published in SPIE Proceedings Vol. 7128:
Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment

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