NDLI: SAR real time motion compensation: average cancellation method for aircraft

Content Provider	IEEE Xplore Digital Library
Author	Zhang, C.B. Yeo, T.S. Kooi, P.S. Lu, Y.H. Deng, L.P. Tsao, C.
Copyright Year	1994
Description	Author affiliation: Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore (Zhang, C.B.; Yeo, T.S.; Kooi, P.S.; Lu, Y.H.; Deng, L.P.; Tsao, C.)
Abstract	Effective motion compensation is the key for achieving high quality SAR images. A frequency domain method which is based on an analysis of the azimuth spectrum of SAR raw data to extract aircraft's motion-error, has the advantage of having the ability to operate without accelerometer and INS. However, an antenna with a wide azimuth beam is required. Furthermore,its accuracy depends heavily on the contrast of the ground reflectivity function. A new method based on the time domain approach is presented. Compared with the existing method, the new approach not only has all the mentioned features, but also the advantages of low computation requirement as well as the wide-band motion-error extraction capability. Furthermore, it relaxes some requirements on azimuth antenna beamwidth as well as the ground reflectivity function contrast.<>
Starting Page	29
Ending Page	34
File Size	281587
Page Count	6
File Format	PDF
ISBN	0780320468
DOI	10.1109/ICCS.1994.474113
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-11-14
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Motion compensation Azimuth Reflectivity Frequency domain analysis Image motion analysis Data mining Aircraft Motion analysis Accelerometers Wideband
Content Type	Text
Resource Type	Article

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