A new autofocus based on sub-aperture approach

Koo, V. C. and Chan, Y. K. and Chuah, H. T. (2005) A new autofocus based on sub-aperture approach. Journal of Electromagnetic Waves and Applications, 19 (11). pp. 1547-1561. ISSN 0920-5071

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Official URL: http://www.tandfonline.com/doi/abs/10.1163/1569393...

Abstract

High resolution Synthetic Aperture Radar (SAR) requires the motion of radar platform to be known accurately for precise phase error detection. In SAR processing, autofocus technique is commonly used to estimate the phase errors from the radar data. This paper highlights a novel autofocus algorithm based on subaperture approach, called the Non-overlapping Sub-aperture Autofocus (NSA). As compared to existing autofocus algorithms, the NSA is a computational efficient algorithm that allows the use of dedicated processing unit for real-time implementation. The working principles of the NSA algorithm and its simulation results are outlined in this pape

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering and Technology (FET)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 23 Aug 2011 02:07
Last Modified: 26 Nov 2013 01:36
URI: http://shdl.mmu.edu.my/id/eprint/2357

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