A new autofocus based on sub-aperture approach
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 b...
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| Format: | Article |
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Taylor & Francis Group
2005
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| Online Access: | http://shdl.mmu.edu.my/2357/ |
| _version_ | 1848790034210095104 |
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| author | Koo, V. C. Chan, Y. K. Chuah, H. T. |
| author_facet | Koo, V. C. Chan, Y. K. Chuah, H. T. |
| author_sort | Koo, V. C. |
| building | MMU Institutional Repository |
| collection | Online Access |
| description | 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 |
| first_indexed | 2025-11-14T18:06:11Z |
| format | Article |
| id | mmu-2357 |
| institution | Multimedia University |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:06:11Z |
| publishDate | 2005 |
| publisher | Taylor & Francis Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | mmu-23572013-11-26T01:36:33Z http://shdl.mmu.edu.my/2357/ A new autofocus based on sub-aperture approach Koo, V. C. Chan, Y. K. Chuah, H. T. TA Engineering (General). Civil engineering (General) 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 Taylor & Francis Group 2005 Article NonPeerReviewed 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 http://www.tandfonline.com/doi/abs/10.1163/156939305775701912#.UpP5wPud19o doi:10.1163/156939305775701912 doi:10.1163/156939305775701912 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Koo, V. C. Chan, Y. K. Chuah, H. T. A new autofocus based on sub-aperture approach |
| title | A new autofocus based on sub-aperture approach |
| title_full | A new autofocus based on sub-aperture approach |
| title_fullStr | A new autofocus based on sub-aperture approach |
| title_full_unstemmed | A new autofocus based on sub-aperture approach |
| title_short | A new autofocus based on sub-aperture approach |
| title_sort | new autofocus based on sub-aperture approach |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://shdl.mmu.edu.my/2357/ http://shdl.mmu.edu.my/2357/ http://shdl.mmu.edu.my/2357/ |