A real-time hybrid correlator for synthetic aperture radar signal processing
Synthetic Aperture Radar (SAR) image formation is based on a coherent processing approach to build a long azimuth synthetic aperture. Due to the curvature and the range variance of the azimuth modulation, SAR image formation is inherently a two dimensional process. Two key elements in designing a di...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
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2007
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| Online Access: | http://shdl.mmu.edu.my/3231/ |
| _version_ | 1848790270615748608 |
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| author | Koo, V. C. Chan, Y. K. Lim, T. S. |
| author_facet | Koo, V. C. Chan, Y. K. Lim, T. S. |
| author_sort | Koo, V. C. |
| building | MMU Institutional Repository |
| collection | Online Access |
| description | Synthetic Aperture Radar (SAR) image formation is based on a coherent processing approach to build a long azimuth synthetic aperture. Due to the curvature and the range variance of the azimuth modulation, SAR image formation is inherently a two dimensional process. Two key elements in designing a digital SAR processor are the processing speed and memory requirements. For real-time SAR processing, the high computational requirements cannot be provided by a sequential processor system. In this paper, a new real-time SAR processor based on sub-aperture processing approach is presented. This scheme, called the Real-Time Hybrid Correlator (RTHC), achieves range correlation in frequency domain, followed by azimuth correlation in time domain. The proposed RTHC is a computationally efficient scheme without the need of corner-turn memory. Due to its distributed architecture, dedicated parallel processors can be employed for real-time processing. |
| first_indexed | 2025-11-14T18:09:57Z |
| format | Conference or Workshop Item |
| id | mmu-3231 |
| institution | Multimedia University |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:09:57Z |
| publishDate | 2007 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | mmu-32312011-10-12T08:16:12Z http://shdl.mmu.edu.my/3231/ A real-time hybrid correlator for synthetic aperture radar signal processing Koo, V. C. Chan, Y. K. Lim, T. S. T Technology (General) QA75.5-76.95 Electronic computers. Computer science Synthetic Aperture Radar (SAR) image formation is based on a coherent processing approach to build a long azimuth synthetic aperture. Due to the curvature and the range variance of the azimuth modulation, SAR image formation is inherently a two dimensional process. Two key elements in designing a digital SAR processor are the processing speed and memory requirements. For real-time SAR processing, the high computational requirements cannot be provided by a sequential processor system. In this paper, a new real-time SAR processor based on sub-aperture processing approach is presented. This scheme, called the Real-Time Hybrid Correlator (RTHC), achieves range correlation in frequency domain, followed by azimuth correlation in time domain. The proposed RTHC is a computationally efficient scheme without the need of corner-turn memory. Due to its distributed architecture, dedicated parallel processors can be employed for real-time processing. 2007-03 Conference or Workshop Item NonPeerReviewed Koo, V. C. and Chan, Y. K. and Lim, T. S. (2007) A real-time hybrid correlator for synthetic aperture radar signal processing. In: Progress in Electromagnetics Research Symposium (PIERS 2007), 26-30 MAR 2007, Beijing, PEOPLES R CHINA. http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=V2namOAJkanAEgD@AON&page=125&doc=1246 |
| spellingShingle | T Technology (General) QA75.5-76.95 Electronic computers. Computer science Koo, V. C. Chan, Y. K. Lim, T. S. A real-time hybrid correlator for synthetic aperture radar signal processing |
| title | A real-time hybrid correlator for synthetic aperture radar signal processing |
| title_full | A real-time hybrid correlator for synthetic aperture radar signal processing |
| title_fullStr | A real-time hybrid correlator for synthetic aperture radar signal processing |
| title_full_unstemmed | A real-time hybrid correlator for synthetic aperture radar signal processing |
| title_short | A real-time hybrid correlator for synthetic aperture radar signal processing |
| title_sort | real-time hybrid correlator for synthetic aperture radar signal processing |
| topic | T Technology (General) QA75.5-76.95 Electronic computers. Computer science |
| url | http://shdl.mmu.edu.my/3231/ http://shdl.mmu.edu.my/3231/ |