A new data acquisition and processing system for UAVSAR
Synthetic Aperture Radar (SAR) is widely known as a high resolution imaging system in microwave remote sensing. Large number of frequency-modulated received echoes must be acquired in real time. A typical SAR data acquisition unit (DAQ) involves high speed analog-to-digital conversion, front-end pre...
| Main Authors: | , , , , , |
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| Format: | Article |
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2011
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| Online Access: | http://shdl.mmu.edu.my/3335/ |
| _version_ | 1848790299236630528 |
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| author | Lim, Chot Hun Lim, Chee Siong Chua, Ming Yam Chan, Yee Kit Lim, Tien Sze Koo, Voon Chet |
| author_facet | Lim, Chot Hun Lim, Chee Siong Chua, Ming Yam Chan, Yee Kit Lim, Tien Sze Koo, Voon Chet |
| author_sort | Lim, Chot Hun |
| building | MMU Institutional Repository |
| collection | Online Access |
| description | Synthetic Aperture Radar (SAR) is widely known as a high resolution imaging system in microwave remote sensing. Large number of frequency-modulated received echoes must be acquired in real time. A typical SAR data acquisition unit (DAQ) involves high speed analog-to-digital conversion, front-end pre-processing, and data recording. Subsequent processes consist of computationally intensive digital signal processing for image formation. In this paper, an efficient data acquisition and SAR processing method is proposed. It is based on a modified discrete Fourier Transform algorithm, which requires lesser system's computational load as compared to conventional Fast Fourier Transform. The proposed system has been implemented on an UAVSAR (Unmanned Aerial Vehicle SAR) and the flight tests have shown promising results for real-time imaging. |
| first_indexed | 2025-11-14T18:10:24Z |
| format | Article |
| id | mmu-3335 |
| institution | Multimedia University |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:10:24Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | mmu-33352012-01-05T07:35:28Z http://shdl.mmu.edu.my/3335/ A new data acquisition and processing system for UAVSAR Lim, Chot Hun Lim, Chee Siong Chua, Ming Yam Chan, Yee Kit Lim, Tien Sze Koo, Voon Chet TA Engineering (General). Civil engineering (General) Synthetic Aperture Radar (SAR) is widely known as a high resolution imaging system in microwave remote sensing. Large number of frequency-modulated received echoes must be acquired in real time. A typical SAR data acquisition unit (DAQ) involves high speed analog-to-digital conversion, front-end pre-processing, and data recording. Subsequent processes consist of computationally intensive digital signal processing for image formation. In this paper, an efficient data acquisition and SAR processing method is proposed. It is based on a modified discrete Fourier Transform algorithm, which requires lesser system's computational load as compared to conventional Fast Fourier Transform. The proposed system has been implemented on an UAVSAR (Unmanned Aerial Vehicle SAR) and the flight tests have shown promising results for real-time imaging. 2011-10-25 Article PeerReviewed Lim, Chot Hun and Lim, Chee Siong and Chua, Ming Yam and Chan, Yee Kit and Lim, Tien Sze and Koo, Voon Chet (2011) A new data acquisition and processing system for UAVSAR. IEICE Electronics Express, 8 (20). pp. 1716-1722. ISSN 1349-2543 http://dx.doi.org/10.1587/elex.8.1716 doi:10.1587/elex.8.1716 doi:10.1587/elex.8.1716 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Lim, Chot Hun Lim, Chee Siong Chua, Ming Yam Chan, Yee Kit Lim, Tien Sze Koo, Voon Chet A new data acquisition and processing system for UAVSAR |
| title | A new data acquisition and processing system for UAVSAR |
| title_full | A new data acquisition and processing system for UAVSAR |
| title_fullStr | A new data acquisition and processing system for UAVSAR |
| title_full_unstemmed | A new data acquisition and processing system for UAVSAR |
| title_short | A new data acquisition and processing system for UAVSAR |
| title_sort | new data acquisition and processing system for uavsar |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://shdl.mmu.edu.my/3335/ http://shdl.mmu.edu.my/3335/ http://shdl.mmu.edu.my/3335/ |