Channel Error Compensation for Multi-channel SAR Based on Cost Function(in English)
Multi-channel in azimuth is a technique to achieve high-resolution as well as wide-swath in Synthetic Aperture Radar (SAR) systems. Channel error is inevitable in multi-channel systems and it induces blurring in subsequent SAR imagery. Existing compensation approaches are sensitive to system paramet...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
China Science Publishing & Media Ltd. (CSPM)
2014-10-01
|
| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | http://radars.ie.ac.cn/EN/abstract/abstract202.shtml# |
| _version_ | 1797428631442554880 |
|---|---|
| author | Zhang Lei Deng Yun-kai Wang Yu Zheng Shi-chao Yang Liang |
| author_facet | Zhang Lei Deng Yun-kai Wang Yu Zheng Shi-chao Yang Liang |
| author_sort | Zhang Lei |
| collection | DOAJ |
| description | Multi-channel in azimuth is a technique to achieve high-resolution as well as wide-swath in Synthetic Aperture Radar (SAR) systems. Channel error is inevitable in multi-channel systems and it induces blurring in subsequent SAR imagery. Existing compensation approaches are sensitive to system parameters as well as the imaging scenes. Uncertainty of the parameters impacts the validation of these algorithms. In this paper, an improved approach is presented to remove the channel error. Based on the error form, this approach models channel error as three parts: the range gain error, the pulse sampling clock error, and the transmission phase error. The range gain error and the pulse sampling clock error are removed alternately. Then the proposed approach uses cost function to estimate the transmission phase error so that it is independent from the imaging scene. Point target simulations are carried out to investigate the performance, and real data comparison experiments are carried out to verify this approach. |
| first_indexed | 2024-03-09T09:01:40Z |
| format | Article |
| id | doaj.art-f094c1e20ba0478796a70da81ff2908a |
| institution | Directory Open Access Journal |
| issn | 2095-283X 2095-283X |
| language | English |
| last_indexed | 2024-03-09T09:01:40Z |
| publishDate | 2014-10-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-f094c1e20ba0478796a70da81ff2908a2023-12-02T11:30:18ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2095-283X2014-10-013555656410.3724/SP.J.1300.2014.14052Channel Error Compensation for Multi-channel SAR Based on Cost Function(in English)Zhang Lei0Deng Yun-kai1Wang Yu2Zheng Shi-chao3Yang Liang4Institute of Electronics, Chinese Academy of SciencesInstitute of Electronics, Chinese Academy of SciencesInstitute of Electronics, Chinese Academy of SciencesInstitute of Electronics, Chinese Academy of SciencesInstitute of Electronics, Chinese Academy of SciencesMulti-channel in azimuth is a technique to achieve high-resolution as well as wide-swath in Synthetic Aperture Radar (SAR) systems. Channel error is inevitable in multi-channel systems and it induces blurring in subsequent SAR imagery. Existing compensation approaches are sensitive to system parameters as well as the imaging scenes. Uncertainty of the parameters impacts the validation of these algorithms. In this paper, an improved approach is presented to remove the channel error. Based on the error form, this approach models channel error as three parts: the range gain error, the pulse sampling clock error, and the transmission phase error. The range gain error and the pulse sampling clock error are removed alternately. Then the proposed approach uses cost function to estimate the transmission phase error so that it is independent from the imaging scene. Point target simulations are carried out to investigate the performance, and real data comparison experiments are carried out to verify this approach.http://radars.ie.ac.cn/EN/abstract/abstract202.shtml#Synthetic Aperture Radar (SAR)Multi-channelChannel error compensation |
| spellingShingle | Zhang Lei Deng Yun-kai Wang Yu Zheng Shi-chao Yang Liang Channel Error Compensation for Multi-channel SAR Based on Cost Function(in English) Leida xuebao Synthetic Aperture Radar (SAR) Multi-channel Channel error compensation |
| title | Channel Error Compensation for Multi-channel SAR Based on Cost Function(in English) |
| title_full | Channel Error Compensation for Multi-channel SAR Based on Cost Function(in English) |
| title_fullStr | Channel Error Compensation for Multi-channel SAR Based on Cost Function(in English) |
| title_full_unstemmed | Channel Error Compensation for Multi-channel SAR Based on Cost Function(in English) |
| title_short | Channel Error Compensation for Multi-channel SAR Based on Cost Function(in English) |
| title_sort | channel error compensation for multi channel sar based on cost function in english |
| topic | Synthetic Aperture Radar (SAR) Multi-channel Channel error compensation |
| url | http://radars.ie.ac.cn/EN/abstract/abstract202.shtml# |
| work_keys_str_mv | AT zhanglei channelerrorcompensationformultichannelsarbasedoncostfunctioninenglish AT dengyunkai channelerrorcompensationformultichannelsarbasedoncostfunctioninenglish AT wangyu channelerrorcompensationformultichannelsarbasedoncostfunctioninenglish AT zhengshichao channelerrorcompensationformultichannelsarbasedoncostfunctioninenglish AT yangliang channelerrorcompensationformultichannelsarbasedoncostfunctioninenglish |