Special MISO-SAR and MIMO-SAR Modes for Bidirectional Imaging
The paper proposes special multiple-input single-output synthetic aperture radar (MISO-SAR) and multiple-input multiple-output SAR (MIMO-SAR) for bidirectional imaging, which can simultaneously illuminate two areas from different directions in azimuth. For the proposed MISO-SAR, two subpulses with t...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2014/320384 |
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| _version_ | 1832566994479611904 |
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| author | Hai Jiang Hongjun Song Lei Guo Wei Wang |
| author_facet | Hai Jiang Hongjun Song Lei Guo Wei Wang |
| author_sort | Hai Jiang |
| collection | DOAJ |
| description | The paper proposes special multiple-input single-output synthetic aperture radar (MISO-SAR) and multiple-input multiple-output SAR (MIMO-SAR) for bidirectional imaging, which can simultaneously illuminate two areas from different directions in azimuth. For the proposed MISO-SAR, two subpulses with the same carrier frequency and phase coding are transmitted with different azimuth directions by switching the phase coefficients in the transmit modules, and echoes corresponding to the subpulses are received by the main lobe and the first grating lobe of the whole antenna. To suppress mutual interference, the two subpulses are transmitted with different range-frequency bands, and their echoes are demodulated and recorded in different channels in the proposed MIMO-SAR. This paper presents the system design of these modes and analyzes their azimuth ambiguity to signal ratio (AASR). Besides, simulation results on points are carried out to validate the proposed bidirectional imaging modes. |
| format | Article |
| id | doaj-art-cdcc51ba523d4c7b94feea2d66f4e0ff |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-cdcc51ba523d4c7b94feea2d66f4e0ff2025-02-03T01:02:36ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772014-01-01201410.1155/2014/320384320384Special MISO-SAR and MIMO-SAR Modes for Bidirectional ImagingHai Jiang0Hongjun Song1Lei Guo2Wei Wang3Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Electronics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Electronics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Electronics, Chinese Academy of Sciences, Beijing 100190, ChinaThe paper proposes special multiple-input single-output synthetic aperture radar (MISO-SAR) and multiple-input multiple-output SAR (MIMO-SAR) for bidirectional imaging, which can simultaneously illuminate two areas from different directions in azimuth. For the proposed MISO-SAR, two subpulses with the same carrier frequency and phase coding are transmitted with different azimuth directions by switching the phase coefficients in the transmit modules, and echoes corresponding to the subpulses are received by the main lobe and the first grating lobe of the whole antenna. To suppress mutual interference, the two subpulses are transmitted with different range-frequency bands, and their echoes are demodulated and recorded in different channels in the proposed MIMO-SAR. This paper presents the system design of these modes and analyzes their azimuth ambiguity to signal ratio (AASR). Besides, simulation results on points are carried out to validate the proposed bidirectional imaging modes.http://dx.doi.org/10.1155/2014/320384 |
| spellingShingle | Hai Jiang Hongjun Song Lei Guo Wei Wang Special MISO-SAR and MIMO-SAR Modes for Bidirectional Imaging International Journal of Antennas and Propagation |
| title | Special MISO-SAR and MIMO-SAR Modes for Bidirectional Imaging |
| title_full | Special MISO-SAR and MIMO-SAR Modes for Bidirectional Imaging |
| title_fullStr | Special MISO-SAR and MIMO-SAR Modes for Bidirectional Imaging |
| title_full_unstemmed | Special MISO-SAR and MIMO-SAR Modes for Bidirectional Imaging |
| title_short | Special MISO-SAR and MIMO-SAR Modes for Bidirectional Imaging |
| title_sort | special miso sar and mimo sar modes for bidirectional imaging |
| url | http://dx.doi.org/10.1155/2014/320384 |
| work_keys_str_mv | AT haijiang specialmisosarandmimosarmodesforbidirectionalimaging AT hongjunsong specialmisosarandmimosarmodesforbidirectionalimaging AT leiguo specialmisosarandmimosarmodesforbidirectionalimaging AT weiwang specialmisosarandmimosarmodesforbidirectionalimaging |