Multi-Coset Sparse Imaging Arrays
We develop an efficient structured sparse antenna array architecture for coherent imaging of sparse but otherwise unknown scenes. In this architecture, the array elements are configured in a periodic nonuniform pattern that can be viewed as the superposition of multiple sparse uniform subarrays. For...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers (IEEE)
2014
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| Online Access: | http://hdl.handle.net/1721.1/91092 https://orcid.org/0000-0001-9166-4758 |
| _version_ | 1826205655878336512 |
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| author | Krieger, James D. Kochman, Yuval Wornell, Gregory W. |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Krieger, James D. Kochman, Yuval Wornell, Gregory W. |
| author_sort | Krieger, James D. |
| collection | MIT |
| description | We develop an efficient structured sparse antenna array architecture for coherent imaging of sparse but otherwise unknown scenes. In this architecture, the array elements are configured in a periodic nonuniform pattern that can be viewed as the superposition of multiple sparse uniform subarrays. For such structure, we develop an efficient pattern design procedure using co-array analysis, and we describe robust and efficient algorithms implementing the required associated array processing, which comprise scene support recovery, followed by image reconstruction. In addition, we develop a practical method for detecting reconstruction failures when the scene density exceeds the level for which the array was designed, so that false images are not produced. As a demonstration of its viability, the architecture is used to reconstruct a simulated natural scene. |
| first_indexed | 2024-09-23T13:16:32Z |
| format | Article |
| id | mit-1721.1/91092 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:16:32Z |
| publishDate | 2014 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| record_format | dspace |
| spelling | mit-1721.1/910922022-09-28T13:04:53Z Multi-Coset Sparse Imaging Arrays Krieger, James D. Kochman, Yuval Wornell, Gregory W. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Krieger, James D. Wornell, Gregory W. We develop an efficient structured sparse antenna array architecture for coherent imaging of sparse but otherwise unknown scenes. In this architecture, the array elements are configured in a periodic nonuniform pattern that can be viewed as the superposition of multiple sparse uniform subarrays. For such structure, we develop an efficient pattern design procedure using co-array analysis, and we describe robust and efficient algorithms implementing the required associated array processing, which comprise scene support recovery, followed by image reconstruction. In addition, we develop a practical method for detecting reconstruction failures when the scene density exceeds the level for which the array was designed, so that false images are not produced. As a demonstration of its viability, the architecture is used to reconstruct a simulated natural scene. National Science Foundation (U.S.) (Grant CCF-1017772) Semiconductor Research Corporation. Center for Circuits and Systems Solutions United States. Air Force (Contract FA8721-05-C-0002) 2014-10-21T17:25:37Z 2014-10-21T17:25:37Z 2014-01 2013-06 Article http://purl.org/eprint/type/JournalArticle 0018-926X 1558-2221 http://hdl.handle.net/1721.1/91092 Krieger, James D., Yuval Kochman, and Gregory W. Wornell. “Multi-Coset Sparse Imaging Arrays.” IEEE Trans. Antennas Propagat. 62, no. 4 (n.d.): 1701–1715. https://orcid.org/0000-0001-9166-4758 en_US http://dx.doi.org/10.1109/tap.2014.2299819 IEEE Transactions on Antennas and Propagation Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) MIT web domain |
| spellingShingle | Krieger, James D. Kochman, Yuval Wornell, Gregory W. Multi-Coset Sparse Imaging Arrays |
| title | Multi-Coset Sparse Imaging Arrays |
| title_full | Multi-Coset Sparse Imaging Arrays |
| title_fullStr | Multi-Coset Sparse Imaging Arrays |
| title_full_unstemmed | Multi-Coset Sparse Imaging Arrays |
| title_short | Multi-Coset Sparse Imaging Arrays |
| title_sort | multi coset sparse imaging arrays |
| url | http://hdl.handle.net/1721.1/91092 https://orcid.org/0000-0001-9166-4758 |
| work_keys_str_mv | AT kriegerjamesd multicosetsparseimagingarrays AT kochmanyuval multicosetsparseimagingarrays AT wornellgregoryw multicosetsparseimagingarrays |