Maneuvering target imaging and scaling by using sparse inverse synthetic aperture
In recent years, there have been increasing interests in addressing the issue of high-resolution inverse synthetic aperture radar (ISAR) imaging from sparse aperture (SA) data. The non-uniform rotation property of maneuvering target introduces non-stationary echo modulation to exhibit two-dimensiona...
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| Formatua: | Journal Article |
| Hizkuntza: | English |
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2017
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| Sarrera elektronikoa: | https://hdl.handle.net/10356/86054 http://hdl.handle.net/10220/43926 |
| _version_ | 1826119028064649216 |
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| author | Xu, Gang Yang, Lei Bi, Guoan Xing, Mengdao |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Xu, Gang Yang, Lei Bi, Guoan Xing, Mengdao |
| author_sort | Xu, Gang |
| collection | NTU |
| description | In recent years, there have been increasing interests in addressing the issue of high-resolution inverse synthetic aperture radar (ISAR) imaging from sparse aperture (SA) data. The non-uniform rotation property of maneuvering target introduces non-stationary echo modulation to exhibit two-dimensional (2-D) migration through resolution cells (MTRC), which increases the difficulty of SA-ISAR imaging. In this paper, we focus on ISAR imaging and scaling of maneuvering target for effective MTRC correction and SA synthesis. Under a scaled non-uniform Fourier dictionary to include MTRC, SA maneuvering target imaging is formatted as sparse representation with maximum a posterior (MAP) estimation. Then, sparse ISAR imaging joint with parameter estimation is solved by using a two-step procedure. The estimated rational parameters are used to rescale the reconstructed ISAR image to extract the 2-D target geometry. Finally, the experiments based on simulated and measured data are performed to confirm the effectiveness of the proposed algorithm. |
| first_indexed | 2024-10-01T04:53:20Z |
| format | Journal Article |
| id | ntu-10356/86054 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:53:20Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-10356/860542020-03-07T13:56:08Z Maneuvering target imaging and scaling by using sparse inverse synthetic aperture Xu, Gang Yang, Lei Bi, Guoan Xing, Mengdao School of Electrical and Electronic Engineering Inverse Synthetic Aperture Radar (ISAR) Sparse Aperture (SA) In recent years, there have been increasing interests in addressing the issue of high-resolution inverse synthetic aperture radar (ISAR) imaging from sparse aperture (SA) data. The non-uniform rotation property of maneuvering target introduces non-stationary echo modulation to exhibit two-dimensional (2-D) migration through resolution cells (MTRC), which increases the difficulty of SA-ISAR imaging. In this paper, we focus on ISAR imaging and scaling of maneuvering target for effective MTRC correction and SA synthesis. Under a scaled non-uniform Fourier dictionary to include MTRC, SA maneuvering target imaging is formatted as sparse representation with maximum a posterior (MAP) estimation. Then, sparse ISAR imaging joint with parameter estimation is solved by using a two-step procedure. The estimated rational parameters are used to rescale the reconstructed ISAR image to extract the 2-D target geometry. Finally, the experiments based on simulated and measured data are performed to confirm the effectiveness of the proposed algorithm. MOE (Min. of Education, S’pore) 2017-10-19T03:09:17Z 2019-12-06T16:15:09Z 2017-10-19T03:09:17Z 2019-12-06T16:15:09Z 2017 Journal Article Xu, G., Yang, L., Bi, G., & Xing, M. (2017). Maneuvering target imaging and scaling by using sparse inverse synthetic aperture. Signal Processing, 137, 149-159. 0165-1684 https://hdl.handle.net/10356/86054 http://hdl.handle.net/10220/43926 10.1016/j.sigpro.2017.01.016 en Signal Processing © 2017 Elsevier B.V. |
| spellingShingle | Inverse Synthetic Aperture Radar (ISAR) Sparse Aperture (SA) Xu, Gang Yang, Lei Bi, Guoan Xing, Mengdao Maneuvering target imaging and scaling by using sparse inverse synthetic aperture |
| title | Maneuvering target imaging and scaling by using sparse inverse synthetic aperture |
| title_full | Maneuvering target imaging and scaling by using sparse inverse synthetic aperture |
| title_fullStr | Maneuvering target imaging and scaling by using sparse inverse synthetic aperture |
| title_full_unstemmed | Maneuvering target imaging and scaling by using sparse inverse synthetic aperture |
| title_short | Maneuvering target imaging and scaling by using sparse inverse synthetic aperture |
| title_sort | maneuvering target imaging and scaling by using sparse inverse synthetic aperture |
| topic | Inverse Synthetic Aperture Radar (ISAR) Sparse Aperture (SA) |
| url | https://hdl.handle.net/10356/86054 http://hdl.handle.net/10220/43926 |
| work_keys_str_mv | AT xugang maneuveringtargetimagingandscalingbyusingsparseinversesyntheticaperture AT yanglei maneuveringtargetimagingandscalingbyusingsparseinversesyntheticaperture AT biguoan maneuveringtargetimagingandscalingbyusingsparseinversesyntheticaperture AT xingmengdao maneuveringtargetimagingandscalingbyusingsparseinversesyntheticaperture |