Extraction of Weak Scatterer Features Based on Multipath Exploitation in Radar Imagery
We proposed an improved solution to two problems. The first problem is caused by the sidelobe of the dominant scatterer masking a weak scatterer. The proposed solution is to suppress the dominant scatterer by modeling its electromagnetic effects as a secondary source or “extra dependent transmitter”...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2017/5847872 |
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| author | Muhannad Almutiry Lorenzo Lo Monte Michael C. Wicks |
| author_facet | Muhannad Almutiry Lorenzo Lo Monte Michael C. Wicks |
| author_sort | Muhannad Almutiry |
| collection | DOAJ |
| description | We proposed an improved solution to two problems. The first problem is caused by the sidelobe of the dominant scatterer masking a weak scatterer. The proposed solution is to suppress the dominant scatterer by modeling its electromagnetic effects as a secondary source or “extra dependent transmitter” in the measurement domain. The suppression of the domain scatterer reveals the presence of the weak scatterer based on exploitation of multipath effects. The second problem is linearizing the mathematical forward model in the measurement domain. Improving the quantity of the prediction, including multipath scattering effects (neglected under the Born approximation), allows us to solve the inverse problem. The multiple bounce (multipath) scattering effect is the interaction of more than one target in the scene. Modeling reflections from one target towards another as a transmitting dipole will add the multiple scattering effects to the scattering field and permit us to solve a linear inverse problem without sophisticated solutions of a nonlinear matrix in the forward model. Simulation results are presented to validate the concept. |
| format | Article |
| id | doaj-art-4369bb3b2a00469b94f9bedc59fa63d2 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-4369bb3b2a00469b94f9bedc59fa63d22025-02-03T01:32:08ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772017-01-01201710.1155/2017/58478725847872Extraction of Weak Scatterer Features Based on Multipath Exploitation in Radar ImageryMuhannad Almutiry0Lorenzo Lo Monte1Michael C. Wicks2Electrical Engineering Department, Northern Border University, Arar, Saudi ArabiaElectrical and Computer Engineering Department, University of Dayton, Dayton, OH, USAElectrical and Computer Engineering Department, University of Dayton, Dayton, OH, USAWe proposed an improved solution to two problems. The first problem is caused by the sidelobe of the dominant scatterer masking a weak scatterer. The proposed solution is to suppress the dominant scatterer by modeling its electromagnetic effects as a secondary source or “extra dependent transmitter” in the measurement domain. The suppression of the domain scatterer reveals the presence of the weak scatterer based on exploitation of multipath effects. The second problem is linearizing the mathematical forward model in the measurement domain. Improving the quantity of the prediction, including multipath scattering effects (neglected under the Born approximation), allows us to solve the inverse problem. The multiple bounce (multipath) scattering effect is the interaction of more than one target in the scene. Modeling reflections from one target towards another as a transmitting dipole will add the multiple scattering effects to the scattering field and permit us to solve a linear inverse problem without sophisticated solutions of a nonlinear matrix in the forward model. Simulation results are presented to validate the concept.http://dx.doi.org/10.1155/2017/5847872 |
| spellingShingle | Muhannad Almutiry Lorenzo Lo Monte Michael C. Wicks Extraction of Weak Scatterer Features Based on Multipath Exploitation in Radar Imagery International Journal of Antennas and Propagation |
| title | Extraction of Weak Scatterer Features Based on Multipath Exploitation in Radar Imagery |
| title_full | Extraction of Weak Scatterer Features Based on Multipath Exploitation in Radar Imagery |
| title_fullStr | Extraction of Weak Scatterer Features Based on Multipath Exploitation in Radar Imagery |
| title_full_unstemmed | Extraction of Weak Scatterer Features Based on Multipath Exploitation in Radar Imagery |
| title_short | Extraction of Weak Scatterer Features Based on Multipath Exploitation in Radar Imagery |
| title_sort | extraction of weak scatterer features based on multipath exploitation in radar imagery |
| url | http://dx.doi.org/10.1155/2017/5847872 |
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