Cramér-Rao Bound Study of Multiple Scattering Effects in Target Separation Estimation
The information about the distance of separation between two-point targets that is contained in scattering data is explored in the context of the scalar Helmholtz operator via the Fisher information and associated Cramér-Rao bound (CRB) relevant to unbiased target separation estimation. The CRB resu...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2013/572923 |
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| _version_ | 1832564525489979392 |
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| author | Edwin A. Marengo Paul Berestesky |
| author_facet | Edwin A. Marengo Paul Berestesky |
| author_sort | Edwin A. Marengo |
| collection | DOAJ |
| description | The information about the distance of separation between two-point targets that is contained in scattering data is explored in the context of the scalar Helmholtz operator via the Fisher information and associated Cramér-Rao bound (CRB) relevant to unbiased target separation estimation. The CRB results are obtained for the exact multiple scattering model and, for reference, also for the single scattering or Born approximation model applicable to weak scatterers. The effects of the sensing configuration and the scattering parameters in target separation estimation are analyzed. Conditions under which the targets' separation cannot be estimated are discussed for both models. Conditions for multiple scattering to be useful or detrimental to target separation estimation are discussed and illustrated. |
| format | Article |
| id | doaj-art-2b712684aeab4b18a8ce194854c9835f |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-2b712684aeab4b18a8ce194854c9835f2025-02-03T01:10:49ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772013-01-01201310.1155/2013/572923572923Cramér-Rao Bound Study of Multiple Scattering Effects in Target Separation EstimationEdwin A. Marengo0Paul Berestesky1Department of Electrical and Computer Engineering, Northeastern University, Boston, MA 02115, USADepartment of Electrical and Computer Engineering, Northeastern University, Boston, MA 02115, USAThe information about the distance of separation between two-point targets that is contained in scattering data is explored in the context of the scalar Helmholtz operator via the Fisher information and associated Cramér-Rao bound (CRB) relevant to unbiased target separation estimation. The CRB results are obtained for the exact multiple scattering model and, for reference, also for the single scattering or Born approximation model applicable to weak scatterers. The effects of the sensing configuration and the scattering parameters in target separation estimation are analyzed. Conditions under which the targets' separation cannot be estimated are discussed for both models. Conditions for multiple scattering to be useful or detrimental to target separation estimation are discussed and illustrated.http://dx.doi.org/10.1155/2013/572923 |
| spellingShingle | Edwin A. Marengo Paul Berestesky Cramér-Rao Bound Study of Multiple Scattering Effects in Target Separation Estimation International Journal of Antennas and Propagation |
| title | Cramér-Rao Bound Study of Multiple Scattering Effects in Target Separation Estimation |
| title_full | Cramér-Rao Bound Study of Multiple Scattering Effects in Target Separation Estimation |
| title_fullStr | Cramér-Rao Bound Study of Multiple Scattering Effects in Target Separation Estimation |
| title_full_unstemmed | Cramér-Rao Bound Study of Multiple Scattering Effects in Target Separation Estimation |
| title_short | Cramér-Rao Bound Study of Multiple Scattering Effects in Target Separation Estimation |
| title_sort | cramer rao bound study of multiple scattering effects in target separation estimation |
| url | http://dx.doi.org/10.1155/2013/572923 |
| work_keys_str_mv | AT edwinamarengo cramerraoboundstudyofmultiplescatteringeffectsintargetseparationestimation AT paulberestesky cramerraoboundstudyofmultiplescatteringeffectsintargetseparationestimation |