A data compression technique for scattered fields from complex targets
A data compression technique to efficiently compress the scattered fields from complex targets is presented. Since at high frequencies the scattered fields from complex radar targets exhibit a highly localized behavior, the data compression technique is based on extracting and then sampling the resp...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 1997-08, Vol.45 (8), p.1245-1251 |
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| container_end_page | 1251 |
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| container_title | IEEE transactions on antennas and propagation |
| container_volume | 45 |
| creator | Chang, L.-C.T. Gupta, I.J. Burnside, W.D. Chang, C.-L.T. |
| description | A data compression technique to efficiently compress the scattered fields from complex targets is presented. Since at high frequencies the scattered fields from complex radar targets exhibit a highly localized behavior, the data compression technique is based on extracting and then sampling the responses associated with individual scattering mechanisms. The compression technique preserves the angle as well as the frequency variation of individual scattering mechanisms and, thus, leads to small reconstruction error. The proposed technique, however, is a lossy process in the sense that a tradeoff exists between the compression ratio and the data reconstruction error. The smaller the data reconstruction error, the smaller the compression ratio. The effectiveness of the technique is demonstrated by compressing measured scattered fields of a complex target. |
| doi_str_mv | 10.1109/8.611243 |
| format | Article |
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Since at high frequencies the scattered fields from complex radar targets exhibit a highly localized behavior, the data compression technique is based on extracting and then sampling the responses associated with individual scattering mechanisms. The compression technique preserves the angle as well as the frequency variation of individual scattering mechanisms and, thus, leads to small reconstruction error. The proposed technique, however, is a lossy process in the sense that a tradeoff exists between the compression ratio and the data reconstruction error. The smaller the data reconstruction error, the smaller the compression ratio. 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Since at high frequencies the scattered fields from complex radar targets exhibit a highly localized behavior, the data compression technique is based on extracting and then sampling the responses associated with individual scattering mechanisms. The compression technique preserves the angle as well as the frequency variation of individual scattering mechanisms and, thus, leads to small reconstruction error. The proposed technique, however, is a lossy process in the sense that a tradeoff exists between the compression ratio and the data reconstruction error. The smaller the data reconstruction error, the smaller the compression ratio. The effectiveness of the technique is demonstrated by compressing measured scattered fields of a complex target.</abstract><pub>IEEE</pub><doi>10.1109/8.611243</doi><tpages>7</tpages></addata></record> |
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| ispartof | IEEE transactions on antennas and propagation, 1997-08, Vol.45 (8), p.1245-1251 |
| issn | 0018-926X 1558-2221 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_26519969 |
| source | IEEE Electronic Library (IEL) |
| subjects | Data compression Data mining Electromagnetic scattering Focusing Frequency Image coding Polarization Radar imaging Radar scattering Sampling methods |
| title | A data compression technique for scattered fields from complex targets |
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