Traveling Wave Scattering Center Model and Its Applications to ISAR Imaging
| Autor: | Yan-Xi Chen, Xin-Qing Sheng, Kun-Yi Guo, Xiao-Tong Zhao |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Scattering Acoustics 020206 networking & telecommunications 02 engineering and technology Traveling-wave antenna Polarization (waves) law.invention Inverse synthetic aperture radar Scattering amplitude Position (vector) law Surface wave 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Radar |
| Zdroj: | IEEE Transactions on Antennas and Propagation. 69:2437-2442 |
| ISSN: | 1558-2221 0018-926X |
| Popis: | Traveling waves can be supported by long, smooth surfaces under horizontal polarization, such as the wings or bodies of aircraft. A 3-D scattering center (SC) model for traveling waves is proposed in this work. The equivalent location of the SC and the dependence function of scattering amplitude on aspect angles is derived based on traveling wave antenna theory and modified according to real scattering characteristics. Chamber-measured data and full-wave numerical results of a series of geometries are presented to verify the validity of this model in imaging simulation. We find that the equivalent position of this SC is located along a circular arc. In consideration of its polarization characteristics and inverse synthetic aperture radar (ISAR) image signatures, the proposed SC model is promising for used in the model-based automatic target recognition (ATR) to distinguish traveling waves from other scattering components. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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