Name
Abstract | ||
|---|---|---|
Ionospheric Faraday rotation (FR) introduces polarimetric distortion to trans-ionosphere signals. Spaceborne low-frequency wide-bandwidth synthetic aperture radar (SAR) signals may be distorted by FR effect because it is highly dispersive. Ionospheric polarimetric dispersion (PD) effects on spaceborne SAR imaging are modeled and analyzed. PD effect is included in polarimetric SAR system impulse response matrices. In particular, PD effects on linearly polarized and circularly polarized SAR systems are analyzed by system impulse response matrices. Theoretically, PD will introduce amplitude modulation to SAR spectrums and hence distort linearly polarized SAR imaging; for circularly polarized systems, it introduces relative image shift and phase errors between images of different channels. Numerical evaluations and simulations show that PD effects will introduce noticeable effects on future P-band wide-bandwidth SAR systems. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/LGRS.2014.2323232 | IEEE Geosci. Remote Sensing Lett. |
Keywords | Field | DocType |
trans-ionosphere signals,polarimetric dispersion (pd),geophysical techniques,synthetic aperture radar,phase errors,synthetic aperture radar (sar) imaging,image shift,polarimetric distortion,ionospheric faraday rotation,polarimetric sar system impulse response matrices,low-frequency spaceborne sar imaging,matrix algebra,remote sensing by radar,linearly polarized sar systems,transient response,amplitude modulation,radiowave propagation,ionosphere,sar signal distortion,spaceborne low-frequency wide-bandwidth synthetic aperture radar signals,ionospheric polarimetric dispersion effect,circularly polarized sar systems,spaceborne radar,ionospheric electromagnetic wave propagation,radar imaging,p-band wide-bandwidth sar systems,radar polarimetry,faraday effect,sar spectrum,imaging,degradation,remote sensing,dispersion | Faraday effect,Impulse response,Radar imaging,Polarimetry,Side looking airborne radar,Synthetic aperture radar,Remote sensing,Optics,Inverse synthetic aperture radar,Distortion,Mathematics | Journal |
Volume | Issue | ISSN |
11 | 12 | 1545-598X |
Citations | PageRank | References |
3 | 0.44 | 5 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Li Li | 1 | 76 | 24.03 |
| Yongsheng Zhang | 2 | 204 | 43.58 |
| Zhen Dong | 3 | 81 | 26.47 |
| Diannong Liang | 4 | 71 | 10.99 |