Name
Abstract | ||
|---|---|---|
The narrow-band interference (NBI) is a common jamming signal against synthetic aperture radar (SAR), which can degrade the imaging quality severely. This paper proposes a new method for NBI suppression in the data domain based on the independent component analysis (ICA). In this method, echoes contaminated by the NBI are identified in the frequency domain. Next, time filtering and whitening are performed to the identified echoes. Then, the ICA is carried out to decompose the echoes into a series of basis signals, and the jamming components are selected by thresholding. Finally, the NBI is reconstructed and subtracted from the echoes, and the well-focused SAR imagery is obtained by conventional imaging methods. The proposed method copes well with the time-varying NBI with little signal loss. Results of simulated and measured data have proved the validity of the proposed method. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/TGRS.2013.2244605 | IEEE T. Geoscience and Remote Sensing |
Keywords | Field | DocType |
echo contamination,synthetic aperture radar,narrow-band interference (nbi),jamming signal,synthetic aperture radar (sar),sar imaging method,independent component analysis (ica),frequency-domain analysis,independent component analysis,radar interference,frequency domain,data domain,jamming suppression,narrow-band interference suppression,interference suppression,time filtering,jamming,signal loss,ica,nbi,radar imaging,whitening,frequency domain analysis | Frequency domain,Radar imaging,Synthetic aperture radar,Remote sensing,Filter (signal processing),Independent component analysis,Interference (wave propagation),Thresholding,Jamming,Mathematics | Journal |
Volume | Issue | ISSN |
51 | 10 | 0196-2892 |
Citations | PageRank | References |
12 | 0.57 | 14 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Feng Zhou | 1 | 2189 | 158.01 |
| Mingliang Tao | 2 | 68 | 10.49 |
| Xueru Bai | 3 | 169 | 25.80 |
| Jianqiang Liu | 4 | 12 | 0.57 |