RFI Suppression in Ultrawideband SAR Using an Adaptive Line Enhancer
In this letter, we propose an approach to suppress radio-frequency interference (RFI) in ultrawideband (UWB) low-frequency synthetic aperture radar (SAR). According to the proposal, RFI is suppressed by using an adaptive line enhancer controlled by the normalized least mean square algorithm. The app...
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| Published in | IEEE geoscience and remote sensing letters Vol. 7; no. 4; pp. 694 - 698 |
|---|---|
| Main Authors | , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Piscataway
IEEE
01.10.2010
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1545-598X 1558-0571 1558-0571 |
| DOI | 10.1109/LGRS.2010.2045633 |
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| Abstract | In this letter, we propose an approach to suppress radio-frequency interference (RFI) in ultrawideband (UWB) low-frequency synthetic aperture radar (SAR). According to the proposal, RFI is suppressed by using an adaptive line enhancer controlled by the normalized least mean square algorithm. The approach is tested successfully on real UWB low-frequency SAR data. In order to keep the computational burden down, possible ways to integrate the RFI suppression approach into SAR imaging algorithms are also suggested. |
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| AbstractList | In this letter, we propose an approach to suppress radio-frequency interference (RFI) in ultrawideband (UWB) low-frequency synthetic aperture radar (SAR). According to the proposal, RFI is suppressed by using an adaptive line enhancer controlled by the normalized least mean square algorithm. The approach is tested successfully on real UWB low-frequency SAR data. In order to keep the computational burden down, possible ways to integrate the RFI suppression approach into SAR imaging algorithms are also suggested. |
| Author | Ulander, Lars M H Pettersson, Mats I Gustavsson, Anders Vu, Viet T Sjögren, Thomas K Håkansson, Lars |
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| References | ref13 ref15 hayes (ref6) 1996 ref11 vu (ref14) 2008 ref1 vu (ref9) 2010 ref8 ref7 kimura (ref4) 2004; 87 ref3 ref5 seger (ref10) 1998 le (ref2) 1998 vu (ref12) 2008; 7109 |
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| SubjectTerms | Adaptive algorithms Adaptive control Adaptive control systems adaptive line enhancer Adaptive line enhancer (ALE) Algorithms CARABAS-II Imaging Interference suppression Least mean square algorithms Line enhancers Maskinteknik Mechanical Engineering normalized least mean square (LMS) (NLMS) normalized leastmean square (LMS) (NLMS) Programmable control Proposals Radio frequency radio-frequency interference (RFI) Radiofrequency interference Remote sensing RFI supression SAR Synthetic aperture radar synthetic aperture radar (SAR) Ultra wideband technology Ultrawideband ultrawideband (UWB) |
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| Title | RFI Suppression in Ultrawideband SAR Using an Adaptive Line Enhancer |
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