Ultrawideband Microwave Sensing and Imaging Using Time-Reversal Techniques: A Review
This paper provides an overview of some time-reversal (TR) techniques for remote sensing and imaging using ultrawideband (UWB) electromagnetic signals in the microwave and millimeter wave range. The TR techniques explore the TR invariance of the wave equation in lossless and stationary media. They p...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2009-08-01
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| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2072-4292/1/3/466/ |
| _version_ | 1818282778509180928 |
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| author | Mehmet Emre Yavuz Fernando L. Teixeira |
| author_facet | Mehmet Emre Yavuz Fernando L. Teixeira |
| author_sort | Mehmet Emre Yavuz |
| collection | DOAJ |
| description | This paper provides an overview of some time-reversal (TR) techniques for remote sensing and imaging using ultrawideband (UWB) electromagnetic signals in the microwave and millimeter wave range. The TR techniques explore the TR invariance of the wave equation in lossless and stationary media. They provide superresolution and statistical stability, and are therefore quite useful for a number of remote sensing applications. We first discuss the TR concept through a prototypal TR experiment with a discrete scatterer embedded in continuous random media. We then discuss a series of TR-based imaging algorithms employing UWB signals: DORT, space-frequency (SF) imaging and TR-MUSIC. Finally, we consider a dispersion/loss compensation approach for TR applications in dispersive/lossy media, where TR invariance is broken. |
| first_indexed | 2024-12-13T00:26:25Z |
| format | Article |
| id | doaj.art-8d69c5276d0349d396d433bcd7a0fbb9 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-12-13T00:26:25Z |
| publishDate | 2009-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-8d69c5276d0349d396d433bcd7a0fbb92022-12-22T00:05:25ZengMDPI AGRemote Sensing2072-42922009-08-011346649510.3390/rs1030466Ultrawideband Microwave Sensing and Imaging Using Time-Reversal Techniques: A ReviewMehmet Emre YavuzFernando L. TeixeiraThis paper provides an overview of some time-reversal (TR) techniques for remote sensing and imaging using ultrawideband (UWB) electromagnetic signals in the microwave and millimeter wave range. The TR techniques explore the TR invariance of the wave equation in lossless and stationary media. They provide superresolution and statistical stability, and are therefore quite useful for a number of remote sensing applications. We first discuss the TR concept through a prototypal TR experiment with a discrete scatterer embedded in continuous random media. We then discuss a series of TR-based imaging algorithms employing UWB signals: DORT, space-frequency (SF) imaging and TR-MUSIC. Finally, we consider a dispersion/loss compensation approach for TR applications in dispersive/lossy media, where TR invariance is broken.http://www.mdpi.com/2072-4292/1/3/466/time-reversalsuperresolutionultrawideband electromagnetic wavestimedomain DORT methodspace-frequency (SF) imagingTR-MUSIC methodshort-time Fourier transformdispersion compensation |
| spellingShingle | Mehmet Emre Yavuz Fernando L. Teixeira Ultrawideband Microwave Sensing and Imaging Using Time-Reversal Techniques: A Review Remote Sensing time-reversal superresolution ultrawideband electromagnetic waves timedomain DORT method space-frequency (SF) imaging TR-MUSIC method short-time Fourier transform dispersion compensation |
| title | Ultrawideband Microwave Sensing and Imaging Using Time-Reversal Techniques: A Review |
| title_full | Ultrawideband Microwave Sensing and Imaging Using Time-Reversal Techniques: A Review |
| title_fullStr | Ultrawideband Microwave Sensing and Imaging Using Time-Reversal Techniques: A Review |
| title_full_unstemmed | Ultrawideband Microwave Sensing and Imaging Using Time-Reversal Techniques: A Review |
| title_short | Ultrawideband Microwave Sensing and Imaging Using Time-Reversal Techniques: A Review |
| title_sort | ultrawideband microwave sensing and imaging using time reversal techniques a review |
| topic | time-reversal superresolution ultrawideband electromagnetic waves timedomain DORT method space-frequency (SF) imaging TR-MUSIC method short-time Fourier transform dispersion compensation |
| url | http://www.mdpi.com/2072-4292/1/3/466/ |
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