On the Slow-Time <i>k</i>-Space and its Augmentation in Doppler Radar Tomography
Doppler Radar Tomography (DRT) relies on spatial diversity from rotational motion of a target rather than spectral diversity from wide bandwidth signals. The slow-time <i>k</i>-space is a novel form of the spatial frequency space generated by the relative rotational motion of a target at...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/2/513 |
| _version_ | 1811187072948502528 |
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| author | Hai-Tan Tran Emma Heading Brian W.-H. Ng |
| author_facet | Hai-Tan Tran Emma Heading Brian W.-H. Ng |
| author_sort | Hai-Tan Tran |
| collection | DOAJ |
| description | Doppler Radar Tomography (DRT) relies on spatial diversity from rotational motion of a target rather than spectral diversity from wide bandwidth signals. The slow-time <i>k</i>-space is a novel form of the spatial frequency space generated by the relative rotational motion of a target at a single radar frequency, which can be exploited for high-resolution target imaging by a narrowband radar with Doppler tomographic signal processing. This paper builds on a previously published work and demonstrates, with real experimental data, a unique and interesting characteristic of the slow-time <i>k</i>-space: it can be augmented and significantly enhance imaging resolution by signal processing. High resolution can reveal finer details in the image, providing more information to identify unknown targets detected by the radar. |
| first_indexed | 2024-04-11T13:57:02Z |
| format | Article |
| id | doaj.art-61bacce5afa0494d9794ea2298971664 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T13:57:02Z |
| publishDate | 2020-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-61bacce5afa0494d9794ea22989716642022-12-22T04:20:18ZengMDPI AGSensors1424-82202020-01-0120251310.3390/s20020513s20020513On the Slow-Time <i>k</i>-Space and its Augmentation in Doppler Radar TomographyHai-Tan Tran0Emma Heading1Brian W.-H. Ng2Intelligence, Surveillance, and Space Division, Defence Science and Technology Group, Edinburgh, SA 5111, AustraliaIntelligence, Surveillance, and Space Division, Defence Science and Technology Group, Edinburgh, SA 5111, AustraliaFaculty of Engineering Computer & Mathematical Sciences, School of Electrical and Electronic Engineering, The University of Adelaide, North Terrace Campus, Adelaide, SA 5005, AustraliaDoppler Radar Tomography (DRT) relies on spatial diversity from rotational motion of a target rather than spectral diversity from wide bandwidth signals. The slow-time <i>k</i>-space is a novel form of the spatial frequency space generated by the relative rotational motion of a target at a single radar frequency, which can be exploited for high-resolution target imaging by a narrowband radar with Doppler tomographic signal processing. This paper builds on a previously published work and demonstrates, with real experimental data, a unique and interesting characteristic of the slow-time <i>k</i>-space: it can be augmented and significantly enhance imaging resolution by signal processing. High resolution can reveal finer details in the image, providing more information to identify unknown targets detected by the radar.https://www.mdpi.com/1424-8220/20/2/513slow-time <i>k</i>-spacespatial frequencydoppler radar tomographyradar imaging<i>k</i>-space augmentationhigh-resolution narrowband radar |
| spellingShingle | Hai-Tan Tran Emma Heading Brian W.-H. Ng On the Slow-Time <i>k</i>-Space and its Augmentation in Doppler Radar Tomography Sensors slow-time <i>k</i>-space spatial frequency doppler radar tomography radar imaging <i>k</i>-space augmentation high-resolution narrowband radar |
| title | On the Slow-Time <i>k</i>-Space and its Augmentation in Doppler Radar Tomography |
| title_full | On the Slow-Time <i>k</i>-Space and its Augmentation in Doppler Radar Tomography |
| title_fullStr | On the Slow-Time <i>k</i>-Space and its Augmentation in Doppler Radar Tomography |
| title_full_unstemmed | On the Slow-Time <i>k</i>-Space and its Augmentation in Doppler Radar Tomography |
| title_short | On the Slow-Time <i>k</i>-Space and its Augmentation in Doppler Radar Tomography |
| title_sort | on the slow time i k i space and its augmentation in doppler radar tomography |
| topic | slow-time <i>k</i>-space spatial frequency doppler radar tomography radar imaging <i>k</i>-space augmentation high-resolution narrowband radar |
| url | https://www.mdpi.com/1424-8220/20/2/513 |
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