DVB-T-Based Passive Forward Scatter Radar: Inherent Limitations and Enabling Solutions.
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| Title: | DVB-T-Based Passive Forward Scatter Radar: Inherent Limitations and Enabling Solutions. |
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| Authors: | Colone, Fabiola1 (AUTHOR) |
| Source: | IEEE Transactions on Aerospace & Electronic Systems. Apr2021, Vol. 57 Issue 2, p1084-1104. 21p. |
| Subjects: | FM broadcasting, Orthogonal frequency division multiplexing, Radar, Signal processing, MIMO radar |
| Abstract: | This article investigates the target detection capability of a passive forward scatter radar (PFSR) exploiting a digital video broadcasting – terrestrial (DVB-T) transmitter as illuminator of opportunity. By means of theoretical and simulated analyses, it is shown that conventional processing schemes might suffer from significant performance degradation when exploiting orthogonal frequency division multiplexing (OFDM) waveforms of opportunity compared to other broadcast transmissions (e.g., frequency modulation radio broadcast). Specifically, the direct application of conventional processing approaches to the case of a DVB-T PFSR is demonstrated to yield: 1) a nonnegligible increase of the competing background level and 2) a steeper fading of the target response due to the intrinsic characteristics of the exploited waveforms of opportunity, above all the modulation scheme and the signal spectral characteristics. Therefore, appropriate signal processing techniques are proposed to avoid these effects which jeopardize the target detection capability. The conceived processing scheme exploits the digital nature of the employed waveforms and a subband approach for improving both the interference cancellation stage and the target signature extraction. The benefits of the proposed approach are illustrated by means of theoretical and simulated analyses. The application of the resulting processing scheme against experimental data proves its effectiveness in practical scenarios. [ABSTRACT FROM AUTHOR] |
| Copyright of IEEE Transactions on Aerospace & Electronic Systems is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 149806592 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: DVB-T-Based Passive Forward Scatter Radar: Inherent Limitations and Enabling Solutions. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Colone%2C+Fabiola%22">Colone, Fabiola</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22IEEE+Transactions+on+Aerospace+%26+Electronic+Systems%22">IEEE Transactions on Aerospace & Electronic Systems</searchLink>. Apr2021, Vol. 57 Issue 2, p1084-1104. 21p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22FM+broadcasting%22">FM broadcasting</searchLink><br /><searchLink fieldCode="DE" term="%22Orthogonal+frequency+division+multiplexing%22">Orthogonal frequency division multiplexing</searchLink><br /><searchLink fieldCode="DE" term="%22Radar%22">Radar</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+processing%22">Signal processing</searchLink><br /><searchLink fieldCode="DE" term="%22MIMO+radar%22">MIMO radar</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This article investigates the target detection capability of a passive forward scatter radar (PFSR) exploiting a digital video broadcasting – terrestrial (DVB-T) transmitter as illuminator of opportunity. By means of theoretical and simulated analyses, it is shown that conventional processing schemes might suffer from significant performance degradation when exploiting orthogonal frequency division multiplexing (OFDM) waveforms of opportunity compared to other broadcast transmissions (e.g., frequency modulation radio broadcast). Specifically, the direct application of conventional processing approaches to the case of a DVB-T PFSR is demonstrated to yield: 1) a nonnegligible increase of the competing background level and 2) a steeper fading of the target response due to the intrinsic characteristics of the exploited waveforms of opportunity, above all the modulation scheme and the signal spectral characteristics. Therefore, appropriate signal processing techniques are proposed to avoid these effects which jeopardize the target detection capability. The conceived processing scheme exploits the digital nature of the employed waveforms and a subband approach for improving both the interference cancellation stage and the target signature extraction. The benefits of the proposed approach are illustrated by means of theoretical and simulated analyses. The application of the resulting processing scheme against experimental data proves its effectiveness in practical scenarios. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of IEEE Transactions on Aerospace & Electronic Systems is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1109/TAES.2020.3035435 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 21 StartPage: 1084 Subjects: – SubjectFull: FM broadcasting Type: general – SubjectFull: Orthogonal frequency division multiplexing Type: general – SubjectFull: Radar Type: general – SubjectFull: Signal processing Type: general – SubjectFull: MIMO radar Type: general Titles: – TitleFull: DVB-T-Based Passive Forward Scatter Radar: Inherent Limitations and Enabling Solutions. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Colone, Fabiola IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 00189251 Numbering: – Type: volume Value: 57 – Type: issue Value: 2 Titles: – TitleFull: IEEE Transactions on Aerospace & Electronic Systems Type: main |
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