Three‐Element Non‐Uniform Linear Array Design Strategy for Mobile Orthogonal Frequency Division Multiplexing Radar Using Supervised Displaced Phase Centre Antenna.
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| Title: | Three‐Element Non‐Uniform Linear Array Design Strategy for Mobile Orthogonal Frequency Division Multiplexing Radar Using Supervised Displaced Phase Centre Antenna. |
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| Authors: | Quirini, Andrea1 (AUTHOR) andrea.quirini@uniroma1.it, Colone, Fabiola1 (AUTHOR), Lombardo, Pierfrancesco1 (AUTHOR) |
| Source: | IET Radar, Sonar & Navigation (Wiley-Blackwell). Jan2025, Vol. 19 Issue 1, p1-15. 15p. |
| Subjects: | Orthogonal frequency division multiplexing, Antenna arrays, Signal processing, Space-time adaptive signal processing, Adaptive antennas, Electric filters |
| Abstract: | In this paper, we propose a three‐element nonuniform linear array (NULA) design strategy for an OFDM‐based radar system installed on a moving platform. The need to suppress Doppler‐spread clutter induced by platform motion requires the use of space–time cancellation approaches, such as displaced phase centre antenna (DPCA) or space–time adaptive processing (STAP). In particular, the recently introduced thresholded‐DPCA reciprocal filter (T‐DPCA‐RF) was demonstrated to be especially effective in detecting moving targets within a stationary scene using OFDM waveforms on transmit. This is mostly due to the T‐DPCA‐RF capability to process the received signals in batches of arbitrary length, independent of the OFDM framing structure. The three‐element receiving NULA design strategy for multi‐channel DPCA processing proposed in this work builds upon this feature of the T‐DPCA‐RF. Although previous research studies have demonstrated the advantages of NULA in multi‐channel DPCA, the antenna positions were chosen based on a heuristic criterion. The NULA design strategy proposed in this paper provides guidance for antenna positioning by enforcing a constraint on the DPCA filter response that prevents blind velocity effects within a specified target velocity range of interest. The effectiveness of the multi‐channel DPCA detector using the NULA designed with our strategy is validated through experimental data, extending the scope of previous studies in this area. [ABSTRACT FROM AUTHOR] |
| Copyright of IET Radar, Sonar & Navigation (Wiley-Blackwell) is the property of Wiley-Blackwell 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: 190526226 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Three‐Element Non‐Uniform Linear Array Design Strategy for Mobile Orthogonal Frequency Division Multiplexing Radar Using Supervised Displaced Phase Centre Antenna. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Quirini%2C+Andrea%22">Quirini, Andrea</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> andrea.quirini@uniroma1.it</i><br /><searchLink fieldCode="AR" term="%22Colone%2C+Fabiola%22">Colone, Fabiola</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lombardo%2C+Pierfrancesco%22">Lombardo, Pierfrancesco</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22IET+Radar%2C+Sonar+%26+Navigation+%28Wiley-Blackwell%29%22">IET Radar, Sonar & Navigation (Wiley-Blackwell)</searchLink>. Jan2025, Vol. 19 Issue 1, p1-15. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Orthogonal+frequency+division+multiplexing%22">Orthogonal frequency division multiplexing</searchLink><br /><searchLink fieldCode="DE" term="%22Antenna+arrays%22">Antenna arrays</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+processing%22">Signal processing</searchLink><br /><searchLink fieldCode="DE" term="%22Space-time+adaptive+signal+processing%22">Space-time adaptive signal processing</searchLink><br /><searchLink fieldCode="DE" term="%22Adaptive+antennas%22">Adaptive antennas</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+filters%22">Electric filters</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this paper, we propose a three‐element nonuniform linear array (NULA) design strategy for an OFDM‐based radar system installed on a moving platform. The need to suppress Doppler‐spread clutter induced by platform motion requires the use of space–time cancellation approaches, such as displaced phase centre antenna (DPCA) or space–time adaptive processing (STAP). In particular, the recently introduced thresholded‐DPCA reciprocal filter (T‐DPCA‐RF) was demonstrated to be especially effective in detecting moving targets within a stationary scene using OFDM waveforms on transmit. This is mostly due to the T‐DPCA‐RF capability to process the received signals in batches of arbitrary length, independent of the OFDM framing structure. The three‐element receiving NULA design strategy for multi‐channel DPCA processing proposed in this work builds upon this feature of the T‐DPCA‐RF. Although previous research studies have demonstrated the advantages of NULA in multi‐channel DPCA, the antenna positions were chosen based on a heuristic criterion. The NULA design strategy proposed in this paper provides guidance for antenna positioning by enforcing a constraint on the DPCA filter response that prevents blind velocity effects within a specified target velocity range of interest. The effectiveness of the multi‐channel DPCA detector using the NULA designed with our strategy is validated through experimental data, extending the scope of previous studies in this area. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of IET Radar, Sonar & Navigation (Wiley-Blackwell) is the property of Wiley-Blackwell 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: 10.1049/rsn2.70049 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 1 Subjects: – SubjectFull: Orthogonal frequency division multiplexing Type: general – SubjectFull: Antenna arrays Type: general – SubjectFull: Signal processing Type: general – SubjectFull: Space-time adaptive signal processing Type: general – SubjectFull: Adaptive antennas Type: general – SubjectFull: Electric filters Type: general Titles: – TitleFull: Three‐Element Non‐Uniform Linear Array Design Strategy for Mobile Orthogonal Frequency Division Multiplexing Radar Using Supervised Displaced Phase Centre Antenna. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Quirini, Andrea – PersonEntity: Name: NameFull: Colone, Fabiola – PersonEntity: Name: NameFull: Lombardo, Pierfrancesco IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 17518784 Numbering: – Type: volume Value: 19 – Type: issue Value: 1 Titles: – TitleFull: IET Radar, Sonar & Navigation (Wiley-Blackwell) Type: main |
| ResultId | 1 |
