A fast disturbance cancellation scheme for orthogonal frequency division multiplexing‐based passive radar exploiting reciprocal filter
Abstract This paper proposes a simple non‐adaptive approach for the suppression of direct signal and clutter contributions in a passive radar system based on orthogonal frequency division multiplexing transmissions, exploiting the properties of a reciprocal filter (RF). The use of a RF allows to cir...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-01-01
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| Series: | IET Radar, Sonar & Navigation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/rsn2.12480 |
| _version_ | 1827368859996258304 |
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| author | Javier Trujillo Rodriguez Giovanni P. Blasone Fabiola Colone Pierfrancesco Lombardo |
| author_facet | Javier Trujillo Rodriguez Giovanni P. Blasone Fabiola Colone Pierfrancesco Lombardo |
| author_sort | Javier Trujillo Rodriguez |
| collection | DOAJ |
| description | Abstract This paper proposes a simple non‐adaptive approach for the suppression of direct signal and clutter contributions in a passive radar system based on orthogonal frequency division multiplexing transmissions, exploiting the properties of a reciprocal filter (RF). The use of a RF allows to circumvent the limits posed by the waveform ambiguity function, producing a data‐independent time‐invariant response to a stationary point‐like target echo at the output of the range compression stage. This feature enables simple clutter cancellation strategies, based on the subtraction of delayed portions of the surveillance signal, according to the conventional moving target indication methodologies. The proposed processing scheme consists of a range compression stage based on a RF, followed by a Single Canceller. Its performance is investigated against a simulated and an experimental data set, for the case of a digital video broadcasting‐terrestial‐based passive radar scenario, and it is compared to an alternative scheme based on a conventional matched filter and adaptive cancellation techniques. The proposed approach is shown to yield a perfect cancellation of the clutter returns from a stationary scene under ideal conditions. Moreover, it proves to be robust to real‐world conditions, despite its considerably limited computational load compared to adaptive clutter cancellation techniques. |
| first_indexed | 2024-03-08T09:37:56Z |
| format | Article |
| id | doaj.art-8199e024abeb4965bf61959631d711c0 |
| institution | Directory Open Access Journal |
| issn | 1751-8784 1751-8792 |
| language | English |
| last_indexed | 2024-03-08T09:37:56Z |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Radar, Sonar & Navigation |
| spelling | doaj.art-8199e024abeb4965bf61959631d711c02024-01-30T07:26:11ZengWileyIET Radar, Sonar & Navigation1751-87841751-87922024-01-01181566710.1049/rsn2.12480A fast disturbance cancellation scheme for orthogonal frequency division multiplexing‐based passive radar exploiting reciprocal filterJavier Trujillo Rodriguez0Giovanni P. Blasone1Fabiola Colone2Pierfrancesco Lombardo3Department of Information Engineering, Electronics and Telecommunications (DIET) Sapienza University of Rome Rome ItalyDepartment of Information Engineering, Electronics and Telecommunications (DIET) Sapienza University of Rome Rome ItalyDepartment of Information Engineering, Electronics and Telecommunications (DIET) Sapienza University of Rome Rome ItalyDepartment of Information Engineering, Electronics and Telecommunications (DIET) Sapienza University of Rome Rome ItalyAbstract This paper proposes a simple non‐adaptive approach for the suppression of direct signal and clutter contributions in a passive radar system based on orthogonal frequency division multiplexing transmissions, exploiting the properties of a reciprocal filter (RF). The use of a RF allows to circumvent the limits posed by the waveform ambiguity function, producing a data‐independent time‐invariant response to a stationary point‐like target echo at the output of the range compression stage. This feature enables simple clutter cancellation strategies, based on the subtraction of delayed portions of the surveillance signal, according to the conventional moving target indication methodologies. The proposed processing scheme consists of a range compression stage based on a RF, followed by a Single Canceller. Its performance is investigated against a simulated and an experimental data set, for the case of a digital video broadcasting‐terrestial‐based passive radar scenario, and it is compared to an alternative scheme based on a conventional matched filter and adaptive cancellation techniques. The proposed approach is shown to yield a perfect cancellation of the clutter returns from a stationary scene under ideal conditions. Moreover, it proves to be robust to real‐world conditions, despite its considerably limited computational load compared to adaptive clutter cancellation techniques.https://doi.org/10.1049/rsn2.12480passive radarradarradar signal processing |
| spellingShingle | Javier Trujillo Rodriguez Giovanni P. Blasone Fabiola Colone Pierfrancesco Lombardo A fast disturbance cancellation scheme for orthogonal frequency division multiplexing‐based passive radar exploiting reciprocal filter IET Radar, Sonar & Navigation passive radar radar radar signal processing |
| title | A fast disturbance cancellation scheme for orthogonal frequency division multiplexing‐based passive radar exploiting reciprocal filter |
| title_full | A fast disturbance cancellation scheme for orthogonal frequency division multiplexing‐based passive radar exploiting reciprocal filter |
| title_fullStr | A fast disturbance cancellation scheme for orthogonal frequency division multiplexing‐based passive radar exploiting reciprocal filter |
| title_full_unstemmed | A fast disturbance cancellation scheme for orthogonal frequency division multiplexing‐based passive radar exploiting reciprocal filter |
| title_short | A fast disturbance cancellation scheme for orthogonal frequency division multiplexing‐based passive radar exploiting reciprocal filter |
| title_sort | fast disturbance cancellation scheme for orthogonal frequency division multiplexing based passive radar exploiting reciprocal filter |
| topic | passive radar radar radar signal processing |
| url | https://doi.org/10.1049/rsn2.12480 |
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