Joint suppression method for range-Doppler ambiguity sidelobes in DTMB-based passive bistatic radar
Abstract To mitigate the impact of the suboptimal ambiguity function of digital television terrestrial multimedia broadcasting (DTMB) signal, used as the illuminator of opportunity in passive bistatic radar, this paper provides a detailed analysis of the ambiguity function characteristics based on t...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-82020-7 |
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| author | Yong Wu Luo Zuo Jue Wang Dan Wang |
| author_facet | Yong Wu Luo Zuo Jue Wang Dan Wang |
| author_sort | Yong Wu |
| collection | DOAJ |
| description | Abstract To mitigate the impact of the suboptimal ambiguity function of digital television terrestrial multimedia broadcasting (DTMB) signal, used as the illuminator of opportunity in passive bistatic radar, this paper provides a detailed analysis of the ambiguity function characteristics based on the physical structure of the DTMB signal frame. It elucidates the mechanisms behind intra-frame and inter-frame range sidelobes, as well as Doppler sidelobes. Building on this analysis, a novel joint method for suppressing range-Doppler ambiguity sidelobes is proposed to achieve unambiguous target detection. The proposed method effectively removes various types of ambiguity peaks while minimizing mainlobe loss. Simulations and experimental data validate the accuracy of the analysis and demonstrate the effectiveness of the proposed method. |
| format | Article |
| id | doaj-art-48e6e8dd8a704647881460e86fe7add6 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-48e6e8dd8a704647881460e86fe7add62025-01-05T12:22:25ZengNature PortfolioScientific Reports2045-23222025-01-0115111710.1038/s41598-024-82020-7Joint suppression method for range-Doppler ambiguity sidelobes in DTMB-based passive bistatic radarYong Wu0Luo Zuo1Jue Wang2Dan Wang3Zhejiang Institute of CommunicationsGuangzhou Institute of Technology, Xidian UniversityXi’an Research Institute of Navigation TechnologyThe 705 Research Institute, China State Shipbuilding Corporation LimitedAbstract To mitigate the impact of the suboptimal ambiguity function of digital television terrestrial multimedia broadcasting (DTMB) signal, used as the illuminator of opportunity in passive bistatic radar, this paper provides a detailed analysis of the ambiguity function characteristics based on the physical structure of the DTMB signal frame. It elucidates the mechanisms behind intra-frame and inter-frame range sidelobes, as well as Doppler sidelobes. Building on this analysis, a novel joint method for suppressing range-Doppler ambiguity sidelobes is proposed to achieve unambiguous target detection. The proposed method effectively removes various types of ambiguity peaks while minimizing mainlobe loss. Simulations and experimental data validate the accuracy of the analysis and demonstrate the effectiveness of the proposed method.https://doi.org/10.1038/s41598-024-82020-7 |
| spellingShingle | Yong Wu Luo Zuo Jue Wang Dan Wang Joint suppression method for range-Doppler ambiguity sidelobes in DTMB-based passive bistatic radar Scientific Reports |
| title | Joint suppression method for range-Doppler ambiguity sidelobes in DTMB-based passive bistatic radar |
| title_full | Joint suppression method for range-Doppler ambiguity sidelobes in DTMB-based passive bistatic radar |
| title_fullStr | Joint suppression method for range-Doppler ambiguity sidelobes in DTMB-based passive bistatic radar |
| title_full_unstemmed | Joint suppression method for range-Doppler ambiguity sidelobes in DTMB-based passive bistatic radar |
| title_short | Joint suppression method for range-Doppler ambiguity sidelobes in DTMB-based passive bistatic radar |
| title_sort | joint suppression method for range doppler ambiguity sidelobes in dtmb based passive bistatic radar |
| url | https://doi.org/10.1038/s41598-024-82020-7 |
| work_keys_str_mv | AT yongwu jointsuppressionmethodforrangedopplerambiguitysidelobesindtmbbasedpassivebistaticradar AT luozuo jointsuppressionmethodforrangedopplerambiguitysidelobesindtmbbasedpassivebistaticradar AT juewang jointsuppressionmethodforrangedopplerambiguitysidelobesindtmbbasedpassivebistaticradar AT danwang jointsuppressionmethodforrangedopplerambiguitysidelobesindtmbbasedpassivebistaticradar |