Multipath Suppression and High-precision Angle Measurement Method Based on Feature Game Preprocessing
The meter-wave radar, known for its wide beamwidth, often faces challenges in detecting low-elevation targets due to interference from multipath signals. These reflected signals diminish the strength of the direct signal, leading to poor accuracy in low-elevation angle measurements. To solve this pr...
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| Format: | Article |
| Language: | English |
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China Science Publishing & Media Ltd. (CSPM)
2025-04-01
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| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | https://radars.ac.cn/cn/article/doi/10.12000/JR24215 |
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| author | Houhong XIANG Yongliang WANG Yuxi LI Yufeng CHEN Fengyu WANG Xiaolu ZENG |
| author_facet | Houhong XIANG Yongliang WANG Yuxi LI Yufeng CHEN Fengyu WANG Xiaolu ZENG |
| author_sort | Houhong XIANG |
| collection | DOAJ |
| description | The meter-wave radar, known for its wide beamwidth, often faces challenges in detecting low-elevation targets due to interference from multipath signals. These reflected signals diminish the strength of the direct signal, leading to poor accuracy in low-elevation angle measurements. To solve this problem, this paper proposes a multipath suppression and high-precision angle measurement method. This method, based on a signal-level feature game approach, incorporates two interconnected components working together. The direct signal extractor mines the direct signal submerged within the multipath signal. The direct signal feature discriminator ensures the integrity and validity of the extracted direct signal. By continuously interacting and optimizing one another, these components suppress the multipath interference effectively and enhance the quality of the direct signal. The refined signal is then processed using advanced super-resolution algorithms to estimate the Direction of Arrival (DoA). Computer simulations have shown that the proposed algorithm achieves high performance without relying on strict target angle information, effectively suppressing multipath signals. This approach noticeably enhances the estimation accuracy of classic super-resolution algorithms. Compared to existing supervised learning models, the proposed algorithm offers better generalization to unknown signal parameters and multipath distribution models. |
| format | Article |
| id | doaj-art-912f860ff5904e889dd9705260d09f2e |
| institution | DOAJ |
| issn | 2095-283X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj-art-912f860ff5904e889dd9705260d09f2e2025-08-20T02:53:33ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2025-04-0114226927910.12000/JR24215R24215Multipath Suppression and High-precision Angle Measurement Method Based on Feature Game PreprocessingHouhong XIANG0Yongliang WANG1Yuxi LI2Yufeng CHEN3Fengyu WANG4Xiaolu ZENG5School of Computer and Information, Hefei University of Technology, Hefei 230009, ChinaAir Force Early Warning Academy, Wuhan 430019, ChinaSchool of Computer and Information, Hefei University of Technology, Hefei 230009, ChinaHangzhou Institute of Technology, Xidian University, Hangzhou 311200, ChinaSchool of Artificial Intelligence, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaSchool of Information and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaThe meter-wave radar, known for its wide beamwidth, often faces challenges in detecting low-elevation targets due to interference from multipath signals. These reflected signals diminish the strength of the direct signal, leading to poor accuracy in low-elevation angle measurements. To solve this problem, this paper proposes a multipath suppression and high-precision angle measurement method. This method, based on a signal-level feature game approach, incorporates two interconnected components working together. The direct signal extractor mines the direct signal submerged within the multipath signal. The direct signal feature discriminator ensures the integrity and validity of the extracted direct signal. By continuously interacting and optimizing one another, these components suppress the multipath interference effectively and enhance the quality of the direct signal. The refined signal is then processed using advanced super-resolution algorithms to estimate the Direction of Arrival (DoA). Computer simulations have shown that the proposed algorithm achieves high performance without relying on strict target angle information, effectively suppressing multipath signals. This approach noticeably enhances the estimation accuracy of classic super-resolution algorithms. Compared to existing supervised learning models, the proposed algorithm offers better generalization to unknown signal parameters and multipath distribution models.https://radars.ac.cn/cn/article/doi/10.12000/JR24215meter-wave radarmultipath signaldirect signal extractiondirect signal feature identificationangle measurement |
| spellingShingle | Houhong XIANG Yongliang WANG Yuxi LI Yufeng CHEN Fengyu WANG Xiaolu ZENG Multipath Suppression and High-precision Angle Measurement Method Based on Feature Game Preprocessing Leida xuebao meter-wave radar multipath signal direct signal extraction direct signal feature identification angle measurement |
| title | Multipath Suppression and High-precision Angle Measurement Method Based on Feature Game Preprocessing |
| title_full | Multipath Suppression and High-precision Angle Measurement Method Based on Feature Game Preprocessing |
| title_fullStr | Multipath Suppression and High-precision Angle Measurement Method Based on Feature Game Preprocessing |
| title_full_unstemmed | Multipath Suppression and High-precision Angle Measurement Method Based on Feature Game Preprocessing |
| title_short | Multipath Suppression and High-precision Angle Measurement Method Based on Feature Game Preprocessing |
| title_sort | multipath suppression and high precision angle measurement method based on feature game preprocessing |
| topic | meter-wave radar multipath signal direct signal extraction direct signal feature identification angle measurement |
| url | https://radars.ac.cn/cn/article/doi/10.12000/JR24215 |
| work_keys_str_mv | AT houhongxiang multipathsuppressionandhighprecisionanglemeasurementmethodbasedonfeaturegamepreprocessing AT yongliangwang multipathsuppressionandhighprecisionanglemeasurementmethodbasedonfeaturegamepreprocessing AT yuxili multipathsuppressionandhighprecisionanglemeasurementmethodbasedonfeaturegamepreprocessing AT yufengchen multipathsuppressionandhighprecisionanglemeasurementmethodbasedonfeaturegamepreprocessing AT fengyuwang multipathsuppressionandhighprecisionanglemeasurementmethodbasedonfeaturegamepreprocessing AT xiaoluzeng multipathsuppressionandhighprecisionanglemeasurementmethodbasedonfeaturegamepreprocessing |