Estimating number of group targets arranged in linear array via forward‐backward matrix pencil method
Abstract An efficient number estimation method is proposed for target detection by using the forward‐backward matrix pencil method. Compared with the traditional parameter estimation methods, the proposed method can work well even for sparse signals. At first, the radar cross section of the group ta...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-04-01
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| Series: | IET Radar, Sonar & Navigation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/rsn2.12368 |
| _version_ | 1827967688803090432 |
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| author | Xiyuan Sun Shixi Li Pengfei Gu Zi He Dazhi Ding Shaoqing Guo You Li |
| author_facet | Xiyuan Sun Shixi Li Pengfei Gu Zi He Dazhi Ding Shaoqing Guo You Li |
| author_sort | Xiyuan Sun |
| collection | DOAJ |
| description | Abstract An efficient number estimation method is proposed for target detection by using the forward‐backward matrix pencil method. Compared with the traditional parameter estimation methods, the proposed method can work well even for sparse signals. At first, the radar cross section of the group targets arranged in linear array is obtained at some certain angles or frequencies. Then, the Hankel‐Toeplitz matrix is constructed from the known radar echoes, and the singular value decomposition is performed on this matrix. Finally, the number of the group targets arranged in linear array can be accurately estimated by setting an appropriate threshold to select the singular value with a large proportion. In addition, the influence of different signal‐to‐noise ratios (SNR) on the estimation results is also discussed. In order to enhance the accuracy, several groups of different echoes are used to estimate the number of group targets jointly. The simulation results demonstrate that the proposed method is effective and accurate in estimating the number of group targets arranged in linear array. Moreover, the estimation result of the proposed method in this paper is not affected by the noise, which shows that this method has better robustness. |
| first_indexed | 2024-04-09T18:10:04Z |
| format | Article |
| id | doaj.art-671baae4efd44cb38033c393850072c9 |
| institution | Directory Open Access Journal |
| issn | 1751-8784 1751-8792 |
| language | English |
| last_indexed | 2024-04-09T18:10:04Z |
| publishDate | 2023-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Radar, Sonar & Navigation |
| spelling | doaj.art-671baae4efd44cb38033c393850072c92023-04-14T03:27:01ZengWileyIET Radar, Sonar & Navigation1751-87841751-87922023-04-0117464265110.1049/rsn2.12368Estimating number of group targets arranged in linear array via forward‐backward matrix pencil methodXiyuan Sun0Shixi Li1Pengfei Gu2Zi He3Dazhi Ding4Shaoqing Guo5You Li6Department of Communication Engineering Nanjing University of Science and Technology Nanjing ChinaDepartment of Communication Engineering Nanjing University of Science and Technology Nanjing ChinaDepartment of Communication Engineering Nanjing University of Science and Technology Nanjing ChinaDepartment of Communication Engineering Nanjing University of Science and Technology Nanjing ChinaDepartment of Communication Engineering Nanjing University of Science and Technology Nanjing ChinaDepartment of Key Laboratory of Information Metamaterial Radiation and Scattering Technology Nanjing Electronic Equipment Institute Nanjing ChinaDepartment of Key Laboratory of Information Metamaterial Radiation and Scattering Technology Nanjing Electronic Equipment Institute Nanjing ChinaAbstract An efficient number estimation method is proposed for target detection by using the forward‐backward matrix pencil method. Compared with the traditional parameter estimation methods, the proposed method can work well even for sparse signals. At first, the radar cross section of the group targets arranged in linear array is obtained at some certain angles or frequencies. Then, the Hankel‐Toeplitz matrix is constructed from the known radar echoes, and the singular value decomposition is performed on this matrix. Finally, the number of the group targets arranged in linear array can be accurately estimated by setting an appropriate threshold to select the singular value with a large proportion. In addition, the influence of different signal‐to‐noise ratios (SNR) on the estimation results is also discussed. In order to enhance the accuracy, several groups of different echoes are used to estimate the number of group targets jointly. The simulation results demonstrate that the proposed method is effective and accurate in estimating the number of group targets arranged in linear array. Moreover, the estimation result of the proposed method in this paper is not affected by the noise, which shows that this method has better robustness.https://doi.org/10.1049/rsn2.12368optimisationradar cross‐sectionsradar signal processing |
| spellingShingle | Xiyuan Sun Shixi Li Pengfei Gu Zi He Dazhi Ding Shaoqing Guo You Li Estimating number of group targets arranged in linear array via forward‐backward matrix pencil method IET Radar, Sonar & Navigation optimisation radar cross‐sections radar signal processing |
| title | Estimating number of group targets arranged in linear array via forward‐backward matrix pencil method |
| title_full | Estimating number of group targets arranged in linear array via forward‐backward matrix pencil method |
| title_fullStr | Estimating number of group targets arranged in linear array via forward‐backward matrix pencil method |
| title_full_unstemmed | Estimating number of group targets arranged in linear array via forward‐backward matrix pencil method |
| title_short | Estimating number of group targets arranged in linear array via forward‐backward matrix pencil method |
| title_sort | estimating number of group targets arranged in linear array via forward backward matrix pencil method |
| topic | optimisation radar cross‐sections radar signal processing |
| url | https://doi.org/10.1049/rsn2.12368 |
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