Space-time division cluster DoA estimation algorithm based on UWA spread spectrum signal
To solve the problems of poor stability, low resolution, and performance degradation under low signal-to-noise ratio (SNR) of the direction of arrival (DoA) estimation, a space-time division cluster (STDC) DoA estimation algorithm was proposed for under water acoustic (UWA) spread spectrum signal.Th...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2022-08-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022164/ |
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| _version_ | 1841539985843421184 |
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| author | Feng ZHOU Baosheng ZHANG Wenbo ZHANG |
| author_facet | Feng ZHOU Baosheng ZHANG Wenbo ZHANG |
| author_sort | Feng ZHOU |
| collection | DOAJ |
| description | To solve the problems of poor stability, low resolution, and performance degradation under low signal-to-noise ratio (SNR) of the direction of arrival (DoA) estimation, a space-time division cluster (STDC) DoA estimation algorithm was proposed for under water acoustic (UWA) spread spectrum signal.The idea of the time-frequency two-dimensional search was used to combine the conventional beamforming with the spread spectrum sequence, set the angle interval to search the incidence angle and the arrival delay of the spread-spectrum signal, and increased the spatial spectrum to the delay angle spectrum, which kept the high resolution.STDC-DoA estimation can be anti-interference and stable operation under low SNR by using the characteristics of spread spectrum sequence.Finally, through simulation and pool experiment, it was proved that compared with the traditional DoA estimation algorithm, the proposed algorithm has better performance in anti-interference, resolution, and anti-noise.Meanwhile, the proposed algorithm does not need signal source number estimation and angle prediction and has more robust performance. |
| format | Article |
| id | doaj-art-9c6dd67b65524ebe97a910b47669d0c0 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2022-08-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-9c6dd67b65524ebe97a910b47669d0c02025-01-14T06:28:57ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2022-08-014310010859392309Space-time division cluster DoA estimation algorithm based on UWA spread spectrum signalFeng ZHOUBaosheng ZHANGWenbo ZHANGTo solve the problems of poor stability, low resolution, and performance degradation under low signal-to-noise ratio (SNR) of the direction of arrival (DoA) estimation, a space-time division cluster (STDC) DoA estimation algorithm was proposed for under water acoustic (UWA) spread spectrum signal.The idea of the time-frequency two-dimensional search was used to combine the conventional beamforming with the spread spectrum sequence, set the angle interval to search the incidence angle and the arrival delay of the spread-spectrum signal, and increased the spatial spectrum to the delay angle spectrum, which kept the high resolution.STDC-DoA estimation can be anti-interference and stable operation under low SNR by using the characteristics of spread spectrum sequence.Finally, through simulation and pool experiment, it was proved that compared with the traditional DoA estimation algorithm, the proposed algorithm has better performance in anti-interference, resolution, and anti-noise.Meanwhile, the proposed algorithm does not need signal source number estimation and angle prediction and has more robust performance.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022164/DOA estimationspace-time division clusterUWA spread spectrum signalarray signal processing |
| spellingShingle | Feng ZHOU Baosheng ZHANG Wenbo ZHANG Space-time division cluster DoA estimation algorithm based on UWA spread spectrum signal Tongxin xuebao DOA estimation space-time division cluster UWA spread spectrum signal array signal processing |
| title | Space-time division cluster DoA estimation algorithm based on UWA spread spectrum signal |
| title_full | Space-time division cluster DoA estimation algorithm based on UWA spread spectrum signal |
| title_fullStr | Space-time division cluster DoA estimation algorithm based on UWA spread spectrum signal |
| title_full_unstemmed | Space-time division cluster DoA estimation algorithm based on UWA spread spectrum signal |
| title_short | Space-time division cluster DoA estimation algorithm based on UWA spread spectrum signal |
| title_sort | space time division cluster doa estimation algorithm based on uwa spread spectrum signal |
| topic | DOA estimation space-time division cluster UWA spread spectrum signal array signal processing |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022164/ |
| work_keys_str_mv | AT fengzhou spacetimedivisionclusterdoaestimationalgorithmbasedonuwaspreadspectrumsignal AT baoshengzhang spacetimedivisionclusterdoaestimationalgorithmbasedonuwaspreadspectrumsignal AT wenbozhang spacetimedivisionclusterdoaestimationalgorithmbasedonuwaspreadspectrumsignal |