Two Novel Two-Stage Direction of Arrival Estimation Algorithms for Two-Dimensional Mixed Noncircular and Circular Sources
This paper addresses the two-dimensional (2D) direction-of-arrival (DOA) estimation problem with two novel methods for mixed noncircular and circular signals. The first proposed method is named the two-stage direction-of-arrival matrix (TSDOAM) method, and the other is called the two-stage rank redu...
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MDPI AG
2017-06-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/17/6/1433 |
| _version_ | 1798034919660716032 |
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| author | Heping Shi Wen Leng Zhiwei Guan Tongzhi Jin |
| author_facet | Heping Shi Wen Leng Zhiwei Guan Tongzhi Jin |
| author_sort | Heping Shi |
| collection | DOAJ |
| description | This paper addresses the two-dimensional (2D) direction-of-arrival (DOA) estimation problem with two novel methods for mixed noncircular and circular signals. The first proposed method is named the two-stage direction-of-arrival matrix (TSDOAM) method, and the other is called the two-stage rank reduction (TSRARE) method. The proposed methods utilize both the circularity and the direction-of-arrival differences between the noncircular and circular sources to estimate the 2D directions-of-arrival (DOAs). The maximum detectable 2D angle parameters of the TSDOAM and TSRARE methods are twice those of the existing methods. Moreover, the TSRARE method can detect more incident signals than the TSDOAM method due to the array aperture of two parallel uniform linear arrays (ULAs) being fully utilized. Simulation results show that compared to the existing methods for the small angle separation of 2D directions-of-arrival, the two proposed methods perform well in terms of the signal-to-noise ratio (SNR) and snapshots. |
| first_indexed | 2024-04-11T20:51:03Z |
| format | Article |
| id | doaj.art-7c8004759f2c44c1afb685af402239cd |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T20:51:03Z |
| publishDate | 2017-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7c8004759f2c44c1afb685af402239cd2022-12-22T04:03:51ZengMDPI AGSensors1424-82202017-06-01176143310.3390/s17061433s17061433Two Novel Two-Stage Direction of Arrival Estimation Algorithms for Two-Dimensional Mixed Noncircular and Circular SourcesHeping Shi0Wen Leng1Zhiwei Guan2Tongzhi Jin3School of Automotion and Transportation, Tianjin University of Technology and Education, Tianjin 300222, ChinaSchool of Electrical and Information Engineering, Tianjin University, Tianjin 300072, ChinaSchool of Automotion and Transportation, Tianjin University of Technology and Education, Tianjin 300222, ChinaSchool of Electrical and Information Engineering, Tianjin University, Tianjin 300072, ChinaThis paper addresses the two-dimensional (2D) direction-of-arrival (DOA) estimation problem with two novel methods for mixed noncircular and circular signals. The first proposed method is named the two-stage direction-of-arrival matrix (TSDOAM) method, and the other is called the two-stage rank reduction (TSRARE) method. The proposed methods utilize both the circularity and the direction-of-arrival differences between the noncircular and circular sources to estimate the 2D directions-of-arrival (DOAs). The maximum detectable 2D angle parameters of the TSDOAM and TSRARE methods are twice those of the existing methods. Moreover, the TSRARE method can detect more incident signals than the TSDOAM method due to the array aperture of two parallel uniform linear arrays (ULAs) being fully utilized. Simulation results show that compared to the existing methods for the small angle separation of 2D directions-of-arrival, the two proposed methods perform well in terms of the signal-to-noise ratio (SNR) and snapshots.http://www.mdpi.com/1424-8220/17/6/14332D direction-of-arrival estimationnoncircular signalcircularity differencesmall angle separation |
| spellingShingle | Heping Shi Wen Leng Zhiwei Guan Tongzhi Jin Two Novel Two-Stage Direction of Arrival Estimation Algorithms for Two-Dimensional Mixed Noncircular and Circular Sources Sensors 2D direction-of-arrival estimation noncircular signal circularity difference small angle separation |
| title | Two Novel Two-Stage Direction of Arrival Estimation Algorithms for Two-Dimensional Mixed Noncircular and Circular Sources |
| title_full | Two Novel Two-Stage Direction of Arrival Estimation Algorithms for Two-Dimensional Mixed Noncircular and Circular Sources |
| title_fullStr | Two Novel Two-Stage Direction of Arrival Estimation Algorithms for Two-Dimensional Mixed Noncircular and Circular Sources |
| title_full_unstemmed | Two Novel Two-Stage Direction of Arrival Estimation Algorithms for Two-Dimensional Mixed Noncircular and Circular Sources |
| title_short | Two Novel Two-Stage Direction of Arrival Estimation Algorithms for Two-Dimensional Mixed Noncircular and Circular Sources |
| title_sort | two novel two stage direction of arrival estimation algorithms for two dimensional mixed noncircular and circular sources |
| topic | 2D direction-of-arrival estimation noncircular signal circularity difference small angle separation |
| url | http://www.mdpi.com/1424-8220/17/6/1433 |
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