2D DOA Estimation with a Two-Parallel Array Consisting of Two Uniform Large-Spacing Linear Arrays
In this paper, an improved propagator method (PM) is proposed by using a two-parallel array consisting of two uniform large-spacing linear arrays. Because of the increase of element spacing, the mutual coupling between two sensors can be reduced. Firstly, two matrices containing elevation angle info...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2020/4069307 |
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| author | Sheng Liu Jing Zhao Yu Zhang |
| author_facet | Sheng Liu Jing Zhao Yu Zhang |
| author_sort | Sheng Liu |
| collection | DOAJ |
| description | In this paper, an improved propagator method (PM) is proposed by using a two-parallel array consisting of two uniform large-spacing linear arrays. Because of the increase of element spacing, the mutual coupling between two sensors can be reduced. Firstly, two matrices containing elevation angle information are obtained by PM. Then, by performing EVD of the product of the two matrices, the elevation angles of incident signals can be estimated without direction ambiguity. At last, the matrix product is used again to obtain the estimations of azimuth angles. Compared with the existed PM algorithms based on conventional uniform two-parallel linear array, the proposed PM algorithm based on the large-spacing linear arrays has higher estimation precision. Many simulation experiments are presented to verify the effect of proposed scheme in reducing the mutual coupling and improving estimation precision. |
| format | Article |
| id | doaj-art-7c15999d9e5e4938a72e8da79421f2f9 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-7c15999d9e5e4938a72e8da79421f2f92025-02-03T05:44:14ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772020-01-01202010.1155/2020/406930740693072D DOA Estimation with a Two-Parallel Array Consisting of Two Uniform Large-Spacing Linear ArraysSheng Liu0Jing Zhao1Yu Zhang2School of Data Science, Tongren University, Tongren 554300, ChinaSchool of Data Science, Tongren University, Tongren 554300, ChinaCollege of Computer and Information Science, Southwest University, Chongqing 400715, ChinaIn this paper, an improved propagator method (PM) is proposed by using a two-parallel array consisting of two uniform large-spacing linear arrays. Because of the increase of element spacing, the mutual coupling between two sensors can be reduced. Firstly, two matrices containing elevation angle information are obtained by PM. Then, by performing EVD of the product of the two matrices, the elevation angles of incident signals can be estimated without direction ambiguity. At last, the matrix product is used again to obtain the estimations of azimuth angles. Compared with the existed PM algorithms based on conventional uniform two-parallel linear array, the proposed PM algorithm based on the large-spacing linear arrays has higher estimation precision. Many simulation experiments are presented to verify the effect of proposed scheme in reducing the mutual coupling and improving estimation precision.http://dx.doi.org/10.1155/2020/4069307 |
| spellingShingle | Sheng Liu Jing Zhao Yu Zhang 2D DOA Estimation with a Two-Parallel Array Consisting of Two Uniform Large-Spacing Linear Arrays International Journal of Antennas and Propagation |
| title | 2D DOA Estimation with a Two-Parallel Array Consisting of Two Uniform Large-Spacing Linear Arrays |
| title_full | 2D DOA Estimation with a Two-Parallel Array Consisting of Two Uniform Large-Spacing Linear Arrays |
| title_fullStr | 2D DOA Estimation with a Two-Parallel Array Consisting of Two Uniform Large-Spacing Linear Arrays |
| title_full_unstemmed | 2D DOA Estimation with a Two-Parallel Array Consisting of Two Uniform Large-Spacing Linear Arrays |
| title_short | 2D DOA Estimation with a Two-Parallel Array Consisting of Two Uniform Large-Spacing Linear Arrays |
| title_sort | 2d doa estimation with a two parallel array consisting of two uniform large spacing linear arrays |
| url | http://dx.doi.org/10.1155/2020/4069307 |
| work_keys_str_mv | AT shengliu 2ddoaestimationwithatwoparallelarrayconsistingoftwouniformlargespacinglineararrays AT jingzhao 2ddoaestimationwithatwoparallelarrayconsistingoftwouniformlargespacinglineararrays AT yuzhang 2ddoaestimationwithatwoparallelarrayconsistingoftwouniformlargespacinglineararrays |