Generalized and symmetric coprime planar array for direction of arrival estimation
Abstract Degrees of freedom and mutual coupling are two important factors to determine the ability of direction of arrival (DOA) estimation. Although coprime planar array (CPPA) has less mutual coupling than hourglass array (HA) and ladder array (LA), its positive and negative covariance correspondi...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-06-01
|
| Series: | IET Radar, Sonar & Navigation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/rsn2.12234 |
| _version_ | 1811288666211876864 |
|---|---|
| author | Ming Jian Ren Guoping Hu Junpeng Shi Hao Zhou |
| author_facet | Ming Jian Ren Guoping Hu Junpeng Shi Hao Zhou |
| author_sort | Ming Jian Ren |
| collection | DOAJ |
| description | Abstract Degrees of freedom and mutual coupling are two important factors to determine the ability of direction of arrival (DOA) estimation. Although coprime planar array (CPPA) has less mutual coupling than hourglass array (HA) and ladder array (LA), its positive and negative covariance corresponding lags are discontinuous, resulting in low degrees of freedom. In this study, we propose a generalized and symmetric coprime planar array (GSCA) by employing the symmetric property of the difference co‐array. By moving one subarray and introducing a supplementary subarray, we construct a connected virtual uniform rectangular array (URA). Through further optimizing the sensor number, the redundant lags are reduced and the array structure is more general. We show that the degrees of freedom are much higher than those of CPPA, HA and LA. Besides, the mutual coupling is close to CPPA, but less than HA and LA. The superiority of GSCA is verified by simulations. |
| first_indexed | 2024-04-13T03:41:12Z |
| format | Article |
| id | doaj.art-4e3087581e7942b39e1f3e7c4cf2098c |
| institution | Directory Open Access Journal |
| issn | 1751-8784 1751-8792 |
| language | English |
| last_indexed | 2024-04-13T03:41:12Z |
| publishDate | 2022-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Radar, Sonar & Navigation |
| spelling | doaj.art-4e3087581e7942b39e1f3e7c4cf2098c2022-12-22T03:04:08ZengWileyIET Radar, Sonar & Navigation1751-87841751-87922022-06-0116696196910.1049/rsn2.12234Generalized and symmetric coprime planar array for direction of arrival estimationMing Jian Ren0Guoping Hu1Junpeng Shi2Hao Zhou3Air and Missile Defence College Air Force Engineering University Xi'an ChinaAir and Missile Defence College Air Force Engineering University Xi'an ChinaCollege of Electronic Countermeasure National University of Defence Technology Hefei ChinaAir and Missile Defence College Air Force Engineering University Xi'an ChinaAbstract Degrees of freedom and mutual coupling are two important factors to determine the ability of direction of arrival (DOA) estimation. Although coprime planar array (CPPA) has less mutual coupling than hourglass array (HA) and ladder array (LA), its positive and negative covariance corresponding lags are discontinuous, resulting in low degrees of freedom. In this study, we propose a generalized and symmetric coprime planar array (GSCA) by employing the symmetric property of the difference co‐array. By moving one subarray and introducing a supplementary subarray, we construct a connected virtual uniform rectangular array (URA). Through further optimizing the sensor number, the redundant lags are reduced and the array structure is more general. We show that the degrees of freedom are much higher than those of CPPA, HA and LA. Besides, the mutual coupling is close to CPPA, but less than HA and LA. The superiority of GSCA is verified by simulations.https://doi.org/10.1049/rsn2.12234coprime arraydegree of freedomdirection of arrival estimationmutual coupling |
| spellingShingle | Ming Jian Ren Guoping Hu Junpeng Shi Hao Zhou Generalized and symmetric coprime planar array for direction of arrival estimation IET Radar, Sonar & Navigation coprime array degree of freedom direction of arrival estimation mutual coupling |
| title | Generalized and symmetric coprime planar array for direction of arrival estimation |
| title_full | Generalized and symmetric coprime planar array for direction of arrival estimation |
| title_fullStr | Generalized and symmetric coprime planar array for direction of arrival estimation |
| title_full_unstemmed | Generalized and symmetric coprime planar array for direction of arrival estimation |
| title_short | Generalized and symmetric coprime planar array for direction of arrival estimation |
| title_sort | generalized and symmetric coprime planar array for direction of arrival estimation |
| topic | coprime array degree of freedom direction of arrival estimation mutual coupling |
| url | https://doi.org/10.1049/rsn2.12234 |
| work_keys_str_mv | AT mingjianren generalizedandsymmetriccoprimeplanararrayfordirectionofarrivalestimation AT guopinghu generalizedandsymmetriccoprimeplanararrayfordirectionofarrivalestimation AT junpengshi generalizedandsymmetriccoprimeplanararrayfordirectionofarrivalestimation AT haozhou generalizedandsymmetriccoprimeplanararrayfordirectionofarrivalestimation |