Robust Cyclic MUSIC Algorithm for Finding Directions in Impulsive Noise Environment
This paper addresses the issue of direction finding of a cyclostationary signal under impulsive noise environments modeled by α-stable distribution. Since α-stable distribution does not have finite second-order statistics, the conventional cyclic correlation-based signal-selective direction finding...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2017/9038341 |
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| author | Sen Li Xiaojing Chen Rongxi He |
| author_facet | Sen Li Xiaojing Chen Rongxi He |
| author_sort | Sen Li |
| collection | DOAJ |
| description | This paper addresses the issue of direction finding of a cyclostationary signal under impulsive noise environments modeled by α-stable distribution. Since α-stable distribution does not have finite second-order statistics, the conventional cyclic correlation-based signal-selective direction finding algorithms do not work effectively. To resolve this problem, we define two robust cyclic correlation functions which are derived from robust statistics property of the correntropy and the nonlinear transformation, respectively. The MUSIC algorithm with the robust cyclic correlation matrix of the received signals of arrays is then used to estimate the direction of cyclostationary signal in the presence of impulsive noise. The computer simulation results demonstrate that the two proposed robust cyclic correlation-based algorithms outperform the conventional cyclic correlation and the fractional lower order cyclic correlation based methods. |
| format | Article |
| id | doaj-art-4d586cae66134d5985b9db9d5de6039e |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-4d586cae66134d5985b9db9d5de6039e2025-02-03T01:10:20ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772017-01-01201710.1155/2017/90383419038341Robust Cyclic MUSIC Algorithm for Finding Directions in Impulsive Noise EnvironmentSen Li0Xiaojing Chen1Rongxi He2College of Information and Science Technology, Dalian Maritime University, Dalian 116026, ChinaCollege of Information and Science Technology, Dalian Maritime University, Dalian 116026, ChinaCollege of Information and Science Technology, Dalian Maritime University, Dalian 116026, ChinaThis paper addresses the issue of direction finding of a cyclostationary signal under impulsive noise environments modeled by α-stable distribution. Since α-stable distribution does not have finite second-order statistics, the conventional cyclic correlation-based signal-selective direction finding algorithms do not work effectively. To resolve this problem, we define two robust cyclic correlation functions which are derived from robust statistics property of the correntropy and the nonlinear transformation, respectively. The MUSIC algorithm with the robust cyclic correlation matrix of the received signals of arrays is then used to estimate the direction of cyclostationary signal in the presence of impulsive noise. The computer simulation results demonstrate that the two proposed robust cyclic correlation-based algorithms outperform the conventional cyclic correlation and the fractional lower order cyclic correlation based methods.http://dx.doi.org/10.1155/2017/9038341 |
| spellingShingle | Sen Li Xiaojing Chen Rongxi He Robust Cyclic MUSIC Algorithm for Finding Directions in Impulsive Noise Environment International Journal of Antennas and Propagation |
| title | Robust Cyclic MUSIC Algorithm for Finding Directions in Impulsive Noise Environment |
| title_full | Robust Cyclic MUSIC Algorithm for Finding Directions in Impulsive Noise Environment |
| title_fullStr | Robust Cyclic MUSIC Algorithm for Finding Directions in Impulsive Noise Environment |
| title_full_unstemmed | Robust Cyclic MUSIC Algorithm for Finding Directions in Impulsive Noise Environment |
| title_short | Robust Cyclic MUSIC Algorithm for Finding Directions in Impulsive Noise Environment |
| title_sort | robust cyclic music algorithm for finding directions in impulsive noise environment |
| url | http://dx.doi.org/10.1155/2017/9038341 |
| work_keys_str_mv | AT senli robustcyclicmusicalgorithmforfindingdirectionsinimpulsivenoiseenvironment AT xiaojingchen robustcyclicmusicalgorithmforfindingdirectionsinimpulsivenoiseenvironment AT rongxihe robustcyclicmusicalgorithmforfindingdirectionsinimpulsivenoiseenvironment |