| Presentation | 2016-12-08 High Performance DOA Estimation Method for Copime Arrays and Nested Arrays Anh-Tuan Nguyen, Takashi Matsubara, Takakazu Kurokawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we consider a coprime array or nested array. Pal et al. have proposed a method to extend these arrays to a larger virtual array and implemented the spatial smoothing technique to make the covariance matrix of a virtual uniform linear array (ULA), hence the MUSIC, ESPRIT algorithms can be applied to detect more sources than the number of array elements. However, in Pal's method, since the full information of received signals of the covariance matrix is not used, the performance of direction of arrival (DOA) estimation may be limited in some scenarios. On the other hand, the application of the spatial smoothing increases the computational burden rapidly when the number of subarray elements increases. By exploiting the full information of the observation vector obtained by vectorizing the covariance matrix of received signals of the original array, and using Toeplitz matrix to form the covariance matrix of the virtual ULA, we propose a high performance DOA estimation method. It is shown by computer simulations that the proposed method has better estimation accuracy and lower computational complexity than the Pal's method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ULA / DOA estimation / Nested array / Coprime array / Toeplitz matrix |
| Paper # | AP2016-126 |
| Date of Issue | 2016-12-01 (AP) |
| Conference Information | |
| Committee | AP |
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| Conference Date | 2016/12/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antennas and Propagation, 50 anniversary memorial Lecture |
| Chair | Keizo Cho(Chiba Inst. of Tech.) |
| Vice Chair | Hisato Iwai(Doshisha Univ.) |
| Secretary | Hisato Iwai(Niigata Univ.) |
| Assistant | Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | High Performance DOA Estimation Method for Copime Arrays and Nested Arrays |
| Sub Title (in English) | |
| Keyword(1) | ULA |
| Keyword(2) | DOA estimation |
| Keyword(3) | Nested array |
| Keyword(4) | Coprime array |
| Keyword(5) | Toeplitz matrix |
| 1st Author's Name | Anh-Tuan Nguyen |
| 1st Author's Affiliation | National Defense Academy(NDA) |
| 2nd Author's Name | Takashi Matsubara |
| 2nd Author's Affiliation | National Defense Academy(NDA) |
| 3rd Author's Name | Takakazu Kurokawa |
| 3rd Author's Affiliation | National Defense Academy(NDA) |
| Date | 2016-12-08 |
| Paper # | AP2016-126 |
| Volume (vol) | vol.116 |
| Number (no) | AP-345 |
| Page | pp.pp.17-22(AP), |
| #Pages | 6 |
| Date of Issue | 2016-12-01 (AP) |