Presentation 2016-07-20
High Performance DOA Estimation Method with Coprime Array using Toeplitz Matrix
Anh-Tuan Nguyen, Takashi Matsubara, Takakazu Kurokawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) MUSIC and ESPRIT are high accuracy direction of arrival(DOA) estimation methods using uniform linear array antenna(ULA). However, there are problems that the cost burden increase when a lot of array elements are necessary in the situation with many arrival signals. Therefore, the coprime array has been proposed for DOA estimation to detect more arrival signals than the number of array elements. By using 2M+N-1 elements of a coprime array which is the union of a pair of N and 2M elements ULAs with the same first element, Pal et al. have propsed a spatial smoothing based method and this enables us to perform DOA estimation of MN signals. However, when M and N increase, this method has a problem that the estimation performance degrades significantly. In this research, a high performance DOA estimation method is proposed by using Toeplitz matrix and the numerical examples demonstrate validity of proposed method.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) ULA / DOA / Coprime / Coprime array / Toeplitz matrix
Paper # AP2016-39
Date of Issue 2016-07-13 (AP)

Conference Information
Committee AP / SAT / SANE
Conference Date 2016/7/20(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Otaru port marina
Topics (in Japanese) (See Japanese page)
Topics (in English) Remote sensing, Radio propagation, Antennas and Propagation, Sattelite Communication
Chair Keizo Cho(Chiba Inst. of Tech.) / Takatoshi Sugiyama(Kogakuin Univ.) / Hirokazu Kobayashi(Osaka Inst. of Tech.)
Vice Chair Hisato Iwai(Doshisha Univ.) / Toshinori Susuki(Tohoku Gakuin Univ.) / Hiroyuki Tsuji(NICT) / Takahide Mizuno(JAXA) / Toshifumi Moriyama(Nagasaki Univ.)
Secretary Hisato Iwai(Niigata Univ.) / Toshinori Susuki(NTT DoCoMo) / Hiroyuki Tsuji(NTT) / Takahide Mizuno(KDDI R&D Labs.) / Toshifumi Moriyama(JAXA)
Assistant Nobuyasu Takemura(Nippon Inst. of Tech.) / / Atsushi Kezuka(ENRI) / Manabu Akita(Univ. of Electro-Comm.)

Paper Information
Registration To Technical Committee on Antennas and Propagation / Technical Committee on Satellite Telecommunications / Technical Committee on Space, Aeronautical and Navigational Electronics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) High Performance DOA Estimation Method with Coprime Array using Toeplitz Matrix
Sub Title (in English)
Keyword(1) ULA
Keyword(2) DOA
Keyword(3) Coprime
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 2016-07-20
Paper # AP2016-39
Volume (vol) vol.116
Number (no) AP-142
Page pp.pp.13-18(AP),
#Pages 6
Date of Issue 2016-07-13 (AP)