DoA estimation through modified unitary MUSIC algorithm for CRLH leaky-wave antennas

Henna Paaso; Aarne Mämmelä; Damiano D. Patron; Kapil R. Dandekar

doi:10.1109/PIMRC.2013.6666152

DoA estimation through modified unitary MUSIC algorithm for CRLH leaky-wave antennas

Henna Paaso, Aarne Mämmelä, Damiano D. Patron, Kapil R. Dandekar

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

8 Citations (Scopus)

Abstract

In this paper, we propose a modified unitary multiple signal classification (MUSIC) algorithm for a two-port composite right/left handed (CRLH) leaky-wave antenna (LWA). The algorithm requires only real-valued operations to estimate direction of arrival (DoA) of the received signals, which will simplify future hardware implementation. The CRLH LWA consists of a cascade of metamaterial unit cells, periodically modulated using varactor diodes. By changing the voltages across series and shunt varactors, the antenna is able to uniformly steer its radiation pattern. The proposed modified unitary MUSIC algorithm uses both antennas' input ports to estimate the DoA. Existing MUSIC implementations requires eigenvalue decomposition in the complex-valued signal subspace, which results in highly complex hardware implementation. The computational complexity can be reduced using our proposed modified unitary MUSIC algorithm since it transforms the complex-valued covariance matrix of the received signals to a real-valued matrix using unitary transformations. The performance of the algorithm is experimentally demonstrated by using a CRLH LWA within an anechoic chamber facility and the estimated DoA results are in good agreement with the predicted angles.

Original language	English
Title of host publication	2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
Publisher	IEEE Institute of Electrical and Electronic Engineers
Pages	311-315
Number of pages	5
ISBN (Electronic)	978-1-4673-6235-1
DOIs	https://doi.org/10.1109/PIMRC.2013.6666152
Publication status	Published - 11 Dec 2013
MoE publication type	A4 Article in a conference publication
Event	24th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 - London, United Kingdom Duration: 8 Sep 2013 → 11 Sep 2013 Conference number: 24

Conference

Conference	24th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
Abbreviated title	PIMRC'13
Country	United Kingdom
City	London
Period	8/09/13 → 11/09/13

Keywords

matrix decomposition
correlation
antenna arrays
multiple signal classification
direction-of-arrival estimation
estimation

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Paaso, H., Mämmelä, A., D. Patron, D., & Dandekar, K. R. (2013). DoA estimation through modified unitary MUSIC algorithm for CRLH leaky-wave antennas. In 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) (pp. 311-315). IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/PIMRC.2013.6666152

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title = "DoA estimation through modified unitary MUSIC algorithm for CRLH leaky-wave antennas",

abstract = "In this paper, we propose a modified unitary multiple signal classification (MUSIC) algorithm for a two-port composite right/left handed (CRLH) leaky-wave antenna (LWA). The algorithm requires only real-valued operations to estimate direction of arrival (DoA) of the received signals, which will simplify future hardware implementation. The CRLH LWA consists of a cascade of metamaterial unit cells, periodically modulated using varactor diodes. By changing the voltages across series and shunt varactors, the antenna is able to uniformly steer its radiation pattern. The proposed modified unitary MUSIC algorithm uses both antennas' input ports to estimate the DoA. Existing MUSIC implementations requires eigenvalue decomposition in the complex-valued signal subspace, which results in highly complex hardware implementation. The computational complexity can be reduced using our proposed modified unitary MUSIC algorithm since it transforms the complex-valued covariance matrix of the received signals to a real-valued matrix using unitary transformations. The performance of the algorithm is experimentally demonstrated by using a CRLH LWA within an anechoic chamber facility and the estimated DoA results are in good agreement with the predicted angles.",

keywords = "matrix decomposition, correlation, antenna arrays, multiple signal classification, direction-of-arrival estimation, estimation",

author = "Henna Paaso and Aarne M{\"a}mmel{\"a} and {D. Patron}, Damiano and Dandekar, {Kapil R.}",

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Paaso, H , Mämmelä, A, D. Patron, D & Dandekar, KR 2013, DoA estimation through modified unitary MUSIC algorithm for CRLH leaky-wave antennas. in 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC). IEEE Institute of Electrical and Electronic Engineers, pp. 311-315, 24th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013, London, United Kingdom, 8/09/13. https://doi.org/10.1109/PIMRC.2013.6666152

DoA estimation through modified unitary MUSIC algorithm for CRLH leaky-wave antennas. / Paaso, Henna ; Mämmelä, Aarne; D. Patron, Damiano; Dandekar, Kapil R.

2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC). IEEE Institute of Electrical and Electronic Engineers, 2013. p. 311-315.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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AU - D. Patron, Damiano

AU - Dandekar, Kapil R.

N1 - Conference code: 24

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N2 - In this paper, we propose a modified unitary multiple signal classification (MUSIC) algorithm for a two-port composite right/left handed (CRLH) leaky-wave antenna (LWA). The algorithm requires only real-valued operations to estimate direction of arrival (DoA) of the received signals, which will simplify future hardware implementation. The CRLH LWA consists of a cascade of metamaterial unit cells, periodically modulated using varactor diodes. By changing the voltages across series and shunt varactors, the antenna is able to uniformly steer its radiation pattern. The proposed modified unitary MUSIC algorithm uses both antennas' input ports to estimate the DoA. Existing MUSIC implementations requires eigenvalue decomposition in the complex-valued signal subspace, which results in highly complex hardware implementation. The computational complexity can be reduced using our proposed modified unitary MUSIC algorithm since it transforms the complex-valued covariance matrix of the received signals to a real-valued matrix using unitary transformations. The performance of the algorithm is experimentally demonstrated by using a CRLH LWA within an anechoic chamber facility and the estimated DoA results are in good agreement with the predicted angles.

AB - In this paper, we propose a modified unitary multiple signal classification (MUSIC) algorithm for a two-port composite right/left handed (CRLH) leaky-wave antenna (LWA). The algorithm requires only real-valued operations to estimate direction of arrival (DoA) of the received signals, which will simplify future hardware implementation. The CRLH LWA consists of a cascade of metamaterial unit cells, periodically modulated using varactor diodes. By changing the voltages across series and shunt varactors, the antenna is able to uniformly steer its radiation pattern. The proposed modified unitary MUSIC algorithm uses both antennas' input ports to estimate the DoA. Existing MUSIC implementations requires eigenvalue decomposition in the complex-valued signal subspace, which results in highly complex hardware implementation. The computational complexity can be reduced using our proposed modified unitary MUSIC algorithm since it transforms the complex-valued covariance matrix of the received signals to a real-valued matrix using unitary transformations. The performance of the algorithm is experimentally demonstrated by using a CRLH LWA within an anechoic chamber facility and the estimated DoA results are in good agreement with the predicted angles.

KW - matrix decomposition

KW - correlation

KW - antenna arrays

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KW - direction-of-arrival estimation

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BT - 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

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ER -