Conference proceeding
Modified MUSIC algorithm for doa estimation using CRLH leaky-wave antennas
8th International Conference on Cognitive Radio Oriented Wireless Networks
Jul 2013
Abstract
In this paper, we formulate and experimentally demonstrate direction of arrival (DoA) estimation with a two-port composite right/left handed (CRLH) leaky-wave antenna (LWA) using the multiple signal classification (MUSIC) algorithm. 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 MUSIC algorithm, uses both antenna's input ports to estimate the DoA. Conventionally, the MUSIC algorithm needs to calculate the correlation matrix from the output vector of an array of antenna elements. In this work, we show in detail how the correlation matrix can be computed when using leaky-wave antennas. The algorithm is demonstrated using LWA in an anechoic chamber and the estimated DoA results are in good agreement with the predicted angles.
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Details
- Title
- Modified MUSIC algorithm for doa estimation using CRLH leaky-wave antennas
- Creators
- Henna Paaso - VTT Tech. Res. Centre of Finland, Oulu, FinlandAarne Mammela - VTT Tech. Res. Centre of Finland, Oulu, FinlandDamiano Patron - Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USAKapil R Dandekar - Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA
- Publication Details
- 8th International Conference on Cognitive Radio Oriented Wireless Networks
- Publisher
- ICST - The Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Other Identifier
- 991014877876904721