A Study of Music and LMS Algorithms for Smart Antenna System

This paper presents practical design of a smart antenna system based on direction-of-arrival estimation and adaptive beam forming. Direction-of-arrival estimation is based on the MUSIC algorithm for identifying the directions of the source signals incident on the sensor array comprising the smart an...

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Bibliographic Details
Published inInternational journal of electronics, communication and soft computing science and engineering Vol. 2; no. 2; p. 35
Main Authors Salunke, D B, Kawitkar, R S
Format Journal Article
LanguageEnglish
Published Amravati International Journal of Electronics, Communication and Soft Computing Science and Engineering 01.08.2012
Subjects
Algorithms
Beamforming
Beams (radiation)
Design engineering
Hardware
Sensor arrays
Smart antenna systems
Soft computing
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Summary:This paper presents practical design of a smart antenna system based on direction-of-arrival estimation and adaptive beam forming. Direction-of-arrival estimation is based on the MUSIC algorithm for identifying the directions of the source signals incident on the sensor array comprising the smart antenna system. Adaptive beam forming is achieved using the LMS algorithm for directing the main beam towards the desired source signals and generating deep nulls in the directions of interfering signals. The smart antenna system design involves a hardware part which provides real data measurements of the incident signals received by the sensor array. Results obtained verify the improved performance of the smart antenna system when the practical measurements of the signal environment surrounding the sensor array are used. This takes the form of sharper peaks in the MUSIC angular spectrum and deep nulls in the LMS array beam pattern.
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ISSN:2277-9477