NDLI: Behavior of modified MVDR beamformer algorithm with realistic scenario

Content Provider	IEEE Xplore Digital Library
Author	Khaldoon, A. Omar Rahman, Md. Mijanur Hassnawi, L. A. Ahmad, R. Badlishah Balasem, S. S.
Copyright Year	2014
Description	Author affiliation: School of Computer and Communication Engineering, University Malaysia Perlis, Malaysia, Pauh Putra, 02600 Arau, Perlis-Malaysia (Khaldoon, A. Omar; Rahman, Md. Mijanur; Hassnawi, L. A.; Ahmad, R. Badlishah) \|\| College of Engineering, University of Anbar, Iraq (Balasem, S. S.)
Abstract	Smart antenna is a system based on the antenna elements which are distributed uniformly as array and on the beamformig (BF) algorithm. Each element in the array receives the wave plane signals individually, and then, the beamformer tries to produce the optimum weight for each element with respect to the reference element in the array. This technique is called beamformig. MVDR is one of the most important algorithms that provide optimum weight. The array elements are weighted to direct the main beam of the transmitted energy to the direction of the desired signal as well as direct null towards undesired signal. Mismatch may be occurs due to the location of reference element within the array. Mismatch in MVDR leads to suppress the desired signal and treats as interference. This paper presents a new technique to re-localize the selected reference element within the array. The reference element is chosen to be in the middle of the array instead of one end side of the array. The new location becomes more realistic with respect to received signals directions. Simulation results clarify that the modified MVDR overcomes the mismatch and self null phenomena in classical MVDR.
Starting Page	127
Ending Page	131
File Size	648369
Page Count	5
File Format	PDF
ISBN	9781479961030
DOI	10.1109/ICED.2014.7015784
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-08-19
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Steering vectors Array signal processing MVDR Noise Signal processing algorithms Interference Beamformer Vectors Smart antenna Arrays Uniform linear array Antenna arrays
Content Type	Text
Resource Type	Article

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