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MVDR beamformer model for array response vector mismatch reduction

Suhail Najm, Shahab and Ayib Rosdi, Zainun and Nurul Hazlina, Noordin and Izzeldin, I. Mohd and Essa Ibrahim, Essa and A. Omar, Khaldoon (2017) MVDR beamformer model for array response vector mismatch reduction. In: Communication, Management and Information Technology. CRC Press, Leiden, The Netherlands, pp. 131-138. ISBN 978-1-315-37508-3 (online); 9781138029729 (printed)

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Abstract

Beamforrming algorithms attempt to extract a desired User-OF-Interest (UOl) from the background noise and interfering signals. The performance of the beamforming algorithm is evaluated based on various QoS criteria such as beampattern accuracy and signal-to-lnterference-plus-Noise-Ratio (SINR). In this paper, the null-forming constrain is added to the single linear constrain of Minimum Variance Distortionless Response (MVDR) to overcome the effect of finite snapshots problem and the array response vector imprecision. This constraint addition improves the null-forming at the User-Nol-Of InlereKi (UNOI) direction. This work presents a new approach for extract the accurate array response vec-tor. Numerical results show the robustness of the proposed approach to alleviating finite data snapshots effect- Moreover, this technique minimizes the sidelobe level, accurate beam shape lo the UOI direction and pattern null in the UNOIs directions,

Item Type: Book Section
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Faculty/Division: Faculty of Electrical & Electronic Engineering
Depositing User: Pn. Hazlinda Abd Rahman
Date Deposited: 12 May 2017 07:30
Last Modified: 12 Apr 2018 07:07
URI: http://umpir.ump.edu.my/id/eprint/17571
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