Null Steering in Failed Antenna Arrays
Joint Authors
Patnaik, Amalendu
Sinha, Sachendra N.
Acharya, Om Prakash
Source
Applied Computational Intelligence and Soft Computing
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-07-14
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Information Technology and Computer Science
Abstract EN
Antenna array pattern nulling is desirable in order to suppress the interfering signals.
But in large antenna arrays, there is always a possibility of failure of some elements, which may degrade the radiation pattern with an increase in side lobe level (SLL) and removal of the nulls from desired position.
In this paper a correction procedure is introduced based on Particle Swarm Optimization (PSO) which maintains the nulling performance of the failed antenna array.
Considering the faulty elements as nonradiating elements, PSO reoptimizes the weights of the remaining radiating elements to reshape the pattern.
Simulation results for a Chebyshev array with imposed single, multiple, and broad nulls with failed antenna array are presented.
American Psychological Association (APA)
Acharya, Om Prakash& Patnaik, Amalendu& Sinha, Sachendra N.. 2011. Null Steering in Failed Antenna Arrays. Applied Computational Intelligence and Soft Computing،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-490990
Modern Language Association (MLA)
Acharya, Om Prakash…[et al.]. Null Steering in Failed Antenna Arrays. Applied Computational Intelligence and Soft Computing No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-490990
American Medical Association (AMA)
Acharya, Om Prakash& Patnaik, Amalendu& Sinha, Sachendra N.. Null Steering in Failed Antenna Arrays. Applied Computational Intelligence and Soft Computing. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-490990
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-490990
