Optimization of array pattern for efficient control of adaptive nulling and side lobe level

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Abstract

The array synthesis problem is modeled as a nonlinear optimization problem with the constraints of a reduced side lobe level (SLL). The goal is to impose deeper nulls in the interference direction of an uniform linear antenna arrays. This paper focuses on the array synthesis of adaptive nulling and side lobe level control which is a highly nonlinear problem fit for an evolutionary optimization algorithm. The limitations with the available optimization algorithms are mainly subjected to premature convergence and stagnation problem hence resulting in a non satisfactory array synthesis results. Hence, a new optimization technique known as Collective Social Behavior (CSB) is developed with concepts adopted from evolution of social behavior to address the current limitations to achieve a better result in array synthesis problem. The optimal set of weight coefficients for the linear antenna arrays is determined by the CSB algorithm by evaluating the objective function for the array synthesis problem. To establish the CSB algorithm as an efficient optimization tool for adaptive nulling applications, several numerical benchmark tests have been conducted. The simulation results reveal that the proposed CSB algorithm enhances the performance of array pattern synthesis with precise deeper nulls and suppressed side lobe levels.

Original languageEnglish
Title of host publication4th IEEE Conference on Communication, Networks and Satellite, COMNESTAT 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages16-21
Number of pages6
ISBN (Electronic)9781467382496
DOIs
Publication statusPublished - 15 Mar 2016
Event4th IEEE International Conference on Communication, Networks and Satellite, COMNESTAT 2015 - Bandung, Indonesia
Duration: 10 Dec 201512 Dec 2015

Publication series

Name4th IEEE Conference on Communication, Networks and Satellite, COMNESTAT 2015 - Proceedings

Other

Other4th IEEE International Conference on Communication, Networks and Satellite, COMNESTAT 2015
CountryIndonesia
CityBandung
Period10/12/1512/12/15

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All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Computer Networks and Communications

Cite this

Sankar, K. P., Sieh Kiong, T., & Koh Siaw Paw, J. (2016). Optimization of array pattern for efficient control of adaptive nulling and side lobe level. In 4th IEEE Conference on Communication, Networks and Satellite, COMNESTAT 2015 - Proceedings (pp. 16-21). [7434303] (4th IEEE Conference on Communication, Networks and Satellite, COMNESTAT 2015 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/COMNETSAT.2015.7434303