Bacteria Foraging Optimization in Antenna Engineering: An Application to Array Fault Finding

Choudhury, Balamati and Om Prakash, Acharya and Amalendu, Patnaik (2013) Bacteria Foraging Optimization in Antenna Engineering: An Application to Array Fault Finding. International Journal of RF and Microwave Computer-Aided Engineering , 23 (2). pp. 141-148.

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      Abstract

      Finding fault elements in linear antenna arrays using bacteria foraging optimization (BFO) is presented. One of the better options of array diagnosis is to perform it by measuring the radiated field, because in this case, removal of the array from its working site is not required and thereby not interrupting its normal operation. This task of fault finding from far-field data is designed as an optimization problem where the difference between the far-field power pattern obtained for a given configuration of failed element(s) and the measured one is minimized w. r. t. the excitations of the array elements. This set of excitations on comparison with the excitations of the original array gives the idea of the fault position and their type, such as either complete fault or partial fault. BFO being relatively new to microwave community when compared with other soft-computing techniques, its performance was observed w. r. t. time of computation and convergence of the iterative process. Possibility of finding the faults from random sample points and use of minimum number of sample points for array fault finding are the novelties of the present work.

      Item Type: Journal Article
      Uncontrolled Keywords: antenna array; array fault finding; bacteria foraging optimization
      Subjects: AERONAUTICS > Aircraft Communication & Navigation
      ENGINEERING > Communications and Radar
      Division/Department: CEM Lab, Other, Other
      Depositing User: Ms Indrani V
      Date Deposited: 02 Apr 2013 10:52
      Last Modified: 02 Apr 2013 10:52
      URI: http://nal-ir.nal.res.in/id/eprint/11544

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