Null Steering In Phased Antenna Array System Using Amplitude Only GA and PSO

Authors

  • Palak N. Patel  Department of E & C Engg., Faculty of Technology, Dharmsinh Desai University, Nadiad, Gujarat, India
  • Rizwan Alad  Department of E & C Engg., Faculty of Technology, Dharmsinh Desai University, Nadiad, Gujarat, India
  • Ashish Pandya  Department of E & C Engg., Faculty of Technology, Dharmsinh Desai University, Nadiad, Gujarat, India
  • Prarthan Mehta  Department of E & C Engg., Faculty of Technology, Dharmsinh Desai University, Nadiad, Gujarat, India

Keywords:

GA, PSO, Phased Array Antenna, Sidelobe level, Signal-to-interference ratio, Null Steering

Abstract

Null steering in phased array antenna is used for synthesizing the array pattern with enforcing nulls in the direction of interference while simultaneously preserving the main beam in the direction of the desired signal with controlling sidelobe level. The prospective techniques are a GA and Particle Swarm Optimization to synthesize the amplitude excitation. In this paper, the GA and PSO both are applied to the Phased array antenna with half-wavelength dipole antennas at an equally spaced distance. The cost function is same for both the algorithm and analysis is taken in the form of sidelobe level (SLL), Signal-to-Interference Ratio (SIR) and simulation time are taken to optimize the amplitude excitation. Both algorithms are modified in terms of initial first excitation which is taken as Taylor amplitude excitation with SLL of -20dB.

References

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International Journal of Scientific Research in Science, Engineering and Technology

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Published

2018-04-10

Issue

Volume 4, Issue 5, March-April-2018

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Research Articles

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How to Cite

[1]
Palak N. Patel, Rizwan Alad, Ashish Pandya, Prarthan Mehta, " Null Steering In Phased Antenna Array System Using Amplitude Only GA and PSO , International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 4, Issue 5, pp.501-508, March-April-2018.