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

Author

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  • Palak N. Patel
  • Rizwan Alad
  • Ashish Pandya
  • Prarthan Mehta

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.

Suggested Citation

  • Palak N. Patel & Rizwan Alad & Ashish Pandya & Prarthan Mehta, 2018. "Null Steering In Phased Antenna Array System Using Amplitude Only GA and PSO," International Journal of Scientific Research in Science, Engineering and Technology, International Journal of Scientific Research in Science, Engineering and Technology, vol. 4(5), pages 501-508, April.
    • Handle: RePEc:ijs:ijsrse:v4:y2018:i5:id:hec011
    Note: Article URL: https://ijsrset.com/EC011
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