Null Steering of Adaptive Beamforming Using Linear  Constraint Minimum Variance Assisted by Particle  Swarm Optimization, Dynamic Mutated Artificial Immune System, and Gravitational Search Algorithm

<table>Comparison of performance of power response LCMV, PSO-LCMV, DM-AIS-LCMV, and GSA-LCMV for user at 0° with interference at 20° by using 4 elements.</table>

The Scientific World Journal

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Figure 1: Null Steering of Adaptive Beamforming Using Linear  Constraint Minimum Variance Assisted by Particle  Swarm Optimization, Dynamic Mutated Artificial Immune System, and Gravitational Search Algorithm 

Figure 1 | Null Steering of Adaptive Beamforming Using Linear  Constraint Minimum Variance Assisted by Particle  Swarm Optimization, Dynamic Mutated Artificial Immune System, and Gravitational Search Algorithm 