Adaptive Beam-Forming Based on the Mutative Scale Chaos Optimization
In order to improve the SINR of the beam-former in the case of DOA mismatch, the paper raises the probability of constraint beam-forming algorithm based on mutative scale chaos optimization in connection with the worst performance of the best sound beam-forming algorithm. By introducing the probability constraints confidence interval and the signal vector error distribution law in the beam-forming, the constrained optimization problem is eventually turned into a nonlinear optimization problem. Then the global optimal weight is searched by the mutative scale chaos optimization method. Simulations have shown that the algorithm can significantly improve the SINR.
Z. W. Zhang et al., "Adaptive Beam-Forming Based on the Mutative Scale Chaos Optimization", Advanced Materials Research, Vols. 588-589, pp. 703-706, 2012