ABSTRACT
The Minimum Variance Distortionless Response (MVDR) or Capon beamformer (Capon, 1969) is one of the adaptive optimum statistical beamformers which assures a distortionless response for a predefined steering direction (Van Trees, 2002, Gross, 2015, Godara, 1997). The basic idea of the MVDR technique is to estimate the beamforming excitation coefficients in an adaptive way by minimizing the variance of the residual interference and noise whilst enforcing a set of linear constraints to ensure that the real user signal is not distorted (Pan et al., 2014).
