Fig. 4From: Deficient-basis-complementary rank-constrained spatial covariance matrix estimation based on multivariate generalized Gaussian distribution for blind speech extractionBehavior of the cost functions (12) except for the constant term under the babble noise condition in the proposed basis-optimizing RCSCMEs. The cost functions are averaged over 10 parameter-initialization random seeds. The shape parameter \(\rho\) in GGD is set to 2Back to article page