Keywords :
Matrix Decomposition , homogeneous space , naturalgradient , Nonlinear estimation , Adaptive arrays , parameter estimation , Adaptive estimation , parameterspace methods , adaptivesignal processing , positive definitive matrices , Covariance matrices , Riemannian curvatur.e , Differential geometry , Riemannian manifold , Error analysis , Singular value decomposition. , Estimation , estimation bias , estimation efficiency , Fisher Information , Grassmann manifold , maximum likelihood estimaiton
