A Simple and Explicit Formulation of Non-Unique Wiener Filters for Linear Predictor with Rank-Deficient Autocorrelation Matrix. - Shunsuke Koshita; Masahide Abe; Masayuki Kawamata; Takaaki Ohnari; Tomoyuki Kawasaki; Shogo Miura (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016)