?? mmse_pow.m
字號:
function H = mmse_pow(gamma,xihat)
% MMSE_POW - MMSE spectral power estimation (Wolfe and Godsill, 2001)
% H = MMSE_POW(GAMMA,XIHAT) returns the MMSE spectral power estimation
% filter H given a posteriori signal-to-noise ratio (SNR) GAMMA and an
% estimate XIHAT of a priori SNR. GAMMA and XIHAT may be arrays but must
% be of equal dimension.
%
% References:
%
% P. J. Wolfe and S. J. Godsill. Simple alternatives to the Ephraim and
% Malah suppression rule for speech enhancement. In Proc. IEEE Workshop on
% Statistical Signal Processing, pages 496-499, August 2001.
% Author: Patrick J. Wolfe
% Signal Processing Group
% Cambridge University Engineering Department
% p.wolfe@ieee.org
%
% Copyright (c) 2001 by Patrick J. Wolfe
% $Revision: 1.2 $ $Date: 2001/01/24 13:09:23 $
% MMSE spectral power estimation filter calculation
%
upsilon = gamma.*xihat./(1+xihat);
H = sqrt((xihat./(1+xihat)).*((1+upsilon)./gamma));
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -