www.pudn.com > VAD-DTW-HMM.rar > mixture.m

function prob = mixture(mix, x) 
%计算输出概率 
%输入: 
%  mix  -- 混合高斯结构 
%  x    -- 输入向量, SIZE*1 
%输出: 
%  prob -- 输出概率 
 
prob = 0; 
for j = 1:mix.M 
	m = mix.mean(j,:); 
	v = mix.var (j,:); 
	w = mix.weight(j); 
	prob = prob + w * pdf(m, v, x); 
end 
 
% 加上realmin, 以防止viterbi.m中计算log(prob)时溢出 
if prob==0, prob=realmin; end