210721352320071231624507985735

Matlab to seperate 3 voices

this code is to remove the noise from video...........................

趋势面分析是拟合数学曲面的一种统计方法。通常要找到一个合适的曲面精确表达实际问题往往比较困难，但却可以利用多项式函数来近似逼近它。(trend surface analysis is fitting surfaces of a mathematical statistical methods. Usually to find a suitable surface accurately reflect the actual problems are often more difficult, but polynomial function can be used to approximating it.)

PURPOSE: MCMC estimates Bayesian heteroscedastic AR(k) model imposing stability restrictions using Gibbs sampling y = b0 + y(t-1) b1 + y(t-2) b2 +,...,y(t-k) bk + E, E = N(0,sige*V), sige = gamma(nu,d0), b = N(c,T), V = diag(v1,v2,...vn), r/vi = ID chi(r)/r, r = Gamma(m,k)( PURPOSE: MCMC estimates Bayesian heteroscedastic AR(k) model imposing stability restrictions using Gibbs sampling y = b0+ y(t-1) b1+ y(t-2) b2+,...,y(t-k) bk+ E, E = N(0,sige*V), sige = gamma(nu,d0), b = N(c,T), V = diag(v1,v2,...vn), r/vi = ID chi(r)/r, r = Gamma(m,k))

pcm编码，pcm编码pcm编码pcm编码pcm编码pcm编码pcm编码(pcm coding, pcm encoder pcm encoder pcm encoder pcm encoder pcm encoder pcm encoder)

是梳状滤波器，简单整系数的50Hz工频梳状滤波器，吉布斯振荡非常小。(The comb filter simple integer coefficients 50Hz frequency comb filter, Gibbs oscillations very small.)

matlab的语音处理工具包，具有语音处理的常用功能(speech signal processing tool boxes,it can be used to process speech signal,such as filter, silence detect.)

EA=R factorization in matlabn

This is the CRB caculated for an OFDM system to compair belind channel estimation. CRB is Cramer Rao bound and it is the lowest bound for analyzing the devlopement of algorithms of channel estimation.

说明：  谱估计的非参数DOA(Dorection of Arrive)方法----MUSIC(Multi Signal Classification，多重信号分类)算法(spectrum estimation of parameters DOA (Dorection of Arrive) method-M USIC (Multi Signal Classification, multiple signal classification) algorithm)