LMMSE线性最小均方估计

%-------------------------------逆系统识别---------------------------------
%-      Date  : 
%-      By    : 
%- Description：1.通过h_sel选择ISI信道系数；
%-              2.SNR调整信噪比；
%-              3.threshold可以调整门限。
%-------------------------------------------------------------------------
clear;
ha=[0.04-0.050.07-0.21-0.50.720.3600.210.030.07]‘;        
hb=[0.4070.8150.407]‘;                                            
hc=[0.2270.460.68880.460.227]‘;                                
h_sel = hb;                 
h_order = length（h_sel）;    
N=1000;                     

xR=randint（1 N）;
xI=randint（1 N）;
for i=1:N;          
    if xR（i）==0;
        xR（i）=-1;
    end
    if xI（i）==0;
        xI（i）=-1;
    end
end                          

xk_source=（xR+1j*xI）/