0001 0002 function [ciaf,logciaf]=ngan(fc,N) 0003 0004 f=linspace(0,fc,N); 0005 H=(0.31+0.69*f).*exp(-0.29*f); 0006 A=(1/4+(1/pi^2)*(log(2*pi*f/11.636+sqrt(4*pi^2*f.^2/11.636^2+1))).^2).^(1/2); 0007 ciaf=A.*H; 0008 logciaf=log(A.*H)/log(2);