ip_04_09.m

现代通信系统（prokis）的所有matlab源程序,对初学者很有帮助的。

% MATLAB script for Illustrative Problem 4.9.
clear
echo on
t=[0:0.01:10];
a=sin(t);
[sqnr8,aquan8,code8]=u_pcm(a,8);
[sqnr16,aquan16,code16]=u_pcm(a,16);
pause	% Press a key to see the SQNR for N = 8.
sqnr8
pause	% Press a key to see the SQNR for N = 16.
sqnr16
pause	% Press a key to see the plot of the signal and its quantized versions.
plot(t,a,'-',t,aquan8,'-.',t,aquan16,'-',t,zeros(1,length(t)))