p74_30.m

eda实例DSP上机程序

%%%%%%%%%%%%%%%%%% 数字信号处理第二章习题P74第30小题程序%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
clc
clear
A=[3,-3.98,1.17,2.3418,-1.5147];
p=roots(A)
pm=abs(p)
if max(pm<1)
    disp('系统因果稳定');
else
    disp('系统非因果稳定');
end