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3-3-1.c
/*中国系统分析员顾问团，http://www.csai.cn*/
/*程序员下午考试指南书籍源码*/
#include
#include
#include
#define CR 13
typedef struct node{
char ch;
struct node *forward; /* Link to ne
problem_3_3_a.m
clear all;
iio=0;
for omega=-pi:.001:pi;
iio=iio+1;
X(iio)=cos(omega/2)*cos(omega)*exp(-j*1.5*omega);
end,
figure (1);omega=-pi:.001:pi;plot(omega,abs(X),'r');
axis([-pi pi 0 1]);xl
lesson3_3.c
#include
#define uint unsigned int
#define uchar unsigned char
sbit dula=P2^6;
sbit wela=P2^7;
sbit d1=P1^0;
uchar num;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x0
lesson3_3.lst
C51 COMPILER V6.12 LESSON3_3 07/23/2007 10:58:47 PAGE 1
C51 COMPILER V6.12, COMPILATION OF MODULE LESSON3_3
OBJECT MODULE PLACED
f3_3.m
%线性调频信号
sig=fmlin(256);
%频率
f=0:0.05:0.5;
%时间
t=3:256;
%瞬时频率估计
ifr=instfreq(sig);
%群延迟估计
gd=sgrpdlay(sig,f);
%显示结果
plot(t,ifr','LineWidth',2);
hold on
plot(gd,f,'o--','LineWidth',2);
leg
exp3_3.m
clc
clear
a1=[1 4 4;2 2 1;3 6 2];
b1=[0 1 0;1 0 0;0 0 1];
c1=[0 0 1;0 1 1];d1=[0 1 0;1 0 1];
a2=[1 -1 0;3 -2 1;1 6 -1];
b2=[1 0 0;0 1 0;0 0 1];
c2=[0 1 0;1 0 1];d2=[1 1 0;1 0 1];
% 部分并联后的状态空间，