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f4_4.m
%产生非平稳信号
sig=real(amgauss(128).*fmlin(128));
%%时域波形
figure(1)
plot(sig,'LineWidth',2);
xlabel('时间 t');
ylabel('幅值 A');
%设置窗函数
h=ones(127,1);
%计算短时傅立叶变换
sig=hilbert(sig);
[tfr,t,f]=tfrstft(s
4-4.uv2
### uVision2 Project, (C) Keil Software
### Do not modify !
Target (Target 1), 0x0000 // Tools: 'MCS-51'
Group (Source Group 1)
File 1,2, 0x0
File 1,1,
4-4_opt.bak
### uVision2 Project, (C) Keil Software
### Do not modify !
cExt (*.c)
aExt (*.s*; *.src; *.a*)
oExt (*.obj)
lExt (*.lib)
tExt (*.txt; *.h; *.inc)
pExt (*.plm)
CppX (*.cpp)
DaveTm {
4-4.m51
BL51 BANKED LINKER/LOCATER V5.03 08/25/2005 10:49:02 PAGE 1
BL51 BANKED LINKER/LOCATER V5.03, INVOKED BY:
C:\KEIL\C51\BIN\BL51.EXE STARTU
algo4-4.cpp
// algo4-4.cpp 生成书名关键词索引文件bookidx.txt，算法4.9～4.14
// 为运行algo4-5.cpp做准备
#include"c1.h"
typedef int ElemType;
#include"c2-5.h"
#include"bo2-6.cpp"
#include"c4-2.h"
#include"bo4-2.cpp"
algo4-4.c
/* algo4-4.c 生成书名关键词索引文件bookidx.txt，算法4.9～4.14 */
/* 为运行algo4-5.c做准备 */
#include"c1.h"
typedef int ElemType;
#include"c2-5.h"
#include"bo2-6.c"
#include"c4-2.h"
#include"bo4-2.c"
#d
exa4_4.m
% exa4-4_Elliptic for example4-4
% Elliptic analog lowpass filter prototype
clear all;
n=0:0.01:2;
for i=1:4
switch i
case 1
N=2;
case 2
N=3;