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7 的代码
f7_7.m
%正常人心律信号
%fid=fopen('normalecg.txt','r');
%充血性心脏心律信号
fid=fopen('heartfailure.txt','r');
%心室纤维颤动心律信号
%fid=fopen('atrialfib.txt','r');
x=fscanf(fid,'%f %f %f',[300 3]);
fclose(fid);
%采样频率
fs=
chap7_7.mdl
Model {
Name "chap7_7"
Version 3.00
SimParamPage "Solver"
SampleTimeColors off
InvariantConstants off
WideVectorLines off
ShowLineWidths off
ShowPortDataTypes
ch7_7.cpp
//*********************
//** ch7_7.cpp **
//*********************
#include
int maximum(int[][4],int,int);
void main()
{
int sg[3][4]={{68,77,73,86},
algo7-7.cpp
// algo7-7.cpp 实现算法7.16的程序
#define MAX_NAME 5 // 顶点字符串的最大长度+1
#define MAX_INFO 20 // 相关信息字符串的最大长度+1
typedef int VRType;
typedef char VertexType[MAX_NAME];
typedef char InfoType;
#include"
chap7_7.mdl
Model {
Name "chap7_7"
Version 3.00
SimParamPage "Solver"
SampleTimeColors off
InvariantConstants off
WideVectorLines off
ShowLineWidths off
ShowPortDataTypes
eg7-7.pas
program sort(input,output);
const
n=10;
var
a:array[1..n]of string[20];
temp:string[20];
i,j:integer;
begin
for i:=1 to n do
begin
readln(a[i]);
writeln(a[i]);
end;
for i:=1 to n-1 do
algo7-7.cpp
// algo7-7.cpp 实现算法7.16的程序
#define MAX_NAME 5 // 顶点字符串的最大长度+1
#define MAX_INFO 20 // 相关信息字符串的最大长度+1
typedef int VRType;
typedef char VertexType[MAX_NAME];
typedef char InfoType;
#include"
example7_7.m
%首先，创建包含了期望的频率响应的矩阵Hd
[f1,f2] = freqspace(21,'meshgrid');
Hd = zeros(21);
Hd(7:15,7:15) = 1;
Axis([-1 1 –1 1 0 1.2]),
colormap(jet(64))
mesh(f1,f2,Hd)
%期望的滤波器的频率响应见图7-16
%然后，设计通过此响应的滤波器
h