【数字信号】基于matlab GUI双音多频(DTMF)信号检测【含Matlab源码 512期】

一、获取代码方式

获取代码方式1：
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二、双音多频(DTMF)信号简介

三、部分源代码

function varargout = mygui(varargin)
% MYGUI MATLAB code for mygui.fig
%      MYGUI, by itself, creates a new MYGUI or raises the existing
%      singleton*.
%
%      H = MYGUI returns the handle to a new MYGUI or the handle to
%      the existing singleton*.
%
%      MYGUI('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in MYGUI.M with the given input arguments.
%
%      MYGUI('Property','Value',...) creates a new MYGUI or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before mygui_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to mygui_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES% Edit the above text to modify the response to help mygui% Last Modified by GUIDE v2.5 09-Nov-2019 22:01:11% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...'gui_Singleton',  gui_Singleton, ...'gui_OpeningFcn', @mygui_OpeningFcn, ...'gui_OutputFcn',  @mygui_OutputFcn, ...'gui_LayoutFcn',  [] , ...'gui_Callback',   []);
if nargin && ischar(varargin{1})gui_State.gui_Callback = str2func(varargin{1});
endif nargout[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
elsegui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT
global SNR;% --- Executes just before mygui is made visible.
function mygui_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to mygui (see VARARGIN)% Choose default command line output for mygui
handles.output = hObject;% Update handles structure
guidata(hObject, handles);% UIWAIT makes mygui wait for user response (see UIRESUME)
% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line.
function varargout = mygui_OutputFcn(hObject, eventdata, handles)
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% Get default command line output from handles structure
varargout{1} = handles.output;% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
global SNR;%设置全局变量SNR
SNR=str2double(get(handles.edit2,'String'));%由信噪比输入框得到SNR
s='4';%此按钮对应的输入符号为'4'
y1=mysound(s);%得到加噪声后得dtft信号
y2=mygeortzel(y1);%戈泽尔算法解码
y3=georeceive(y2);
y4=myfft(y1);%FFT算法解码
set(handles.text17,'String',y3);%输出戈泽尔算法解码的值
set(handles.text12,'String',y4);%输出FFT算法解码得值
set(handles.text13,'string','4');%输出输入的原始键值% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
global SNR;
SNR=str2double(get(handles.edit2,'String'));
s='1';
y1=mysound(s);
y2=mygeortzel(y1);
y3=georeceive(y2);
y4=myfft(y1);
set(handles.text17,'String',y3);
set(handles.text12,'String',y4);
set(handles.text13,'string','1');% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
global SNR;
SNR=str2double(get(handles.edit2,'String'));
s='7';
y1=mysound(s);
y2=mygeortzel(y1);
y3=georeceive(y2);
y4=myfft(y1);
set(handles.text17,'String',y3);
set(handles.text12,'String',y4);
set(handles.text13,'string','7');% hObject    handle to pushbutton3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton4.
function pushbutton4_Callback(hObject, eventdata, handles)
global SNR;
SNR=str2double(get(handles.edit2,'String'));
s='*';
y1=mysound(s);
y2=mygeortzel(y1);
y3=georeceive(y2);
y4=myfft(y1);
set(handles.text17,'String',y3);
set(handles.text12,'String',y4);
set(handles.text13,'string','*');% hObject    handle to pushbutton4 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton5.
function pushbutton5_Callback(hObject, eventdata, handles)
global SNR;
SNR=str2double(get(handles.edit2,'String'));
s='3';
y1=mysound(s);
y2=mygeortzel(y1);
y3=georeceive(y2);
y4=myfft(y1);
set(handles.text17,'String',y3);
set(handles.text12,'String',y4);
set(handles.text13,'string','3');% hObject    handle to pushbutton5 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton6.
function pushbutton6_Callback(hObject, eventdata, handles)
global SNR;
SNR=str2double(get(handles.edit2,'String'));
s='8';
y1=mysound(s);
y2=mygeortzel(y1);
y3=georeceive(y2);
y4=myfft(y1);
set(handles.text17,'String',y3);
set(handles.text12,'String',y4);
set(handles.text13,'string','8');% hObject    handle to pushbutton6 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton7.
function pushbutton7_Callback(hObject, eventdata, handles)
global SNR;
SNR=str2double(get(handles.edit2,'String'));
s='6';
y1=mysound(s);
y2=mygeortzel(y1);
y3=georeceive(y2);
y4=myfft(y1);
set(handles.text17,'String',y3);
set(handles.text12,'String',y4);
set(handles.text13,'string','6');% hObject    handle to pushbutton7 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton8.
function pushbutton8_Callback(hObject, eventdata, handles)
global SNR;
SNR=str2double(get(handles.edit2,'String'));
s='0';
y1=mysound(s);
y2=mygeortzel(y1);
y3=georeceive(y2);
y4=myfft(y1);
set(handles.text17,'String',y3);
set(handles.text12,'String',y4);
set(handles.text13,'string','0');% hObject    handle to pushbutton8 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton9.
function pushbutton9_Callback(hObject, eventdata, handles)
global SNR;
SNR=str2double(get(handles.edit2,'String'));
s='2';
y1=mysound(s);
y2=mygeortzel(y1);
y3=georeceive(y2);
y4=myfft(y1);
set(handles.text17,'String',y3);
set(handles.text12,'String',y4);
set(handles.text13,'string','2');% hObject    handle to pushbutton9 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton10.
function pushbutton10_Callback(hObject, eventdata, handles)
global SNR;
SNR=str2double(get(handles.edit2,'String'));
s='5';
y1=mysound(s);
y2=mygeortzel(y1);
y3=georeceive(y2);
y4=myfft(y1);
set(handles.text17,'String',y3);
set(handles.text12,'String',y4);
set(handles.text13,'string','5');% hObject    handle to pushbutton10 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton11.
function pushbutton11_Callback(hObject, eventdata, handles)
global SNR;
SNR=str2double(get(handles.edit2,'String'));
s='9';
y1=mysound(s);
y2=mygeortzel(y1);
y3=georeceive(y2);
y4=myfft(y1);
set(handles.text17,'String',y3);
set(handles.text12,'String',y4);
set(handles.text13,'string','9');% hObject    handle to pushbutton11 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton12.
function pushbutton12_Callback(hObject, eventdata, handles)
global SNR;
SNR=str2double(get(handles.edit2,'String'));
s='D';
y1=mysound(s);
y2=mygeortzel(y1);
y3=georeceive(y2);
y4=myfft(y1);
set(handles.text17,'String',y3);
set(handles.text12,'String',y4);
set(handles.text13,'string','D');% hObject    handle to pushbutton12 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton13.
function pushbutton13_Callback(hObject, eventdata, handles)
global SNR;

四、运行结果

五、matlab版本及参考文献

1 matlab版本
2014a

2 参考文献
[1] 沈再阳.精通MATLAB信号处理[M].清华大学出版社，2015.
[2]高宝建,彭进业,王琳,潘建寿.信号与系统——使用MATLAB分析与实现[M].清华大学出版社，2020.
[3]王文光,魏少明,任欣.信号处理与系统分析的MATLAB实现[M].电子工业出版社，2018.

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