一、获取代码方式
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});
end
if nargout
[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
gui_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.
