1 简介
1.在matlab中运行ch4.m文件可进入GUI界面
2.读入WAV文件输入方式需要将*.wav格式文件放置在 “...\频谱分析仪” 根目录下，再在GUI界面文件名输入栏中输入 “XXX.wav”
再 “打开文件” 按键，即可打开wav文件。 对于多声道文件，可选择需要读入的声道，默认为读入1声道。
3.在每次进行时域分析和频域分析之前，请对分析点的数目进行核对，如果分析点数超过了采样点数，
可通过勾选 “分析所有点”选择框 进行调整即可。
4.时程曲线下面的两个滚轴，上面的滚轴为比例调整滚轴，可调整图像显示的比例；下面的滚轴为横坐标平移滚轴，可调整x轴的显示范围；
5.右下角的滚轴是五条谱曲线的比例调整滚轴。
6.界面退出请点击右上角红色关闭按钮；
2 部分代码
function varargout = ch4(varargin)
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @ch4_OpeningFcn, ...
'gui_OutputFcn', @ch4_OutputFcn, ...
'gui_LayoutFcn', [] , ...
'gui_Callback', []);
if nargin && ischar(varargin{1})
gui_State.gui_Callback = str2func(varargin{1});
end
function channel_Callback(hObject, eventdata, handles)
% hObject handle to channel (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of channel as text
% str2double(get(hObject,'String')) returns contents of channel as a double
% --- Executes during object creation, after setting all properties.
function channel_CreateFcn(hObject, eventdata, handles)
% hObject handle to channel (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc
set(hObject,'BackgroundColor','white');
else
set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end
% --- Executes on selection change in wavetype.
function wavetype_Callback(hObject, eventdata, handles)
% hObject handle to wavetype (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: contents = get(hObject,'String') returns wavetype contents as cell array
% contents{get(hObject,'Value')} returns selected item from wavetype
% --- Executes during object creation, after setting all properties.
function wavetype_CreateFcn(hObject, eventdata, handles)
% hObject handle to wavetype (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: popupmenu controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc
set(hObject,'BackgroundColor','white');
else
set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end
% --- Executes during object deletion, before destroying properties.
function add_DeleteFcn(hObject, eventdata, handles)
% hObject handle to add (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% --- Executes on slider movement.
function xmove_Callback(hObject, eventdata, handles)
% hObject handle to xmove (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'Value') returns position of slider
% get(hObject,'Min') and get(hObject,'Max') to determine range of slider
val=get(handles.scale,'value');
val=10^(val*5+1);
x=get(hObject,'Value')*str2double(get(handles.samplenum,'String'));
axis(handles.time,[x val+x min(handles.y) max(handles.y)]);
% --- Executes during object creation, after setting all properties.
function xmove_CreateFcn(hObject, eventdata, handles)
% hObject handle to xmove (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: slider controls usually have a light gray background, change
% 'usewhitebg' to 0 to use default. See ISPC and COMPUTER.
usewhitebg = 1;
if usewhitebg
set(hObject,'BackgroundColor',[.9 .9 .9]);
else
set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end
% --- Executes on button press in analyseall.
function analyseall_Callback(hObject, eventdata, handles)
% hObject handle to analyseall (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
if get(hObject,'Value')==0.0
set(handles.pointfrom,'Enable','on');
set(handles.pointto,'Enable','on');
else
set(handles.pointfrom,'String','1','Enable','off');
set(handles.pointto,'String',get(handles.samplenum,'String'),'Enable','off');
end
function outt_Callback(hObject, eventdata, handles)
% hObject handle to outt (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of outt as text
% str2double(get(hObject,'String')) returns contents of outt as a double
% --- Executes during object creation, after setting all properties.
function outt_CreateFcn(hObject, eventdata, handles)
% hObject handle to outt (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc
set(hObject,'BackgroundColor','white');
else
set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end
function foutt_Callback(hObject, eventdata, handles)
% hObject handle to foutt (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of foutt as text
% str2double(get(hObject,'String')) returns contents of foutt as a double
% --- Executes during object creation, after setting all properties.
function foutt_CreateFcn(hObject, eventdata, handles)
% hObject handle to foutt (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc
set(hObject,'BackgroundColor','white');
else
set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end
% --- Executes when selected object is changed in uipanel9.
function uipanel9_SelectionChangeFcn(hObject, eventdata, handles)
% hObject handle to the selected object in uipanel9
% eventdata structure with the following fields (see UIBUTTONGROUP)
% EventName: string 'SelectionChanged' (read only)
% OldValue: handle of the previously selected object or empty if none was selected
% NewValue: handle of the currently selected object
% handles structure with handles and user data (see GUIDATA)
switch get(hObject,'Tag')
case 'soundcard'
set(findobj('Tag','recordtime'),'enable','on');
h=findobj('Tag','filename');
set(h,'enable','off');
h=findobj('Tag','freq');
set(h,'enable','off');
h=findobj('Tag','amp');
set(h,'enable','off');
h=findobj('Tag','phase');
set(h,'enable','off');
set(handles.channel,'enable','off');
set(handles.fileopen,'enable','off');
set(handles.gensig,'enable','off');
set(handles.wavetype,'enable','off');
set(handles.add,'enable','off');
set(handles.startrecord,'enable','on');
case 'WAVfile'
h=findobj('Tag','filename');
set(h,'enable','on');
h=findobj('Tag','freq');
set(h,'enable','off');
h=findobj('Tag','amp');
set(h,'enable','off');
h=findobj('Tag','phase');
set(h,'enable','off');
set(findobj('Tag','recordtime'),'enable','off');
set(handles.channel,'enable','on');
set(handles.fileopen,'enable','on');
set(handles.gensig,'enable','off');
set(handles.wavetype,'enable','off');
set(handles.add,'enable','off');
set(handles.startrecord,'enable','off');
case 'generator'
h=findobj('Tag','filename');
set(h,'enable','off');
h=findobj('Tag','freq');
set(h,'enable','on');
h=findobj('Tag','amp');
set(h,'enable','on');
h=findobj('Tag','phase');
set(h,'enable','on');
set(findobj('Tag','recordtime'),'enable','off');
set(handles.channel,'enable','off');
set(handles.fileopen,'enable','off');
set(handles.gensig,'enable','on');
set(handles.wavetype,'enable','on');
set(handles.add,'enable','on');
set(handles.startrecord,'enable','off');
end
function edit27_Callback(hObject, eventdata, handles)
% hObject handle to filename (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of filename as text
% str2double(get(hObject,'String')) returns contents of filename as a double
% --- Executes during object creation, after setting all properties.
function edit27_CreateFcn(hObject, eventdata, handles)
% hObject handle to filename (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
function edit28_Callback(hObject, eventdata, handles)
% hObject handle to freq (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of freq as text
% str2double(get(hObject,'String')) returns contents of freq as a double
% --- Executes during object creation, after setting all properties.
function edit28_CreateFcn(hObject, eventdata, handles)
% hObject handle to freq (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
function edit29_Callback(hObject, eventdata, handles)
% hObject handle to amp (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of amp as text
% str2double(get(hObject,'String')) returns contents of amp as a double
% --- Executes during object creation, after setting all properties.
function edit29_CreateFcn(hObject, eventdata, handles)
% hObject handle to amp (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
function edit30_Callback(hObject, eventdata, handles)
% hObject handle to phase (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of phase as text
% str2double(get(hObject,'String')) returns contents of phase as a double
% --- Executes during object creation, after setting all properties.
function edit30_CreateFcn(hObject, eventdata, handles)
% hObject handle to phase (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
function edit31_Callback(hObject, eventdata, handles)
% hObject handle to recordtime (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of recordtime as text
% str2double(get(hObject,'String')) returns contents of recordtime as a double
% --- Executes during object creation, after setting all properties.
function edit31_CreateFcn(hObject, eventdata, handles)
% hObject handle to recordtime (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
% --- Executes on button press in startrecord.
function pushbutton8_Callback(hObject, eventdata, handles)
% hObject handle to startrecord (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 fileopen.
function pushbutton9_Callback(hObject, eventdata, handles)
% hObject handle to fileopen (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 gensig.
function pushbutton10_Callback(hObject, eventdata, handles)
% hObject handle to gensig (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
function edit32_Callback(hObject, eventdata, handles)
% hObject handle to channel (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of channel as text
% str2double(get(hObject,'String')) returns contents of channel as a double
% --- Executes during object creation, after setting all properties.
function edit32_CreateFcn(hObject, eventdata, handles)
% hObject handle to channel (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
% --- Executes on selection change in wavetype.
function popupmenu2_Callback(hObject, eventdata, handles)
% hObject handle to wavetype (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: contents = cellstr(get(hObject,'String')) returns wavetype contents as cell array
% contents{get(hObject,'Value')} returns selected item from wavetype
% --- Executes during object creation, after setting all properties.
function popupmenu2_CreateFcn(hObject, eventdata, handles)
% hObject handle to wavetype (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: popupmenu controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
% --- Executes on button press in add.
function checkbox3_Callback(hObject, eventdata, handles)
% hObject handle to add (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hint: get(hObject,'Value') returns toggle state of add
% --- Executes on button press in add.
function add_Callback(hObject, eventdata, handles)
% hObject handle to add (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hint: get(hObject,'Value') returns toggle state of add
3 仿真结果
4 参考文献
[1]陈华丽. "基于LabVIEW和MATLAB的频谱分析仪设计." 计量与测试技术 34.9(2007):2.
博主简介：擅长智能优化算法、神经网络预测、信号处理、元胞自动机、图像处理、路径规划、无人机等多种领域的Matlab仿真，相关matlab代码问题可私信交流。
部分理论引用网络文献，若有侵权联系博主删除。
