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【信號處理】頻譜分析儀含Matlab源碼

時間:2022-04-21 來源: 瀏覽:

【信號處理】頻譜分析儀含Matlab源碼

天天Matlab 天天Matlab
天天Matlab

TT_Matlab

博主簡介:擅長智能優(yōu)化算法、神經(jīng)網(wǎng)絡(luò)預(yù)測、信號處理、元胞自動機、圖像處理、路徑規(guī)劃、無人機等多種領(lǐng)域的Matlab仿真,完整matlab代碼或者程序定制加qq1575304183。

收錄于話題 #信號處理應(yīng)用matlab源碼 195個

1 簡介

1.在matlab中運行ch4.m文件可進入GUI界面

2.讀入WAV文件輸入方式需要將*.wav格式文件放置在  “...頻譜分析儀”  根目錄下,再在GUI界面文件名輸入欄中輸入 “XXX.wav”

  再 “打開文件” 按鍵,即可打開wav文件。  對于多聲道文件,可選擇需要讀入的聲道,默認(rèn)為讀入1聲道。

3.在每次進行時域分析和頻域分析之前,請對分析點的數(shù)目進行核對,如果分析點數(shù)超過了采樣點數(shù),

可通過勾選 “分析所有點”選擇框 進行調(diào)整即可。

4.時程曲線下面的兩個滾軸,上面的滾軸為比例調(diào)整滾軸,可調(diào)整圖像顯示的比例;下面的滾軸為橫坐標(biāo)平移滾軸,可調(diào)整x軸的顯示范圍;

5.右下角的滾軸是五條譜曲線的比例調(diào)整滾軸。

6.界面退出請點擊右上角紅色關(guān)閉按鈕;

2 部分代碼

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 仿真結(jié)果

4 參考文獻

[1]陳華麗. "基于LabVIEW和MATLAB的頻譜分析儀設(shè)計." 計量與測試技術(shù) 34.9(2007):2.

博主簡介:擅長智能優(yōu)化算法、神經(jīng)網(wǎng)絡(luò)預(yù)測、信號處理、元胞自動機、圖像處理、路徑規(guī)劃、無人機等多種領(lǐng)域的Matlab仿真,相關(guān)matlab代碼問題可私信交流。

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