lowpass.m

matlab做的可视化界面

end
%-----------------------------------------------------------------

function [b,a,n]=bandstopfilter(fs,wp,ws,rp,rs,as,ap,point)
lowpass_sel_index = point;
switch lowpass_sel_index
    case 1
     [n,wn]=buttord([wp/fs/2 ws/fs/2],[rp/fs/2,rs/fs/2],ap,as);
[b,a]=butter(n,wn,'stop');
    case 2
       [n,wn]=cheb1ord([wp/fs/2 ws/fs/2],[rp/fs/2,rs/fs/2],ap,as);
[b,a]=cheby1(n,ap,wn,'stop');
    case 3
            [n,wn]=cheb2ord([wp/fs/2 ws/fs/2],[rp/fs/2,rs/fs/2],ap,as);
[b,a]=cheby2(n,ap,wn,'stop');
    case 4
     [n,wn]=ellipord([wp/fs/2 ws/fs/2],[rp/fs/2,rs/fs/2],ap,as);
[b,a]=ellip(n,ap,as,wn,'stop');

end







function Hf_fs_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Hf_fs (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 Hf_fs_Callback(hObject, eventdata, handles)
% hObject    handle to Hf_fs (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 Hf_fs as text
%        str2double(get(hObject,'String')) returns contents of Hf_fs as a double
 fs=str2double(get(handles.Hf_fs,'String'));

% --- Executes during object creation, after setting all properties.
function Hp_popup_CreateFcn(hObject, eventdata, handles)
% hObject    handle to popupmenu2 (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
set(hObject,'string',{'Butterworth','Chebyshev_type1','Chebyshev_type2','Eliptic'});

% --- Executes on selection change in popupmenu2.
function Hp_popup_Callback(hObject, eventdata, handles)
% hObject    handle to popupmenu2 (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 popupmenu2 contents as cell array
%        contents{get(hObject,'Value')} returns selected item from popupmenu2


% --- Executes on button press in Hl_low.
function Hl_low_Callback(hObject, eventdata, handles)
% hObject    handle to Hl_low (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 Hl_low
set(handles.Hl_low, 'Value', 1);
set(handles.Hh_high, 'Value', 0);
set(handles.Hb_bandpass, 'Value', 0);
set(handles.Hb_bandstop, 'Value', 0);
set(handles.Hr_rstop1, 'Visible', 'off');
set(handles.Hr_rpass, 'Visible', 'off');
set(handles.Hr_rstop2, 'Visible', 'off');
set(handles.text23, 'Visible', 'off');
set(handles.text24, 'Visible', 'off');
set(handles.text25, 'Visible', 'off');
set(handles.text5, 'String', 'wp');
set(handles.text6, 'String', 'ws');
set(handles.text3, 'String', 'rp');
set(handles.text4, 'String', 'rs');

% --- Executes on button press in Hh_high.
function Hh_high_Callback(hObject, eventdata, handles)
% hObject    handle to Hh_high (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 Hh_high
set(handles.Hl_low, 'Value', 0);
set(handles.Hh_high, 'Value', 1);
set(handles.Hb_bandpass, 'Value', 0);
set(handles.Hb_bandstop, 'Value', 0);
set(handles.Hr_rstop1, 'Visible', 'off');
set(handles.Hr_rpass, 'Visible', 'off');
set(handles.Hr_rstop2, 'Visible', 'off');
set(handles.text23, 'Visible', 'off');
set(handles.text24, 'Visible', 'off');
set(handles.text25, 'Visible', 'off');
set(handles.text5, 'String', 'wp');
set(handles.text6, 'String', 'ws');
set(handles.text3, 'String', 'rp');
set(handles.text4, 'String', 'rs');
% --- Executes on button press in Hb_bandpass.
function Hb_bandpass_Callback(hObject, eventdata, handles)
% hObject    handle to Hb_bandpass (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 Hb_bandpass

set(handles.Hl_low, 'Value', 0);
set(handles.Hh_high, 'Value', 0);
set(handles.Hb_bandpass, 'Value', 1);
set(handles.Hb_bandstop, 'Value', 0);
set(handles.text5, 'String', 'Fpass1');
set(handles.text6, 'String', 'Fpass2');
set(handles.text3, 'String', 'Fstop1');
set(handles.text4, 'String', 'Fstop2');
set(handles.Hr_rstop1, 'Visible', 'on');
set(handles.Hr_rpass, 'Visible', 'on');
set(handles.Hr_rstop2, 'Visible', 'on');
set(handles.text23, 'Visible', 'on');
set(handles.text24, 'Visible', 'on');
set(handles.text25, 'Visible', 'on');
set(handles.text23, 'String', 'Rstop1');
set(handles.text24, 'String', 'Rpass');
set(handles.text25, 'String', 'Rstop2');

% --- Executes on button press in Hb_bandstop.
function Hb_bandstop_Callback(hObject, eventdata, handles)
% hObject    handle to Hb_bandstop (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 Hb_bandstop
set(handles.Hl_low, 'Value', 0);
set(handles.Hh_high, 'Value', 0);
set(handles.Hb_bandpass, 'Value', 0);
set(handles.Hb_bandstop, 'Value', 1);
set(handles.text5, 'String', 'Fpass1');
set(handles.text6, 'String', 'Fpass2');
set(handles.text3, 'String', 'Fstop1');
set(handles.text4, 'String', 'Fstop2');
set(handles.text23, 'String', 'Rpass1');
set(handles.text24, 'String', 'Rstop');
set(handles.text25, 'String', 'Rpass2');
set(handles.Hr_rstop1, 'Visible', 'on');
set(handles.Hr_rpass, 'Visible', 'on');
set(handles.Hr_rstop2, 'Visible', 'on');
set(handles.text23, 'Visible', 'on');
set(handles.text24, 'Visible', 'on');
set(handles.text25, 'Visible', 'on');



% --- Executes during object creation, after setting all properties.
function Hf_fs1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Hf_fs1 (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 Hf_fs1_Callback(hObject, eventdata, handles)
% hObject    handle to Hf_fs1 (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 Hf_fs1 as text
%        str2double(get(hObject,'String')) returns contents of Hf_fs1 as a double


% --- Executes during object creation, after setting all properties.
function Hp_pass1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Hp_pass1 (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 Hp_pass1_Callback(hObject, eventdata, handles)
% hObject    handle to Hp_pass1 (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 Hp_pass1 as text
%        str2double(get(hObject,'String')) returns contents of Hp_pass1 as a double


% --- Executes during object creation, after setting all properties.
function Hf_fpass2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Hf_fpass2 (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 Hf_fpass2_Callback(hObject, eventdata, handles)
% hObject    handle to Hf_fpass2 (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 Hf_fpass2 as text
%        str2double(get(hObject,'String')) returns contents of Hf_fpass2 as a double


% --- Executes during object creation, after setting all properties.
function Hf_stop_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Hf_stop (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 Hf_stop_Callback(hObject, eventdata, handles)
% hObject    handle to Hf_stop (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 Hf_stop as text
%        str2double(get(hObject,'String')) returns contents of Hf_stop as a double


% --- Executes during object creation, after setting all properties.
function Hf_rp1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Hf_rp1 (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 Hf_rp1_Callback(hObject, eventdata, handles)
% hObject    handle to Hf_rp1 (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 Hf_rp1 as text
%        str2double(get(hObject,'String')) returns contents of Hf_rp1 as a double


% --- Executes during object creation, after setting all properties.
function Hr_rp2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Hr_rp2 (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