zhang4.m

控制系统仿真中的频率特性的MATLAB源码

function varargout = zhang4(varargin)
% ZHANG4 M-file for zhang4.fig
%      ZHANG4, by itself, creates a new ZHANG4 or raises the existing
%      singleton*.
%
%      H = ZHANG4 returns the handle to a new ZHANG4 or the handle to
%      the existing singleton*.
%
%      ZHANG4('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in ZHANG4.M with the given input arguments.
%
%      ZHANG4('Property','Value',...) creates a new ZHANG4 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before zhang4_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to zhang4_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 zhang4

% Last Modified by GUIDE v2.5 12-Jun-2005 18:56:43

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @zhang4_OpeningFcn, ...
                   'gui_OutputFcn',  @zhang4_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin & isstr(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


% --- Executes just before zhang4 is made visible.
function zhang4_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 zhang4 (see VARARGIN)

% Choose default command line output for zhang4
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes zhang4 wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = zhang4_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)
%设置当前窗口名
str='传递函数'
set(gcf,'name',str,'numbertitle','off')
% Get default command line output from handles structure
varargout{1} = handles.output;


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


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


% --- Executes on button press in radiobutton_bo.
function radiobutton_bo_Callback(hObject, eventdata, handles)
% hObject    handle to radiobutton_bo (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 radiobutton_bo
%选择单选按钮
set(handles.radiobutton_bo,'value',1)
set(handles.radiobutton_ny,'value',0)
set(handles.radiobutton_ni,'value',0)
set(handles.radiobutton_bc,'value',0)
%获得输入值
den=str2num(get(handles.edit_m,'string'))
    num=str2num(get(handles.edit_n,'string'))
    sys=tf(num,den)
    %绘制开环bode图并标注
    w=logspace(-1,2)
    [m1,p1]=bode(num,den,w)
    subplot('position',[0.44,0.65,0.48,0.2])
    semilogx(w,20*log10(m1))
title('开环bode图')
    ylabel('幅值') 
    grid on
    subplot('position',[0.44,0.38,0.48,0.2])
    semilogx(w,p1)
    xlabel('频率')
    ylabel('相角')
    grid on
    %计算稳定裕量
  [Gm,Pm,Wcg,Wcp]=margin(sys)
    set(handles.edit3,'string',Gm)
  set(handles.edit4,'string',Pm)
  set(handles.edit5,'string',Wcg)
  set(handles.edit6,'string',Wcp)
    set(handles.text9,'visible','on')
    set(handles.text10,'visible','on')
    set(handles.text11,'visible','on')
    set(handles.text12,'visible','on')
    set(handles.edit3,'visible','on')
    set(handles.edit4,'visible','on')
    set(handles.edit5,'visible','on')
    set(handles.edit6,'visible','on')
 set(handles.pushbutton1,'visible','on')
 set(handles.pushbutton3,'visible','off')
% --- Executes on button press in radiobutton_bc.
function radiobutton_bc_Callback(hObject, eventdata, handles)
% hObject    handle to radiobutton_bc (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 radiobutton_bc
%选择单选按钮
set(handles.radiobutton_bc,'value',1)
set(handles.radiobutton_ny,'value',0)
set(handles.radiobutton_ni,'value',0)
set(handles.radiobutton_bo,'value',0)
%获得输入值
deno=str2num(get(handles.edit_m,'string'));
    numo=str2num(get(handles.edit_n,'string'));
    %由开环传递函数得到闭环传递函数
    numcl=numo;
    n=poly2sym(numo);
    d=poly2sym(deno);
    
    dencl=sym2poly(n+d);
    %绘制闭环bode图并标注
    w=logspace(-1,2);
    [m2,p2]=bode(numcl,dencl,w);
    subplot('position',[0.44,0.65,0.48,0.2]);
    semilogx(w,20*log10(m2));
title('闭环bode图');
    ylabel('幅值') ;
    grid on;
    subplot('position',[0.44,0.38,0.48,0.2]);
    semilogx(w,p2);
    xlabel('频率');
    ylabel('相角');
  
    grid on;
    %计算稳定裕量
sys=tf(numcl,dencl)
[Gm,Pm,Wcg,Wcp]=margin(sys)
    set(handles.edit3,'string',Gm)
  set(handles.edit4,'string',Pm)
  set(handles.edit5,'string',Wcg)
  set(handles.edit6,'string',Wcp)
    set(handles.text9,'visible','on')
    set(handles.text10,'visible','on')
    set(handles.text11,'visible','on')
    set(handles.text12,'visible','on')
    set(handles.edit3,'visible','on')
    set(handles.edit4,'visible','on')
    set(handles.edit5,'visible','on')
    set(handles.edit6,'visible','on')
    set(handles.pushbutton1,'visible','on')
    set(handles.pushbutton3,'visible','off')
% --- Executes on button press in radiobutton_ny.
function radiobutton_ny_Callback(hObject, eventdata, handles)
% hObject    handle to radiobutton_ny (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 radiobutton_ny
%选择单选按钮
set(handles.radiobutton_ny,'value',1)
set(handles.radiobutton_bc,'value',0)
set(handles.radiobutton_bo,'value',0)
set(handles.radiobutton_ni,'value',0)
%获得输入值
 den=str2num(get(handles.edit_m,'string'))
    num=str2num(get(handles.edit_n,'string'))
    sys=tf(num,den)
    %绘制nyquist曲线并标注
    subplot('position',[0.42,0.38,0.5,0.47])
   
   nyquist(sys)
   grid on
 
 
       title('nyquist曲线')
    xlabel('实轴')
    ylabel('虚轴')
    set(handles.text9,'visible','off')
    set(handles.text10,'visible','off')
    set(handles.text11,'visible','off')
    set(handles.text12,'visible','off')
    set(handles.edit3,'visible','off')
    set(handles.edit4,'visible','off')
    set(handles.edit5,'visible','off')
    set(handles.edit6,'visible','off')
    set(handles.pushbutton3,'visible','on')
    set(handles.pushbutton1,'visible','off')
% --- Executes on button press in radiobutton_ni.
function radiobutton_ni_Callback(hObject, eventdata, handles)
% hObject    handle to radiobutton_ni (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 radiobutton_ni
%选择单选按钮
set(handles.radiobutton_ni,'value',1)
set(handles.radiobutton_bc,'value',0)
set(handles.radiobutton_ny,'value',0)
set(handles.radiobutton_bo,'value',0)
%获得输入值
 den=str2num(get(handles.edit_m,'string'))
    num=str2num(get(handles.edit_n,'string'))
    sys=tf(num,den)
    %绘制nichols曲线并标注  
    subplot('position',[0.42,0.2,0.5,0.65])
  
 nichols(sys)
   grid on
   ngrid
    title('nichols曲线')
   xlabel('开环相角 ')
   ylabel('开环增益')
   set(handles.text9,'visible','off')
    set(handles.text10,'visible','off')
    set(handles.text11,'visible','off')
    set(handles.text12,'visible','off')
    set(handles.edit3,'visible','off')
    set(handles.edit4,'visible','off')
    set(handles.edit5,'visible','off')
    set(handles.edit6,'visible','off')
    set(handles.pushbutton1,'visible','off')
    set(handles.pushbutton3,'visible','off')
% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% 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)
zyx9

% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% 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)

close


% --- Executes during object creation, after setting all properties.
function edit3_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit3 (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 edit3_Callback(hObject, eventdata, handles)
% hObject    handle to edit3 (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 edit3 as text
%        str2double(get(hObject,'String')) returns contents of edit3 as a double


% --- Executes during object creation, after setting all properties.
function edit4_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit4 (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 edit4_Callback(hObject, eventdata, handles)
% hObject    handle to edit4 (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 edit4 as text
%        str2double(get(hObject,'String')) returns contents of edit4 as a double


% --- Executes during object creation, after setting all properties.
function edit5_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit5 (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 edit5_Callback(hObject, eventdata, handles)
% hObject    handle to edit5 (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 edit5 as text
%        str2double(get(hObject,'String')) returns contents of edit5 as a double


% --- Executes during object creation, after setting all properties.
function edit6_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit6 (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 edit6_Callback(hObject, eventdata, handles)
% hObject    handle to edit6 (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 edit6 as text
%        str2double(get(hObject,'String')) returns contents of edit6 as a double


% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% 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)

analysis2