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【MATLAB习题】工程测试时域、频域分析

时间:2023-02-01 22:47:14浏览次数:64  
标签:app UIFigure ui matlab Position 习题 时域 Create MATLAB

UxsrNd.png

Uxsnnw.png

UxspGF.png

代码:

classdef App_uoye < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure                 matlab.ui.Figure
        LabelNumericEditField    matlab.ui.control.Label
        f1                       matlab.ui.control.NumericEditField
        LabelNumericEditField2   matlab.ui.control.Label
        f2                       matlab.ui.control.NumericEditField
        LabelNumericEditField3   matlab.ui.control.Label
        f3                       matlab.ui.control.NumericEditField
        Label3                   matlab.ui.control.Label
        Label5                   matlab.ui.control.Label
        Label6                   matlab.ui.control.Label
        LabelNumericEditField4   matlab.ui.control.Label
        A1                       matlab.ui.control.NumericEditField
        LabelNumericEditField5   matlab.ui.control.Label
        A2                       matlab.ui.control.NumericEditField
        LabelNumericEditField6   matlab.ui.control.Label
        A3                       matlab.ui.control.NumericEditField
        LabelNumericEditField8   matlab.ui.control.Label
        theta2                   matlab.ui.control.NumericEditField
        LabelNumericEditField9   matlab.ui.control.Label
        theta3                   matlab.ui.control.NumericEditField
        LabelNumericEditField10  matlab.ui.control.Label
        theta1                   matlab.ui.control.NumericEditField
        Label7                   matlab.ui.control.Label
        Label8                   matlab.ui.control.Label
        Label9                   matlab.ui.control.Label
        Button                   matlab.ui.control.Button
        Label                    matlab.ui.control.Label
        Label2                   matlab.ui.control.Label
        LabelNumericEditField11  matlab.ui.control.Label
        fengzhi                  matlab.ui.control.NumericEditField
        LabelNumericEditField12  matlab.ui.control.Label
        fengfengzhi              matlab.ui.control.NumericEditField
        LabelNumericEditField13  matlab.ui.control.Label
        junzhi                   matlab.ui.control.NumericEditField
        LabelNumericEditField14  matlab.ui.control.Label
        youxiaozhi               matlab.ui.control.NumericEditField
        LabelNumericEditField15  matlab.ui.control.Label
        pinlv                    matlab.ui.control.NumericEditField
        LabelNumericEditField16  matlab.ui.control.Label
        zhouqi                   matlab.ui.control.NumericEditField
        Button2                  matlab.ui.control.Button
        Button3                  matlab.ui.control.Button
        Button4                  matlab.ui.control.Button
        Button5                  matlab.ui.control.Button
        Button6                  matlab.ui.control.Button
        ax1                      matlab.ui.control.UIAxes
        ax2                      matlab.ui.control.UIAxes
        ax3                      matlab.ui.control.UIAxes
        ax5                      matlab.ui.control.UIAxes
        ax4                      matlab.ui.control.UIAxes
        ax6                      matlab.ui.control.UIAxes
        ax7                      matlab.ui.control.UIAxes
        ax8                      matlab.ui.control.UIAxes
        ax9                      matlab.ui.control.UIAxes
        ax10                     matlab.ui.control.UIAxes
    end

    
    properties (Access = private)
        % Description
        p double
        q double
        n double% Description
        y double % Description
        N double % Description
        Fs double % Description
        t % Description
        T % Description
    end
    

    % Callbacks that handle component events
    methods (Access = private)

        % Code that executes after component creation
        function startupFcn(app)
            %频率分量
            app.f1.Value=100;
            app.f2.Value=200;
            app.f3.Value=300;
            %幅值分量
            app.A1.Value=1;
            app.A2.Value=2;
            app.A3.Value=3;
            %matlab 默认弧度制
            %相位分量
            app.theta1.Value=0;
            app.theta2.Value=pi/6;
            app.theta3.Value=pi/3;
        end

        % Button pushed function: Button
        function ButtonButtonPushed(app, event)
            % 获得一组数字信号
            
            app.Fs=5120;     %采样频率
            dt=1.0/app.Fs;    %采样时间间隔
            app.N=1024;     %样点个数
            app.T=dt*app.N;     %采样时段
            app.t=linspace(0,app.T,app.N);  %时域图形的横坐标
            %得到正弦信号 y
            app.y=app.A1.Value*sin(2*pi*app.f1.Value*app.t+app.theta1.Value)+app.A2.Value*sin(2*pi*app.f2.Value*app.t+app.theta2.Value)+...
                app.A3.Value*sin(2*pi*app.f3.Value*app.t+app.theta3.Value);   %正弦信号
            
            %信号分析
            app.fengzhi.Value=max(app.y);
            app.fengfengzhi.Value=max(app.y)-min(app.y);
            app.junzhi.Value=mean(app.y);
            app.youxiaozhi.Value=rms(app.y);
            %频率分析
            app.p=max(app.y);
            app.q=min(app.y);
            app.n=1;
            at=0.8*(app.p-app.q)+app.q;%原理:过零检测
            i=1;
            for k=2:1:app.N-2
                if(app.y(k-1)<at&&app.y(k)<=at&&app.y(k+1)>at&&app.y(k+2)>at)
                    ti(i)=k;
                    i=i+1;
                end
            end
            app.zhouqi.Value=(ti(2)-ti(1))*dt;
            app.pinlv.Value=1/app.zhouqi.Value;
            %输出时域信号 ()
            plot(app.ax1,app.t,app.y);
            drawnow;
            pause(0.05);
            
        end

        % Button pushed function: Button2
        function Button2ButtonPushed(app, event)
            N1=1024;
            Nfft=N1;
            n1=0:N1-1;
            t1=n1/app.Fs;%采用的时间序列
            xn=app.A1.Value*sin(2*pi*app.f1.Value*t1+app.theta1.Value)+app.A2.Value*cos(2*pi*app.f2.Value*t1+app.theta2.Value)...
                +app.A3.Value*sin(2*pi*app.f3.Value*t1+app.theta3.Value);
            
            P=10*log10(abs(fft(xn,Nfft).^2)/N1);%Fourier 振幅谱平方的平均值,并转化为 dB
            f=(0:length(P)-1)*app.Fs/length(P);%给出频率序列
            plot(app.ax3,f(1:N1/2),P(1:N1/2));
            
            Pxx=abs(fft(xn,Nfft).^2)/N1;%Fourier 振幅谱平方的平均值,并转化为 dB
            f=(0:length(Pxx)-1)*app.Fs/length(Pxx);%给出频率序列
            plot(app.ax7,f(1:N1/2),Pxx(1:N1/2));%绘制功率谱曲线
            % std(Pxx)^2;
            drawnow
            pause(2)
        end

        % Button pushed function: Button3
        function Button3ButtonPushed(app, event)
            %生成高斯白噪声
            x11=wgn(1,app.N,10);
            x1=1:app.N;
            plot(app.ax4,x1,x11);
            
            s=xcorr(x11,app.y);
            x4=linspace(0,2*app.T,2*app.N-1);%互相关分析
            plot(app.ax5,x4,s);
            drawnow ;
                pause(1);
        end

        % Button pushed function: Button4
        function Button4ButtonPushed(app, event)
            P=fft(app.y,app.N);                 %快速傅里叶变换
            Pyy =2*sqrt(P.* conj(P))/app.N;   %模值除以 N/2
            Pyy(1)= Pyy(1)/2;           %第一个点模值除以 N
            f=linspace(0,app.Fs/2,app.N/2);       %频域图形的横坐标
            plot(app.ax2,f,Pyy(1:app.N/2));          %绘制频域波形
            drawnow
            pause(2)
            
        end

        % Button pushed function: Button5
        function Button5ButtonPushed(app, event)
            
            n8=0:app.N-1;
            ffty=fft(app.y,app.N);    %对信号进行快速 Fourier 变换
            mag=abs(ffty);    %求取 Fourier 变换的振幅
            f89=n8*app.Fs/app.N;
            plot(app.ax6,f89,mag); %绘出随频率变化的振幅
            
            ph=2*angle(ffty(1:app.N/2));
            ph=ph*180/pi;
            plot(app.ax8,f89(1:app.N/2),ph(1:app.N/2));
            drawnow;
            pause(2);
        end

        % Button pushed function: Button6
        function Button6ButtonPushed(app, event)
            N6=length(app.y);
            if mod(N6,2)==0
                k=-N6/2:N6/2-1;
            else
                k=-(N6-1)/2:(N6-1)/2;
            end
            T1=N6/app.Fs;
            Range=k/T1;
            Doain=fft(app.y)/app.N;
            Doain=fftshift(Doain);
            CnR=real(Doain);
            CnI=imag(Doain);
            plot(app.ax9,Range,CnR)
            plot(app.ax10,Range,CnI)
            drawnow;
            pause(1)
        end
    end

    % Component initialization
    methods (Access = private)

        % Create UIFigure and components
        function createComponents(app)

            % Create UIFigure and hide until all components are created
            app.UIFigure = uifigure('Visible', 'off');
            app.UIFigure.Position = [101 101 1407 714];
            app.UIFigure.Name = 'UI Figure';

            % Create LabelNumericEditField
            app.LabelNumericEditField = uilabel(app.UIFigure);
            app.LabelNumericEditField.HorizontalAlignment = 'right';
            app.LabelNumericEditField.VerticalAlignment = 'top';
            app.LabelNumericEditField.Position = [1226 404 20 15];
            app.LabelNumericEditField.Text = 'f1';

            % Create f1
            app.f1 = uieditfield(app.UIFigure, 'numeric');
            app.f1.Position = [1261 400 100 22];

            % Create LabelNumericEditField2
            app.LabelNumericEditField2 = uilabel(app.UIFigure);
            app.LabelNumericEditField2.HorizontalAlignment = 'right';
            app.LabelNumericEditField2.VerticalAlignment = 'top';
            app.LabelNumericEditField2.Position = [1226 368 20 15];
            app.LabelNumericEditField2.Text = 'f2';

            % Create f2
            app.f2 = uieditfield(app.UIFigure, 'numeric');
            app.f2.Position = [1261 364 100 22];

            % Create LabelNumericEditField3
            app.LabelNumericEditField3 = uilabel(app.UIFigure);
            app.LabelNumericEditField3.HorizontalAlignment = 'right';
            app.LabelNumericEditField3.VerticalAlignment = 'top';
            app.LabelNumericEditField3.Position = [1226 337 20 15];
            app.LabelNumericEditField3.Text = 'f3';

            % Create f3
            app.f3 = uieditfield(app.UIFigure, 'numeric');
            app.f3.Position = [1261 333 100 22];

            % Create Label3
            app.Label3 = uilabel(app.UIFigure);
            app.Label3.VerticalAlignment = 'top';
            app.Label3.Position = [1372 368 20 15];
            app.Label3.Text = 'Hz';

            % Create Label5
            app.Label5 = uilabel(app.UIFigure);
            app.Label5.VerticalAlignment = 'top';
            app.Label5.Position = [1372 403 20 15];
            app.Label5.Text = 'Hz';

            % Create Label6
            app.Label6 = uilabel(app.UIFigure);
            app.Label6.VerticalAlignment = 'top';
            app.Label6.Position = [1372 337 20 15];
            app.Label6.Text = 'Hz';

            % Create LabelNumericEditField4
            app.LabelNumericEditField4 = uilabel(app.UIFigure);
            app.LabelNumericEditField4.HorizontalAlignment = 'right';
            app.LabelNumericEditField4.VerticalAlignment = 'top';
            app.LabelNumericEditField4.Position = [1226 303 20 15];
            app.LabelNumericEditField4.Text = 'A1';

            % Create A1
            app.A1 = uieditfield(app.UIFigure, 'numeric');
            app.A1.Position = [1261 299 100 22];

            % Create LabelNumericEditField5
            app.LabelNumericEditField5 = uilabel(app.UIFigure);
            app.LabelNumericEditField5.HorizontalAlignment = 'right';
            app.LabelNumericEditField5.VerticalAlignment = 'top';
            app.LabelNumericEditField5.Position = [1226 270 20 15];
            app.LabelNumericEditField5.Text = 'A2';

            % Create A2
            app.A2 = uieditfield(app.UIFigure, 'numeric');
            app.A2.Position = [1261 266 100 22];

            % Create LabelNumericEditField6
            app.LabelNumericEditField6 = uilabel(app.UIFigure);
            app.LabelNumericEditField6.HorizontalAlignment = 'right';
            app.LabelNumericEditField6.VerticalAlignment = 'top';
            app.LabelNumericEditField6.Position = [1226 237 20 15];
            app.LabelNumericEditField6.Text = 'A3';

            % Create A3
            app.A3 = uieditfield(app.UIFigure, 'numeric');
            app.A3.Position = [1261 233 100 22];

            % Create LabelNumericEditField8
            app.LabelNumericEditField8 = uilabel(app.UIFigure);
            app.LabelNumericEditField8.HorizontalAlignment = 'right';
            app.LabelNumericEditField8.VerticalAlignment = 'top';
            app.LabelNumericEditField8.Position = [1208 170 38 15];
            app.LabelNumericEditField8.Text = 'Theta2';

            % Create theta2
            app.theta2 = uieditfield(app.UIFigure, 'numeric');
            app.theta2.Position = [1261 166 100 22];

            % Create LabelNumericEditField9
            app.LabelNumericEditField9 = uilabel(app.UIFigure);
            app.LabelNumericEditField9.HorizontalAlignment = 'right';
            app.LabelNumericEditField9.VerticalAlignment = 'top';
            app.LabelNumericEditField9.Position = [1208 139 38 15];
            app.LabelNumericEditField9.Text = 'Theta3';

            % Create theta3
            app.theta3 = uieditfield(app.UIFigure, 'numeric');
            app.theta3.Position = [1261 135 100 22];

            % Create LabelNumericEditField10
            app.LabelNumericEditField10 = uilabel(app.UIFigure);
            app.LabelNumericEditField10.HorizontalAlignment = 'right';
            app.LabelNumericEditField10.VerticalAlignment = 'top';
            app.LabelNumericEditField10.Position = [1208 206 38 15];
            app.LabelNumericEditField10.Text = 'Theta1';

            % Create theta1
            app.theta1 = uieditfield(app.UIFigure, 'numeric');
            app.theta1.Position = [1261 202 100 22];

            % Create Label7
            app.Label7 = uilabel(app.UIFigure);
            app.Label7.VerticalAlignment = 'top';
            app.Label7.Position = [1372 205 20 15];
            app.Label7.Text = 'rad';

            % Create Label8
            app.Label8 = uilabel(app.UIFigure);
            app.Label8.VerticalAlignment = 'top';
            app.Label8.Position = [1372 170 20 15];
            app.Label8.Text = 'rad';

            % Create Label9
            app.Label9 = uilabel(app.UIFigure);
            app.Label9.VerticalAlignment = 'top';
            app.Label9.Position = [1372 139 20 15];
            app.Label9.Text = 'rad';

            % Create Button
            app.Button = uibutton(app.UIFigure, 'push');
            app.Button.ButtonPushedFcn = createCallbackFcn(app, @ButtonButtonPushed, true);
            app.Button.HorizontalAlignment = 'left';
            app.Button.Position = [1071 101 100 22];
            app.Button.Text = '1. 进行时域分析';

            % Create Label
            app.Label = uilabel(app.UIFigure);
            app.Label.VerticalAlignment = 'top';
            app.Label.FontSize = 14;
            app.Label.Position = [1096 346 84 18];
            app.Label.Text = '时域分析结果';

            % Create Label2
            app.Label2 = uilabel(app.UIFigure);
            app.Label2.HorizontalAlignment = 'center';
            app.Label2.VerticalAlignment = 'top';
            app.Label2.FontSize = 14;
            app.Label2.Position = [1289 431 56 18];
            app.Label2.Text = '参数输入';

            % Create LabelNumericEditField11
            app.LabelNumericEditField11 = uilabel(app.UIFigure);
            app.LabelNumericEditField11.HorizontalAlignment = 'right';
            app.LabelNumericEditField11.VerticalAlignment = 'top';
            app.LabelNumericEditField11.Position = [1053 321 24 15];
            app.LabelNumericEditField11.Text = '峰值';

            % Create fengzhi
            app.fengzhi = uieditfield(app.UIFigure, 'numeric');
            app.fengzhi.Position = [1092 317 100 22];

            % Create LabelNumericEditField12
            app.LabelNumericEditField12 = uilabel(app.UIFigure);
            app.LabelNumericEditField12.HorizontalAlignment = 'right';
            app.LabelNumericEditField12.VerticalAlignment = 'top';
            app.LabelNumericEditField12.Position = [1041 254 36 15];
            app.LabelNumericEditField12.Text = '峰峰值';

            % Create fengfengzhi
            app.fengfengzhi = uieditfield(app.UIFigure, 'numeric');
            app.fengfengzhi.Position = [1092 250 100 22];

            % Create LabelNumericEditField13
            app.LabelNumericEditField13 = uilabel(app.UIFigure);
            app.LabelNumericEditField13.HorizontalAlignment = 'right';
            app.LabelNumericEditField13.VerticalAlignment = 'top';
            app.LabelNumericEditField13.Position = [1053 187 24 15];
            app.LabelNumericEditField13.Text = '均值';

            % Create junzhi
            app.junzhi = uieditfield(app.UIFigure, 'numeric');
            app.junzhi.Position = [1092 183 100 22];

            % Create LabelNumericEditField14
            app.LabelNumericEditField14 = uilabel(app.UIFigure);
            app.LabelNumericEditField14.HorizontalAlignment = 'right';
            app.LabelNumericEditField14.VerticalAlignment = 'top';
            app.LabelNumericEditField14.Position = [1041 288 36 15];
            app.LabelNumericEditField14.Text = '有效值';

            % Create youxiaozhi
            app.youxiaozhi = uieditfield(app.UIFigure, 'numeric');
            app.youxiaozhi.Position = [1092 284 100 22];

            % Create LabelNumericEditField15
            app.LabelNumericEditField15 = uilabel(app.UIFigure);
            app.LabelNumericEditField15.HorizontalAlignment = 'right';
            app.LabelNumericEditField15.VerticalAlignment = 'top';
            app.LabelNumericEditField15.Position = [1053 222 24 15];
            app.LabelNumericEditField15.Text = '频率';

            % Create pinlv
            app.pinlv = uieditfield(app.UIFigure, 'numeric');
            app.pinlv.Position = [1092 218 100 22];

            % Create LabelNumericEditField16
            app.LabelNumericEditField16 = uilabel(app.UIFigure);
            app.LabelNumericEditField16.HorizontalAlignment = 'right';
            app.LabelNumericEditField16.VerticalAlignment = 'top';
            app.LabelNumericEditField16.Position = [1053 151 24 15];
            app.LabelNumericEditField16.Text = '周期';

            % Create zhouqi
            app.zhouqi = uieditfield(app.UIFigure, 'numeric');
            app.zhouqi.Position = [1092 147 100 22];

            % Create Button2
            app.Button2 = uibutton(app.UIFigure, 'push');
            app.Button2.ButtonPushedFcn = createCallbackFcn(app, @Button2ButtonPushed, true);
            app.Button2.HorizontalAlignment = 'left';
            app.Button2.Position = [1189 64 100 22];
            app.Button2.Text = '4. 功率谱分析';

            % Create Button3
            app.Button3 = uibutton(app.UIFigure, 'push');
            app.Button3.ButtonPushedFcn = createCallbackFcn(app, @Button3ButtonPushed, true);
            app.Button3.HorizontalAlignment = 'left';
            app.Button3.Position = [1189 27 100 22];
            app.Button3.Text = '6. 互相关分析';

            % Create Button4
            app.Button4 = uibutton(app.UIFigure, 'push');
            app.Button4.ButtonPushedFcn = createCallbackFcn(app, @Button4ButtonPushed, true);
            app.Button4.HorizontalAlignment = 'left';
            app.Button4.Position = [1072 64 100 22];
            app.Button4.Text = '2. 频域波形图';

            % Create Button5
            app.Button5 = uibutton(app.UIFigure, 'push');
            app.Button5.ButtonPushedFcn = createCallbackFcn(app, @Button5ButtonPushed, true);
            app.Button5.HorizontalAlignment = 'left';
            app.Button5.Position = [1186 101 107 22];
            app.Button5.Text = '3. 振幅-相位谱分析';

            % Create Button6
            app.Button6 = uibutton(app.UIFigure, 'push');
            app.Button6.ButtonPushedFcn = createCallbackFcn(app, @Button6ButtonPushed, true);
            app.Button6.Position = [1072 27 100 22];
            app.Button6.Text = '5. 实频虚频分析';

            % Create ax1
            app.ax1 = uiaxes(app.UIFigure);
            title(app.ax1, '时域波形分析')
            xlabel(app.ax1, 't')
            ylabel(app.ax1, 'Signal')
            app.ax1.XGrid = 'on';
            app.ax1.YGrid = 'on';
            app.ax1.GridAlpha = 0.15;
            app.ax1.MinorGridAlpha = 0.25;
            app.ax1.Box = 'on';
            app.ax1.Position = [1 45 344 210];

            % Create ax2
            app.ax2 = uiaxes(app.UIFigure);
            title(app.ax2, '频域波形图')
            xlabel(app.ax2, 'w')
            ylabel(app.ax2, 'A')
            app.ax2.XGrid = 'on';
            app.ax2.YGrid = 'on';
            app.ax2.GridAlpha = 0.15;
            app.ax2.MinorGridAlpha = 0.25;
            app.ax2.Box = 'on';
            app.ax2.Position = [687 266 344 210];

            % Create ax3
            app.ax3 = uiaxes(app.UIFigure);
            title(app.ax3, '功率谱(dB)')
            xlabel(app.ax3, '频率/Hz')
            ylabel(app.ax3, '功率谱/dB')
            app.ax3.XGrid = 'on';
            app.ax3.YGrid = 'on';
            app.ax3.GridAlpha = 0.15;
            app.ax3.MinorGridAlpha = 0.25;
            app.ax3.Box = 'on';
            app.ax3.Position = [344 48 344 210];

            % Create ax5
            app.ax5 = uiaxes(app.UIFigure);
            title(app.ax5, '互相关分析')
            xlabel(app.ax5, 'X')
            ylabel(app.ax5, 'Y')
            app.ax5.XGrid = 'on';
            app.ax5.YGrid = 'on';
            app.ax5.GridAlpha = 0.15;
            app.ax5.MinorGridAlpha = 0.25;
            app.ax5.Box = 'on';
            app.ax5.Position = [344 267 344 210];

            % Create ax4
            app.ax4 = uiaxes(app.UIFigure);
            title(app.ax4, '高斯白噪声')
            xlabel(app.ax4, 'X')
            ylabel(app.ax4, 'Y')
            app.ax4.XGrid = 'on';
            app.ax4.YGrid = 'on';
            app.ax4.GridAlpha = 0.15;
            app.ax4.MinorGridAlpha = 0.25;
            app.ax4.Box = 'on';
            app.ax4.Position = [676 493 344 210];

            % Create ax6
            app.ax6 = uiaxes(app.UIFigure);
            title(app.ax6, '幅值谱')
            xlabel(app.ax6, '频率/Hz')
            ylabel(app.ax6, '幅值')
            app.ax6.XGrid = 'on';
            app.ax6.YGrid = 'on';
            app.ax6.GridAlpha = 0.15;
            app.ax6.MinorGridAlpha = 0.25;
            app.ax6.Box = 'on';
            app.ax6.Position = [1 490 344 210];

            % Create ax7
            app.ax7 = uiaxes(app.UIFigure);
            title(app.ax7, '功率谱周期图 N=1024')
            xlabel(app.ax7, '频率/Hz')
            ylabel(app.ax7, '功率谱')
            app.ax7.XGrid = 'on';
            app.ax7.YGrid = 'on';
            app.ax7.GridAlpha = 0.15;
            app.ax7.MinorGridAlpha = 0.25;
            app.ax7.Box = 'on';
            app.ax7.Position = [687 45 344 210];

            % Create ax8
            app.ax8 = uiaxes(app.UIFigure);
            title(app.ax8, '相位谱')
            xlabel(app.ax8, '频率/Hz')
            ylabel(app.ax8, '相角')
            app.ax8.XGrid = 'on';
            app.ax8.YGrid = 'on';
            app.ax8.GridAlpha = 0.15;
            app.ax8.MinorGridAlpha = 0.25;
            app.ax8.Box = 'on';
            app.ax8.Position = [1053 490 344 210];

            % Create ax9
            app.ax9 = uiaxes(app.UIFigure);
            title(app.ax9, '实频谱')
            xlabel(app.ax9, '频率/Hz')
            ylabel(app.ax9, 'CnR')
            app.ax9.XGrid = 'on';
            app.ax9.YGrid = 'on';
            app.ax9.GridAlpha = 0.15;
            app.ax9.MinorGridAlpha = 0.25;
            app.ax9.Box = 'on';
            app.ax9.Position = [344 493 344 210];

            % Create ax10
            app.ax10 = uiaxes(app.UIFigure);
            title(app.ax10, '虚频谱')
            xlabel(app.ax10, '频率/Hz')
            ylabel(app.ax10, 'CnI')
            app.ax10.XGrid = 'on';
            app.ax10.YGrid = 'on';
            app.ax10.GridAlpha = 0.15;
            app.ax10.MinorGridAlpha = 0.25;
            app.ax10.Box = 'on';
            app.ax10.Position = [1 266 344 210];

            % Show the figure after all components are created
            app.UIFigure.Visible = 'on';
        end
    end

    % App creation and deletion
    methods (Access = public)

        % Construct app
        function app = App_uoye

            % Create UIFigure and components
            createComponents(app)

            % Register the app with App Designer
            registerApp(app, app.UIFigure)

            % Execute the startup function
            runStartupFcn(app, @startupFcn)

            if nargout == 0
                clear app
            end
        end

        % Code that executes before app deletion
        function delete(app)

            % Delete UIFigure when app is deleted
            delete(app.UIFigure)
        end
    end
end

标签:app,UIFigure,ui,matlab,Position,习题,时域,Create,MATLAB
From: https://www.cnblogs.com/aksoam/p/17084340.html

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