Cannot run 16-PSK code in Switch case inside of another switch case

Here's the 16-PSK modulation code I tried:

kanal = get(handles.popupmenu1,'Value');
switch kanal
    case 1
        bitt=randi([0 1],12,1);
        all_bit=sprintf('%d', bitt);
        n_bit=length(all_bit);
        sampling_bit=50;
        bit=[];
        for i=1:length(all_bit)
            if all_bit(i)~=dec2bin(0) && all_bit(i)~=dec2bin(1)
                set_ok=0;
                break
            else
                set_ok=1;
            end
        end
        for n=1:1:length(all_bit);
            if all_bit(n)==dec2bin(0)
                bit=[bit 1*zeros(1,sampling_bit)];
            elseif all_bit(n)==dec2bin(1)
                bit=[bit 1*ones(1,sampling_bit)];
            end
        end
        
        
        plot(bit,'LineWidth',1.5);
        xlabel('ms');
        ylabel('amplitude');
        grid on;
        axis([0 n_bit*sampling_bit -2  2]);
        xticks([0:sampling_bit:n_bit*sampling_bit]);
        yticks([-2:1:2]);
        ax=gca;
        ax.XTickLabelRotation = -90;
        
        freq=100;              
        amp=1;
        cycle=2*pi;
        ts = 0.0001:0.0002:0.01;
        n_psk=16;                            
        n_bit=length(all_bit);              
        nb_psk=log2(n_psk);                
        n_simbol=n_bit/nb_psk;              
        l_ts=length(ts);
        ph=[];
        simbol=[];
        tempSymbol= [];
        modulatedSignal=[];   
        stddev=1;                  
        
        urutan_konstelasi_sudut=[0 1 3 2 7 6 4 5 15 14 12 13 8 9 11 10];
        for i=1:n_psk/2
            for j=i:i
                urutan_konstelasi_sudut=[urutan_konstelasi_sudut j];
            end
            for k=n_psk-i+1:n_psk-i+1
                urutan_konstelasi_sudut=[urutan_konstelasi_sudut mod(k,n_psk)];
            end
        end
        for i=1:n_psk
            ph=[ph  urutan_konstelasi_sudut(i)/n_psk*cycle];
            simbol=[simbol [amp*sin(cycle*freq*ts+ph(i))]];
        end
        for i = 1:nb_psk:n_bit-nb_psk+1    
            tempSymbol = [all_bit(i:i+nb_psk-1)];
            for j=0:n_psk-1
                if tempSymbol == dec2bin(j,nb_psk)%[000]
                    modulatedSignal = [modulatedSignal simbol(j*l_ts+1:(j+1)*l_ts)];
                end
            end
            tempSymbol = [];    %reset tempSymbol
        end
        axes(handles.axes2);
        hold off;
        plot(modulatedSignal,'LineWidth',1.5);grid on;
        hold on;
        legend('sinyal informasi')
        
end

the code above was executed successfully. but when i put the code in Switch case inside of another switch case like below:

kanal = get(handles.popupmenu1,'Value');
switch kanal
    case 1
        mod = get(handles.popupmenu2,'Value');
        switch mod
            case 1
                bitt=randi([0 1],12,1);
                all_bit=sprintf('%d', bitt);
                n_bit=length(all_bit);
                sampling_bit=50;
                bit=[];
                for i=1:length(all_bit)
                    if all_bit(i)~=dec2bin(0) && all_bit(i)~=dec2bin(1)
                        set_ok=0;
                        break
                    else
                        set_ok=1;
                    end
                end
                for n=1:1:length(all_bit);
                    if all_bit(n)==dec2bin(0)
                        bit=[bit 1*zeros(1,sampling_bit)];
                    elseif all_bit(n)==dec2bin(1)
                        bit=[bit 1*ones(1,sampling_bit)];
                    end
                end
                
                
                plot(bit,'LineWidth',1.5);
                xlabel('ms');
                ylabel('amplitude');
                grid on;
                axis([0 n_bit*sampling_bit -2  2]);
                xticks([0:sampling_bit:n_bit*sampling_bit]);
                yticks([-2:1:2]);
                ax=gca;
                ax.XTickLabelRotation = -90;
                
                freq=100;              
                amp=1;
                cycle=2*pi;
                ts = 0.0001:0.0002:0.01;
                n_psk=16;                            
                n_bit=length(all_bit);                   
                nb_psk=log2(n_psk);                 
                n_simbol=n_bit/nb_psk;              
                l_ts=length(ts);
                ph=[];
                simbol=[];
                tempSymbol= [];
                modulatedSignal=[];   
                stddev=1;                  
                
                urutan_konstelasi_sudut=[0 1 3 2 7 6 4 5 15 14 12 13 8 9 11 10];
                for i=1:n_psk/2
                    for j=i:i
                        urutan_konstelasi_sudut=[urutan_konstelasi_sudut j];
                    end
                    for k=n_psk-i+1:n_psk-i+1
                        urutan_konstelasi_sudut=[urutan_konstelasi_sudut mod(k,n_psk)];
                    end
                end
                for i=1:n_psk
                    ph=[ph  urutan_konstelasi_sudut(i)/n_psk*cycle];
                    simbol=[simbol [amp*sin(cycle*freq*ts+ph(i))]];
                end
                for i = 1:nb_psk:n_bit-nb_psk+1    
                    tempSymbol = [all_bit(i:i+nb_psk-1)];
                    for j=0:n_psk-1
                        if tempSymbol == dec2bin(j,nb_psk)%[000]
                            modulatedSignal = [modulatedSignal simbol(j*l_ts+1:(j+1)*l_ts)];
                        end
                    end
                    tempSymbol = [];    %reset tempSymbol
                end
                axes(handles.axes2);
                hold off;
                plot(modulatedSignal,'LineWidth',1.5);grid on;
                hold on;
                legend('sinyal informasi')
        end
        
end

there is an error as follows:

Index in position 1 exceeds array bounds (must not exceed 1).

Error in mod16psk>pushbutton1_Callback (line 186)

urutan_konstelasi_sudut=[urutan_konstelasi_sudut mod(k,n_psk)];

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in mod16psk (line 42)

gui_mainfcn(gui_State, varargin{:});

Error in

matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)mod16psk('pushbutton1_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

Did I miss something? Thanks before

Answer 1

[Setsuna Yuuki.]

Hi.

In the second code your use the variable:

mod = get(handles.popupmenu2,'Value');

but this name is a function name.

Change the variable name for other.

mod2 = get(handles.popupmenu2,'Value');
switch mod2
    case 1

[Ibnu Darajat]

thankyou so much

[Ibnu Darajat]

Hello @Setsuna Yuuki.

After I change the function name into "mod2", I got this error:

>> mod_fsk

Unrecognized function or variable 'mod'.

Error in mod_fsk>pushbutton2_Callback (line 261)

urutan_konstelasi_sudut=[urutan_konstelasi_sudut mod(k,n_psk)];

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in mod_fsk (line 42)

gui_mainfcn(gui_State, varargin{:});

Error in

matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)mod_fsk('pushbutton2_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

>>

Now variable "mod" unrecognized