Matlab Code for Square wave

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Danish Ali 2014-11-21

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评论： shreyas kulkarni 2019-6-7

Hi,

I have to generate a square wave like the one shown in the fig below. Can any one please indicate the appropriate code for that?

Thanks,

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Naga Sai 2017-5-21

sir help me how to use this code as userdefinedfunction in matlab

shreyas kulkarni 2019-6-7

function [z t] = square(n1,n2)

% n1=2 give similar value

% n2=4 give this value

z=[];

t=1:1:n2

x= [];

for i=1:5

for t1= 0.01:0.01:n1

a=1

z=[z a];

x=[x t1]

end

for t2=n1+0.01:0.01:n2

a=-1

z=[z a];

x=[x t2]

end

t=1:0.01:n2;

x=1:0.01:n2;

plot(z);

end

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采纳的回答

Image Analyst 2014-11-22

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How about repmat()? One of your toolboxes may also have a function.

It's basically the same, you just have finer x resolution so when plotted the slopes from low to high appear steeper. Either way, they're both square waves with instantaneous jumps, regardless of how they look while plotted.

Naga Sai 2017-5-23

thank your sir sir pl help how to generate a square wave without using any functions of matlab with basic functions only

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Ridwan Maassarani 2016-2-8

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编辑：Ridwan Maassarani 2016-2-8

在 MATLAB Online 中打开

    %   endCan it be done with this code ?
      t = n*T:1:((n+1)*T);
      %lengtht = length(t);
      % Define x(t) and plot
      if (mod(n,2) == 0)
        %number is even
        x = 1; 
      else
        %number is odd
        x = -1;
      end
      plot(x)
      set(gcf, 'Units', 'Normalized', 'Outerposition', [0, 0, 1, 1]);

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Naga Sai 2017-6-8

sir please clear error in above function sir

Image Analyst 2017-6-8

Please give the link to your source code so I can compare your MATLAB code to the original, which presumably is in pseudocode or another language.

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Daniel Robin 2019-3-13

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在 MATLAB Online 中打开

The following square wave function can be used just like sin(x) providing a phase argument and duty-cycle and getting a signal in the range -1 to 1 accordingly.

function y = square(x, D)
    r = mod(x/(2*pi), 1);    % generate a ramp over every cycle
    y = 1 - 2*(r > D);       % output result from -1 to 1
end