Random Non-periodic waveform

Question

Muhammad Atif 2020-4-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/516053-random-non-periodic-waveform

评论： Star Strider 2020-4-10

How can I draw this waveform, it is a non periodic signal with the intervals like this {[1.54,2.49], [4.97,5.88], [6.69,7.98], [8.05,8.25],[8.58,9.09], [10.48,10.86], [11.16,12.97], [14.51,15.24],[15.38,15.60], [17.20,17.74], [19.16,22.38], [23.69,23.73],[24.59,25.47], [25.59,26.22], [26.65,29.27]}, these intervals are the starting and ending pionts of shaded area.

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Answer 1

Star Strider 2020-4-7

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/516053-random-non-periodic-waveform#answer_424569

编辑：Star Strider 2020-4-7

在 MATLAB Online 中打开

Try this:

C = {[1.54,2.49], [4.97,5.88], [6.69,7.98], [8.05,8.25],[8.58,9.09], [10.48,10.86], [11.16,12.97], [14.51,15.24],[15.38,15.60], [17.20,17.74], [19.16,22.38], [23.69,23.73],[24.59,25.47], [25.59,26.22], [26.65,29.27]};
figure
hold all
for k = 1:numel(C)
    patch([C{k} flip(C{k})], [0 0 1 1], [1 1 1]*0.8, 'EdgeColor','none')
end
hold off

It reproduces the image you posted, so I will not re-post it here.

EDIT — Added pulse train plot.

To draw it as a pulse train:

figure
hold all
for k = 1:numel(C)
    plot([[1 1]*C{k}(1) [1 1]*C{k}(2)], [0 1 1 0], 'k')
end
hold off
grid

.

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Muhammad Atif 2020-4-8

Brother I just need to create a random non-periodic waveform looks like the reference picture

Star Strider 2020-4-8

在 MATLAB Online 中打开

I am still not certain what you want.

Try this:

N = 25;                                                                     % Number Of Segments
g = rand(1,N);
b = rand(1,N);
C = mat2cell([cumsum(g+b); cumsum(g+b)-b]', ones(1,size(g,2)), 2); 
figure
hold all
for k = 1:numel(C)
    patch([C{k} flip(C{k})], [0 0 1 1], [1 1 1]*0.8, 'EdgeColor','none')
end
hold off
set(gca,'Layer','top', 'Box','on')                                          % Put Axes On Top Of ‘patch’ Objects
legend('DoS')
figure
hold all
for k = 1:numel(C)
    plot([[1 1]*C{k}(1) [1 1]*C{k}(2)], [0 1 1 0], 'k')
end
hold off
grid

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Answer 2

Muhammad Atif 2020-4-10

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/516053-random-non-periodic-waveform#answer_425170

Hi Sir,

Can I plot it by using ones and zeros function separately? I mean first define the duration for which it is one and then define the duration for which it is zero. After that add up them on the whole interval. Or any other method to do this, any loop(if-else) that can help to slove it more simply.

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Star Strider 2020-4-10

I do not understand what you want. The code I wrote is about as simple as I can create it, unless there is information about this that has so far not been posted. The loops are necessary because of the nature of the data. Each interval must be plotted individually in the patch call.

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