Function won't show up on plot

Question

Armin Kaufmann 2019-9-30

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/482782-function-won-t-show-up-on-plot

回答： Jyotsna Talluri 2019-10-3

Hi, so I'm supposed to create a rectangular signal (with 1 period) that looks as the screenshot posted:

where I have 4 input parameters: "T" as the period input in seconds, "Ti" as the duty cycle input in seconds too, H as the "High" - Level of the signal and L as the "Low" - Level of the signal.

So, I created a function to achieve that:

function [yg, t] = Task1Try2(T,Ti,H,L,N)

yges=L:H;

for t=1:T

if t<Ti

yges=ones*H

else

yges=ones*L

end

yg=yges;

plot(t,yg);

title("Muster");

xlabel("Zeit in S");

ylabel("Amplitude");

grid on

axis([0,T,0,5]);

end

By the way idk how to put matlab code in here as smooth in those "boxes", feel free 2 let me know.

I have a suspicion that the problem is that I do not assign each "t" value with a proper "y"/"yges" value, but how do I get that done? I don't want the Y values changed by the t value so....

Thanks in advance!

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Answer 1

Jyotsna Talluri 2019-10-3

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/482782-function-won-t-show-up-on-plot#answer_394593

在 MATLAB Online 中打开

For creating the rectangular pulse waveform, there is an inbuilt function phased.RectangularWaveform in Phased Array System Toolbox .You can try using that

waveform=phased.RectangularWaveform('PulseWidth',Ti,'PRF',1/T,'OutputFormat','Pulses','NumPulses',N);
y=waveform();
y=(b-a)*y;
du = N*1/waveform.PRF;
tsam = du*waveform.SampleRate;
t = unigrid(0,1/waveform.SampleRate,du,'[)');
plot(t.*1000,real(y)+a);