Convolute ramp signal and step signal

Question

RandomChikiBum 2021-12-27

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1618080-convolute-ramp-signal-and-step-signal

评论： Aditya Goel 2021-12-30

I am supposed to convolute a unit ramp signal and a step signal (till t =10 secs) and I am getting an error while running my code

x = 1:1:10 ;
p = 0.1:0.1:1 ;
u = ones(1 , 10);
r = p.*u;
y = conv(r,u);
plot(x,y);
Error using plot
Vectors must be the same length.
But all the arrays are of the same length i,e 10

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Answer 1

VBBV 2021-12-27

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1618080-convolute-ramp-signal-and-step-signal#answer_862675

在 MATLAB Online 中打开

x = 1:1:10 ;
p = linspace(0.1,1,length(x));
u = ones(1 , length(x));
r = p.*u;
y = conv(r,u,'same');
plot(x,y);

Try using additional arguments for conv function

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RandomChikiBum 2021-12-27

Thanks for the answer VBBV! can you explain what 'same' means here? Matlab help isn't elaborate enough

Aditya Goel 2021-12-30

w = conv(u,v,shape) returns a subsection of the convolution, as specified by shape. For example, conv(u,v,'same') returns only the central part of the convolution, the same size as u.

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