How to reconstruct signal in matlab using interpolating formula?

Hi! So i am kinda confused how to construct a signal and also i dont know how to plot this into matlab coding. I hope everyone can help me. Thank you!

[Dimitris Kalogiros]

What do you want exactly to do ?

Be aware that, in matlab there is no way to represent a continous time signal .

What you can, do is to have a discrete time signal and produce a second discrete time signal , where , ( i.e. a higher sampling rate has been used to produce ).

[Mbekwa Lemuel Nguh]

I also have the same problem because I need to reconstruct a signal but don't know where to begin ?

For example I need to reconstruction of signals in dsp using interpolation method .

I want to reconstruct lagrange polynomila interpolation. hjow canI do that.

Answer 1

[Munna Khandakar]

xa = x * sinc(Fs*(ones(length(n),1)*t-nTs'*ones(1,length(t))));

this is the code to convert the above equation.