How to reconstruct a signal from it's downsample values?

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ANANTA BIJOY BHADRA
回答： Pratyush 2023-7-7
I have a sinusoidal singal (e.g.- ). The frequency is 50 Hz. I downsampled the singal where there are 32 samples/cycle. But now need to get the original signal from the downsampled values. How can I do that?

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Pratyush
Pratyush 2023-7-7
Hi Ananta. It is my understanding that you have a downsampled sinusoidal signal and you would like to obtain the original signal. It can be achieved through upsampling. The video resource below describes upsampling of a sinusoidal signal in MATLAB and its plotting. Hope this helps.
Upsampling and Plotting a Signal in Matlab - YouTube

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