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

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ANANTA BIJOY BHADRA 2023년 7월 6일

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https://kr.mathworks.com/matlabcentral/answers/1992803-how-to-reconstruct-a-signal-from-it-s-downsample-values

답변: Pratyush 2023년 7월 7일

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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Answer 1

Pratyush 2023년 7월 7일

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https://kr.mathworks.com/matlabcentral/answers/1992803-how-to-reconstruct-a-signal-from-it-s-downsample-values#answer_1268698

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