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Upsampling a non equally spaced signal [duplicate]

Upsampling a non equally spaced signal [duplicate]
  1. Is resampling the same as upsampling?
  2. What is the purpose of upsampling?
  3. Why do we Upsample a signal?

Is resampling the same as upsampling?

Resampling involves changing the frequency of your time series observations. Two types of resampling are: Upsampling: Where you increase the frequency of the samples, such as from minutes to seconds. Downsampling: Where you decrease the frequency of the samples, such as from days to months.

What is the purpose of upsampling?

The purpose of Upsampling is to manipulate a signal in order to artificially increase the sampling rate.

Why do we Upsample a signal?

The purpose of upsampling is to add samples to a signal, whilst maintaining its length with respect to time. Consider again a time signal of 10 seconds length with a sample rate of 1024Hz or samples per second that will have 10 x 1024 or 10240 samples.

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