Howtosignalprocessing
What is downsample rate?
Downsampling is the process of reducing the sample rate by an integer factor. A signal can be downsampled by a factor of Q by retaining every Q th sample and discarding the remaining samples. The new slower sample rate is 1/Q of the original faster sample rate.
Which performs better downsampling upsampling or leaving the data Raw?
It depends on the level of certainty you need. If you don't need mathematical certainty and just want a heuristic, downsampling is faster and upsampling is more accurate. If you need to put bounds on the accuracy of your computation: it is possible but I can't help you with that.
