Decimation is used to reduce the size of the signal sequence by merging every N samples into one.
Envelope detection adds an envelope curve to the input signal. Origin's signal envelope tool computes an envelope and plots an upper envelope, a lower envelope, or both.
This tutorial will show you how to:
In this tutorial, we are going to perform decimation on sunspot count data. Measurements of sunspot number were collected every month for more than 200 years. We will use decimation to reduce our dataset to one sunspot count for each year.