Prosig Signal Processing Blog

Notes, tutorials, news and articles on digital signal capture, processing, techniques and applications

June 6, 2001

DATA DECIMATION. WHAT DO I DO?

By Dr Colin Mercer, Technical Director, Prosig

Sometimes we have digitised data at a much higher rate than we need. How can we reduce the sampling rate? If I wanted to say halve the sample rate can I just throw away every other data point?

The answer is NO, except in pathological conditions where you know that there is no frequency content above the new Nyquist frequency. read »»»

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