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A digital filter is a system that performs mathematical operations on a sampled, discrete-time signal
2
votes
How to improve my digital filter to extract DC from noises?
You have defined your DC as varying at 0.000001Hz. Are you aware that this is 1000000s, or 1.9 years? If that's truly your intention, with a sampling rate of 64000Hz, you need to average 64,000,000,00 …