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Honored Contributor
Honored Contributorzeroing of sampled signal : how ?
in my series of "stupid beginner questions" I hit a new problem. My ADC samples a signal. however, it is not guaranteed that 0 volts is reported as 128. it might be 115 or 130. correcting ...
Altera_ForumHonored Contributor
Honored Contributori usually don't care about DC so i use a simple recursive filter with a zero at DC and a pole just barely inside the unit circle
something like: H(z)=(z-1)/(z-0.999)
