Solved: When a signal is produced from a sequence of
Chapter 4, Problem 21E(choose chapter or problem)
When a signal is produced from a sequence of measurements made on a process (a chemical reaction, a flow of heat through a tube, a moving robot arm, etc.), the signal usually contains random noise produced by measurement errors. A standard method of preprocessing the data to reduce the noise is to smooth or filter the data. One simple filter is a moving average that replaces each yk by its average with the two adjacent values: Use the filter to compute . Make a broken-line graph that superimposes the original signal and the smoothed signal.
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