ASN9 - Decimating filter
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Problem Statement
Add to #8 writeup how to do a decimating filter and figure out how many multiply & adds are needed for a n/2 decimating low pass filter.
Response
A decimation throws out data when sampling. Decimation is used when digitally recording real time data. A recording frequency is used to sample as often as necessary to obtain a good representation of the original signal. All points are not needed since we are not able to processes all the changes in the signal. If the frequency of the sample is still fast we would not distinquish the difference in the recording though it is reduced.