ASN10 - Frequency response of low pass filters: Difference between revisions
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== Response == |
== Response == |
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First image of frequency response cutoff frequency 1/4T with 100 filter coefficients. |
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[[File:M100f4.jpg]] |
[[File:M100f4.jpg]] |
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[[File:M10f32.jpg]] |
[[File:M10f32.jpg]] |
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Revision as of 11:00, 29 November 2010
Problem Statement
Use Octave (or Mathlab or Silab) to plot the frequency response of low pass filters with cut off frequencies of 1/32T, 1/8T, and 1/4T and compare how many coeffficients are needed with an eye to answer the question “Is it less calculation to decimate and then filter, or better to put the filter in the pre-decimation filter?”
Response
First image of frequency response cutoff frequency 1/4T with 100 filter coefficients. Second image of frequency response cutoff frequency 1/32T with 10 filter coefficients.
