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I was trying tom implement a Butterworth filter and i came across a example on Mathworks site which emphasizes to customize various terms related to the filter.
Following are some of the terms i could not understand and i was also not able to find suitable info about them in matlab documentation-

1.CustomScaleValuesDataType
2.SectionInputDataType
3.CustomSectionInputDataType
4.SectionOutputDataType
5.CustomSectionOutputDataType

Can anyone please help me to understand this?

This was the link i was referring to-
https://in.mathworks.com/help/hdlfilter/examples/hdl-butterworth-filter.html

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  • $\begingroup$ That's for fixed-point implementations. Have a look at this page. $\endgroup$ – Matt L. Sep 2 '19 at 10:51
  • $\begingroup$ Hi @MattL. the page gives how to implement these specs.Sorry but i could not see the link you attached gives info on these parameters.These specs are already present on the link which i have attached in the question. $\endgroup$ – nebulla Sep 2 '19 at 10:55
  • $\begingroup$ Try again, the link should work. It explains these parameters. They are about the fixed-point number formats (Q15, Q31). $\endgroup$ – Matt L. Sep 2 '19 at 11:07
  • $\begingroup$ Hi @MattL. , sorry i am not able to get you,the link describes how these are used in Q15 and Q31 formats. I am asking what is the meaning of these parameters in filter design? $\endgroup$ – nebulla Sep 3 '19 at 7:13

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