Talk:Filter design
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Wouldn't it be nice to have a frequency domain filter page (or "Filter (frequency domain)") to gather all the low-pass, high-pass, ... stuff on one page, rather than on electronic filter, digital filter, ...?
[edit] There's no suitable "filter" article on Wikipedia
"Filter" itself is of course a large disambiguation page with many many many links. Where the word "filter" appears in the first sentence, one would like to say [[this other article|filter]], but there's really no suitable value of "this other article". Electronic filter? No—that's only a special case. The filters used in, for example, statistical analysis of time series and some other areas of applied math are mathematical abstractions implemented in computer programs or sometimes only in abstract discussions in scholarly papers—they're not electronic filters, but clearly they SHOULD be included in the topic of "this other article" to which one would link. Michael Hardy 20:07, 19 August 2006 (UTC)
- You have pointed out a relevant issue, and I agree that there should be an article on filters which describes and exemplifies different ways of thinking about filters in the sense that they are used here. About the title, I suggest "Filter (signal processing)" which could be based a lot on LTI system theory but also give a example of non-linear filters (Volterra stuff) and shift-variant filters. The term signal processing does not have to be interpreted in the narrow sense of electronics and digital devices. A signal is the same as a function but with the additional assumption that it carries some specific information. --KYN 07:55, 21 August 2006 (UTC)
