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Butterworth filter

type of signal processing filter designed to have a frequency response as flat as possible in the passband
Thing general Q1018162
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Butterworth filter

Summary

Butterworth filter ranks in the top 2% of general entities by monthly Wikipedia readership (823 views/month).[1]

Key Facts

  • Butterworth filter is credited with the discovery of Stephen Butterworth[2].
  • Stephen Butterworth is named after Butterworth filter[3].
  • Butterworth filter's subclass of is recorded as electronic filter[4].
  • Butterworth filter's Freebase ID is recorded as /m/02q8jy[5].
  • Butterworth filter's Elhuyar ZTH ID is recorded as 135028[6].
  • Butterworth filter's Rosetta Code page ID is recorded as Apply_a_digital_filter_(direct_form_II_transposed)[7].
  • Butterworth filter's Microsoft Academic ID is recorded as 70757512[8].
  • Butterworth filter's OpenAlex ID is recorded as C70757512[9].

Body

Works and Contributions

Butterworth filter is credited with the discovery of Stephen Butterworth[2].

Why It Matters

Butterworth filter ranks in the top 2% of general entities by monthly Wikipedia readership (823 views/month).[1] It has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[10] It is known by 8 alternative names across languages and contexts.[11]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . Retrieved . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . Freebase Data Dumps. wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [10] ↑ . Wikidata sitelinks. wikidata.org.
  3. [11] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Butterworth filter. Retrieved April 11, 2026, from https://4ort.xyz/entity/butterworth-filter
MLA “Butterworth filter.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Apr. 2026, https://4ort.xyz/entity/butterworth-filter.
BibTeX @misc{4ortxyz_butterworth-filter_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Butterworth filter}}, year = {2026}, url = {https://4ort.xyz/entity/butterworth-filter}, note = {Accessed: 2026-04-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Butterworth filter — https://4ort.xyz/entity/butterworth-filter (retrieved 2026-04-11)

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