# Butterworth filter

> type of signal processing filter designed to have a frequency response as flat as possible in the passband

**Wikidata**: [Q1018162](https://www.wikidata.org/wiki/Q1018162)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Butterworth_filter)  
**Source**: https://4ort.xyz/entity/butterworth-filter


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)