# spatial frequency

> characteristic of any structure that is periodic across position in space; measure of how often sinusoidal components (as determined by the Fourier transform) of the structure repeat per unit of distance

**Wikidata**: [Q1650811](https://www.wikidata.org/wiki/Q1650811)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Spatial_frequency)  
**Source**: https://4ort.xyz/entity/spatial-frequency


## References

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