noun
autocorrelation
Technical term in statistics and signal processing: the correlation of a signal with a delayed copy of itself.
自己相関関数を使って信号の周期性を調べる。
We examine the periodicity of the signal using the autocorrelation function.
Cross-correlation measures similarity between two different signals, while autocorrelation compares a signal with itself.
Compound of 自己 (self) and 相関 (correlation), a calque of English 'autocorrelation'.