0-th order spectral moment

1 D energy spectral density function

2-D Spectral Estimation

3-D spectral plot

6—dimensional spectral greenness value

absolute spectral response

Absolute spectral responsivity

acceleration power spectral density

acceleration spectral density

Adams spectral sequence

Adams spectral sequences

Adams-Novikov spectral sequence

Adaptive Spectral Enhancement

adaptive spectral line enhancement

Admittance Spectral Analysis

agronomic spectral model

Analysis of spectral information

Analytical Spectral Lines of Elements

anomalous spectral reflectance

AR spectral analysis