Constant Q

Views Updated: Dec 15, 2025

Abbreviation

Pronunciation

/ˈkɑnstənt kju/

An analysis of passive sonar signal and extraction of their features is described. By researching the principle of hearing system in identification of sound signal, a new steady constant Q feature is proposed. Two more reasonable evaluation methods of distance and identification index are given.
The paper deduced movement and wave equation of seismic wave field in constant Q viscoelastic media using the method of Pseudo-spectral, and carried on forward modeling, the modeling result is the same with the one of other modeling ways.
Constant Q(CQ) transform ( CQT ) has advantages in pitch analysis of music signals, due to its exponentially spaced center frequencies.
The oxidation kinetics constant k p of parabolic oxidation law, the crack density exponent m, and the spallation constant q were calculated.
The inputs of the Pi-Sigma net classifier are the feature vectors which are extracted by a constant Q bandpass filter bank.

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