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Teager-Kaiser energy operator

Source: R/dsp_detection.R
morie_dsp_teager_energy.Rd

psi[n] = x[n]^2 - x[n-1] * x[n+1]; sensitive to instantaneous amplitude AND frequency.

Usage

morie_dsp_teager_energy(x)

Arguments

x

Numeric vector.

Value

Numeric vector, length(x); ends are zero.

References

Rangayyan & Krishnan (2015), Ch. 4, sec. 4.5; Kaiser (1990).