harmonic analysis

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harmonic analysis

[här′man·ik ə′nal·ə·səs]
(mathematics)
A study of functions by attempting to represent them as infinite series or integrals which involve functions from some particular well-understood family; it subsumes studying a function via its Fourier series.
(physics)
Any method of identifying and evaluating the harmonics that make up a complex waveform of sound pressure, voltage, current, or some other varying quantity.
References in periodicals archive ?
They provide comparison of the main interferometric systems and review the underlying Fourier theory. They then present chapters on digital image processing, fringe contouring and polynomial fitting, periodic signal phase detection and algorithm analysis, phase-shifting interferometry, spatial linear and circular carrier analysis, space-domain phase demodulation with a linear carrier, inteferogram analysis with Moire methods, interferogram analysis without a carrier, phase unwrapping, and wavefront curvature sensing.

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