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Estimation of nonlinear distortion using digital higher-order spectra and Volterra series
By: Cho, Y.S.; Powers, E.J.;
1992 / IEEE / 0-7803-0593-0
Description
This item was taken from the IEEE Periodical ' Estimation of nonlinear distortion using digital higher-order spectra and Volterra series ' The concept of linear and nonlinear coherence functions is utilized to evaluate the second- and third-order distortion of a time-invariant nonlinear system, which can be represented by a Volterra series up to the third order, without assuming a Gaussian input. The proposed approach considers the most significant nonlinear distortion products (second-order harmonic, third-order harmonic, second-order intermodulation, and some forms of third-order intermodulation distortion), which are typical in audio components such as loudspeakers, to obtain relatively accurate estimates with reasonable data requirements and computational complexity. This method has been applied to a loudspeaker at low frequencies to model and qualify the linear response, second-order distortion, and third-order distortion.<
Related Topics
Electric Distortion
Harmonics
Intermodulation
Series (mathematics)
Loudspeaker
Nonlinear Distortion
Digital Higher-order Spectra
Volterra Series
Coherence Functions
Time-invariant Nonlinear System
Third-order Harmonic
Second-order Intermodulation
Third-order Intermodulation
Audio Components
Computational Complexity
Nonlinear Distortion
Intermodulation Distortion
Harmonic Distortion
Frequency Estimation
Loudspeakers
Acoustic Distortion
Kernel
Distortion Measurement
Statistics
Nonlinear Systems
Audio Signals
Spectral Analysis
Engineering
Second-order Harmonic