On measuring the system coherency of quadratically nonlinear-systems
Results on modeling quadratic systems described by Volterra series up to order two are presented. Specifically, expressions for the linear and quadratic transfer functions and the system coherency are derived. It is shown that all the three quantities can be independently computed in the discrete frequency domain in terms of various spectral moments
Electrical and Computer Engineering | Engineering | Systems and Communications
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Kim, K. I.
On measuring the system coherency of quadratically nonlinear-systems.
IEEE Transactions on Signal Processing, 39(1),