The bispectrum of complex signals: definitions and properties
Ismail I. Jouny, Randolph L. Moses · IEEE Transactions on Signal Processing · 1992
The symmetry properties and the relationship between all forms of third-order cumulants of complex signals are investigated. It is shown that all cumulants (for different position of the complex conjugate) are related by simple transformations. Autoregressive modeling of complex-valued signals using third-order cumulants is also investigated. It is shown that modeling of complex-valued signals requires a different approach from modeling of real-valued signals.>