An introduction to signal detection and estimation (2nd ed.)
An introduction to signal detection and estimation (2nd ed.)
Complex Valued Nonlinear Adaptive Filters: Noncircularity, Widely Linear and Neural Models
Complex Valued Nonlinear Adaptive Filters: Noncircularity, Widely Linear and Neural Models
Widely linear estimation algorithms for second-order stationary signals
IEEE Transactions on Signal Processing
ARMA Prediction of Widely Linear Systems by Using the Innovations Algorithm
IEEE Transactions on Signal Processing - Part II
Second-order statistics of complex signals
IEEE Transactions on Signal Processing
Widely linear estimation with complex data
IEEE Transactions on Signal Processing
Smoothing for doubly stochastic Poisson processes
IEEE Transactions on Information Theory
Widely linear prediction for transfer function models based on the infinite past
Computational Statistics & Data Analysis
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The fixed-point smoothing estimation problem is analyzed for a class of improper complex-valued signals, called widely factorizable, characterized because the correlation of the augmented vector formed by the signal and its conjugate is a factorizable kernel. For this type of signal, widely linear processing is the most suitable approach considering the complete information of the augmented correlation function. Then, from only the knowledge of the second order properties of the augmented vectors involved, linear and nonlinear smoothing algorithms are provided without the necessity of postulating a state-space model. Moreover, in the linear case, recursive formulas for computing the fixed-point smoothing estimation error are proposed.