Subspace-based blind channel identification of SISO-FIR systems with improper random inputs
Signal Processing - Signal processing in communications
On suboptimum receivers for DS-CDMA with BPSK modulation
Signal Processing
Higher-order spectral analysis of complex signals
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Causal Wiener filter banks for periodically correlated time series
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MIMO transceiver design via majorization theory
Foundations and Trends in Communications and Information Theory
An augmented CRTRL for complex-valued recurrent neural networks
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Universal linear precoding for NBI-proof widely linear equalization in MC systems
EURASIP Journal on Wireless Communications and Networking - Multicarrier Systems
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On testing for impropriety of complex-valued Gaussian vectors
IEEE Transactions on Signal Processing
The quaternion LMS algorithm for adaptive filtering of hypercomplex processes
IEEE Transactions on Signal Processing
Discrete-time estimation of second-order statistics of generalized almost-cyclostationary processes
IEEE Transactions on Signal Processing
Analysis and compensation of transmitter IQ imbalances in OFDMA and SC-FDMA systems
IEEE Transactions on Signal Processing
On Wiener filtering of certain locally stationary stochastic processes
Signal Processing
IEEE Transactions on Information Theory
Complex valued recurrent neural networks for noncircular complex signals
IJCNN'09 Proceedings of the 2009 international joint conference on Neural Networks
Widely linear estimation algorithms for second-order stationary signals
IEEE Transactions on Signal Processing
Bivariate instantaneous frequency and bandwidth
IEEE Transactions on Signal Processing
On widely linear Wiener and tradeoff filters for noise reduction
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Sampling theorems for Doppler-stretched wide-band signals
Signal Processing
A statistical analysis of morse wavelet coherence
IEEE Transactions on Signal Processing
A complex generalized Gaussian distribution: characterization, generation, and estimation
IEEE Transactions on Signal Processing
A statistical study of temporally smoothed wavelet coherence
IEEE Transactions on Signal Processing
Properness and widely linear processing of quaternion random vectors
IEEE Transactions on Information Theory
Complex Gaussian scale mixtures of complex wavelet coefficients
IEEE Transactions on Signal Processing
On entropy rate for the complex domain and its application to i.i.d. sampling
IEEE Transactions on Signal Processing
An adaptive approach for the identification of improper complex signals
Signal Processing
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We present a comprehensive treatment of the second-order theory of complex random vectors and wide-sense stationary (WSS) signals. The main focus is on the improper case, in which the complementary covariance does not vanish. Accounting for the information present in the complementary covariance requires the use of widely linear transformations. Based on these, we present the eigenanalysis of complex vectors and apply it to the problem of rank reduction through principal components. We also investigate joint properties of two complex vectors by introducing canonical correlations, which paves the way for a discussion of the Wiener filter and its rank-reduced version. We link the concepts of propriety and joint propriety to eigenanalysis and canonical correlation analysis, respectively. Our treatment is extended to WSS signals. In particular, we give a result on the asymptotic distribution of eigenvalues and examine the connection between WSS, proper, and analytic signals.