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An augmented complex least mean square (ACLMS) algorithm for complex domain adaptive filtering which utilises the full second order statistical information is derived for adap-tive prediction problems. This is achieved based on some recent advances in complex statistics and by using widely linear modelling in. This way, both circular and non–circular… (More)

- Soroush Javidi, Clive Cheong Took, Danilo P. Mandic
- IEEE Transactions on Neural Networks
- 2011

An extension of the fast independent component analysis algorithm is proposed for the blind separation of both \BBQ-proper and \BBQ-improper quaternion-valued signals. This is achieved by maximizing a negentropy-based cost function, and is derived rigorously using the recently developed \mbi\BBH\BBR calculus in order to implement Newton optimization in the… (More)

- Soroush Javidi, Danilo P. Mandic, Andrzej Cichocki
- IEEE Trans. on Circuits and Systems
- 2010

—A class of second-order complex domain blind source extraction algorithms is introduced to cater for signals with noncircular probability distributions, which is a typical case in real-world scenarios. This is achieved by employing the so-called augmented complex statistics and based on the temporal structures of the sources, thus permitting widely linear… (More)

- Soroush Javidi, Clive Cheong Took, Cyrus Jahanchahi, Nicolas Le Bihan, Danilo P. Mandic
- 2011 IEEE International Conference on Acoustics…
- 2011

Blind extraction of quaternion-valued latent sources is addressed based on their local temporal properties. The extraction criterion is based on the minimum mean square widely linear prediction error, thus allowing for the extraction of both proper and improper quaternion sources. The use of the widely linear adaptive predictor is justified by the… (More)

- Beth Jelfs, Soroush Javidi, Phebe Vayanos, Danilo P. Mandic
- Signal Processing Systems
- 2010

- Soroush Javidi, Danilo P. Mandic, Clive Cheong Took, Andrzej Cichocki
- Front. Neurosci.
- 2011

A new class of complex domain blind source extraction algorithms suitable for the extraction of both circular and non-circular complex signals is proposed. This is achieved through sequential extraction based on the degree of kurtosis and in the presence of non-circular measurement noise. The existence and uniqueness analysis of the solution is followed by… (More)

- Soroush Javidi, Beth Jelfs, Danilo P. Mandic
- 2009 IEEE/SP 15th Workshop on Statistical Signal…
- 2009

Real valued blind source extraction based on a linear predictor is extended to the complex domain using recent advances in complex domain statistics. It is shown that, in general, the mean square prediction error of the algorithm depends both on the covariance matrix and the pseudo-covariance matrix of the source signals. To fully utilise the available… (More)

- Yili Xia, Clive Cheong Took, Soroush Javidi, Danilo P. Mandic
- 2009 IEEE/SP 15th Workshop on Statistical Signal…
- 2009

A widely linear affine projection algorithm (WL-APA) utilising the full second order statistical information in the complex domain ℂ is proposed. It is based on recent developments in augmented complex statistics, ℂℝ calculus, and the widely linear modelling in ℂ, making it suitable for the processing of noncircular complex… (More)

- Danilo P. Mandic, Phebe Vayanos, Soroush Javidi, Beth Jelfs, Kazuyuki Aihara
- 2008 IEEE International Conference on Acoustics…
- 2008

A novel method for online tracking of the changes in the non- linearity within complex-valued signals is introduced. This is achieved by a collaborative adaptive signal processing approach by means of a hybrid filter. By tracking the dynamics of the adaptive mixing parameter within the employed hybrid filtering architecture, we show that it is possible to… (More)

An online blind extraction algorithm, suitable for the generality of complex-valued sources, both complex circular and noncircular, is introduced. This is achieved based on higher order statistics of latent sources, and using the deflation approach. The novelty of the proposed approach is that the cost function is designed so as to be robust to both… (More)