Identification of multichannel MA parameters using higher-order statistics

Identification of multichannel MA parameters using higher-order statistics

Microphone Identification using Higher-Order Statistics

This paper presents a statistical framework for microphone identification using only digital audio recordings. To accomplish this task, the microphone-induced artifacts are modeled using a nonlinear function and then a statistical tool based on higher-order statistics is used to capture these artifacts. More specifically, polyspectral analysis is used to capture microphone-induced artifacts. Di...

Nonlinear system identification using higher order statistics

A general formula is given for the conditional mean in terms of higher order statistics. Using this formula, a general scheme for nonlinear system identi cation is introduced including a broad range of nonlinearities which depends on the probability density function of the input. As a special case of that general scheme, the polynomial system identi cation problem is treated. It is shown that o...

MA identification using fourth order cumulants

The algorithm proposed aims to identify moving average coefficient matrices of an MA process, not necessarily minimum-phase, driven by an unobserved non-gaussian input. It is assumed that the observation available is of limited duration, and coefficients are estimated from the set of fourth order output cumulants. It is shown that much more equations than unknowns are available, and that robust...

Multichannel Feature Extraction and Classification of Epileptic States Using Higher Order Statistics and Complexity Measures

Epilepsy is a brain dysfunction that is characterized by recurrent seizures. An important analysing tool in detection of epilepsy is Electroencephalogram (EEG). The random and non-linear nature of the EEG imposes great difficulty in understanding the pathological process. In this work a multichannel epilepsy detection system is proposed. A feature vector is formed by performing Higher Order Sta...