Verfahren und Vorrichtung zur nichtstationären Quellentrennung

摘要

Method and device for non-stationary separation of signals of various sources or separation of at least one signal background, comprising a demixing phase with a switching matrix allocating, in a controlled manner, a number of signal inputs with mixing signal components to various outputs on evaluation elements by using an adaptive adding or multiplying algorithm. The adaptive algorithm can be variably controlled by using a variable learning rate, wherein the learning rate is continuously adapted by inclusion of an algorithm which comprises the following steps: i) detection of a differentiable function or at least two matrixes from the signal, the separated signal and the learning rate, which evaluates the separated signal; ii) adaptation of the switching matrix based on results of (i) and the learning rate, iii) adaptation of the learning rate based on results of (i) and (ii).