Methods and apparatus for signal processing of multi-channel data

摘要

Methods and apparatuses for processing multi-channel data are provided. A group of input signals are sampled. An average spectrum of the sampled group of input signals sampled over a predetermined number of time intervals is determined. An autocorrelation function based on the average spectrum and an average covariance based on results of the autocorrelation function over the predetermined number of time intervals may also be determined. A value based on a multinormal distribution of the sampled group of signal inputs sampled over the predetermined number of time intervals is determined.