Method for separation of data into narrowband and broadband time series components

摘要

A method for separation of acoustical data into narrowband and broadband time series components includes the steps of: constructing a data matrix in which time series samples of acoustical data are arranged in a forward-backward linear predictor matrix; decomposing a subband of the matrix into an in-band component and an out-of-band component; estimating narrowband components; estimating out-of-band leakage; removing the in-band narrowband component and the out-of-band narrowband component; repeating sequentially the afore mentioned five steps until narrowband components from all of the subbands of the matrix are removed from the acoustical data; and reconstructing the broadband time series; whereby to provide a narrowband time series estimate indicative of the presence of a signal in the acoustical data.