Patent Number: 6,249,762

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

Abstract: 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.

Inventors: Kirsteins; Ivars P. (Cranston, RI), Mehta; Sanjay K. (Bristol, RI), Fay; John W. (Groton, CT)

Assignee: The United States of America as represented by the Secretary of the Navy

International Classification: H04L 27/30 (20060101); H04L 27/26 (20060101); H04L 25/03 (20060101); G01L 011/02 (); G01L 021/02 ()

Expiration Date: 06/19/2018