Patent Document ID: 9470775
Application ID: 14041371
Patent Status: 1

Claim One:
1. A method for localizing environmental signals of interest utilizing a computer comprising the steps of: initializing signal characteristics of signals of interest; acquiring signals from a sensor array having at least three acoustic sensors; digitizing said acquired signals; conditioning said digitized signals based on initialized signal characteristics; validating conditioned signals associated with each sensor by comparison with initialized signal characteristics; correlating the validated conditioned signal associated with one sensor with the validated conditioned signal associated with another sensor for each sensor pair in the sensor array to obtain time differences of arrival for each sensor pair, wherein the step of correlating the validated conditioned signal associated with one sensor with the validated conditioned signal associated with another sensor comprises the steps of: developing a first order click map for the validated conditioned signal associated with one sensor; developing a first order click map for the validated conditioned signal associated with another sensor; windowing the first order click map for each signal to obtain a windowed first order click map for one sensor and a windowed first order click map for another sensor; and correlating said first order click map from one sensor with a windowed first order click map from another sensor to obtain an initial time difference of arrival for the sensor pair; validating the time differences of arrival for each sensor pair; associating validated time differences of arrival from different times from the same sensor pairs; associating validated time differences of arrival from different sensor pairs when the time differences of arrival share a common sensor; creating a hyperbola of possible source locations for each validated time difference of arrival; summing hyperbolas created from associated validated time differences of arrival from different sensor pairs to obtain an intensity function; identifying location at a time as a position in the intensity function having the greatest intensity; tracking a source across time by utilizing the identified location and associated validated time differences of arrival from different times; and providing said identified location and track as computer output.