System and method for acoustic signature extraction, detection, discrimination, and localization
First Claim
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1. An apparatus for extracting, detecting, classifying, discriminating, localizing, and processing acoustic signals comprising:
- a) at least one transducer device operable to collect a plurality of signals;
b) instructions for decomposing the signals into matched structure books wherein decomposing comprises performing simultaneous sparse approximations of the signals;
each said structure book representation defining a multi-dimensional combination of coefficients and atoms; and
c) a computer memory for storing said structure-book.
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Abstract
A system and method whereby acoustic signals can be classified and identified as to nature and location of the original signal. The system and method determine from an arbitrary set of signals a signature or other characterizing feature and distinguish signals associated with a plurality of conditions by means of dictionaries comprising atoms of signals.
23 Citations
19 Claims
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1. An apparatus for extracting, detecting, classifying, discriminating, localizing, and processing acoustic signals comprising:
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a) at least one transducer device operable to collect a plurality of signals; b) instructions for decomposing the signals into matched structure books wherein decomposing comprises performing simultaneous sparse approximations of the signals;
each said structure book representation defining a multi-dimensional combination of coefficients and atoms; andc) a computer memory for storing said structure-book. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of signature extraction comprising the steps of:
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a. establishing two or more analysis sets, each set comprising at least one signal; b. decomposing the sets of signals into matched structure books wherein decomposing comprises performing simultaneous sparse approximations of the signals;
each said structure book representation defining a multi-dimensional combination of coefficients and atoms; andc. actuating the processing device to produce a parametric mean structure book representative of a signature for each group of signals. - View Dependent Claims (8, 9)
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10. A method of signal detection and classification comprising the steps of:
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a. collecting a set of signals; b. decomposing the sets of signals into matched structure books wherein decomposing comprises performing simultaneous sparse approximations of the signals;
each said structure book defining a multi-dimensional combination of coefficients and atoms; andc. comparing the resulting structure books to structure books of known signatures. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification