SYSTEMS AND METHODS FOR DISTANCE INDEPENDENT ACOUSTICAL DIFFERENTIAL SIGNATURE DETECTION

A differential signature detection system is provided. The system comprises: a target sensor, wherein the target sensor is configured to measure acoustical signals within a first narrow band around a target frequency; an offset sensor, wherein the offset sensor is configured to measure acoustical si...

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Bibliographische Detailangaben
1. Verfasser:	TIN, Steven
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DEAF-AID SETS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEASURING PHYSICS PUBLIC ADDRESS SYSTEMS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	A differential signature detection system is provided. The system comprises: a target sensor, wherein the target sensor is configured to measure acoustical signals within a first narrow band around a target frequency; an offset sensor, wherein the offset sensor is configured to measure acoustical signals within a second narrow band around an offset frequency; and a controller coupled to the target sensor and the offset sensor, wherein the controller is configured to: compare a signal output of the target sensor with an output of the signal output of the offset sensor to calculate a differential measurement that comprises a difference in signal peak intensity; compare the differential measurement to a reference signal, wherein the reference signal comprises a threshold indicative of a presence of a characteristic signature peak associated with a target object; and produce an output based on the comparison between the differential measurement and the reference signal.