Systems and methods for security breach detection

A method of detecting and identifying a security breach, comprising:

• detecting seismic vibration from a source, and generating an output signal that represents the detected seismic vibration;
• extracting a feature vector from the output signal;
• computing one or more likelihoods for the extracted feature vector relative to set {bi} (i=1, . . . , imax) of breach classes bi;
• and
• classifying the source of the seismic vibration as a security breach belonging to one of the breach classes bi by choosing a breach class within the set {bi} that has a maximum likelihood.

A computer-readable storage medium having stored therein computer-readable instructions for a processing system, wherein said instructions when executed by said processor cause said processing system to:

• extracting a feature vector from an output signal of a seismic sensor;
• compute one or more likelihoods for the extracted feature vector relative to a set {bi} (i=1, . . . , imax) of breach classes bi;
• and
• choose a breach class within the set {bi} that has a maximum likelihood.

A wireless transmitter, wherein the wireless transmitter is configured to:

• receive from one or more geophones vibration data representative of seismic vibration detected by the geophones, and transmit the vibration data to a command center;
• receive from a detecting system security breach data representative of a security breach that has been detected by the detecting system by extracting a feature vector from the vibration data detected by the geophones, and computing one or more likelihoods of the extracted feature vector relative to set {bi} (I=1, . . . , imax) of breach classes bi, and choosing a breach class within the set {bi} that has a maximum likelihood relative to the extracted feature vector;
• and
• transmit the security breach data to the command center.