Patent ID: 6990419

Claim:
A system for identifying a signal source in a predetermined space, comprising: a plurality of sensing units arranged at different locations of the predetermined space to detect signals in the predetermined space; at least one recording unit connected to the sensing units and arranged to separately and simultaneously record a detected signal at each of the sensing units that detects the signal; and a processing unit configured to receive signal recordings from the at least one recording unit; the processing unit comprising: a first storage area configured to store a set of identified signatures corresponding to a plurality of signal sources in the predetermined space; a second storage area configured to store parameters related to the conditions under which the recordings of the signal are made; and an identifying unit, wherein: the identifying unit is configured to: determine a spectrum of the recorded signal; detect a line emerging from background noise of the spectrum by using a predetermined emergence threshold; compare the line with some or all of the signatures included in the set of identified signatures; select at least one signature corresponding to the line to create at least one signature/line pair; and identify a source of the signal based on the created at least one signature/line pair.