Patent ID: 9143176
Filing Date: 2015-09-22
Classification: G01S,H04B,H04W

Abstract:
1. A method of determining a location of a wireless emitter comprising: receiving by an antenna array and multi-channel receiver, a signal from the wireless emitter; extracting a fingerprint from the signal; matching the fingerprint with a fingerprint in a fingerprints database, to identify a matching fingerprint having a best match; and selecting as an estimated location of the emitter, a location corresponding to the matching fingerprint, wherein the fingerprint database stores fingerprints and corresponding locations, wherein the fingerprints are extracted from wireless signals received by said antenna array, from emitters at known K locations in a geographical coverage region, wherein the fingerprint extracted from the received signal is a single coherent entity implicitly including directions-of-arrival and differential-delays information of multipath components of the signal, and wherein the fingerprint is extracted from a spatio-temporal covariance matrix of the received signal,