Patent ID: 8737452

Claim:
A method for identifying a signal-of-interest (SOI), comprising: receiving the SOI at a reference sensor station; providing a first reference signal based on a first component of the SOI received at the reference sensor station, and a second reference signal based on a second component of the SOI received at the reference sensor station; receiving a signal comprising the SOI along with an interfering signal at a cooperative sensor station; correlating the first reference signal and the second reference signal with the signal received at the cooperative sensor station; providing a first correlation map representing the correlation of the first reference signal with the signal received at the cooperative sensor station, and providing a second correlation map representing the correlation of the second reference signal with the signal received at the cooperative sensor station; based on the first correlation map, identifying first and second peaks; based on the second correlation map, identifying third and fourth peaks; determining a first value corresponding to a ratio of the first and third peaks and determining a second value corresponding to a ratio of the second and fourth peaks; comparing the first and second values to a third value based on a ratio of predetermined gain factors βc/βd; and identifying the SOI based on the value most closely matching the third value.