Patent ID: 9660693
Date: 2017-05-23
CPC Classifications: H04B

Claim:
1. A spatio-temporal signal monitoring system comprising: a sampler configured to: receive a radio frequency signal in a first frequency band, said radio frequency signal covering a first range of at least one other parameter of the radio frequency signal; and obtain first compressive sensing measurements of said received signal at a first resolution level, wherein the received signal has an angle of arrival at a third resolution; and a signal detector configured to: identify a first signal of interest based on said first compressive sensing measurements; determine a second frequency band corresponding to a said first signal of interest within the received radio signal, the second frequency band being narrower than the first frequency band, and a second range of the at least one other parameter corresponding to the said first signal of interest, said second range being narrower than said first range; the sampler being further configured to obtain second compressive sensing measurements of said received signal at a second resolution level, said second compressive sensing measurements corresponding to solely said second frequency band and said second range of said at least one other parameter, and said second resolution level being higher than said first resolution level; and determine an angle of arrival of said received signal at a fourth resolution, wherein the fourth resolution is more accurate than the third resolution.