Patent ID: 9749069
Date: 2017-08-29
CPC Classifications: H04B,H04W

Claim:
1. A method for using a spectrum analysis and management device, comprising: providing a device including a housing, at least one radio frequency (RF) receiver coupled with at least one processor, and at least one memory; receiving RF energy measurements from the RF receiver, the RF energy measurements including at least two arrival frequencies and at least two arrival phases corresponding to at least two instances of at least one signal of interest; identifying the location of the device; determining whether or not there are at least four known emitters present in the identified location by comparing the identified location with location data corresponding to known emitters, wherein the location data corresponding to known emitters is stored in the at least one memory; upon determining there are at least four known emitters present in the identified location, measuring a received signal strength (RSS) of the at least four known emitters and the at least one signal of interest, or upon determining there are not at least four known emitters present in the identified location, measuring an angle of arrival for the at least one signal of interest and at least one other known emitter; measuring frequency shift data and obtaining a cross ambiguity function based on the RSS or the angle of arrival; determining whether or not the cross ambiguity function converges to a solution; upon determining that the cross ambiguity function converges to a solution, aggregating the frequency shift data, or upon determining that the cross ambiguity function does not converge to a solution, measuring time differences of arrival of the at least one signal of interest and aggregating the time differences of arrival; based on the aggregated frequency shift data or the aggregated time differences of arrival, determining an estimated position of at least one emitter of the at least one signal of interest, wherein the estimated position is within 3 meters of an actual position of the at least one emitter of the at least one signal of interest.