Systems, methods, and devices for electronic spectrum management
AssigneeDGS Global Systems, Inc.
InventorsGabriel R. Garcia, Daniel Carbajal
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Abstract
Methods for tracking a signal origin by a spectrum analysis and management device are disclosed. Signal characteristics of other known emitters are used for obtaining a position of an emitter of a signal of interest. In one embodiment, frequency difference of arrival technique is implemented. In another embodiment, time difference of arrival technique is implemented.
Claims20
A method for tracking a signal origin using a spectrum analysis and management device, comprising:
- determining a Time Difference of Arrival or a Frequency Difference of Arrival for a signal of interest;
- identifying a location from which the signal of interest is transmitted;
- determining whether at least four known emitters are present at the location;
- obtaining a cross ambiguity function for the signal of interest;
- determining whether the cross ambiguity function converges to a solution;
- and
- resolving a position of an emitter from which the signal of interest is emitted.
A method for tracking a signal origin using a spectrum analysis and management device, comprising:
- determining a Time Difference of Arrival or a Frequency Difference of Arrival for a signal of interest;
- identifying a location from which the signal of interest is transmitted;
- determining whether at least four known emitters are present at the location;
- obtaining a cross ambiguity function for the signal of interest;
- determining the cross ambiguity function converges to a solution;
- aggregating frequency shift data;
- applying one or more filters to the aggregated frequency shift data;
- resolving a position of an emitter from which the signal of interest is emitted;
- and
- displaying the position of the emitter on a display of the spectrum analysis and management device.
A method for tracking a signal origin using a spectrum analysis and management device, comprising:
- determining a Time Difference of Arrival or a Frequency Difference of Arrival for a signal of interest;
- identifying a location from which the signal of interest is transmitted;
- determining whether at least four known emitters are present at the location;
- obtaining a cross ambiguity function for the signal of interest;
- determining the cross ambiguity function does not converge to a solution;
- determining a time shift of the signal of interest;
- aggregating time shift data;
- resolving a position of an emitter from which the signal of interest is emitted;
- and
- displaying the position of the emitter on a display of the spectrum analysis and management device.
Dependencies are inferred from the claim text.