Systems, methods, and devices for electronic spectrum management
First Claim
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1. A method for tracking a signal origin using a spectrum analysis and management device, comprising the steps of:
- determining a Time Difference of Arrival for a signal of interest;
determining a Frequency Difference of Arrival for the signal of interest;
identifying a location from which the signal of interest is transmitted;
determining that less than four known emitters are present at the location;
measuring an angle of arrival for the single of interest and the less than four known emitters;
measuring a frequency shift for the signal of interest;
obtaining a cross ambiguity function for the signal of interest;
resolving a position of an emitter from which the signal is emitted; and
displaying the position of the emitter of the signal of interest.
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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.
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Citations
17 Claims
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1. A method for tracking a signal origin using a spectrum analysis and management device, comprising the steps of:
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determining a Time Difference of Arrival for a signal of interest; determining a Frequency Difference of Arrival for the signal of interest; identifying a location from which the signal of interest is transmitted; determining that less than four known emitters are present at the location; measuring an angle of arrival for the single of interest and the less than four known emitters; measuring a frequency shift for the signal of interest; obtaining a cross ambiguity function for the signal of interest; resolving a position of an emitter from which the signal is emitted; and displaying the position of the emitter of the signal of interest. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for estimating a signal origin using a spectrum analysis and management device, comprising the steps of:
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computing an Arrival Frequency and an Arrival Phase for multiple instances of a signal of interest; determining a Frequency Difference of Arrival for the signal of interest; comparing the Frequency Difference of Arrival for the signal of interest to data associated with two known emitters to estimate the position of an emitter of the signal of interest when either the emitter of the signal of interest or the spectrum analysis and management device is moving; and indicating the estimated position of the emitter of the signal of interest on a display of the spectrum management device. - View Dependent Claims (15, 16, 17)
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Specification