Patent ID: 11874386
Assignee: COBHAM ADVANCED ELECTRONIC SOLUTIONS, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. The electronic system of claim 12, wherein the plurality of RF antennas includes a third RF antenna and one or more fourth antennas, and the electronic system is configured for:
outputting by the third RF antenna a third antenna signal;
outputting by each of the one or more fourth RF antennas a respective fourth antenna signal;
converting the third antenna signal to a third optical signal;
passing the third optical signal through a third optical channel to introduce a third delay;
converting the third optical signal to a third RF signal;
determining a set of phase differences, including determining each phase difference between the third RF signal and a fourth RF signal associated with a respective fourth antenna signal outputted by a respective fourth RF antenna, wherein the set of phase differences are temporally aligned; and
determining a direction of arrival of the input RF signal based on at least the set of phase differences among the third and fourth RF signals.