CPC H04W 4/029 (2018.02) [G01S 5/0205 (2013.01)] | 20 Claims |
1. A method for positioning using signals of opportunity based on joint time of arrival (TOA) and direction of arrival (DOA) acquisition and tracking, the method comprising:
receiving, by a device, at least one signal of opportunity;
performing, by the device, an estimation of time of arrival (TOA) and direction of arrival (DOA) for the at least one signal of opportunity, wherein the estimation of TOA and DOA is jointly determined by the device;
performing, by the device, signal tracking of TOA and DOA estimates for the at least one signal of opportunity, wherein the TOA and DOA estimates are refined based on an azimuth, elevation and delay locked-loops; and
determining, by the device, a location for the device based on refined TOA and DOA estimates.
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