Localization using carrier phase information

A device comprising:

• a transceiver;
• and
• a processor operably connected to the transceiver, the processor configured to:
• obtain range estimates and carrier phase estimates from each of multiple anchors;
• in response to determining that a trilateration technique is to be performed, (i) obtain improved range estimates using the carrier phase estimates and (ii) determine a first location estimate of a target device using the trilateration technique and the improved range estimates;
• in response to determining that a triangulation technique is to be performed, (i) obtain differential range estimates using the carrier phase estimates and (ii) determine a second location estimate of the target device using the triangulation technique and the differential range estimates;
• and
• combine the first location estimate and the second location estimate to determine an overall location estimate of the target device.

A non-transitory computer readable medium comprising program code that, when executed by a processor of a device, causes the device to:

• obtain range estimates and carrier phase estimates from each of multiple anchors;
• in response to determining that a trilateration technique is to be performed, (i) obtain improved range estimates using the carrier phase estimates and (ii) determine a first location estimate of a target device using the trilateration technique and the improved range estimates;
• in response to determining that a triangulation technique is to be performed, (i) obtain differential range estimates using the carrier phase estimates and (ii) determine a second location estimate of the target device using the triangulation technique and the differential range estimates;
• and
• combine the first location estimate and the second location estimate to determine an overall location estimate of the target device.