Estimating angle measurements for source tracking using a phased array system

A System on Chip (SoC) comprising:

• a transceiver configured to couple to a plurality of antenna elements to transmit to or receive from an antenna positioned at an angle relative to the plurality of antenna elements, radio frequency (RF) signals;
• a processor coupled to the transceiver to process digital values representing the RF signals, wherein the processor is to:
• obtain a raw angle sample;
• update a statistical model with the raw angle sample;
• identify one or more angle scenarios from the statistical model using a statistical classifier;
• determine an estimated angle value for each of the one or more angle scenarios from the statistical model;
• calculate a confidence value for the estimated angle value for each of the one or more angle scenarios from the statistical model;
• and
• when the confidence value for the estimated angle value for the one or more angle scenarios is less than a confidence threshold,
• estimate a number of multipaths between the plurality of antenna elements and the antenna from the one or more angle scenarios,
• estimate an angled area between the plurality of antenna elements and the antenna from the estimated angle values and the corresponding confidence values to obtain an estimated angled area value, and
• report the number of multipaths and the estimated angled area value.

A method comprising:

• obtaining, by a processing device, raw angle samples from radio frequency (RF) signals transmitted or received by a plurality of antenna elements, wherein the RF signals are transmitted to or received from an antenna located at an angle relative to the plurality of antenna elements;
• updating, by the processing device, a statistical model with the raw angle samples;
• identifying, by the processing device, one or more angle scenarios from the statistical model using a statistical classifier;
• determining, by the processing device, an estimated angle value for each of the one or more angle scenarios from the statistical model;
• estimating, by the processing device, a confidence value for the estimated angle value for each of the one or more angle scenarios from the statistical model;
• and
• when the confidence value for the estimated angle value for the one or more angle scenarios is less than a confidence threshold,
• estimating, by the processing device, a number of multipaths between the plurality of antenna elements and the antenna from the one or more angle scenarios,
• estimating, by the processing device, an angled area between the plurality of antenna elements and the antenna from the estimated angle values and the corresponding confidence values to obtain an estimated angled area value, and
• reporting, by the processing device, the number of multipaths and the estimated angled area value.