Estimating angle measurements for source tracking using a phased array system
First Claim
1. A device comprising:
- a transceiver to transmit to or receive, from another device, radio frequency (RF) signals via a plurality of antenna elements; and
a processor coupled to the transceiver, the processor to execute a multi-angle source-tracking tool configured to determine and store a set of angle estimation values of an angle between the plurality of antenna elements and an antenna of the other device, a set of confidence measurements, and at least one of an Area-of-Arrival (ARoA) value or an Area-of-Departure (ARoD) value based on the RF signals, wherein each of the set of confidence measurements indicates a confidence of an angle estimation value of the set of angle estimation values.
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Abstract
Source tracking for phased array systems is described herein. One processing device includes a transceiver to transmit or receive radio frequency (RF) signals via a plurality of antenna elements and a processor coupled to the transceiver. The processor executes a multi-angle source-tracking tool configured to determine and store a set of angle estimation values of an angle between the plurality of antenna elements and the second antenna, a set of confidence measurements, and at least one of an Area-of-Arrival (ARoA) value or an Area-of-Departure (ARoD) value based on the RF signals. Each of the set of confidence measurements indicates a confidence of an angle estimation value of the set of angle estimation values.
25 Citations
20 Claims
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1. A device comprising:
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a transceiver to transmit to or receive, from another device, radio frequency (RF) signals via a plurality of antenna elements; and a processor coupled to the transceiver, the processor to execute a multi-angle source-tracking tool configured to determine and store a set of angle estimation values of an angle between the plurality of antenna elements and an antenna of the other device, a set of confidence measurements, and at least one of an Area-of-Arrival (ARoA) value or an Area-of-Departure (ARoD) value based on the RF signals, wherein each of the set of confidence measurements indicates a confidence of an angle estimation value of the set of angle estimation values. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A System on Chip (SoC) comprising:
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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. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method comprising:
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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. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification