Target angle determination using vehicle radar elements with local reference signals
AssigneeGM Global Technology Operations LLC
InventorOded Bialer
Life of this patent
Estimating the term…
Abstract
A method and system to determine angle of arrival of a target include one or more transmitters, one or more receivers, and one local oscillator to provide a local reference signal each in two or more transceiver nodes. The system also includes a controller to determine obtained phase differences for each of the two or more transceiver nodes. Each of the obtained phase differences is between a signal transmitted by one of the one or more transmitters and received by one of the one or more receivers of a same one of the two or more transceiver nodes. The controller estimates the angle of arrival of the target based on the obtained phase differences determined for the two or more transceiver nodes.
Claims20
A system to determine angle of arrival of a target, comprising:
- one or more transmitters, one or more receivers, and one local oscillator configured to provide a local reference signal each in two or more transceiver nodes;
- and
- a controller configured to determine obtained phase differences for each of the two or more transceiver nodes, wherein each of the obtained phase differences is between a signal transmitted by one of the one or more transmitters and received by one of the one or more receivers of a same one of the two or more transceiver nodes, and to estimate the angle of arrival of the target based on the obtained phase differences determined for the two or more transceiver nodes.
A method of determining angle of arrival of a target, comprising:
- transmitting a signal from each of one or more transmitters of each of two or more transceiver nodes, wherein the signal transmitted from each of the two or more transceiver nodes is generated based on a different local reference signal;
- receiving a resulting reflection signal at each of one or more receivers, wherein the receiving the resulting reflection signal is based on a transmission from a same one of the two or more transceiver nodes;
- determining obtained phase differences for each of the two or more transceiver nodes, wherein each of the obtained phase differences is between a signal transmitted by one of the one or more transmitters and received by one of the one or more receivers of a same one of the two or more transceiver nodes;
- and
- estimating the angle of arrival of the target based on the obtained phase differences determined for the two or more transceiver nodes.
A method of fabricating a system to determine angle of arrival of a target, the method comprising:
- assembling two or more transceiver nodes to each include one or more transmitters, one or more receivers, and one local oscillator configured to generate a local reference signal;
- and
- coupling a controller to the two or more transceiver nodes to determine the angle of arrival of the target based on determining obtained phase differences for each of the two or more transceiver nodes, wherein each of the obtained phase differences is between a signal transmitted by one of the one or more transmitters and received by one of the one or more receivers of a same one of the two or more transceiver nodes.
Dependencies are inferred from the claim text.