Estimation and compensation of transceiver position offsets in a radar system for targets at unknown positions
AssigneeGM Global Technology Operations LLC
InventorsAmnon Jonas, Oded Bialer
Life of this patent
Estimating the term…
Abstract
A radar system includes two or more nodes. Each node includes one or more transmit antennas and one or more receive antennas. The radar system also includes a processor to obtain received signals at each of the two or more nodes, estimate an angle of arrival of each target identified based on the received signals, estimate an offset of each of the two or more nodes from a known location, and compensate for the offsets in the process of estimating the angle of arrival for subsequent targets in the received signals.
Claims20
A radar system, comprising:
- two or more nodes, each node including one or more transmit antennas and one or more receive antennas;
- and
- a processor configured to obtain received signals at each of the two or more nodes, estimate an angle of arrival of each target identified based on using the received signals at each of the two or more nodes together, estimate an offset of each of the two or more nodes from a known location at which relative location among the two or more nodes is known, and compensate for the offsets in the process of estimating the angle of arrival for subsequent targets using the received signals at each of the two or more nodes together.
A method of configuring a radar system, the method comprising:
- transmitting from one or more transmit antennas of each of two or more nodes;
- receiving received signals at one or more receive antennas of each of the two or more nodes;
- estimating, using a processor, an angle of arrival of each target identified based on using the received signals at each of the two or more nodes together;
- estimating, using the processor, an offset of each of the two or more nodes from a known location at which relative location among the two or more nodes is known;
- and
- compensating, using the processor, for the offsets in the process of estimating the angle of arrival for subsequent targets using the received signals at each of the two or more nodes together.
A vehicle, comprising:
- a radar system comprising:
- two or more nodes, each node including one or more transmit antennas and one or more receive antennas;
- and
- a processor configured to obtain received signals at each of the two or more nodes, estimate an angle of arrival of each target identified based on using the received signals at each of the two or more nodes together, estimate an offset of each of the two or more nodes from a known location at which relative location among the two or more nodes is known, and compensate for the offsets in the process of estimating the angle of arrival for subsequent targets using the received signals at each of the two or more nodes together;
- and
- a vehicle controller configured to augment or automate operation of the vehicle based on the angle of arrival.
Dependencies are inferred from the claim text.