Adaptive transmission and interference cancellation for MIMO radar
First Claim
1. A radar sensing system for a vehicle, the radar sensing system comprising:
- a transmit pipeline configured for installation and use on a vehicle, wherein the transmit pipeline comprises a plurality of transmitters configured to transmit radio signals;
a receive pipeline configured for installation and use on the vehicle, wherein the receive pipeline comprises a plurality of receivers configured to receive radio signals that include the transmitted radio signals transmitted by the transmitters and reflected from objects in an environment;
a memory module configured to store interference estimates for each receiver of the plurality of receivers that are estimates of interfering radio signals received by each of the receivers that are transmitted by each respective transmitter of the plurality of transmitters; and
wherein each receiver of the plurality of receivers is configured to mitigate interference that is due to interfering radio signals transmitted by the plurality of transmitters, as defined by the stored interference estimates of the plurality of transmitters for each particular receiver.
1 Assignment
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Accused Products
Abstract
A radar sensing system for a vehicle includes a transmit pipeline, a receive pipeline, and a memory module. The transmit pipeline includes transmitters for transmitting radio signals. The receive pipeline includes receivers for receiving radio signals that include the transmitted radio signals transmitted by the transmitters and reflected from objects in an environment. The memory module is configured to store interference estimates for each receiver of the plurality of receivers that are estimates of interfering radio signals received by each of the receivers that are transmitted by each respective transmitter of the plurality of transmitters. Each receiver of the plurality of receivers is configured to mitigate interference that is due to interfering radio signals transmitted by the plurality of transmitters, as defined by the stored interference estimates of the plurality of transmitters for each particular receiver.
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Citations
20 Claims
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1. A radar sensing system for a vehicle, the radar sensing system comprising:
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a transmit pipeline configured for installation and use on a vehicle, wherein the transmit pipeline comprises a plurality of transmitters configured to transmit radio signals; a receive pipeline configured for installation and use on the vehicle, wherein the receive pipeline comprises a plurality of receivers configured to receive radio signals that include the transmitted radio signals transmitted by the transmitters and reflected from objects in an environment; a memory module configured to store interference estimates for each receiver of the plurality of receivers that are estimates of interfering radio signals received by each of the receivers that are transmitted by each respective transmitter of the plurality of transmitters; and wherein each receiver of the plurality of receivers is configured to mitigate interference that is due to interfering radio signals transmitted by the plurality of transmitters, as defined by the stored interference estimates of the plurality of transmitters for each particular receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 19, 20)
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13. A method of operating a radar sensing system for a vehicle, the method comprising:
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providing a radar system comprising (i) a plurality of transmitters configured for installation and use on a vehicle and configured to transmit radio signals, (ii) a plurality of receivers configured for installation and use on the vehicle and configured to receive radio signals that include the transmitted radio signals reflected from objects in an environment, and (iii) a memory module configured to store interference estimates for each receiver of the plurality of receivers that are estimates of interfering radio signals received by each of the receivers that are transmitted by each respective transmitter of the plurality of transmitters; transmitting radio signals with at least two transmitters of the plurality of transmitters and receiving radio signals that include the transmitted radio signals transmitted by the transmitters and reflected from objects in an environment; and mitigating interference at each receiver of the plurality of receivers that is due to interfering radio signals transmitted by the at least two transmitters of the plurality of transmitters, as defined by the stored interference estimates of the plurality of transmitters for each particular receiver. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification