Software defined automotive radar systems
First Claim
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1. A radar sensing system for a vehicle, the radar sensing system comprising:
- a plurality of transmitters configured for installation and use on a vehicle, wherein the transmitters are configured to transmit modulated radio signals;
a plurality of receivers configured for installation and use on the vehicle, wherein the receivers are configured to receive radio signals, and wherein the received radio signals are transmitted radio signals reflected from an object in the environment;
wherein each transmitter of the plurality of transmitters comprises a digital processing unit, a digital-to-analog converter, an analog processing unit, and a transmit antenna;
wherein each receiver of the plurality of receivers comprises a receive antenna, an analog processing unit, an analog-to-digital converter, a digital front end processing unit, and a digital back end processing system;
a memory;
a control unit configured to select an operating mode for the radar sensing system and to modify the plurality of transmitters and the plurality of receivers based on a current environment condition and operation status, and based on one of a best range resolution and a best velocity resolution;
wherein range information data produced by the digital front end processing unit of at least one receiver of the plurality of receivers is stored in the memory and then processed by the corresponding digital back end processor of the at least one receiver of the plurality of receivers, as directed by the control unit; and
wherein the range information data includes range information of objects in the environment, and wherein the range information data is stored in the memory for different receivers and for different scans, and wherein the processing of the range information data is controlled by the control unit.
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Abstract
A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system processes the received signal to achieve different objectives depending on the environment, the current information stored in the radar system, and/or external information provided to the radar system. The system allows improved resolution of range, Doppler and/or angle depending on the desired objective.
199 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 plurality of transmitters configured for installation and use on a vehicle, wherein the transmitters are configured to transmit modulated radio signals; a plurality of receivers configured for installation and use on the vehicle, wherein the receivers are configured to receive radio signals, and wherein the received radio signals are transmitted radio signals reflected from an object in the environment; wherein each transmitter of the plurality of transmitters comprises a digital processing unit, a digital-to-analog converter, an analog processing unit, and a transmit antenna; wherein each receiver of the plurality of receivers comprises a receive antenna, an analog processing unit, an analog-to-digital converter, a digital front end processing unit, and a digital back end processing system; a memory; a control unit configured to select an operating mode for the radar sensing system and to modify the plurality of transmitters and the plurality of receivers based on a current environment condition and operation status, and based on one of a best range resolution and a best velocity resolution; wherein range information data produced by the digital front end processing unit of at least one receiver of the plurality of receivers is stored in the memory and then processed by the corresponding digital back end processor of the at least one receiver of the plurality of receivers, as directed by the control unit; and wherein the range information data includes range information of objects in the environment, and wherein the range information data is stored in the memory for different receivers and for different scans, and wherein the processing of the range information data is controlled by the control unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification