Programmable code generation for radar sensing systems
First Claim
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, and configured to transmit radio signals;
a plurality of receivers configured for installation and use on the vehicle, and configured to receive radio signals that include the transmitted radio signals transmitted by the transmitters and reflected from objects in an environment; and
a programmable code generation unit configured to provide sequences of spreading code chips to digital signal generators of the transmitters and to digital baseband processing sections of the receivers;
wherein one sequence of spreading code chips is provided to each transmitter while multiple sequences of spreading code chips are provided to each receiver;
wherein a sequence of spreading code chips is used by a digital signal generator of a first transmitter of the plurality of transmitters to generate transmitted radio signals; and
wherein multiple sequences of spreading code chips are used by a digital baseband processing section of a first receiver of the plurality of receivers to process received radio signals.
3 Assignments
0 Petitions
Accused Products
Abstract
A radar sensing system for a vehicle has multiple transmitters and receivers on a vehicle. The transmitters are configured to transmit radio signals which are reflected off of objects in the environment. There are one or more receivers that receive the reflected radio signals. Each receiver has an antenna, a radio frequency front end, an analog-to-digital converter (ADC), and a digital signal processor. The transmitted signals are based on spreading codes generated by a programmable code generation unit. The receiver also makes use of the spreading codes generated by the programmable code generation unit. The programmable code generation unit is configured to selectively generate particular spreading codes that have desired properties.
281 Citations
30 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, and configured to transmit radio signals; a plurality of receivers configured for installation and use on the vehicle, and configured to receive radio signals that include the transmitted radio signals transmitted by the transmitters and reflected from objects in an environment; and a programmable code generation unit configured to provide sequences of spreading code chips to digital signal generators of the transmitters and to digital baseband processing sections of the receivers; wherein one sequence of spreading code chips is provided to each transmitter while multiple sequences of spreading code chips are provided to each receiver; wherein a sequence of spreading code chips is used by a digital signal generator of a first transmitter of the plurality of transmitters to generate transmitted radio signals; and wherein multiple sequences of spreading code chips are used by a digital baseband processing section of a first receiver of the plurality of receivers to process received radio signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for controlling a radar sensing system comprising a plurality of transmitters configured for installation and use on a vehicle, a plurality of receivers configured for installation and use on the vehicle, and a programmable code generation unit, the method comprising:
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transmitting, with the transmitters, radio signals; receiving, with the receivers, radio signals that include the transmitted radio signals transmitted by the transmitters and reflected from objects in an environment; processing, with a radio frequency (RF) front end of a first receiver of the plurality of receivers, the received radio signals and outputting processed radio signals; sampling, with an analog-to-digital converter (ADC) of the first receiver, the processed radio signals and outputting data samples; generating, with the programmable code generation unit, a sequence of spreading code chips used by a digital signal generator of a first transmitter of the plurality of transmitters to generate transmitted radio signals; and generating, with the programmable code generation unit, multiple sequences of spreading code chips used by a digital baseband processing section of the first receiver to process received radio signals. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A radar sensing system for a vehicle, the radar sensing system comprising:
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a transmitter configured for installation and use on a vehicle, and configured to transmit radio signals; a receiver configured for installation and use on the vehicle, and configured to receive radio signals that include the transmitted radio signals transmitted by the transmitters and reflected from objects in an environment; and a programmable code generation unit configured to provide sequences of spreading code chips to the transmitter and the receiver; and wherein a sequence of spreading code chips is used by the transmitter and the receiver to generate a same spreading code, which is used by the transmitter to generate the transmitted radio signals and used by the receiver to process the received radio signals. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification