Generate overlapping chirp transmissions with a single chirp generator
AssigneeGM Global Technology Operations LLC
InventorsOded Bialer, David Shapiro
Life of this patent
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Abstract
A radar system includes a signal generator to generate a linear frequency modulated continuous wave signal as a base chirp, and one or more frequency shifters to generate respective one or more additional chirps from the base chirp. The radar system also includes two or more switches. One of the two or more switches obtains a portion of the base chirp as a base transmit signal, and remaining ones of the two or more switches respectively obtain a portion of each of the one or more additional chirps as one or more additional transmit signals for transmission by the radar system. At least a portion of the base transmit signal and the one or more additional transmit signals overlaps in time.
Claims20
A radar system, comprising:
- a signal generator configured to generate a linear frequency modulated continuous wave signal as a base chirp;
- one or more frequency shifters configured to generate respective one or more additional chirps from the base chirp;
- two or more switches, one of the two or more switches configured to obtain a portion of the base chirp as a base transmit signal, and remaining ones of the two or more switches configured to respectively obtain a portion of each of the one or more additional chirps as one or more additional transmit signals for transmission by the radar system, wherein each of the base chirp and the one or more additional chirps has a same frequency range and at least a portion of the base transmit signal and the one or more additional transmit signals overlaps in time.
A method, comprising:
- disposing a signal generator configured to generate a linear frequency modulated continuous wave signal as a base chirp of a radar system;
- arranging one or more frequency shifters to generate respective one or more additional chirps from the base chirp;
- configuring a base switch to obtain a portion of the base chirp as a base transmit signal and one or more additional switches to respectively obtain a portion of each of the one or more additional chirps as one or more additional transmit signals for transmission by the radar system, wherein each of the base chirp and the one or more additional chirps has a same frequency range and at least a portion of the base transmit signal and the one or more additional transmit signals overlap in time.
A method, comprising:
- generating, using a chirp generator, a linear frequency modulated continuous wave signal as a base chirp of a radar system;
- generating, using one or more frequency shifters and the base chirp, respective one or more additional chirps;
- controlling a base switch to obtain a portion of the base chirp as a base transmit signal and one or more additional switches to respectively obtain a portion of each of the one or more additional chirps as one or more additional transmit signals for transmission by the radar system, wherein each of the base chirp and the one or more additional chirps has a same frequency range and at least a portion of the base transmit signal and the one or more additional transmit signals overlap in time.
Dependencies are inferred from the claim text.