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US 11,112,497 B2Granted
Maximum doppler extension via recursive chirp decimation
AssigneeGM Global Technology Operations LLC
InventorsShahar Villeval, Oren Longman, Igal Bilik
Life of this patent
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Abstract
A vehicle, system for navigating the vehicle and method of operating the vehicle. The system includes a radar system and a processor. The radar system transmits a linear frequency modulated signal into an environment of the vehicle and receives a reflection of the linear frequency modulated signal from an object in the environment. The processor partitions the reflection into a plurality of streams to obtain a Doppler frequency that exceeds a maximum Doppler frequency of the radar.
Claims11
A system for navigating a vehicle, comprising:
- a radar system that transmits a linear frequency modulated signal into an environment of the vehicle and receives a reflection of the linear frequency modulated signal from an object in the environment;
- and
- a processor configured to:
- partition the reflection into a plurality of streams of equal time duration;
- obtain a frequency space for each of the plurality of streams;
- determine a range of the object from at least one of the frequency spaces;
- combine the frequency spaces into a combined frequency space;
- and
- determine the Doppler frequency from the combined frequency space that exceeds a maximum Doppler frequency of the radar system.
6 more elements
A vehicle, comprising:
- a radar system that transmits a linear frequency modulated signal into an environment of the vehicle and receives a reflection of the linear frequency modulated signal from an object in the environment;
- and
- a processor configured to:
- partition the reflection into a plurality of streams of equal time duration
- obtain a frequency space for each of the plurality of streams;
- determine a range of the object from at least one of the frequency spaces;
- combine the frequency spaces into a combined frequency space;
- and
- determine the Doppler frequency from the combined frequency space that exceeds a maximum Doppler frequency of the radar system.
6 more elements
Dependencies are inferred from the claim text.