Detecting a moving object based on a phase of channel impulse responses
AssigneeNXP B.V.
InventorsStefan Tertinek, Salvatore Drago, Raf Lodewijk Jan Roovers
Life of this patent
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Abstract
A moving object detector detects a moving object in a channel. The detection comprises the detector receiving a plurality of frames based on a transmitter transmitting a plurality of frames over a channel. One or more channel impulse responses (CIRs) of the channel is determined based on the received plurality of frames. The detector determines a CIR phase for each of the CIRs and a phase signal is formed based on a phase value of the CIR phase for each of the CIRs. The detector compares the phase signal with a target signal and detects the moving object in the channel based on the comparison.
Claims20
A method to detect a moving object, the method comprising:
- receiving, by a moving object detector, a plurality of frames transmitted over a channel;
- determining, by the detector, one or more channel impulse responses (CIRs) associated with the channel based on the received plurality of frames;
- determining, by the detector, a CIR phase for each of the CIRs;
- forming, by the detector, a phase signal based on a phase value of the CIR phase for each of the CIRs;
- comparing, by the detector, the phase signal with a target signal;
- and
- detecting, by the detector, the moving object in the channel based on the comparison.
A moving object detector comprising:
- an analog/digital front end implemented with circuitry to receive a plurality of frames from a channel;
- a CIR estimator implemented with circuitry to determine one or more CIRs of the channel based on the received plurality of frames;
- a phase extractor implemented with circuitry to determine a CIR phase for each the CIRs and form a phase signal based on a phase value of the CIR phase for each of the CIRs;
- and
- an object detector implemented with circuitry to compare the phase signal with a target signal and detect the moving object in the channel based on the comparison.
Dependencies are inferred from the claim text.