Patent ID: 11867792
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 27:
28. An object velocity detection method, the method comprising:
transmitting a first transmission signal through a transmitting antenna during a first transmission time interval;
transmitting a second transmission signal through a different transmitting antenna during a second different transmission time interval;
receiving, by each of first reception antennas and second different reception antennas of a plurality of receiving antennas, a first reception signal in response to the first transmission signal being reflected from an object and returned;
receiving, by each of the first reception antennas and the second different reception antenna, a second reception signal in response to the second transmission signal being reflected from the object and returned, wherein at least one of the first reception signals, received by a respective first reception antenna of the first reception antennas, and at least one of the second reception signals, received by a respective second reception antenna of the second reception antennas, a first phase difference of the first reception signal and a second phase difference of the second reception signal being based on a distance between the pair of antennas;
estimating a Doppler effect, with respect to a movement of the object, dependent on the at least one first reception signal and the at least one second reception signal;
generating one or more Doppler compensated first signals and one or more Doppler compensated second signals by respectively removing the Doppler effect from one or more of the second reception signals that are each received at a corresponding second reception antenna of the second reception antennas, and from one or more other second reception signals that are each received at a corresponding first reception antenna of the first reception antennas;
estimating an angle value of the object, as an estimation of an included angle value in the one or more of the second reception signals and the one or more other second reception signals, dependent on the one or more Doppler compensated first signals and the one or more Doppler compensated second signals;
generating angle value compensated signals by removing the estimated angle value from the second reception signals; and
determining a velocity of the object dependent on the generated angle value compensated signals.