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

Claim 33:
34. An object velocity detection method, the method comprising: receiving a first reception signal and a second reception signal in first and second different time intervals corresponding to different transmission times by first and second different antennas in a radar sensor, respectively, wherein a first phase difference of the first reception signal and a second phase difference of the second reception signal is based on a distance between the pair of antennas;
estimating a phase shift value, with respect to a movement of an object, dependent on the first reception signal and the second reception signal; generating a phase shift compensated signal by removing the phase shift value from the second reception signal;
determining an angle value of the object dependent on the first reception signal and the phase shift compensated signal;
generating an angle value compensated signal by removing the angle value from the second reception signal; and
determining a velocity of the object dependent on the generated angle value compensated signal.