An object is to enable measurement of position and velocity of a measurement object without the need for a complicated process such as a pairing process, without the need for a wideband signal that can be used only in a millimeter wave frequency band, and even when multiple measurement objects exist in a measurement region.A velocity measurement device includes a transmitting means, a receiving means, and a signal processing means. The transmitting means transmits a transmission signal by a transmitting antenna toward a measurement object. The receiving means receives a reflected wave from the measurement object with multiple receiving antennas and generates a reception signal for each of the receiving antennas. The signal processing means obtains a phase plane of the reflected wave with respect to an antenna plane of the multiple receiving antennas from a phase difference between the reception signals to specify an arrival direction of the reflected wave, obtains a distance to the measurement object from a propagation delay time of the reflected wave, and calculates a phase fluctuation of the reflected wave to calculate a velocity of the measurement object from the phase fluctuation.
VELOCITY MEASUREMENT DEVICE, VELOCITY MEASUREMENT PROGRAM, RECORDING MEDIUM, AND VELOCITY MEASUREMENT METHOD
GESCHWINDIGKEITSMESSVORRICHTUNG, GESCHWINDIGKEITSMESSPROGRAMM, AUFZEICHNUNGSMEDIUM UND GESCHWINDIGKEITSMESSVERFAHREN
DISPOSITIF, PROGRAMME ET PROCÉDÉ DE MESURE DE VITESSE, ET SUPPORT D'ENREGISTREMENT
2024-01-10
Patent
Elektronische Ressource
Englisch
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