Velocity measurement device, velocity measurement program, recording medium, and velocity measurement method

A velocity measurement program stored on a non-transitory computer readable medium for causing a computer to measure a velocity of a measurement object, the velocity measurement program causing the computer to execute processes of:

• transmitting a transmission signal by a transmitting antenna toward a measurement object;
• and
• obtaining, from a phase difference between reception signals generated from a reflected wave from the measurement object received with a plurality of receiving antennas, a phase plane of the reflected wave with respect to an antenna plane of the plurality of receiving antennas to specify an arrival direction of the reflected wave, obtaining a distance to the measurement object from a propagation delay time of the reflected wave, calculating a phase fluctuation of the reflected wave to calculate a velocity of the measurement object from the phase fluctuation, and measuring a velocity of a vehicle running on a road as the velocity of the measurement object.

A non-transitory computer-readable recording medium recording a velocity measurement program for causing a computer to measure a velocity of a measurement object, the velocity measurement program causing the computer to execute the processes of:

• transmitting a transmission signal by a transmitting antenna toward a measurement object;
• and
• obtaining, from a phase difference between reception signals generated from a reflected wave from the measurement object received with a plurality of receiving antennas, a phase plane of the reflected wave with respect to an antenna plane of the plurality of receiving antennas to specify an arrival direction of the reflected wave, obtaining a distance to the measurement object from a propagation delay time of the reflected wave, calculating a phase fluctuation of the reflected wave to calculate a velocity of the measurement object from the phase fluctuation, and measuring a velocity of a vehicle running on a road as the velocity of the measurement object.