Speed ​​and distance detection system, speed and distance detecting device, and the speed and distance detection method

摘要

According to this embodiment, the speed, distance detection system comprising a transmitter and a receiver, detects the distance of the receiver between the transmitter, the transmitter sends out a composite frequency signal, The receiver, calculation means for calculating a reception unit for receiving the composite frequency signal transmitted from the transmitter, the difference in the amplitude estimates or power estimates of the multiple component becomes the target accuracy, and speed estimating means for estimating a velocity of the receiver or the transmitter, the speed when the difference reaches the target precision, when the difference reaches the target accuracy, the phase of the frequency signal of the plurality of component Based on the phase of extracting each, were extracted, calculates the propagation delay time of the multi-frequency signal of the receiver between the transmitter, based on the propagation delay time calculated, the receiver between the transmitter I have and a distance estimation means for estimating a distance.