| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: method comprises irradiating a moving object with a high-frequency amplitude-modulated signal in a single rectangular pulse or simultaneous reception of a signal reflected from the object. In the signal received from the object, during the duration t of the amplitude-modulating rectangular pulse, phase incursion is measured relative to the phase of the high-frequency signal generator, and radial velocity V of the object is determined using the formula V=?·?/4?·t, where ? is the phase incursion in the reflected signal over time t; ? is the wavelength of the signal irradiating the object; t is the duration of the modulating rectangular pulse. The direction of movement of the object is determined from the sign the phase incursion ±?, where plus indicates the object is moving away from the observer and minus indicates the object is moving towards the observer.EFFECT: reduced error in measuring radial velocity of an object, where Doppler frequency is less than 1 kHz, and simple method of measuring velocity of an object.2 dwg |
