AMPLITUDE MODULATED RADAR, APPARATUS AND METHOD FOR REDUCING DISTANCE MEASUREMENT ERROR OF AMPLITUDE MODULATED RADAR

摘要

The present invention relates to an amplitude modulated radar, an apparatus and a method for reducing distance measurement error of the amplitude modulated radar. Provided is an amplitude modulated radar including: an amplitude modulated signal transmission unit which generates an amplitude modulated signal by synthesizing a modulation frequency signal and a carrier frequency signal, and transmits the generated amplitude modulation signal to a target; a detector which detects a radio signal including the amplitude modulation signal reflected and received from the target; a phase detection unit which generates phase retardation data by detecting phase retardation between the radio signal detected by the detector and the modulation frequency signal; a demodulation unit which demodulates the radio signal to an I/Q signal by using the carrier frequency signal; and a signal processing unit which samples the phase retardation data by using the I/Q signal, and calculates distance information of the target by using the sampled phase retardation data.;COPYRIGHT KIPO 2014; [Reference numerals] (113) Power attenuator; (120) Detector; (130) Phase detection unit; (142) Low pass filter; (150) Signal processing unit; (160) Analog-digital converter; (190) Power distributer