HIGH-RESOLUTION SHORT RANGE RADAR APPARATUS OF DIRECT SEQUENCE-ULTRA WIDE BAND TYPE

摘要

PURPOSE: A high resolution short range radar apparatus of a direct sequence ultra-wideband type is provided to arrange a short distance position tracking radar system with a DS-UWB(Direct Sequence-Ultra Wide Band) method, thereby improving precision and accuracy for less than a 10cm range in a 1GHz bandwidth. CONSTITUTION: A system clock generator(11) creates a system clock. A phase-locked loop(PLL) creates a high frequency PLL signal using the system clock as a reference signal. A first clock converter(12) and second clock converter(17) create a first clock signal and second clock signal by respectively converting the system clock. A first band pass filter(15) transmits only a signal in a desired frequency band by filtering a high frequency modulated PRBS(Pseudo Random Binary Sequence) signal. A second band pass filter(20) receives only a signal in a desired frequency band by filtering a signal received from a reception end.