CODED QUADRATURE DOPPLER RADER SENSOR USING SINGLE MIXER AND METHOD SENSING

摘要

PURPOSE: A coded quadrature Doppler raider sensor using a single mixer and a method sensing are provided to minimize the malfunction of a Doppler radar sensor by calculating the quadrature Doppler signal and removing an external cluster. CONSTITUTION: An oscillator(301) generates an oscillating frequency signal of a fixed frequency band. A code signal generator(303) generates a code signal having a certain bit. A clock signal generator(308) generates a clock signal having a half period of the code signal.