NEAR DISTANCE MEASURING METHOD USING AN OVERLAP BASED CSS SYSTEM FOR RECEIVING THE SIGNAL TRANSMITTING A CHIRP SIGNAL IN A CSS(CHIRP SPREAD SPECTRUM) TERMINAL TO A TARGET AND COMING BACK AND AN APPARATUS THEREOF

摘要

PURPOSE: A near distance measuring method using an overlap based CSS(Chirp Spread Spectrum) system and an apparatus thereof are provided to efficiently measure a distance by simplifying hardware configuration.;CONSTITUTION: A plurality of overlapped chirp signals is transmitted to a target(S1). A chirp signal, which is reflected from the target and comes back, is received(S2). The distance to the target is measured using a time difference between the first peak of a matching filter over a received signal and a chirp signal transmission point(S3).;COPYRIGHT KIPO 2012