Patent ID: 7990310

Claim:
An Ultra-WideBand (UWB) ranging method using a narrowband interference suppression waveform, comprising: a first step of transmitting a transmission signal to a target object; a second step of receiving the transmission signal reflected from the target object; a third step of generating a template signal by combining the narrowband interference suppression waveform and a channel estimation signal together; a fourth step of generating a correlation output signal by convoluting the template signal and the signal received at the second step; and a fifth step of calculating a distance using a time delay when the correlation output signal has a maximum value thereof; wherein the narrowband interference suppression waveform is any one of two waveforms that are expressed by the following Equation: w r1 ( t )= g ( t−δ 1 /2)+ g ( t+δ 1 /2) w r2 ( t )= g ( t−δ 2 /2)− g ( t+δ 2 /2) where g(t) is a basic UWB pulse waveform, δ 1 =(N+1/2)f 1 , δ 2 =(N)f 1 , N is an integer, and f i is a center frequency of a narrowband interference signal.