Data Processing and Analysis Method of NLOS Ranging Radar System

Abstract

Abstract-We address the problem of precise ranging between trains in non-line-of-sight (NLOS) environment using a NLOS (Non Line of Sight) ranging radar. By calculating the phase delay of the received and transmitted OFDM (Orthogonal Frequency Division Multiplexing) waveform, we achieve the target of ranging in NLOS environment. Then, we compare several different data processing methods and prefer equal mean value weighted coefficient method. In addition, we analyze the ranging error according to the characteristics of the AWGN channel, thereby providing a theoretical basis for the development of the OFDM waveform phase ranging system.