Digital Solution for inter-vehicle localisation system by means of Direction-Of-Arrival

This paper presents the measurement results of direction-of-arrival (DOA) in azimuth plan using a uniform linear array (ULA) and an all digital receiver array in which the radio frequency signal is directly digitized by the analog-to-digital converters (ADC). Our further goal is the real-time measurement of DOA devoted to an inter-vehicle in the intelligent transport systems. The DOA of RF signal is estimated using the high resolution method named MUSIC (multiple signal classification). The measurement setup composed of a 4 quasi-Yagi element ULA and of 4 parallel all digital receivers based on a digital oscilloscope is realized. The simulation results using ADS (advanced design system) and the measurement results show that the DOA is accurately determined with this all digital receiver solution.