Multi-Point Vehicular Positioning via Millimeter-Wave Transmissions

Multi-point detection of the full-scale environment is an important issue in autonomous driving. The state-of-the-art positioning technologies (such as RADAR and LIDAR) are incapable of fast multi-point detection with high resolution. Some relevant fatal accidents recently further expose such limitation of vehicular positioning and sensing. To address this issue, this paper presents a novel multi-point vehicular positioning technology via millimeter-wave (mmWave) transmission. This powerful technology enables the sensing vehicle (SV) to capture both the shape and location information of the target vehicle (TV). A phase-difference-of-arrival (PDoA) based hyperbolic positioning algorithm is designed to achieve the prerequisite synchronization. The stepped-frequency-continuous-wave (SFCW) is utilized as signals in this approach for multi-point detection of the TVs. In the end, the realistic simulation of vehicular positioning in rural scenarios demonstrates the effectiveness of the proposed multi-point vehicular positioning techniques.