Wireless sensing with V2X signals at a traffic junction

With the Communication, Localization and Surveillance (CLS) technology, moving road users can be detected by transmitting V2X radio signals at intersections. The concept behind this is called wireless sensing and is based on the propagation properties of radio waves that are reflected and scattered by objects. With CLS technology, baseband data (pulse responses) are recorded at four receiving antennas.

As part of the VIDETEC project, the CLS system was installed at a test intersection and a first data set was collected to record road users. Parallel reference systems (GNSS-RTK and laser scanners) document the data collection and allow validation and pre-processing for later use of the data set. During several days of use of the CLS system at the test intersection, the baseband raw data were measured in different configurations and traffic scenarios.

借助通信、定位与监视（Communication, Localization and Surveillance，CLS）技术，可通过在交叉口发射V2X无线电信号实现对移动道路使用者的检测。其背后的核心概念为无线感知，该概念基于无线电波经物体反射与散射后的传播特性。依托CLS技术，可在四路接收天线处记录基带数据（脉冲响应）。
作为VIDETEC项目的组成部分，CLS系统被部署于测试交叉口，并采集了首个用于记录道路使用者的数据集。并行参考系统（GNSS-RTK与激光扫描仪）可对数据采集过程进行记录，同时支持该数据集后续应用所需的验证与预处理工作。在测试交叉口部署CLS系统的数天周期内，研究人员针对多种配置与交通场景采集了基带原始数据。