RCS of Road Objects are Measured on 79GHz UWB Radar for Vehicle-location Estimation

Abstract

This paper presents radar cross section (RCS) characteristics of road objects with a 79GHz ultra-wideband (UWB) automotive radar. Generally, advanced driver assistance system (ADAS) requires camera and Lidar (light detection and ranging) sensor for safe navigation and avoidance of obstacles. However, these sensors should do not work well in bad weather conditions such as snow and fog as well as backlight. On the other hand, radar (radio detection and ranging) sensor has attracted considerable attentions because of its offering all weather capability unlike these sensors. Especially, 79GHz UWB radar with high range-resolution may recognize road objects such as guardrail, pole-corn and information-panel. There are many road objects not only on highway but also on ordinary road. In this paper, we conducted 79GHz UWB measurements of various road objects. The RCS characteristics are discussed by comparing with 24GHz and 76GHz radar in Chapter 2 and the usefulness of 79GHz radar is presented for self-vehicle location estimation in Chapter 3.