Development of Ultra-Wideband Short-Range Impulse Radar System for Vehicular Applications

Kiyoshi HAMAGUCHI  Hiroyo OGAWA  Takehiko KOBAYASHI  Ryuji KOHNO  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E88-C   No.10   pp.1922-1931
Publication Date: 2005/10/01
Online ISSN: 
DOI: 10.1093/ietele/e88-c.10.1922
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Section on Recent Technologies on Devices, Circuits, and Systems for Millimeter-wave ITS Applications)
Category: 
Keyword: 
impulse radar,  ultra wideband,  UWB,  vehicular,  system,  laboratory experiment,  intelligent transport system,  ITS,  

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Summary: 
This paper introduces a state-of-art on an ultra-wideband (UWB) technology in intelligent transport systems (ITS). To examine the detection performance of a UWB short-range radar for vehicular applications, we developed a 26-GHz band short-range UWB radar system with an embedded compact MMIC-based RF module. In this paper, we briefly comment on the current regulatory environment for UWB radar systems by outlining the structure of an international organization involved in examining the regulatory status of these systems. We then describe the principles of detection and system design for impulse radar, the radar system that we developed, and a MMIC-based RF module as well as the performance of these devices. We measured their performance in a series of laboratory experiments and also measured UWB radar cross sections of an automobile. The results of our experiments suggest that our radar system is capable of detecting targets with a range resolution of around 9 cm.