Technical Solutions for Automotive Intermodulation Radar for Detecting Vulnerable Road Users

Author

Viikari, Ville ; Kantanen, Mikko ; Varpula, Timo ; Lamminen, Antti ; Alastalo, Ari ; Mattila, Tomi ; Seppä, Heikki ; Pursula, Pekka ; Saebboe, Jone ; Cheng, Shi ; Al-Nuaimi, Mustafa ; Hallbjörner, Paul ; Rydberg, Anders

Author_Institution

Sensing & Wireless Devices, VTT Tech. Res. Centre, Espoo

fYear

2009

fDate

26-29 April 2009

Firstpage

1

Lastpage

5

Abstract

This paper presents building blocks for a proposed automotive intermodulation radar for detecting and identifying vulnerable road users (VRUs). The intermodulation radar transmits at two frequencies and it has receivers both for normal reflections and for reflections from VRUs at the intermodulation frequency. A possible radar architecture is presented and modulation techniques are discussed. Different mixing elements of radar reflectors are studied with simulations. An antenna structure enabling a wearable reflector that can be integrated into clothes is designed and characterized. The simulated and measured performance of the radar reflector is used to estimate the achievable detection range.

Keywords

intermodulation; radar antennas; radio receivers; road vehicle radar; antenna structure; automotive intermodulation radar; intermodulation frequency; radar architecture; radar reflectors; radio receivers; vulnerable road user detection; Automotive engineering; Bandwidth; Frequency; Radar antennas; Radar detection; Radio spectrum management; Reflection; Reflector antennas; Road accidents; Transponders;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th

Conference_Location

Barcelona

ISSN

1550-2252

Print_ISBN

978-1-4244-2517-4

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2009.5073875

Filename

5073875