Title :
Harmonic automotive radar for VRU classification
Author :
Saebboe, Jone ; Viikari, Ville ; Varpula, Timo ; Seppä, Heikki ; Cheng, Shi ; Al-Nuaimi, Mustafa ; Hallbjorner, Paul ; Rydberg, Anders
Author_Institution :
Triad AS, Stavanger, Norway
Abstract :
A harmonic radar and set of passive transponders are used for detection and identification of vulnerable road users (VRU) in automotive applications. The radar system transmits a signal consisting of two distinct frequency components in the 76-81 GHz band. A small transponder is carried by the VRU. The antenna and the electric circuitry of the transponder are printed on flexible film and it can therefore be integrated in clothes. In the transponder the two frequency components are mixed together and a harmonic product, offset from all other reflections, is transmitted back to the radar. By synthesizing this harmonic frequency the radar system can unambiguously identify and localize VRU.
Keywords :
millimetre wave radar; radar antennas; road vehicle radar; VRU classification; automotive applications; electric circuitry; frequency 76 GHz to 81 GHz; harmonic automotive radar; radar antenna; radar system; vulnerable road users; Automotive applications; Automotive engineering; Flexible printed circuits; Frequency; Passive radar; Radar antennas; Radar applications; Radar detection; Roads; Transponders; automotive radar; harmonic radar; transponder;
Conference_Titel :
Radar Conference - Surveillance for a Safer World, 2009. RADAR. International
Conference_Location :
Bordeaux
Print_ISBN :
978-2-912328-55-7
