Author, as appears in the article.: Lazaro, Antonio; Lazaro, Marc; Villarino, Ramon; Girbau, David
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Girbau Sala, David / Lázaro Guillén, Antonio Ramon / Lázaro Martí, Marc / Villarino Villarino, Ramón Maria
Keywords: V2x V2i System Rfid Pedestrian detection Modulated backscatterer Millimeter band Doppler radar Automotive radar v2x v2i services rfid pedestrian detection modulated backscatterer millimeter band communication automotive radar
Abstract: In recent years, there has been a significant increase in the number of collisions between vehicles and vulnerable road users such as pedestrians, cyclists, road workers and more recently scooter riders, especially in urban streets. This work studies the feasibility of enhancing the detection of these users by means of CW radars because they have a low radar cross section. Since the speed of these users is usually low, they can be confused with clutter due to the presence of large objects. To this end, this paper proposes, for the first time, a method based on a spread spectrum radio communication between vulnerable road users and the automotive radar consisting of modulating a backscatter tag, placed on the user. In addition, it is compatible with low-cost radars that use different waveforms such as CW, FSK or FMCW, and hardware modifications are not required. The prototype that has been developed is based on a commercial monolithic microwave integrated circuit (MMIC) amplifier connected between two antennas, which is modulated by switching its bias. Experimental results with a scooter, under static and moving conditions, using a low-power Doppler radar at a 24 GHz band compatible with blind spot radars, are provided.
Thematic Areas: Zootecnia / recursos pesqueiros Química Medicine (miscellaneous) Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Linguística e literatura Letras / linguística Interdisciplinar Instruments & instrumentation Instrumentation Information systems Geografía Geociências Farmacia Engineering, electrical & electronic Engenharias iv Engenharias iii Engenharias ii Engenharias i Electrochemistry Electrical and electronic engineering Educação física Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, analytical Biotecnología Biodiversidade Biochemistry Atomic and molecular physics, and optics Astronomia / física Arquitetura, urbanismo e design Analytical chemistry
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: marc.lazaro@urv.cat marc.lazaro@urv.cat antonioramon.lazaro@urv.cat david.girbau@urv.cat ramon.villarino@urv.cat
Author identifier: 0000-0003-3160-5777 0000-0001-7995-5536 0000-0001-9692-8943
Record's date: 2024-10-26
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.mdpi.com/1424-8220/23/5/2730
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Sensors. 23 (5): 2730-
APA: Lazaro, Antonio; Lazaro, Marc; Villarino, Ramon; Girbau, David (2023). Smart Spread Spectrum Modulated Tags for Detection of Vulnerable Road Users with Automotive Radar. Sensors, 23(5), 2730-. DOI: 10.3390/s23052730
Article's DOI: 10.3390/s23052730
Entity: Universitat Rovira i Virgili
Journal publication year: 2023
Publication Type: Journal Publications