Car2Car Communication Using a Modulated Backscatter and Automotive FMCW Radar

Sensors

Marc Lazaro¹  Antonio Lazaro¹  Ramon Villarino¹  David Girbau¹  Pedro de Paco² 

[1] Department of Electronics, Electrics and Automatic Control Engineering, Rovira i Virgili University, 43007 Tarragona, Spain;Telecommunications and Systems Engineering Department, Universitat Autonoma de Barcelona (UAB), 08193 Bellaterra, Spain;

关键词: Car2Car communications;    V2X;    automotive radar;    FMCW radar;    backscatter;    RFID;   

DOI  :  10.3390/s21113656

来源: DOAJ

【 摘 要 】

This work proposes the use of a modulated tag for direct communication between two vehicles using as a carrier the wave emitted by an FMCW radar installed in the vehicle for advanced driver assistance. The system allows for real-time signals detection and classification, such as stop signal, turn signals and emergency lights, adding redundancy to computer video sensors and without incorporating additional communication systems. A proof-of-concept tag has been designed at the microwave frequency of 24 GHz, consisting of an amplifier connected between receiving and transmitting antennas. The modulation is performed by switching the power supply of the amplifier. The tag is installed on the rear of the car and it answers when it is illuminated by the radar by modulating the backscattered field. The information is encoded in the modulation switching rate used. Simulated and experimental results are given showing the feasibility of the proposed solution.

【 授权许可】

Unknown