Infrared dedicated short-range communication (IR-DSRC) has been used in single-lane vehicle-to-roadside applications, and is challenged for its application in multi-lane-free-flow vehicle-to-vehicle (V2V) conditions. However, based on IR positioning technology, the IR-DSRC is expected to be useful and valuable under V2V conditions for several intelligent-transportation-system applications. In the previous studies, a three-dimensional IR positioning system was developed to position a preceding vehicle. However, the positioning performance degrades as the longitudinal or the lateral distance between vehicles increases because the resolution of the received signal is deteriorated for weak signals. In this study, onboard units (OBUs) with wide radiation-pattern designs and automatic radiation-strength control are realised to provide stable signal strength for positioning, and the non-ideality of the IR positioning system is compensated by the calibrating procedures as well. A two-vehicle trial is performed, in which the positioning OBU is installed on the most front of the following vehicle to reduce the scattering effect of the vehicle body. The experimental result demonstrates that the positioning performance is greatly improved after aforementioned improvements.
Infrared-based vehicular positioning with the automatic radiation-strength control
IET Intelligent Transport Systems ; 8 , 3 ; 273-285
2014-05-01
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
longitudinal distance , road vehicles , Global Positioning System , position control , single-lane vehicle-to-roadside applications , automatic radiation-strength control , three-dimensional IR positioning system , OBU , IR-DSRC , onboard units , infrared-based vehicular positioning , V2V conditions , multilane-free-flow vehicle-to-vehicle conditions , signal resolution , intelligent-transportation-system applications , traffic engineering computing , vehicle body , mobile communication , lateral distance , infrared dedicated short-range communication , radiation-pattern designs , signal strength , two-vehicle trial
Metadata by IET is licensed under CC BY 3.0
Infrared‐based vehicular positioning with the automatic radiation‐strength control
Wiley | 2014
|IEEE | 1986
|