Signal-source trackers on Infrared-based Dedicated Short-Range Communication

Lu, Po-Wen; Chen, Rongshun

doi:10.1016/j.infrared.2009.10.005

Cited by 13 publications

(14 citation statements)

References 24 publications

(18 reference statements)

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“…Therefore, the signaldirection discriminator has to be very carefully calibrated. In our previous work we made use of so-called "normalto-the-module" calibration by which we numerically adjusted the output received signal strengths of all the electronic receiving channels to the same when the signal incident on each planar receiving module from normal direction relative to the module plane [5], [6]. In current study, in order to calibrate the discrepancy of the characteristics among different electronic receiving channels and another source of inaccuracy, i.e., the nonideal receiving patterns of the planar receiving modules [6], simultaneously, we adopt another method called "normal-to-the-discriminator" calibration.…”

Section: Structure Of the Infrared Signal-direction Discriminatormentioning

confidence: 99%

Accuracy and calibration of infrared signal-direction discriminator

Shieh

Wang

2015

2015 IEEE International Conference on Consumer Electronics - Taiwan

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Vehicle positioning in infrared vehicle-toinfrastructure communication systems can be realized with the aid of signal-direction discrimination. The coming direction of the infrared signal can be acquired with high precision by comparing the sgnal strengths received by different receiving modules in the signal-direction discriminator, provided that all the receiving modules together with their amplification circuits have the same characteristics. This can be fulfilled by a careful calibration. In this paper, the results of two different calibration methods are compared in order to obtain the coming direction of the signal with high accuracy for the aforementioned application.

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Section: Structure Of the Infrared Signal-direction Discriminatormentioning

confidence: 99%

Accuracy and calibration of infrared signal-direction discriminator

Shieh

Wang

2015

2015 IEEE International Conference on Consumer Electronics - Taiwan

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“…As seen in Fig. 1, 1D Trackers 1 and 2 are to detect ψ S and θ S, x , respectively, where θ S,x is the elevation angle on xz-plane, and ψ S and θ S,x can be determined by (1) and (2) [18] …”

Section: Positioning Coordinatesmentioning

confidence: 99%

Infrared‐based vehicular positioning with the automatic radiation‐strength control

Chen

2014

IET Intelligent Transport Systems

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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.

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“…In the preceding research [7], three IR receiver modules used in IR-DSRC are utilized to compose a 2-dimensional IR signal source tracker as shown in Fig. 1.…”

Section: A Previous Workmentioning

confidence: 99%

The Dedicated Short-Range Vehicle Tracking

Chen

2010

2010 IEEE 71st Vehicular Technology Conference

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This paper describes the tracking of a vehicle by using a 3-dimensional positioning system, which is composed of two 2-dimensional Infrared (IR) signal source trackers. Once the 2D trackers detect the incident angles of the IR signal source, the 3D positioning system will locate the IR signal source. In the experiments, the detection on the longitudinal direction is concerned, and the IR signal source on the preceding vehicle is detected by the 3D positioning system implemented on the following vehicle. While GPS cannot tell two adjacent vehicles, the short-ranged positioning system is able to locate the nearby moving target.

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Signal-source trackers on Infrared-based Dedicated Short-Range Communication

Cited by 13 publications

References 24 publications

Accuracy and calibration of infrared signal-direction discriminator

Accuracy and calibration of infrared signal-direction discriminator

Infrared‐based vehicular positioning with the automatic radiation‐strength control

The Dedicated Short-Range Vehicle Tracking

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