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A Novel Method for Distance and Relative Velocity Measurement in Rear-End Collision Warning System
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English
Abstract
In the methodology to measure the vehicle-following distance, the general trend is to use a pulsed laser system combined with the high resolution counter to estimate the flight time of laser pulse reflected from the forward vehicle. But in this method, the resolution of distance measurement is limited by the counter resolution.
In this paper, an alternative method to measure distance and relative velocity with fairly high accuracy, which uses the integration of the time delay between transmitted and received pulses and its A/D conversion.
By using this method, we can improve the distance measurement resolution up to a centimeter unit and this satisfies our purpose.
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Citation
Jhang, K., Hyun, I., Kim, K., Song, K. et al., "A Novel Method for Distance and Relative Velocity Measurement in Rear-End Collision Warning System," SAE Technical Paper 960228, 1996, https://doi.org/10.4271/960228.Also In
References
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- Hirayama Shigeru et al “Distance Warning System for Automobiles” HINO Technical report 44 NOV. 1992
- Mutamoto Itsuro et al “Application of Laser Radar to Rear-End Collision Warning System” NISSAN Technical report 27 JUN. 1990
- Beckwith Thomas G. “Mechanical Measurements” ADDISON WESLEY 1990