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Proceedings Paper

Pulsed laser ranging techniques based on digital signal processing methods for automobile anti-collision application
Author(s): Zhihui Sun; Jiahao Deng
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Paper Abstract

A 1.55 µm digital laser radar system is designed and implemented for automobile anti-collision application. In order to reduce the influence of foggy, rainy and snowy weather on laser detection, digital signal processing methods are adopted. Multi-pulse coherent average algorithm is used to improve the signal-to-noise ratio of echo by N times. The correlation detection algorithm is adopted to estimate the time-of-flight. Multi-time delayed correlating method is used to improve the time-of-flight estimation resolution. Experimental results indicate that the digital signal processing methods in this paper can reduce the influence of bad weather conditions, and obtain high range accuracy.

Paper Details

Date Published: 3 February 2009
PDF: 11 pages
Proc. SPIE 7160, 2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, 716023 (3 February 2009); doi: 10.1117/12.806916
Show Author Affiliations
Zhihui Sun, Beijing Institute of Technology (China)
Jiahao Deng, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 7160:
2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications

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