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Mathematical Problems in EngineeringVolume 2013 2013, Article ID 172728, 7 pages

Research Article

Key Laboratory of Advanced Transducers & Intelligent Control System, Ministry of Education, Shanxi, China

Institute of Optoelectronic Engineering, College of Physics & Optoelectronics, Taiyuan University of Technology, No. 79 Yingze West Street, Taiyuan, Shanxi, China

Received 22 October 2013; Accepted 26 November 2013

Academic Editor: Hai Yu

Copyright © 2013 Tong Zhao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We report our recent works on free space ranging with chaotic light. Using a laser diode with optical feedback as chaotic source, a prototype of chaotic lidar has been developed and it can achieve a range-independent resolution of 18 cm and measurable distance of 130 m at least. And its antijamming performance is presented experimentally and numerically. Finally, we, respectively, employ the wavelet denoising method and the correlation average discrete-component elimination algorithm to detect the chaotic signal in noisy environment and suppress the side-lobe noise of the correlation trace.

Author: Tong Zhao, Bing-jie Wang, Yun-cai Wang, and Xiao-ming Chang



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