Design of Digital Chaos Anti-jamming Lidar

GAO Hua-zheng; FENG Li-yan; YU Ming-hai; ZHANG Jian-xun; SHI Meng-yue; HU Wei-sheng; YI Li-lin

doi:10.13756/j.gtxyj.2021.03.002

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Design of Digital Chaos Anti-jamming Lidar

- Design of Digital Chaos Anti-jamming Lidar
- Study on Optical Communications Issue 3, Pages: 6-10(2021)
- 作者机构：
  
  上海交通大学　区域光纤通信网与新型光通信系统国家重点实验室，上海　200240
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2021.03.002
  CLC： TN249
- Published：10 June 2021，
  
  Received：23 November 2020，
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GAO Hua-zheng, FENG Li-yan, YU Ming-hai, et al. Design of Digital Chaos Anti-jamming Lidar. [J]. Study on Optical Communications (3):6-10(2021)
DOI：

GAO Hua-zheng, FENG Li-yan, YU Ming-hai, et al. Design of Digital Chaos Anti-jamming Lidar. [J]. Study on Optical Communications (3):6-10(2021) DOI： 10.13756/j.gtxyj.2021.03.002.

摘要

针对传统混沌激光雷达系统结构复杂和成本高的问题，文章提出了采用现场可编程门阵列（FPGA）和任意波形发生器（AWG）两种发射方案，基于改进的Logistic映射公式实时动态生成数字混沌信号。将在电上生成的数字信号调制到直调激光器上生成光域的混沌信号，混沌光信号作为激光雷达发射信号，进而配合光学收发系统搭建成套的激光雷达探测系统，对一个反射率为50%的待测物进行距离测量，无需复杂的光学结构即可实现厘米级别的准确测距。通过实验比较连续和二值化处理后的混沌信号测距效果，发现二值化混沌信号的测距准确度比连续混沌高一倍以上，对于不同频率下的方波、正弦波和混沌干扰信号具有更强的抗干扰能力，展现出更大的应用优势。

Abstract

In view of the complex structure and high cost of traditional chaotic lidar systems

this paper proposes two transmission schemes using Field Programmable Gate Array (FPGA) and Arbitrary Waveform Generator (AWG)

based on the improved Logistic mapping formula to dynamically generate digital chaotic signals in real time. The digital signal generated on the electrical domain is modulated to a direct-modulated laser to generate a chaotic signal in the optical domain. Then the chaotic optical signal is used as a lidar transmission signal. Therefore

a complete lidar detection system is built on the optical transceiver system. To measure the distance of an object with a reflectivity of 50%

accurate distance measurement at the centimeter level can be achieved without complicated optical structures. We conduct experiments to compare the ranging effects of continuous and binarized chaotic signals. It is found that the ranging accuracy of binarized chaotic signals is at least doubled than that of continuous chaotic signals. For square wave

sine wave and chaotic interference signals at different frequencies

it has stronger anti-interference ability and shows greater application advantages.

关键词

激光雷达数字混沌二值化抗干扰

Keywords

lidardigital chaosbinarizationanti-interference

references

Schwarz B. LIDAR: Mapping the World in 3D[J]. Nature Photonics, 2010, 4(7): 429-430.

Jiang Y, Karpf S, Jalali B. Time-stretch LiDAR as a Spectrally Scanned Time-of-flight Ranging Camera[J]. Nature Photonics, 2020, 14(1): 14-18.

Kim G, Eom J, Park Y. Investigation on the Occurrence of Mutual Interference Between Pulsed Terrestrial LI-DAR Scanners[C]//Geoscience & Remote Sensing Symposium. Milan, Italy: IEEE, 2015: 2151-2154.

Diehm A L, Hammer M, Hebel M, et al. Mitigation of Crosstalk Effects in Multi-LiDAR Configurations[C]//Electro-Optical Remote Sensing. Berlin, Germany: SPIE, 2018: 1079604.

Takeuchi N, Sugimoto N, Baba H, et al. Random Modulation CW Lidar[J]. Applied Optics, 1983, 22(9): 1382.

Myneni K, Barr T A, Reed B R, et al. High-precision Ranging Using a Chaotic Laser Pulse Train[J]. Applied Physics Letters, 2001, 78(11): 1496-1498.

Lin F Y, Liu J M. Chaotic Lidar[J]. IEEE Journal of Selected Topics in Quantum Electronics, 2004, 10(5): 991-997.

Wu W T, Liao Y H, Lin F Y. Noise Suppressions in Synchronized Chaos Lidars[J]. Optics Express, 2010, 18(25): 26155-26162.

Wang B, Wang Y, Kong L, et al. Multi-target Realtime Ranging with Chaotic Laser Radar[J]. Chinese Optics Letters, 2008, 6(11): 868-870.

王冰洁.混沌激光雷达技术研究[D].太原: 太原理工大学, 2012.

Cheng C H, Chen C Y, Chen J D, et al. 3D Pulsed Chaos Lidar System[J]. Optics Express, 2018, 26(9): 12230-12241.

郭凤鸣, 涂立.混沌理论在密码学中的应用[M].北京: 北京理工大学出版社, 2015.

易称福, 陈宇环, 蔡炳煌.四种常见数字混沌扩频序列的特性分析[J].中山大学研究生学刊：自然科学与医学版, 2008, 29(4): 72-80.

舒香.基于脉冲位置调制的激光测距技术研究[D].北京: 中国科学院大学(中国科学院光电技术研究所), 2020.

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