Design of Digital Chaos Anti-jamming Lidar
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...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | zho |
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《光通信研究》编辑部
2021-06-01
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| Series: | Guangtongxin yanjiu |
| Subjects: | |
| Online Access: | http://www.gtxyj.com.cn/thesisDetails#10.13756/j.gtxyj.2021.03.002&lang=zh |
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| author | Hua-zheng GAO Li-yan FENG Ming-hai YU Jian-xun ZHANG Meng-yue SHI Wei-sheng HU Li-lin YI |
| author_facet | Hua-zheng GAO Li-yan FENG Ming-hai YU Jian-xun ZHANG Meng-yue SHI Wei-sheng HU Li-lin YI |
| author_sort | Hua-zheng GAO |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-13T05:36:09Z |
| format | Article |
| id | doaj.art-cf8f53755bf548fc9a0c94166025cf61 |
| institution | Directory Open Access Journal |
| issn | 1005-8788 |
| language | zho |
| last_indexed | 2024-04-13T05:36:09Z |
| publishDate | 2021-06-01 |
| publisher | 《光通信研究》编辑部 |
| record_format | Article |
| series | Guangtongxin yanjiu |
| spelling | doaj.art-cf8f53755bf548fc9a0c94166025cf612022-12-22T03:00:17Zzho《光通信研究》编辑部Guangtongxin yanjiu1005-87882021-06-01000361010.13756/j.gtxyj.2021.03.0021005-8788(2021)03-0006-05Design of Digital Chaos Anti-jamming LidarHua-zheng GAOLi-yan FENGMing-hai YUJian-xun ZHANGMeng-yue SHIWei-sheng HULi-lin YIIn 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.http://www.gtxyj.com.cn/thesisDetails#10.13756/j.gtxyj.2021.03.002&lang=zhlidardigital chaosbinarizationanti-interference |
| spellingShingle | Hua-zheng GAO Li-yan FENG Ming-hai YU Jian-xun ZHANG Meng-yue SHI Wei-sheng HU Li-lin YI Design of Digital Chaos Anti-jamming Lidar Guangtongxin yanjiu lidar digital chaos binarization anti-interference |
| title | Design of Digital Chaos Anti-jamming Lidar |
| title_full | Design of Digital Chaos Anti-jamming Lidar |
| title_fullStr | Design of Digital Chaos Anti-jamming Lidar |
| title_full_unstemmed | Design of Digital Chaos Anti-jamming Lidar |
| title_short | Design of Digital Chaos Anti-jamming Lidar |
| title_sort | design of digital chaos anti jamming lidar |
| topic | lidar digital chaos binarization anti-interference |
| url | http://www.gtxyj.com.cn/thesisDetails#10.13756/j.gtxyj.2021.03.002&lang=zh |
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