FPGA-based digital chaotic anti-interference lidar system
We use the chaotic signal generated by a field-programmable gate array (FPGA) to establish a digital chaotic pulse lidar system, which can achieve mid-range detection and high ranging accuracy without a complex optical structure. We employ the FPGA to generate random sequences with different modulat...
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| Veröffentlicht in: | Optics express 2021-01, Vol.29 (2), p.719-728 |
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| container_title | Optics express |
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| creator | Feng, Liyan Gao, Huazheng Zhang, Jianxun Yu, Minghai Chen, Xianfeng Hu, Weisheng Yi, Lilin |
| description | We use the chaotic signal generated by a field-programmable gate array (FPGA) to establish a digital chaotic pulse lidar system, which can achieve mid-range detection and high ranging accuracy without a complex optical structure. We employ the FPGA to generate random sequences with different modulation rates based on different chaotic iterative equations and initial values. By selecting the initial value and improved logistic equations, we successfully achieve centimeter-level ranging accuracy. Experiments have proved that the digital chaotic lidar system can effectively resist the interference of chaotic signals, square wave signals, and sine wave signals with modulation frequencies of 10 MHz, 100 MHz, 200 MHz, and 1 GHz, showing its strong anti-interference capability. |
| doi_str_mv | 10.1364/OE.414185 |
| format | Article |
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We employ the FPGA to generate random sequences with different modulation rates based on different chaotic iterative equations and initial values. By selecting the initial value and improved logistic equations, we successfully achieve centimeter-level ranging accuracy. Experiments have proved that the digital chaotic lidar system can effectively resist the interference of chaotic signals, square wave signals, and sine wave signals with modulation frequencies of 10 MHz, 100 MHz, 200 MHz, and 1 GHz, showing its strong anti-interference capability.</description><identifier>ISSN: 1094-4087</identifier><identifier>EISSN: 1094-4087</identifier><identifier>DOI: 10.1364/OE.414185</identifier><identifier>PMID: 33726302</identifier><language>eng</language><publisher>United States</publisher><ispartof>Optics express, 2021-01, Vol.29 (2), p.719-728</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c360t-f711a6648e7b7a7751cd50ef33841f1572aac4110aa71aa684a83bc9f23d59643</citedby><cites>FETCH-LOGICAL-c360t-f711a6648e7b7a7751cd50ef33841f1572aac4110aa71aa684a83bc9f23d59643</cites><orcidid>0000-0002-6168-2688</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,860,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33726302$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Feng, Liyan</creatorcontrib><creatorcontrib>Gao, Huazheng</creatorcontrib><creatorcontrib>Zhang, Jianxun</creatorcontrib><creatorcontrib>Yu, Minghai</creatorcontrib><creatorcontrib>Chen, Xianfeng</creatorcontrib><creatorcontrib>Hu, Weisheng</creatorcontrib><creatorcontrib>Yi, Lilin</creatorcontrib><title>FPGA-based digital chaotic anti-interference lidar system</title><title>Optics express</title><addtitle>Opt Express</addtitle><description>We use the chaotic signal generated by a field-programmable gate array (FPGA) to establish a digital chaotic pulse lidar system, which can achieve mid-range detection and high ranging accuracy without a complex optical structure. We employ the FPGA to generate random sequences with different modulation rates based on different chaotic iterative equations and initial values. By selecting the initial value and improved logistic equations, we successfully achieve centimeter-level ranging accuracy. 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| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| title | FPGA-based digital chaotic anti-interference lidar system |
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