High-Precision Joint Ranging Method Based on Pseudo-Random Code and Single-Tone Signal
In this paper, a laser joint ranging method, which integrates the pseudo-random code with the single-tone signal, is proposed for realizing high accuracy and precision. The single-tone signal utilizes a phase-shift method for high-precision ranging, while the pseudo-random code is employed to solve...
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| Format: | Article |
| Language: | English |
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2025-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10945597/ |
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| author | Chaoyang Li Zhiyong Lu Jianfeng Sun Fei Yang Weibiao Chen |
| author_facet | Chaoyang Li Zhiyong Lu Jianfeng Sun Fei Yang Weibiao Chen |
| author_sort | Chaoyang Li |
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| description | In this paper, a laser joint ranging method, which integrates the pseudo-random code with the single-tone signal, is proposed for realizing high accuracy and precision. The single-tone signal utilizes a phase-shift method for high-precision ranging, while the pseudo-random code is employed to solve the distance ambiguity problem in the phase-shift method. The merging of the pseudo-random code with the single-tone signal in the digital domain and the data processing in the digital domain achieve simultaneous modulation and simultaneous ranging, which ensures the complete synchronization of the two signals during both transmission and processing. Furthermore, the pseudo-random code is band-limited, which ensures that the pseudo-random code signal and the single-tone signal do not overlap spectrally, thus preventing interference between them. The experimental results indicate that the ranging accuracy is 59.84 <inline-formula><tex-math notation="LaTeX">${\bf \mu m}$</tex-math></inline-formula> and the ranging precision is 14.72 <inline-formula><tex-math notation="LaTeX">${\bf \mu m}$</tex-math></inline-formula>. Finally, the article analyzes the selection principles of single-tone signal and pseudo-random code, providing a reference for the selection of single-tone signal and pseudo-random code in this joint ranging method. |
| format | Article |
| id | doaj-art-2999589bd40f42acb1ada02ceeb57b66 |
| institution | OA Journals |
| issn | 1943-0655 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-2999589bd40f42acb1ada02ceeb57b662025-08-20T02:15:51ZengIEEEIEEE Photonics Journal1943-06552025-01-011721510.1109/JPHOT.2025.355613510945597High-Precision Joint Ranging Method Based on Pseudo-Random Code and Single-Tone SignalChaoyang Li0https://orcid.org/0009-0002-5725-2420Zhiyong Lu1Jianfeng Sun2https://orcid.org/0009-0009-1876-3317Fei Yang3https://orcid.org/0000-0001-8369-3962Weibiao Chen4https://orcid.org/0000-0001-7151-6926Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, ChinaKey Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, ChinaShanghai Satellite Network Research Institute Company Limited, Shanghai, ChinaKey Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, ChinaKey Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, ChinaIn this paper, a laser joint ranging method, which integrates the pseudo-random code with the single-tone signal, is proposed for realizing high accuracy and precision. The single-tone signal utilizes a phase-shift method for high-precision ranging, while the pseudo-random code is employed to solve the distance ambiguity problem in the phase-shift method. The merging of the pseudo-random code with the single-tone signal in the digital domain and the data processing in the digital domain achieve simultaneous modulation and simultaneous ranging, which ensures the complete synchronization of the two signals during both transmission and processing. Furthermore, the pseudo-random code is band-limited, which ensures that the pseudo-random code signal and the single-tone signal do not overlap spectrally, thus preventing interference between them. The experimental results indicate that the ranging accuracy is 59.84 <inline-formula><tex-math notation="LaTeX">${\bf \mu m}$</tex-math></inline-formula> and the ranging precision is 14.72 <inline-formula><tex-math notation="LaTeX">${\bf \mu m}$</tex-math></inline-formula>. Finally, the article analyzes the selection principles of single-tone signal and pseudo-random code, providing a reference for the selection of single-tone signal and pseudo-random code in this joint ranging method.https://ieeexplore.ieee.org/document/10945597/Laser rangingpseudo-random coderange ambiguitysingle-tone signal |
| spellingShingle | Chaoyang Li Zhiyong Lu Jianfeng Sun Fei Yang Weibiao Chen High-Precision Joint Ranging Method Based on Pseudo-Random Code and Single-Tone Signal IEEE Photonics Journal Laser ranging pseudo-random code range ambiguity single-tone signal |
| title | High-Precision Joint Ranging Method Based on Pseudo-Random Code and Single-Tone Signal |
| title_full | High-Precision Joint Ranging Method Based on Pseudo-Random Code and Single-Tone Signal |
| title_fullStr | High-Precision Joint Ranging Method Based on Pseudo-Random Code and Single-Tone Signal |
| title_full_unstemmed | High-Precision Joint Ranging Method Based on Pseudo-Random Code and Single-Tone Signal |
| title_short | High-Precision Joint Ranging Method Based on Pseudo-Random Code and Single-Tone Signal |
| title_sort | high precision joint ranging method based on pseudo random code and single tone signal |
| topic | Laser ranging pseudo-random code range ambiguity single-tone signal |
| url | https://ieeexplore.ieee.org/document/10945597/ |
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