| Heterodyne Doppler velocity measurement of moving targets by mode-locked pulse laser. | |
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MedLine Citation:
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PMID: 22274421 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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In this study, heterodyne detection is adopted to measure the velocity of a target simulated by a rapidly rotating plate by using a mode-locked pulse laser as the resource. The coherent beat frequency of the signal light reflected by target and local oscillation light occurred on the surface of the detector. Then the waveform of beat frequency was processed by filtering to obtain the Doppler frequency shift of the signal light induced by target. With this frequency shift, the velocity of target could be obtained by calculation. Results indicate that the measurement has a high precision. The error on average is within 0.4 m/s. |
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Authors:
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Yan Bai; Deming Ren; Weijiang Zhao; Yanchen Qu; Liming Qian; Zhenlei Chen |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Optics express Volume: 20 ISSN: 1094-4087 ISO Abbreviation: Opt Express Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-01-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101137103 Medline TA: Opt Express Country: United States |
Other Details:
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Languages: eng Pagination: 764-8 Citation Subset: IM |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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