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Laser & Optoelectronics Progress, Volume. 61, Issue 5, 0500007(2024)

Advances in the Remote Laser Speech Signal Detection Technology

Xiaobo Rui1, Xinyue Kong1, Leixia Li2, Zhou Wu3,4、*, Yongbiao Wang3, Yahui Wang3, Lixin Xu1, Yu Zhang1, and Wenxi Zhang3,4
Author Affiliations
  • 1State Key Laboratory of Precision Measurement Technology and Instrument, Tianjin University, Tianjin 300072, China
  • 2Bureau of Major R&D Programs Chinese Academy of Sciences, Beijing 100864, China
  • 3Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
  • 4University of Chinese Academy of Sciences, Beijing 100049, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (13)
    Equations (4)
    References (66)
    Cited By (2)
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    Figures & Tables(13)
    Block diagram of the principle of remote laser speech detection

    Fig. 1. Block diagram of the principle of remote laser speech detection

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    Schematic diagram of non-interferential remote laser vibration detection system

    Fig. 2. Schematic diagram of non-interferential remote laser vibration detection system

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    Remote laser vibration detection method combined photodiode with spatial filter [9]

    Fig. 3. Remote laser vibration detection method combined photodiode with spatial filter [9]

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    Schematic diagram of laser speckle micro-vibration measurement[10]

    Fig. 4. Schematic diagram of laser speckle micro-vibration measurement[10]

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    Remote laser speckle micro-vibration measurement with line-scan CCD[4]

    Fig. 5. Remote laser speckle micro-vibration measurement with line-scan CCD[4]

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    Schematic diagram of remote vibration detection system based on laser interferometry

    Fig. 6. Schematic diagram of remote vibration detection system based on laser interferometry

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    Schematic diagram of Mach-Zehnder interferometer structure LDV[29]

    Fig. 7. Schematic diagram of Mach-Zehnder interferometer structure LDV[29]

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    Schematic diagram of all-fiber heterodyne LDV system [33]

    Fig. 8. Schematic diagram of all-fiber heterodyne LDV system [33]

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    Schematic diagram of partial-fiber LDV system[36]. (a) Electrical unit; (b) optical unit

    Fig. 9. Schematic diagram of partial-fiber LDV system[36]. (a) Electrical unit; (b) optical unit

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    Schematic diagram of frequency-shifted laser self-mixing measurement system[42]

    Fig. 10. Schematic diagram of frequency-shifted laser self-mixing measurement system[42]

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    Block diagram of DNN-based end-to-end speech enhancement method for laser microphone[53]

    Fig. 11. Block diagram of DNN-based end-to-end speech enhancement method for laser microphone[53]

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    Time-frequency characteristics of speckle noise[47]

    Fig. 12. Time-frequency characteristics of speckle noise[47]

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    • Table 1. Main research content of remote laser speech signal detection in recent years

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      Table 1. Main research content of remote laser speech signal detection in recent years

      Research directionResearch contentReference
      Non-interferential remote vibration measurementSingle photodiode detection system optimization［9］
      Area array/line array CCD detection system and signal reconstruction algorithm［4］，［10］，［11‒12］，［16‒18］
      Interferential remote vibration measurementLDV audio detection application［30‒32］，［35］
      LDV system optimization［33‒34］，［36‒37］，［39‒40］
      Laser self-mixing vibration detection［42‒46］
      Detected signal processingBroadband background noise reduction（application of speech enhancement techniques）［2-3］，［51］，［53］，［55‒56］，［58‒60］，［63］
      Impact noise reduction［2］，［47］，［66］
      High frequency compensation［52‒53］
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    Xiaobo Rui, Xinyue Kong, Leixia Li, Zhou Wu, Yongbiao Wang, Yahui Wang, Lixin Xu, Yu Zhang, Wenxi Zhang. Advances in the Remote Laser Speech Signal Detection Technology[J]. Laser & Optoelectronics Progress, 2024, 61(5): 0500007

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    Paper Information

    Category: Reviews

    Received: Jan. 17, 2023

    Accepted: Mar. 1, 2023

    Published Online: Feb. 26, 2024

    The Author Email: Zhou Wu (wz@aircas.ac.cn)

    DOI:10.3788/LOP230527

    CSTR:32186.14.LOP230527

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology