Shisong Wu, Yuanyang Li, Tao Lü, Hongkai Chen, Chunhui Yan, Tingfeng Wang, Jin Guo. All-fiber pulsed laser Doppler vibrometer development based on time-domain chopping techniques[J]. Chinese Optics Letters, 2019, 17(5): 051201
- Chinese Optics Letters
- Vol. 17, Issue 5, 051201 (2019)
Fig. 1. Schematic diagram of the all-fiber pulsed LDV system.
Fig. 2. Principle of TDC signal process method: (a) heterodyne mixing signal, (b) matched filtered signal, and (c) time-chopped signal.
Fig. 3. Voice acquisition experiment layout.
Fig. 4. Waveform and spectrum of (a) voice recorded by a microphone and (b) voice demodulated from a file folder at a 25 m standoff.
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Table 1. Transmission Loss of the Optical Path in the System
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