27 May 1998 Airborne laser fish finder
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An experimental airborne laser fish finder has been developed and field trial has been conducted. The Q-switched and frequency-doubled Nd:YAG laser output is of 100 HZ pulse repetition rate, 2 MW peak power, 8 ns pulse width. The green light receiving telescope is transmissive with 1400 mm focal length and 200 mm aperture. The varying-gain control of PMT and logarithmic amplifier are used to compress the 105 dynamic range of received signals. The main features of data real-time processing subsystem are of 200 Ms/s sampling rate, 8 bit resolution, adjacent average treatment of return waveforms with high noise, and pseudo-color display of water depth.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiao Zhu, Xiao Zhu, Zaiguang Li, Zaiguang Li, Houzheng Huang, Houzheng Huang, } "Airborne laser fish finder", Proc. SPIE 3265, Solid State Lasers VII, (27 May 1998); doi: 10.1117/12.308684; https://doi.org/10.1117/12.308684

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