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Proceedings Paper

Airborne laser bathymetry experiment
Author(s): Wenqiang Lei; Xiao Zhu; Kecheng Yang; Zaiguang Li
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Paper Abstract

An experimental airborne laser bathymetry system 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 sea depth.

Paper Details

Date Published: 8 September 1999
PDF: 5 pages
Proc. SPIE 3862, 1999 International Conference on Industrial Lasers, (8 September 1999); doi: 10.1117/12.361100
Show Author Affiliations
Wenqiang Lei, Huazhong Univ. of Science and Technology (China)
Xiao Zhu, Huazhong Univ. of Science and Technology (China)
Kecheng Yang, Huazhong Univ. of Science and Technology (China)
Zaiguang Li, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 3862:
1999 International Conference on Industrial Lasers
Fuxi Gan; Horst Weber; Zaiguang Li; Qingming Chen, Editor(s)

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