Airborne laser fish finder

被引：0
|
作者：
Zhu, X [1 ]
Li, ZG [1 ]
Huang, HZ [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Natl Lab Laser Technol, Wuhan 430074, Peoples R China
来源：
SOLID STATE LASERS VII | 1998年 / 3265卷
关键词：
laser; sea; fish; detect;
D O I：
10.1117/12.308684
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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 100HZ pulse repetition rate, 2MW peak power, sns pulse width. The green light receiving telescope is transmissive with 1400mm focal length and 200mm aperture. The varying-gain control of PMT and logarithmic amplifier are used to compress the 10(5) dynamic range of received signals. The main features of data realtime processing subsystem are of ?200Ms/s sampling rate, 8 bit resolution, adjacent average treatment of return waveforms with high noise, and pseudo-color display of water depth.
引用
收藏
页码：275 / 278
页数：4
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