摘要
对激光海洋测深信号特性进行了分析，采用变增益法预处理机载激光测深回波信号，可以压缩水面激光反射信号的光通量与水底目标返回信号光通量的动态范围，实验结果使其动态压缩范围达１０￣３～１０￣４量级，满足机载蓝绿激光测深的要求。
The characteristics of signals reflected for laser bathometry have been analyzed.Bv means ofpreprocessing signals reflected from the sea surface and the sea bottom by gain control,it is realizedthat the dynamic range gain is compressed to 10￣3～10￣4 orders in the PMT GDB-49.The result meetsthe need for airborne laser bathometry.
出处
《光子学报》
EI
CAS
CSCD
1996年第9期788-792,共5页
Acta Photonica Sinica
关键词
预处理回波信号
激光测深
海洋测深
Preprocessing of echo signals
Laser bathometry
Gain control
