地面回波滤除
ground clutter suppression
地面目标测向
direction-finding of the acoustic ground target
地面目标识别
ground objects identification
GOI Ground Object Identification
地面数据采集系统
GDAS Ground Data Acquisition System
地面数据处理系统
surface data handling system
ground data handling system
and Ground data processing system
GDHS Ground Data Handling System
地面数据处理站
data processing ground station
地物识别地面目标识别
ground objects identification
海面回波波谱
Spectra of ocean return signal