distress alerting and locating system
遇险信号和确定船位系统
Stranded and in trouble, the crew sent out the S.O.S.
船搁浅遇险后，船员立刻发出求救信号。
Send out a distress signal;the ship is sinking.
船正在下沉，发遇险信号吧。
Have decided to improve the distress and safety of life at seacommunications, and the efficien cy and management of ships,
已决定改进海上遇险和人命安全通信以及船舶的效率和管理，
A Passive Radar Location System Based on CDMA Communication Signals
基于CDMA通信信号的无源雷达定位系统
When the captain found the ship wassinking rapidly, he orderedhis men to send out a distress signal.
船长发现船在迅速下沉时就命令船员发了遇险信号。
" When the captain found the ship was sinking rapidly, he ordered his men to send out a distress signal."
船长发现船在迅速下沉时就命令船员发了遇险信号。
Global maritime distress and safety system(GMDSS)--Technical requirement for marine telecommunication equipment
GB15304-1994全球海上遇险安全系统(GMDSS)船用无线电通信设备技术要求
A Review of Spirit and Opportunity Rover Localization Methods
勇气号和机遇号火星车定位方法评述
An international radiotelephone signal word used by aircraft and ships in distress.
呼救信号遇险的飞机、船只等使用的国际无线电呼救信号
Mathimatical Processing of Weak Signal Detection in Non-coorperate Communication System;
非协作通信系统中弱信号检测的不确定性处理
A passive radar system using GSM signal as the illuminator
利用GSM为信号源的无源定位系统
Cricket System Providing Exact Indoor Location Information;
提供精确室内定位信息的Cricket系统
a device that, on receiving radar signals, transmits coded signals in response to help navigators determine their position.
收到雷达信号后将编码信号传送出去的装置，用以帮助船员确定自身的位置。
ADAPTIVE TRACKING CONTROL OF PERIODIC SIGNALS FOR A CLASS OF UNCERTAIN NONLINEAR SYSTEMS
不确定非线性系统的周期信号自适应跟踪
Study on Passive Radar Location System Using CDMA Communicational Signal as External Illuminator
基于CDMA通信信号的无源雷达定位系统研究
parachute distress rocket signal
降落伞遇险火箭信号
Design for Communication Terminal of Minitype Ship Positioning System Based on ARM;
基于ARM的小型船舶定位系统通信终端设计
