研究人员正分享他们的实时数据去为鲸鱼定位，通过卫星与油轮船长从浮标传送数据，船长能放慢船速或改变航道来避开鲸鱼。
The researchers are sharing their real-time data on whale locations, transmitted from the buoys via satellite, with tanker captains, who can then slow down their ships or alter course to avoid whales.
根据定位原理，除了测量目标的声学信息外，必须得到浮标的位置信息。
According to position principle, it is necessary to get buoys' location besides targets' acoustic information.
差分gps水下立体定位系统包括GPS差分基准站、GPS浮标、水下收发机、船基控制中心四部分。
Underwater GPS positioning system includes four parts which are GPS differential reference station, GPS buoy subsystem, underwater pinger, ship-based data processing and control center.
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