China develops superior underwater GPS system
( 2004-01-11 10:42) (Xinhua)
Chinese scientists have
developed its first high-precision underwater positioning system, which is
believed to be up to the advanced international level.
The underwater global position system (GPS) system can, apart from
internationally prevailing functions of monitoring and dynamic positioning,
pilot and position underwater objects in real time, said Li Deren, a senior
official with the National Remote Sensing Center of China.
The system is a sign of China's accession to the top levels of underwater GPS
The system operates by gathering sound and GPS data from four buoys and a GPS
detector which is transferred to the system, which computes the object's exact
Tests have indicated that in depths less than 45 meters, horizontal position
accuracy is within 5 cm and depth precision 30 cm.