|
|
|
| HOME > NEWS > ENGLISH NEWS > General |
|
| Submarine Wireless Interactive Communication to be Realized in 2009 |
|
Wireless communication underwater at the speed currently available on mobile handsets is likely to become a reality around in 2009.
Ministry of Maritime Affairs and Fisheries (MOMAF) disclosed on August 8 that the Korea Ocean Research & Development Institute (KORDI)’s team led by Dr. Lim Yong-gon conducted a submarine wireless communication test under the sea of the Odong island near Yeosu City, South Jeolla Province.
The test was exchanging images at 10,000 bps (speed available on mobile handsets on ground) via a wireless transmitter and a receiver, both installed in two separate ships that had departed from Yeosu and were sailing at a ten-kilometer distance.
The KORDI team had succeeded a test of submarine wireless one-way communication before: at 10,000 bps at a 4.2-kilometer distance in 2005 and at a 7.4-kilometer distance in 2006, while this is the first time to succeed a submarine wireless two-way communication test.
Generally, sound waves are used for wireless communication underwater instead of radio waves due to radio waves’ characteristics that make transmission difficult. Yet there are still ample technical difficulties in realizing communication underwater, even with sound waves: sound waves run much slower than radio waves at 1.5 kilometers per second; its frequency bands are restricted; and it reflects from the surface and the bottom of the sea, KORDI explained.
Dr. Lim said, “We will come up with dispersed submarine sound communication network system by 2009, which links the overland communication network with the dispersed submarine sound communication network protocol, enabling an underwater communications device to establish the communication network on its own.”
[Sun-young Park / KHS]
[ⓒ Maeil Business Newspaper & mk.co.kr, All rights reserved]
|
|
|
 |
|
|
 Fri, July 30, 2010 |
|
| Thur, July 29, 2010 |
|
| Wed, July 28, 2010 |
|
| Tue, July 27, 2010 |
|
| Mon, July 26, 2010 |
|
| Fri, July 23, 2010 |
|
| Thur, July 22, 2010 |
|
|
|
|
|
 |
|
