© РИА Томск. Элеонора Черная
TOMSK, Mar 23 – RIA Tomsk. The multichannel transmitter
developed at Tomsk State University (TSU) will allow to transmit data under
water ten times faster than other ultrasonic devices, the press service of the
university said on Thursday.
"The student of TSU Yulia Nikulina under the leadership of the associate
professor of radio physical faculty Dmitry Sukhanov creates the multichannel
transmitter of data under water. It can be used for communication and data
exchange between underwater robots and the ship carrier, and also for automatic
detection of coordinates of underwater objects", – is said in the message.
It is specified that feature of information transfer in the sea or the ocean
that salty water doesn't pass a radio wave of high frequencies. For communication
low-frequency range is used, but there is impossible to provide rather wide
strip of data transmission.
© РИА Томск. Павел Стефанский
"Ultrasonic waves extend in water to considerable distances, and they are
used for underwater communication. But now there is only a single-channel mode
of data transmission. We suggest to involve multichannel transfer where the
matrix of radiators and receivers will be used", – Nikulina is quoted in
the message.
It is noted that the multichannel parallelism "will allow to increase data
transmission speed in tens of times". At the first stage installation will
maintain pressure up to 100 atmospheres, that is will be able to work at depth
up to one kilometer and will allow to transfer information at the distance from
10 to 100 meters with minimization of level of noise at frequencies from 50 to
500 kHz.
It is added that it is also offered to apply new type of signals which will
consider that water is non-uniform and constantly is in the movement. The
device will be able to automatically rebuild when moving the source and the
receiver signals. The sealed device can receive power from the ship's network
or underwater robot. The project is supported by the UMNIK program of
Foundation for Assistance to Small Innovative Enterprises.