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.
"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.