A new milestone has been ‘unlocked’ by a group of Chinese researchers. As they explain, they have recently discovered the way in which to transmit acoustic data between submarines without errors and a distance of 600 kilometers. This step is a fundamental step to improve long -range underwater messaging, thanks to the use of tip technology.
Thus, they point out that in 2010, thanks to an experiment from the US Navy, it could be demonstrated that underwater communication was possible up to a distance of 550 kilometers, so that 15 more years have been necessary until it can increase that sum by 50 km.
But this does not mean that communication is perfect. In fact, that remains a capital challenge for any researcher or scientist, and this constitutes an important barrier when carrying out missions of enormous importance. And, as some experts, those failures, explain, for nimios that seem can be decisive if there is talk of a critical operation such as the activation of inactive submarine drones or the coordination of precision attacks.
On the other hand, another great obstacle that faces underwater communication has to do with the sea water itself, since all the sound with tangled echoes is dispersed, reaching the signals of sources in motion. To deal with this, Professor He Chengbing and his team from the Northwest Polytechnic University in Shaanxi, China, developed a self -adjustment system capable of identifying signal groups in noisy underwater environments.
In addition, they created an innovative algorithm that will allow them to convert turbulent channels into “acoustic snapshots” quasiestatic. Thus, the Chinese hydrophones system allows to obtain deep water data without errors, which were already tested in 2021. The system has hydrophones of eight elements coupled to a buoy and coded QPSK signs.
