Japan's Marine Research and Development Organization recently developed a large-capacity underwater optical communication technology that can achieve two-way communication at a distance of 100 meters or more at a transmission rate of 20 megabits per second (Mbps), and is expected to be widely used in maritime surveys and military fields.
According to Japan's Nippon Kaiji Kyodo News Agency, the current waterborne wireless communications mainly rely on acoustic communication technology, which transmits at a rate of about 10 kilobits per second (kbps) and can not realize large-capacity wireless data transmission. A team of Japan's Marine Research and Development Institutes developed underwater optical communications equipment to test areas in the sea between 700 and 800 meters deep and successfully achieve 120-meter bidirectional optical communications at 20 Mbps transmission speeds, The speed of real-time transmission of video images.
Researchers say the technology is expected to be used in the future for underwater operations such as undersea exploration, communications between undersea observatories and vessels and unmanned aerial vehicles, and military areas such as submarine communications.
Japan Marine Research and Development Agency is Japan's national research institute, leading Japan's marine research and resource survey, with deep-sea exploration vessels such as Deep Sea 6500 and Earth. The agency received the Japanese Ministry of Defense funding to carry out the above-mentioned technology research and development.
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