Application of Blue-Green Optical Communication in Networking of Unmanned Undersea Vehicles

Abstract

The clustered development of unmanned undersea vehicles(UUVs) in the future urgently requires high-speed and reliable underwater communication networks. The water channel has a low loss window in visible light, which refers to the blue-green light with a wavelength of 450–570 nm. Underwater optical communication can realize high-speed and high-security transmission of large-capacity data over medium and short distances, which thus has become one of the research hotspots in underwater communication. This paper investigated the current status of UUV networking communication technology based on underwater acoustic communication and wireless optical communication and introduced the research progress and engineering application level of underwater blue-green optical communication. The paper also proposed an underwater local mobile networking scheme based on narrow-beam and long-distance laser communication of laser diodes(LDs) and quasi-omnidirectional optical communication of light emitting diodes(LEDs), which will not only improve the information-sharing ability of UUVs but also provide technical support for the development of an integrated underwater observation and striking network and an underwater terminal penetration system.

Keywords

• unmanned undersea vehicle
• underwater optical communication
• networking
• cluster