Relay time reversal underwater acoustic communication apparatus for multi-hop underwater acoustic network

Abstract

The invention discloses a relay time reversal underwater acoustic communication apparatus for a multi-hop underwater acoustic network, a transmitting part is provided with a synchronous signal module,a control word head, a spread spectrum modulation module, an information code element, a data modulation module, an information frame time reversal module, a framing module, a power amplifier and a transmitting transducer, wherein the synchronous signal module is connected with the framing module, the control word head is connected with the framing module through the spread spectrum modulation module, the information code element is connected with the framing module via the data modulation module, the information frame time reversal module is connected with the framing module, and the framingmodule is connected with the transmitting transducer via the power amplifier; and a receiving part is provided with a receiving transducer, a front module, an analog-to-digital converter, a synchronization module, a frame disassembling module, a control word head decoding module, a data decoder and an information frame time reversal module, wherein the receiving transducer is connected with the analog-to-digital converter via the front module, the analog-to-digital converter is respectively connected with the synchronization module and the frame disassembling module, the synchronization module is connected with the frame disassembling module, the frame disassembling module is connected with the control word head decoding module, the data decoder and the information time reversal module, and the control word head decoding module is connected with the data decoder.

Description

technical field [0001] The invention relates to an underwater acoustic communicator, in particular to a relay time-reversal underwater acoustic communicator for a multi-diving underwater acoustic network. Background technique [0002] With the rapid increase in demand for long-term, real-time, and large-scale ocean information acquisition and transmission in areas such as ocean exploration, resource development, environmental monitoring, and national defense security, underwater acoustic communication and networking technology has become a hot spot and frontier of ocean high technology. The characteristics of the underwater acoustic channel, such as strong multipath interference, strong time variation, strong background noise, and long delay, pose great challenges to the design of high-performance underwater acoustic communication and network systems. [0003] Considering the technical difficulties caused by the direct realization of long-distance underwater acoustic communi...

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Problems solved by technology

[0010] The purpose of the present invention is to solve the problem that the existing underwater acoustic network communication machine does not use the redundancy in the multi-hop relay to realize the time reversal of the relay, and to provide a multi-hop communication device that can reduce the amount of calculation and improve performance. Relay Time Reversal Underwater Acoustic Communicator for Diving Acoustic Network

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