Bionic lateral line communication system based on propeller wake flow field perception

Abstract

The invention provides a bionic lateral line communication system based on propeller wake flow field perception, belongs to the technical field of underwater communication, and realizes networking communication of underwater robots by using a flow field disturbance signal generated by interaction of a propeller and a flow field as a communication signal according to a lateral line perception mechanism of fishes. The flow field disturbance of the main propeller is used as a carrier signal to increase the transmission distance and intensity, the disturbance of the modulation propeller is used as a modulation signal to perform information transmission, the signal modulation and demodulation are realized by adopting the neural network model and the nonlinear filtering model, the environmental adaptability is better, and the working efficiency and accuracy of the detection system are improved. The method has the beneficial effects that a signal source sensed by bionic navigation is a flow field medium fluctuation signal, and a novel thought and a practical detection sensing means can be provided for an underwater hidden detection and guidance tracking technology.

Description

technical field [0001] The invention relates to the technical field of underwater communication, in particular to a bionic sideline communication system based on propeller wake field perception. Background technique [0002] In the future, underwater operations will change the traditional way of submarine warfare and gradually shift to unmanned, intelligent and clustered methods. [0003] At present, acoustic and optical systems are the main means of information interaction for underwater equipment such as UUV. Among them, optical perception has limited imaging quality and is affected by water turbidity, which limits its application in underwater environments. Although the acoustic system can perform effective underwater perception, in a complex environment or when conducting group operations, the sound waves will produce "ghosting" problems caused by multi-path effects, and multiple signals will affect each other during group operations, making the It cannot accurately sen...

AI Technical Summary

Problems solved by technology

[0003] At present, acoustic and optical systems are the main means of information interaction for underwater equipment such as UUV. Among them, optical perception has limited imaging quality and is affected by water turbidity, which limits its application in underwater environments.

Although the acoustic system can perform effective underwater perception, in a complex environment or when conducting group operations, the sound waves will produce "ghosting" problems caused by multi-path effects, and multiple signals will affect each other during group operations, making the Its inability to accurately sense its surroundings

In a nutshell, the existing optical and acoustic underwater information perception technologies are difficult to provide high-sensitivity and high-precision near-field perception information for UUV target guidance in some cases, which has also become a technical bottleneck restricting the application and development of underwater guidance and communication.

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