Hidden underwater acoustic communication method based on environmental perception

Abstract

The invention discloses a hidden underwater acoustic communication method based on environmental perception, and relates to underwater acoustic communication. Before information to be transmitted is transmitted, detection perception is performed on the environment at first, according to different types of interference and distribution of different spectra, on the basis of the requirement of a system, the transform domain type of the design is specifically determined, spectrum detection perception type and parameter selection is achieved through the underwater acoustic transform-domain communication system, and hidden information is transmitted and received; a primary function of the system is selected; information sequence waveform design protection is performed; underwater acoustic transform-domain communication is performed; information extraction of information signals is performed. The information sequence waveform design is achieved, hidden information synchronous transmission isensured, marine biological signals are ordinarily selected as carrier signals, and information transmission transparency and remote transmission are ensured. Meanwhile, due to hidden underwater acoustic communication based on environmental perception, high-robustness hidden information encryption can be obtained, the stronger attack can be resisted, and the hidden information communication trafficcan be improved at any carrier signal.

Description

technical field [0001] The invention relates to underwater acoustic communication, in particular to a concealed underwater acoustic communication method based on environmental perception. Background technique [0002] Covert underwater acoustic communication is widely used in remote control of underwater military activities and marine security monitoring, and can provide various services for marine environment monitoring, marine resource detection, underwater target detection, and marine scientific research. With the development of ocean development and underwater acoustic communication technology, there are many unsafe factors in underwater acoustic communication, which give the enemy an opportunity to invade from the ocean, which is not conducive to my country's maritime military activities. Under the new military situation, the Covert underwater acoustic communication puts forward higher requirements. [0003] At present, underwater acoustic communications such as militar...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to reduce the signal-to-noise ratio in the existing covert communication, resulting in a short communication distance; the covert information is interfered by the complex environment of the sea area, and it is impossible to determine whether the information content has been tampered with or destroyed; the amount of information embedded in the carrier signal source Low-level problems, to provide a covert underwater acoustic communication method based on environmental perception that can overcome the above-mentioned defects of covert underwater acoustic communication.

Images