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Bionic concealed underwater acoustic communication encoding method and device integrating camouflage and encryption

A technology of underwater acoustic communication and coding method, applied in the field of communication, can solve the problems of artificial modulation, low utilization rate of whale call pulse characteristics, low communication rate, etc., to achieve clear indexing, improve efficiency and richness, communication concealment and The effect of increased effectiveness

Active Publication Date: 2019-09-17
TIANJIN UNIV
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Problems solved by technology

This method only uses the time length of the long call pulse in the cetacean call pulse for communication encoding, and needs to manually modulate the cetacean call pulse, resulting in low utilization rate of the cetacean call pulse feature and low communication rate of this method , low camouflage concealment

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  • Bionic concealed underwater acoustic communication encoding method and device integrating camouflage and encryption

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Embodiment Construction

[0038] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the embodiments of the present invention in detail.

[0039] Different from the traditional method, the embodiment of the present invention designs a bionic hidden underwater acoustic communication coding method integrating camouflage and encryption. This method takes the call of whales as the bionic object, analyzes and deeply grasps the characteristics, combination laws and statistical characteristics of whale calls (strings) from multiple levels and multiple angles; this method is based on the feature diversity of call pulses and builds a tree-based The high-efficiency hierarchical grouping model of call diversity features in the shape structure, analyzes the ability of the number of reciprocal features to carry communication information, builds a tree structure library with a rich number of reciprocal features, and provides rich reciproc...

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Abstract

The invention discloses a bionic concealed underwater acoustic communication encoding method and device integrating camouflage and encryption, and the method comprises the steps: forming a feature hierarchical grouping model and a database of a beep pulse according to the diversity feature and statistical feature of the beep pulse, and further forming an encoding set; according to the coding set, forming a concealed coding calling pulse string conforming to the calling pulse repeatability alternation rule by combining the calling pulse repeatability alternation combination rule and the statistical characteristics; according to the concealed coding sound pulse string, adjusting the time interval between the sound pulse strings by combining the sound pulse time interval combination rule and the statistical characteristics of the sound pulse time interval combination rule, so that the time interval between the sound pulses in the sound pulse strings conforms to the change rule of real whale sound pulses. According to the bionic concealed underwater acoustic communication method, the characteristic diversity of the whale sound pulse can be fully utilized, so that the generated communication sound pulse string can carry more communication information while being close to the real whale sound, and the bionic concealed underwater acoustic communication considering the communication rate and the communication concealment is further realized.

Description

Technical field [0001] The invention relates to the field of communication technology, in particular to a bionic hidden underwater acoustic communication coding method and device integrating camouflage and encryption. Background technique [0002] The highly concealed transmission of information between underwater military platforms is the lifeline of naval operations, and it is also an important manifestation of the comprehensive combat capabilities of navies of various countries. Hidden underwater acoustic communication technology, as the most effective means of concealed information transmission underwater, is used in national defense and military tasks such as submarine-submarine communication, submarine-ship communication, submarine-based communication, maritime remote control telemetry, underwater communication-detection-positioning-navigation integrated design, etc. Playing an increasingly important role in confrontation. However, with the development of underwater acoust...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B13/02G10L19/00
CPCG10L19/00H04B13/02
Inventor 蒋佳佳王宪全段发阶孙中波李春月
Owner TIANJIN UNIV
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