Hidden information transmission method and transmission system based on biological sound

A technology of concealing information and transmission methods, which is applied in the field of bioacoustic communication, can solve the problems that information security technology cannot effectively conceal information, and achieve the effects of strong anti-interference ability, strong concealment, and improved reliability

Active Publication Date: 2020-05-19
JIANGSU UNIV OF SCI & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the information age, traditional information security technology can no longer effectively hide information, and encryption technology is more likely to attract the attention of attackers

Method used

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  • Hidden information transmission method and transmission system based on biological sound
  • Hidden information transmission method and transmission system based on biological sound
  • Hidden information transmission method and transmission system based on biological sound

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Embodiment Construction

[0038] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0039] Such as figure 1 As shown, this embodiment takes sending the binary code stream [1 0 1 0 0 1] as an example to illustrate the concealed information transmission method disclosed in the present invention, including:

[0040] Step 1. The covert information sending end collects the biological call pulse signal x(t) with a duration of T, extracts the envelope from the collected signal, and obtains the biological call envelope signal e s (t); The number of biological sounds contained in the time T is greater than or equal to the number of code elements in the binary code stream to be sent;

[0041] What this embodiment adopts is the sound of birds, such as figure 2 As shown, 12 bird calls have been collected, which is greater than the number of symbols to be sent. 6, each bird call is a high-frequency pulse signal, and there is a period of...

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PUM

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Abstract

The invention discloses a concealed information transmission method and transmission system based on biological sound, and the method comprises the steps: 1, enabling a transmitting end to collect a biological sound pulse signal x(t), and extracting an envelope es(t); 2, acquiring the time range of each biological sound pulse in es(t); 3, when an i-th code element to be sent is B1, embedding an identification signal into an i-th biological sound pulse signal xi(t) in the x(t), and when the i-th code element to be sent is B2, performing no processing on the xi(t) signal; 4, enabling the transmitting end to send out the processed biological sound signal; 5, extracting an enveloper(t) from a received biological sound signal y(t) by the receiving end, and obtaining the time range of each biological sound pulse; 6, judging whether embedded information exists or not for each biological sound pulse yj(t) in the y(t): if the embedded information exists, determining that the j-th code element sent by the sending end is B1. According to the method, the requirement for transmitting the hidden information in a specific occasion can be met, and the probability that the secret information is intercepted and captured is reduced through the hidden communication behavior.

Description

technical field [0001] The invention belongs to the technical field of biological acoustic communication, and in particular relates to a method and a system for transmitting concealed information by using biological sounds. Background technique [0002] With the rapid development of the information age, traditional information security technology can no longer effectively conceal information, and encryption technology is more likely to attract the attention of attackers. Information hiding technology is to hide hidden information in approximately normal data streams, thereby hiding the existence of information transmission channels. Compared with traditional encryption technology, it has an extra layer of means to confuse attackers and is more secure. Contents of the invention [0003] Purpose of the invention: The present invention aims to provide a method for transmitting concealed information using biological sounds, which can meet the needs of transmitting concealed in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B11/00G10L19/018
CPCG10L19/018H04B11/00
Inventor 何呈邵硕芮超群朱柏宇戴跃伟
Owner JIANGSU UNIV OF SCI & TECH
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