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A two-way wireless voice security communication system and method based on lorenz chaotic circuit

A wireless voice and secure communication technology, applied in the field of communication, can solve the problems of chaotic characteristic degradation, etc., and achieve the effects of long standby time, portability and small size

Active Publication Date: 2016-07-06
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

Although the former requires relatively few devices to realize, the approximate discretization of the Lorenz system will inevitably lead to the degradation of chaotic characteristics, while the latter avoids this problem due to the use of analog electronic devices

Method used

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  • A two-way wireless voice security communication system and method based on lorenz chaotic circuit
  • A two-way wireless voice security communication system and method based on lorenz chaotic circuit
  • A two-way wireless voice security communication system and method based on lorenz chaotic circuit

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Embodiment Construction

[0056] The specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0057] In this embodiment, the feasibility of the technical solution of the wireless voice security communication system of the present invention is verified through Matlab numerical simulation.

[0058] First, simulate the Lorenz chaotic system circuit to generate chaotic signals;

[0059] The x, y, z state signals in the mathematical expression of the chaotic system are converted into voltage signals suitable for analog circuit implementation, and the wireless chaotic synchronization is realized by using the analog circuit, and finally applied to wireless voice encryption. This embodiment adopts the Lorenz chaotic system, which is realized by circuits.

[0060] The mathematical expression of the Lorenz chaotic system:

[0061] x · ...

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Abstract

Disclosed are a double-path wireless voice secret communication system and method based on a Lorenz chaotic circuit. The system comprises a first wireless voice secret communication system and a second wireless voice secret communication system; each wireless voice secret communication system comprises a wireless voice sending system and a wireless voice receiving system; each wireless voice sending system comprises a Lorenz chaotic driving system circuit, a step-down interface circuit, a wireless sending module and an encrypted circuit; each wireless voice receiving system comprises a Lorenz chaotic response system circuit, a step-up interface circuit, a controller, a wireless receiving module and a decrypting circuit; communications are carried out between the wireless voice sending system and the wireless voice receiving system of the first wireless voice secret communication system, and communications are carried out between the wireless voice sending system and the wireless voice receiving system of the second wireless voice secret communication system. Having characteristics like noise, chaotic signals are concealed; being extremely sensitive to initial conditions, the chaotic signals have long-term unpredictability and extremely strong intercepting and capturing resisting ability.

Description

technical field [0001] The invention belongs to the technical field of communication, in particular to a two-way wireless voice security communication system and method based on a Lorenz chaotic circuit. Background technique [0002] Chaos is a seemingly random irregular motion that occurs in a deterministic system, and it exists widely in many disciplines; as a complex dynamic behavior, chaos phenomenon is found in many fields such as meteorology, chemistry, and information science. Extensive research. The application of chaos in the secure communication system has been widely concerned by everyone. [0003] In 1963, Lorenz improved and simplified the simulation model of the atmospheric system, and obtained a new mathematical model. This mathematical model shows an extreme dependence on the initial conditions and the system can find infinitely many solutions. Later, in order to commemorate this important discovery of Professor Lorenz, this system was named Lorenz chaotic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/02
Inventor 任涛里永亮陈曦郑旭超赵亚飞刘冬美杨燕飞温建新沈道清毕宁军张启超李彩娟
Owner NORTHEASTERN UNIV LIAONING
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