CN101510862A - Method and system for generating ultra-chaos signal - Google Patents

Abstract

The present invention relates to the technical field of secure communication, in particular to a generation method and generation system of a hyperchaotic signal; wherein the hyperchaotic signal generation method includes the following steps: input a sinusoidal signal to a nonlinear circuit capable of generating a chaotic signal, thereby changing the The parameters of the state equation of the nonlinear circuit that can generate chaotic signals, so that at least two of the Lyapunov exponents of the chaotic system are greater than 0; The system also includes a sinusoidal signal generating device, the sinusoidal signal generating device is connected to the signal input end of the nonlinear circuit capable of generating chaotic signals, and the sinusoidal signal generating device outputs a sinusoidal signal to the nonlinear circuit capable of generating chaotic signals circuit, thereby changing the parameters of the state equation of the nonlinear circuit capable of generating chaotic signals, so that at least two of the Lyapunov exponents of the chaotic system are greater than 0.

Description

Hyperchaotic signal generating method and hyperchaotic signal generating system

technical field

The invention relates to the technical field of secure communication, in particular to a method and system for generating hyperchaotic signals.

Background technique

Since the discovery of the first chaotic model by Lorenz in 1963, chaotic dynamics has achieved significant development in the field of nonlinear research.

The reason why chaos can be used for digital information encryption is that the chaotic motion has the following characteristics: 1) The trajectory of the motion is extremely sensitive to the initial value, and the trajectory starting from any two points close to it is unpredictable; 2) The chaotic motion is neither periodic nor convergent. The points on the motion trajectory traverse the entire area; 3) The continuous expansion and folding of the motion trajectory in a limited area makes the system output a phenomenon similar to random noise. But for the ordinary chaotic system, the hyperchaotic system has two or more positive Lyapunov (Lyapunov) exponents, and its properties are more complex. Therefore, the hyperchaotic signal has a wider application prospect as a chaotic encrypted signal.

But now, super-chaos is obtained by adding a state feedback controller containing a potentiometer to the continuous chaotic system, which not only makes the circuit system more complicated, but also adjusts the potentiometer to easily overshoot or undershoot, making the actual obtained There is a certain error between the resistance value and the ideal resistance value.

For example, the Chinese invention patent application publication with the publication number CN25433620Y provides a method for generating digital chaos, which generates a chaotic signal by setting the initial value and equation for calculation, but cannot generate a super chaotic signal, nor can it change the output at any time Signal. And publication number is that the Chinese invention patent application announcement specification of CN101145901A provides a kind of generation method of hyperchaos, but it can only produce hyperchaos in fixed hyperchaos mapping equation, and only changes hyperchaos by setting different initial values The output cannot serve the purpose of controlling the hyperchaotic system.

Contents of the invention

In view of this, in order to solve the above problems, the present invention provides a hyperchaotic signal generation method without adding new state variables.

The object of the present invention is achieved like this, super chaotic signal generating method, comprises the steps: input sinusoidal signal to the non-linear circuit that can produce chaotic signal, thereby change the state equation parameter of described non-linear circuit that can produce chaotic signal, make At least two of the Lyapunov exponents of the chaotic system are greater than 0.

Further, the sinusoidal signal is generated by a single-chip sinusoidal signal generation chip or an RC oscillator circuit;

Further, the sinusoidal signal is input into a nonlinear circuit capable of generating chaotic signals through a potentiometer or a multiplier.

The present invention also provides a hyperchaotic signal generating system, including a nonlinear circuit capable of generating chaotic signals, the hyperchaotic signal generating system also includes a sinusoidal signal generating device, the sinusoidal signal generating device and the chaotic signal generating device The signal input end of the nonlinear circuit is connected, and the sinusoidal signal generating device outputs a sinusoidal signal to the nonlinear circuit that can generate chaotic signals, thereby changing the state equation parameters of the nonlinear circuit that can generate chaotic signals, so that the chaotic system At least 2 of the Lyapunov exponents are greater than 0.

Further, the sinusoidal signal generating device is a single-chip sinusoidal signal generation chip or an RC oscillator circuit;

Further, the sinusoidal signal generating device is connected to the signal input end of the nonlinear circuit capable of generating chaotic signals through a potentiometer or a multiplier;

Further, the nonlinear circuit capable of generating chaotic signals is composed of a parameter setting module, an integration module, a feedback module, a power supply module and an output module; the parameter setting module is used to set the parameters of the circuit system; the parameter setting module of the integration module The module outputs electrical signals for integration processing; the feedback module feeds back the electrical signals output by the integration module to the input of the parameter setting module; the power supply module supplies power to the parameter setting module and the integration module; the output module serves as the output of the system.

The hyperchaotic signal generating method and hyperchaotic signal generating system of the present invention change the state equation parameters of the nonlinear circuit by inputting sinusoidal signals to the nonlinear circuit, thereby changing the Jacobian matrix of the circuit system state equation and making the Lyapunov exponent of the system equation There are two greater than 0, so that the circuit system reaches the state of a super-chaotic system. Since there is no need to add a new state variable, it is simpler to implement and does not increase the complexity of the original system. Compared with the adjustment of the potentiometer in the prior art , it is easier to obtain ideal parameters; in addition, by adjusting the frequency of the input sinusoidal signal, the hyperchaotic signal generating system of the present invention can conveniently switch between chaotic and hyperchaotic states, and between different hyperchaotic states.

Other advantages, objects, and features of the present invention will be set forth in the ensuing description to some extent, and to some extent, will be obvious to those skilled in the art based on the investigation and research below, or can be Learn from the practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

In order to make the purpose of the present invention, technical solutions and advantages clearer, the present invention will be described in further detail below in conjunction with accompanying drawing:

Fig. 1 shows the functional module schematic diagram of hyperchaotic signal generating system of the present invention;

Fig. 2 shows the schematic diagram of the non-linear circuit before adding the sinusoidal signal generating device in Embodiment 1;

Fig. 3 shows the schematic diagram of the non-linear circuit before adding the sinusoidal signal generating device in Embodiment 1;

Fig. 4 shows the Lyapunov exponent spectrum of the hyperchaotic system of embodiment 1;

Fig. 5 shows the Lyapunov exponent spectrum of the hyperchaotic system of embodiment 2;

FIG. 6 shows the Lyapunov exponent spectrum of the hyperchaotic system in Embodiment 3.

Detailed ways

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

The non-linear circuit that can produce chaotic signal of the present embodiment is as shown in Figure 2, and its system equation is:

$\left\{\begin{array}{c}\stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; the\; y</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; x</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; the\; y</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 5</span>}\mathrm{<span\; class="notranslate">\; x</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; xz</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; z</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0.08</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 0.4</span>}\mathrm{<span\; class="notranslate">\; z</span>}\end{array}\right.$

The Lyapunov exponents of this system are: LE1=2.7234, LE2=-0.0622, LE3=-16.6613.

As shown in Fig. 2 and Fig. 3, the nonlinear circuit capable of generating chaotic signals is composed of operational amplifiers, multipliers, resistors, and capacitors, wherein operational amplifiers LM1, LM4, LM7 and their peripheral circuits including multipliers and resistors Together constitute the parameter setting module, operational amplifiers LM2, LM5, LM8 and their peripheral circuits including capacitors and resistors together constitute an integral module, operational amplifiers LM3, LM6, LM9 and their peripheral circuits including capacitors and resistors jointly constitute a feedback module, and the remaining three An operational amplifier constitutes an output module, and the parameter setting module is used to set the parameters of the circuit system; the integral module performs integral processing on the output electric signal of the parameter setting module; the feedback module feeds back the electric signal output by the integral module to the parameter The input terminal of the module is set, and the input terminal of the output module is connected with the output terminal of the feedback module to prevent the peripheral circuits connected to the output terminals U ₁ , U ₂ , and U ₃ from affecting the feedback module. Among them, the operational amplifier can choose LM741, the multiplier can choose AD633JN, connect the sinusoidal signal generating device to the nonlinear circuit input end of the third circuit equation of the circuit, and add a potentiometer in the middle to form a new addition term. The coefficient of the term is determined by the amplitude of the input signal and the potentiometer.

Then the original system equation becomes:

$\left\{\begin{array}{c}\stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; the\; y</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; x</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; the\; y</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 5</span>}\mathrm{<span\; class="notranslate">\; x</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; xz</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; z</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0.08</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 0.4</span>}\mathrm{<span\; class="notranslate">\; z</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; sin</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; \&omega;t</span>}<span\; class="notranslate">\; )</span>\end{array}\right.$

Select a = 1100 as the coefficient of the sine function.

For the convenience of calculation, the system equation is rewritten as a four-dimensional autonomous system:

$\left\{\begin{array}{c}\stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; the\; y</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; x</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; the\; y</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 5</span>}\mathrm{<span\; class="notranslate">\; x</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; xz</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; z</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0.08</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 0.4</span>}\mathrm{<span\; class="notranslate">\; z</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1100</span>}\mathrm{<span\; class="notranslate">\; sin</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; v</span>}<span\; class="notranslate">\; )</span>\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; v</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; w</span>}\end{array}\right.$

Where ω is the angular frequency of the input signal, which satisfies ω=2πf with the frequency of the input signal. Referring to Figure 4, the Lyapunov exponent spectrum of the chaotic system can be seen that changing the frequency of the control signal will change the dynamic characteristics of the system.

When the input angular frequency of the control signal is at ω=4.7, 5.8, 9.2 and 9.8, that is, the frequency of the input signal is at 748Hz, 923Hz, 1.464KHz and 1.599KHz, two of the Lyapunov exponents of the system are greater than 0 at this time; The signal generated in this embodiment is a hyperchaotic signal.

Example 2

The non-linear circuit that can produce chaotic signal of the present embodiment, its system equation is:

$\left\{\begin{array}{c}\stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; the\; y</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; x</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; the\; y</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 5</span>}\mathrm{<span\; class="notranslate">\; x</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; xy</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; z</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 4</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 0.4</span>}\mathrm{<span\; class="notranslate">\; z</span>}\end{array}\right.$

The Lyapunov exponent of this system is: LE1=2.7234, LE2=-0.0622, LE3=-16.6613

Connect the sinusoidal signal generating device to the input end of the nonlinear circuit of the second circuit equation of the circuit, connect the nonlinear circuit through a multiplier, and input the sinusoidal signal and the signal input y to the input end of the nonlinear circuit together to form a new The multiplication item, the coefficient of which is determined by the amplitude of the input signal and the potentiometer.

Then the original system equation becomes:

$\left\{\begin{array}{c}\stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; the\; y</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; x</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; the\; y</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 5</span>}\mathrm{<span\; class="notranslate">\; x</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; xz</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 0.5</span>}\mathrm{<span\; class="notranslate">\; sin</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; v</span>}<span\; class="notranslate">\; )</span>\mathrm{<span\; class="notranslate">\; the\; y</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; z</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 4</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 0.4</span>}\mathrm{<span\; class="notranslate">\; z</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; v</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; \&omega;</span>}\end{array}\right.$

Referring to Figure 5, it can be seen from the Lyapunov exponent spectrum of the chaotic system that when the input frequency of the control signal is ω=0.5, 1.2, 1.4, 1.7, 2.1, 2.2, 2.7~3, 3.4~4.1, 4.3, 4.5~4.7, 5.2 , 5.9, 6.3, 6.6.6.7, 6.9, 7.2, 7.5～7.8, 8, 8.3, 9.2 and 9.8～10, at this time, two of the Lyapunov exponents of the system are greater than 0; chaotic signal.

Example 3

The non-linear circuit that can produce chaotic signal of the present embodiment, its system equation is:

$\left\{\begin{array}{c}\stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; the\; y</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; x</span>}<span\; class="notranslate">\; )</span>\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; the\; y</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 7</span>}\mathrm{<span\; class="notranslate">\; x</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; xz</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 0.2</span>}\mathrm{<span\; class="notranslate">\; w</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; z</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 4</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 0.2</span>}\mathrm{<span\; class="notranslate">\; z</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; w</span>}}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 3</span>}\mathrm{<span\; class="notranslate">\; x</span>}\end{array}\right.$

The Lyapunov exponents of this system are: LE1=0.1827, LE2=0.0756, LE3=0.0756, LE4=-2.3920.

Connect the sinusoidal signal generating device to the input end of the nonlinear circuit of the fourth circuit equation of the circuit, connect the nonlinear circuit through a multiplier, and input the sinusoidal signal and the signal input x to the input end of the nonlinear circuit together to form a new The multiplication item, the coefficient of which is determined by the amplitude of the input signal and the potentiometer.

Then the original system equation becomes:

$\left\{\begin{array}{c}\stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; the\; y</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; x</span>}<span\; class="notranslate">\; )</span>\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; the\; y</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 7</span>}\mathrm{<span\; class="notranslate">\; x</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; xz</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 0.2</span>}\mathrm{<span\; class="notranslate">\; w</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; z</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 4</span>}{\mathrm{<span\; class="notranslate">\; x</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 0.2</span>}\mathrm{<span\; class="notranslate">\; z</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; w</span>}}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 3</span>}\mathrm{<span\; class="notranslate">\; sin</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; v</span>}<span\; class="notranslate">\; )</span>\mathrm{<span\; class="notranslate">\; x</span>}\\ \stackrel{<span\; class="notranslate">\; .</span>}{\mathrm{<span\; class="notranslate">\; v</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; \&omega;</span>}\end{array}\right.$

Referring to Fig. 6, it can be seen from the Lyapunov exponent spectrum of the chaotic system that when the input frequency of the control signal is at ω=4.2～4.7 and 5.2～10, two of the Lyapunov exponents of the system are greater than 0 at this moment; The generated signal is a hyperchaotic signal.

In the above embodiment, the specific circuit structure of the nonlinear circuit capable of generating chaotic signals is usually composed of a parameter setting module, an integral module, a feedback module, a power supply module and an output module; the parameter setting module is used to set the parameters of the circuit system; The integration module performs integral processing on the output electrical signal of the parameter setting module; the feedback module feeds back the electrical signal output by the integration module to the input terminal of the parameter setting module; the power supply module supplies power to the parameter setting module and the integration module; the output The module is used as the output of the system; those skilled in the art can know it according to the circuit equation, so I won’t repeat it here; the sinusoidal signal generator can choose RC oscillator circuit or existing single-chip sinusoidal signal generation chip; the input frequency and The access method can be obtained through calculation or simulation.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (7)

1. hyperchaos signal generating method, it is characterized in that, comprise the steps: to import sinusoidal signal to the nonlinear circuit that can produce chaotic signal, thereby change the described state equation parameter that can produce the nonlinear circuit of chaotic signal, make the lyapunov index of chaos system have 2 at least greater than 0.

2. hyperchaos signal generating method as claimed in claim 1 is characterized in that: described sinusoidal signal is produced by monolithic sinusoidal signal generation chip or RC oscillating circuit.

3. hyperchaos signal generating method as claimed in claim 1 or 2 is characterized in that: described sinusoidal signal can produce the nonlinear circuit of chaotic signal by potentiometer or multiplier input.

4. hyperchaos signal generating system, comprise the nonlinear circuit that can produce chaotic signal, it is characterized in that: described hyperchaos signal generating system also comprises sinusoidal signal generator, described sinusoidal signal generator is connected with the described signal input part that can produce the nonlinear circuit of chaotic signal, described sinusoidal signal generator output sinusoidal signal is to the described nonlinear circuit that can produce chaotic signal, thereby change the described state equation parameter that can produce the nonlinear circuit of chaotic signal, make the lyapunov index of chaos system have 2 at least greater than 0.

5. hyperchaos signal generating system as claimed in claim 4 is characterized in that: described sinusoidal signal generator is monolithic sinusoidal signal generation chip or RC oscillating circuit.

6. as claim 4 or 5 described hyperchaos signal generating systems, it is characterized in that: described sinusoidal signal generator is connected with the signal input part of the nonlinear circuit that can produce chaotic signal by potentiometer or multiplier.

7. hyperchaos signal generating system as claimed in claim 4 is characterized in that: the described nonlinear circuit that can produce chaotic signal is provided with module, integration module, feedback module, supply module and output module by parameter and constitutes; Described parameter is provided with the parameter that module is used to be provided with Circuits System; Described integration module is provided with the module output signal of telecommunication to parameter and carries out integral processing; Described feedback module feeds back to the input that parameter is provided with module with the signal of telecommunication of integration module output; Parameter is provided with module to supply module and integration module is powered; Described output module is as the output of system.

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