CN110943822A - Multi-scroll chaotic signal generator based on sinusoidal control - Google Patents
Multi-scroll chaotic signal generator based on sinusoidal control Download PDFInfo
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Abstract
The invention discloses a multi-scroll chaotic signal generator based on sinusoidal control, which comprises: basic chaotic signal generating circuit N1, sine function generating circuit N2, sequence generator N3 for generating switching control function, node f and multiplier MUL4(ii) a A node x of the basic chaotic signal generating circuit N1 is connected with the input end of the sine function generating circuit N2; the node z of the basic chaotic signal generating circuit N1 is connected with the input end of a sequence generator N3, and the output end of the sine function generating circuit N2 is connected with a multiplier MUL4Is connected to the first input of the sequence generator N3, the output of the sequence generator N3 being connected to the multiplier MUL4Is connected to the second input terminal of the multiplier MUL, the multiplier MUL4Is connected to the input terminal of the basic chaotic signal generating circuit N1 through a node f. The invention is mainly used in the technical field of chaotic communication.
Description
Technical Field
The invention relates to the technical field of chaotic communication, in particular to a multi-scroll chaotic signal generator based on sinusoidal control.
Background
Since the first chaotic system was discovered by Lorenz in the 60's of the 20 th century, the chaotic system has attracted wide attention in the fields of image encryption, information security and the like because of its characteristics of strong sensitivity, dependence, unpredictability and the like on initial conditions and parameters. The chaos is a deterministic random-like process in a nonlinear power system and has ergodicity, mixing and exponential divergence. The low-dimensional chaotic system has the problems of insufficient key space, low complexity of chaotic sequences, poor anti-deciphering capacity of the system, low safety and the like due to low system dimension.
Disclosure of Invention
The present invention is directed to a sinusoidal control based multi-scroll chaotic signal generator, which solves one or more of the problems of the prior art and provides at least one of the advantages.
The solution of the invention for solving the technical problem is as follows: a multi-scroll chaotic signal generator based on sinusoidal control, comprising: basic chaotic signal generating circuit N1, sine function generating circuit N2, sequence generator N3 for generating switching control function, node f and multiplier MUL4(ii) a A node x of the basic chaotic signal generating circuit N1 is connected with the input end of the sine function generating circuit N2; the node z of the basic chaotic signal generating circuit N1 is connected with the input end of a sequence generator N3, and the output end of the sine function generating circuit N2 is connected with a multiplier MUL4Is connected to the first input of the sequence generator N3, the output of the sequence generator N3 being connected to the multiplier MUL4Is connected to the second input terminal of the multiplier MUL, the multiplier MUL4Is connected to the input terminal of the basic chaotic signal generating circuit N1 through a node f.
Further, the sine function generating circuit N2 includes: operational amplifier OP10Operational amplifier OP11Resistance R20Resistance R21Resistance R22Resistance R23And a sine function generating chip configured to have an amplitude ten times larger;
the resistor R20Is connected to node x, the resistor R20Respectively with a resistor R21Left end, operational amplifier OP10Is connected to the negative input terminal of the resistor R21Respectively with an operational amplifier OP10Output terminal of (1), resistor R22Is connected to the left end of the resistor R22Respectively with a resistor R23Left end, operational amplifier OP11Is negativeInput terminal connection, the resistor R23Respectively with an operational amplifier OP11Is connected with the input end of the sine function generating chip, and the output end of the sine function generating chip is connected with the multiplier MUL4Is connected to the first input terminal.
Further, the basic chaotic signal generating circuit N1 includes: operational amplifier OP1Operational amplifier OP2Operational amplifier OP3Operational amplifier OP4Operational amplifier OP5Operational amplifier OP6Operational amplifier OP7Operational amplifier OP8Operational amplifier OP9Resistance R1Resistance R2Resistance R3Resistance R4Resistance R5Resistance R6Resistance R7Resistance R8Resistance R9Resistance R10Resistance R11Resistance R12Resistance R13Resistance R14Resistance R15Resistance R16Resistance R17Resistance R18Resistance R19Capacitor C1Capacitor C2Node x, node-x, node y, node-y, node z, node-z and multiplier MUL1；
The operational amplifier OP1Respectively with the resistor R1Right end of (1), resistance R2Right end of (1), resistance R3Is connected to the left end of the resistor R3Respectively with an operational amplifier OP1Output terminal of (1), resistor R4Is connected to the left end of the resistor R4Respectively with an operational amplifier OP2Negative input terminal of (1), capacitor C1Is connected to the left end of the capacitor C1Is respectively connected with the node-x and the resistor R5Is connected to the left end of the resistor R5Respectively with an operational amplifier OP3Negative input terminal of (3), resistor R6Is connected to the left end of the resistor R6Respectively with an operational amplifier OP3Is connected to node x, the resistor R1Is connected to node-y, the resistor R2At the left end ofNode-z connected;
the operational amplifier OP4Respectively with the resistor R7Right end of (1), resistance R8Right end of (1), resistance R9Is connected to the left end of the resistor R9Respectively with an operational amplifier OP4Output terminal of (1), resistor R10Is connected to the left end of the resistor R10Respectively with an operational amplifier OP5Negative input terminal of (1), capacitor C2Is connected to the left end of the capacitor C2With node-y and resistor R, respectively11Is connected to the left end of the resistor R11Respectively with an operational amplifier OP6Negative input terminal of (3), resistor R12Is connected to the left end of the resistor R12Respectively with an operational amplifier OP6Is connected to node y, the resistor R7Is connected to node-z, the resistor R8The left end of (a) is connected with a node y;
the operational amplifier OP7Respectively with the resistor R13Right end of (1), resistance R14Right end of (1), resistance R15Right end of (1), resistance R16Is connected to the left end of the resistor R16Respectively with an operational amplifier OP7Output terminal of (1), resistor R17Is connected to the left end of the resistor R17Respectively with an operational amplifier OP8Negative input terminal of (1), capacitor C3Is connected to the left end of the capacitor C3Is respectively connected with the node-z and the resistor R18Is connected to the left end of the resistor R18Respectively with an operational amplifier OP9Negative input terminal of (3), resistor R19Is connected to the left end of the resistor R19Respectively with an operational amplifier OP9Is connected to node z, the resistor R13Is connected with a node y, and the resistor R14Left end of and multiplier MUL1Is connected to the output of the multiplier MUL, the multiplier MUL1Is connected to node-y, said multiplier MUL1Is connected to node z, said resistor R15The left end of (a) is connected with a node f;
the operational amplifier OP1Positive input terminal of, operational amplifier OP2Positive input terminal of, operational amplifier OP3Positive input terminal of, operational amplifier OP4Positive input terminal of, operational amplifier OP5Positive input terminal of, operational amplifier OP6Positive input terminal of, operational amplifier OP7Positive input terminal of, operational amplifier OP8And the operational amplifier OP9The positive input ends of which are respectively connected to the ground.
Further, the sequencer N3 includes: operational amplifier OP16Operational amplifier OP17Operational amplifier OP18Operational amplifier OP19Operational amplifier OP20Resistance R36Resistance R37Resistance R38Resistance R39Resistance R40Resistance R41Resistance R42Resistance R43Node U1And node U2；
The operational amplifier OP16Is connected to node z, said operational amplifier OP16Positive input end and node U of1Connected, said operational amplifier OP16Output terminal and resistor R36Is connected to the left end of the resistor R36Respectively with a resistor R37Left end, operational amplifier OP17Is connected to the negative input terminal of the resistor R37Respectively with an operational amplifier OP17Output terminal of (1), resistor R38Is connected to the left end of the resistor R38Respectively with a resistor R39Left end, operational amplifier OP20Is connected to the negative input terminal of the resistor R39Respectively with an operational amplifier OP20Output terminal of (2), multiplier MUL4Is connected to the second input terminal of the first,
the operational amplifier OP18Is connected to node z, said operational amplifier OP18Positive input end and node U of2Connected, said operational amplifier OP18Output terminal and resistor R40Is connected to the left end of the resistor R40Respectively with a resistor R41Left end, operational amplifier OP19Is connected to the negative input terminal of the resistor R41Respectively with an operational amplifier OP19Output terminal of (1), resistor R42Is connected to the left end of the resistor R42Respectively with a resistor R43Upper end, operational amplifier OP20Are connected with the positive input end of the main body;
the operational amplifier OP17Positive input terminal of, operational amplifier OP19Positive input terminal and resistor R43Are respectively connected to the ground.
Further, the resistors adopted by the basic chaotic signal generating circuit N1, the sine function generating circuit N2 and the sequencer N3 are all precision adjustable resistors or precision adjustable potentiometers.
Further, the model of the sine function generating chip is AD 639.
The invention has the beneficial effects that: the invention can generate more scrolls, has higher complexity of the chaotic sequence, larger key space and stronger system anti-deciphering capacity, and has better potential application value in the fields of secret communication, chaotic control and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the described drawings are only a part of the embodiments of the invention, not all embodiments, and that a person skilled in the art will be able to derive other designs and drawings from these drawings without the exercise of inventive effort.
FIG. 1 is a schematic diagram of the circuit connections between the sine function generating circuit N2 and the sequencer N3;
fig. 2 is a circuit connection schematic diagram of the basic chaotic signal generating circuit N1.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as up, down, front, rear, left, right, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the invention, if words such as "a number" or the like are used, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as not including the number, and more than, less than, more than, etc. are understood as including the number.
In the description of the present invention, unless otherwise explicitly defined, terms such as setup, installation, connection, and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention in combination with the detailed contents of the technical solutions.
Embodiment 1, referring to fig. 1 and 2, a sinusoidal control based multi-scroll chaotic signal generator includes: basic chaotic signal generating circuit N1, sine function generating circuit N2, sequence generator N3 for generating switching control function, node f and multiplier MUL4。
Wherein the basic chaotic signal generating circuit N1 includes: operational amplifier OP1Operational amplifier OP2Operational amplifier OP3Operational amplifier OP4Operational amplifier OP5Operational amplifier OP6Operational amplifier OP7Operational amplifier OP8Operational amplifier OP9Resistance R1Resistance R2Resistance R3Resistance R4Resistance R5Resistance R6Resistance R7Resistance R8Electricity, electricityResistance R9Resistance R10Resistance R11Resistance R12Resistance R13Resistance R14Resistance R15Resistance R16Resistance R17Resistance R18Resistance R19Capacitor C1Capacitor C2Node x, node-x, node y, node-y, node z, node-z and multiplier MUL1(ii) a The operational amplifier OP1Respectively with the resistor R1Right end of (1), resistance R2Right end of (1), resistance R3Is connected to the left end of the resistor R3Respectively with an operational amplifier OP1Output terminal of (1), resistor R4Is connected to the left end of the resistor R4Respectively with an operational amplifier OP2Negative input terminal of (1), capacitor C1Is connected to the left end of the capacitor C1Is respectively connected with the node-x and the resistor R5Is connected to the left end of the resistor R5Respectively with an operational amplifier OP3Negative input terminal of (3), resistor R6Is connected to the left end of the resistor R6Respectively with an operational amplifier OP3Is connected to node x, the resistor R1Is connected to node-y, the resistor R2Is connected to node-z; the operational amplifier OP4Respectively with the resistor R7Right end of (1), resistance R8Right end of (1), resistance R9Is connected to the left end of the resistor R9Respectively with an operational amplifier OP4Output terminal of (1), resistor R10Is connected to the left end of the resistor R10Respectively with an operational amplifier OP5Negative input terminal of (1), capacitor C2Is connected to the left end of the capacitor C2With node-y and resistor R, respectively11Is connected to the left end of the resistor R11Respectively with an operational amplifier OP6Negative input terminal of (3), resistor R12Is connected to the left end of the resistor R12Respectively with an operational amplifier OP6Is connected to node y, the resistor R7Is connected to node-z, the resistor R8At the left end ofConnecting the nodes y; the operational amplifier OP7Respectively with the resistor R13Right end of (1), resistance R14Right end of (1), resistance R15Right end of (1), resistance R16Is connected to the left end of the resistor R16Respectively with an operational amplifier OP7Output terminal of (1), resistor R17Is connected to the left end of the resistor R17Respectively with an operational amplifier OP8Negative input terminal of (1), capacitor C3Is connected to the left end of the capacitor C3Is respectively connected with the node-z and the resistor R18Is connected to the left end of the resistor R18Respectively with an operational amplifier OP9Negative input terminal of (3), resistor R19Is connected to the left end of the resistor R19Respectively with an operational amplifier OP9Is connected to node z, the resistor R13Is connected with a node y, and the resistor R14Left end of and multiplier MUL1Is connected to the output of the multiplier MUL, the multiplier MUL1Is connected to node-y, said multiplier MUL1Is connected to node z, said resistor R15The left end of (a) is connected with a node f; the operational amplifier OP1Positive input terminal of, operational amplifier OP2Positive input terminal of, operational amplifier OP3Positive input terminal of, operational amplifier OP4Positive input terminal of, operational amplifier OP5Positive input terminal of, operational amplifier OP6Positive input terminal of, operational amplifier OP7Positive input terminal of, operational amplifier OP8And the operational amplifier OP9The positive input ends of which are respectively connected to the ground.
The sine function generating circuit N2 includes: operational amplifier OP10Operational amplifier OP11Resistance R20Resistance R21Resistance R22Resistance R23And a sine function generating chip configured to have an amplitude ten times larger; the resistor R20Is connected to node x, the resistor R20Respectively with a resistor R21Left end, operational amplifier OP10Negative output ofInput terminal connection, the resistor R21Respectively with an operational amplifier OP10Output terminal of (1), resistor R22Is connected to the left end of the resistor R22Respectively with a resistor R23Left end, operational amplifier OP11Is connected to the negative input terminal of the resistor R23Respectively with an operational amplifier OP11Is connected with the input end of the sine function generating chip, and the output end of the sine function generating chip is connected with the multiplier MUL4Is connected to the first input terminal.
The sequencer N3 includes: operational amplifier OP16Operational amplifier OP17Operational amplifier OP18Operational amplifier OP19Operational amplifier OP20Resistance R36Resistance R37Resistance R38Resistance R39Resistance R40Resistance R41Resistance R42Resistance R43Node U1And node U2(ii) a The operational amplifier OP16Is connected to node z, said operational amplifier OP16Positive input end and node U of1Connected, said operational amplifier OP16Output terminal and resistor R36Is connected to the left end of the resistor R36Respectively with a resistor R37Left end, operational amplifier OP17Is connected to the negative input terminal of the resistor R37Respectively with an operational amplifier OP17Output terminal of (1), resistor R38Is connected to the left end of the resistor R38Respectively with a resistor R39Left end, operational amplifier OP20Is connected to the negative input terminal of the resistor R39Respectively with an operational amplifier OP20Output terminal of (2), multiplier MUL4Is connected with the second input end; the operational amplifier OP18Is connected to node z, said operational amplifier OP18Positive input end and node U of2Connected, said operational amplifier OP18Output terminal and resistor R40Is connected to the left end of the resistor R40Respectively with a resistor R41The left end of,Operational amplifier OP19Is connected to the negative input terminal of the resistor R41Respectively with an operational amplifier OP19Output terminal of (1), resistor R42Is connected to the left end of the resistor R42Respectively with a resistor R43Upper end, operational amplifier OP20Are connected with the positive input end of the main body; the operational amplifier OP17Positive input terminal of, operational amplifier OP19Positive input terminal and resistor R43Are respectively connected to the ground.
The state equation of the multi-scroll chaotic signal generator based on cosine control is as follows:
gate＝0.5[sgn(z-U2)-sgn(z-U1)]
f＝[cos(4wx)gate]
in the above formula, f is represented as a signal at node f, a11＝3，b11＝0.8，b12＝8，c11＝3，c12＝0.2，c13＝0.32，
d is a symbol of]Expressed as an integer, R2Expressed as resistance R2In k Ω, U1Represents a node U1Level value of U2Represents a node U2Level value of (d).
U1And U2The expression of (a) is:
T＝2π/(wk)
U1＝(N+0.25)*T，
U2＝-(M+0.75)*T
in the above formula, w is 4, k is 5, M and N are variables, and the adjustment resistor R is a resistor having a resistance of 42To change the value of d to produce different wrap numbers.
Selection of circuit elements and supply voltage of the invention: all operational amplifiers in fig. 1 and 2 are model TL 082. All multipliers in fig. 1 and 2 have the model number of AD 633. In order to facilitate circuit experiments and ensure the accuracy of the resistance value, all the resistors in fig. 1 and 2 adopt a precision resistor or a precision adjustable potentiometer. Table 1 shows resistance parameters in the basic chaotic signal generating circuit N1, the sine function generating circuit N2, and the sequencer N3, specifically:
| R1 | 33.3 | R2 | variable resistance value | R3 | 100 |
| R4 | 50 | R5 | 10 | R6 | 10 |
| R7 | 14.3 | R8 | 125 | R9 | 100 |
| R10 | 50 | R11 | 10 | R12 | 10 |
| R13 | 50 | R14 | 50 | R15 | 312.5 |
| R16 | 100 | R17 | 50 | R18 | 10 |
| R19 | 10 | R20 | 2 | R21 | 10 |
| R22 | 10 | R23 | 10 | R24 | 9 |
| R25 | 9 | R26 | 9 | R27 | 9 |
| R28 | 9 | R29 | 9 | R30 | 9 |
| R31 | 9 | R32 | 10 | R33 | 8 |
| R34 | 10 | R35 | 100 | R36 | 13.5 |
| R37 | 0.5 | R38 | 9 | R39 | 9 |
| R40 | 13.5 | R41 | 0.5 | R42 | 9 |
| R43 | 9 |
Table 1;
in table 1, the unit of resistance is k Ω.
Table 2 shows node V1And node V2The parameter values of (1) are specifically:
| V1 | 5 | V2 | 1.25 |
table 2;
in table 2, the unit of the parameter value is V.
Table 3 shows the values of the parameters for the capacitance in nF.
| C1 | 33 | C2 | 33 | C3 | 33 |
Table 3;
table 4 shows the relationship between the number of scrolls and the parameter d obtained by the multi-scroll chaotic signal generator, which is specifically:
table 4;
as can be seen from table 4, the multi-scroll chaotic signal generator of the present invention can generate a variable and considerable amount of multi-scroll signals by changing the resistor R2 (i.e., changing the parameter d). The encryption capability is improved.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.
Claims (6)
1. A multi-scroll chaotic signal generator based on sinusoidal control is characterized by comprising: basic chaotic signal generating circuit N1, sine function generating circuit N2, sequence generator N3 for generating switching control function, node f and multiplier MUL4(ii) a A node x of the basic chaotic signal generating circuit N1 is connected with the input end of the sine function generating circuit N2; the node z of the basic chaotic signal generating circuit N1 is connected with the input end of a sequence generator N3, and the output end of the sine function generating circuit N2 is connected with a multiplier MUL4Is connected to the first input of the sequence generator N3, the output of the sequence generator N3 being connected to the multiplier MUL4Is connected to the second input terminal of the multiplier MUL, the multiplier MUL4Is connected to the input terminal of the basic chaotic signal generating circuit N1 through a node f.
2. The sinusoidal-control-based multi-scroll chaotic signal generator according to claim 1, wherein: the sine function generating circuit N2 includes: operational amplifier OP10Operational amplifier OP11Resistance R20Resistance R21Resistance R22Resistance R23And a sine function generating chip configured to have an amplitude ten times larger;
the resistor R20Is connected to node x, the resistor R20Respectively with a resistor R21Left end, operational amplifier OP10Is connected to the negative input terminal of the resistor R21Respectively with an operational amplifier OP10Output terminal of (1), resistor R22Is connected to the left end of the resistor R22Respectively at the right end withResistance R23Left end, operational amplifier OP11Is connected to the negative input terminal of the resistor R23Respectively with an operational amplifier OP11Is connected with the input end of the sine function generating chip, and the output end of the sine function generating chip is connected with the multiplier MUL4Is connected to the first input terminal.
3. The sinusoidal-control-based multi-scroll chaotic signal generator according to claim 2, wherein: the basic chaotic signal generating circuit N1 includes: operational amplifier OP1Operational amplifier OP2Operational amplifier OP3Operational amplifier OP4Operational amplifier OP5Operational amplifier OP6Operational amplifier OP7Operational amplifier OP8Operational amplifier OP9Resistance R1Resistance R2Resistance R3Resistance R4Resistance R5Resistance R6Resistance R7Resistance R8Resistance R9Resistance R10Resistance R11Resistance R12Resistance R13Resistance R14Resistance R15Resistance R16Resistance R17Resistance R18Resistance R19Capacitor C1Capacitor C2Node x, node-x, node y, node-y, node z, node-z and multiplier MUL1；
The operational amplifier OP1Respectively with the resistor R1Right end of (1), resistance R2Right end of (1), resistance R3Is connected to the left end of the resistor R3Respectively with an operational amplifier OP1Output terminal of (1), resistor R4Is connected to the left end of the resistor R4Respectively with an operational amplifier OP2Negative input terminal of (1), capacitor C1Is connected to the left end of the capacitor C1Is respectively connected with the node-x and the resistor R5Is connected to the left end of the resistor R5Respectively with an operational amplifier OP3Negative input terminal of (3), resistor R6Is connected to the left end of the resistor R6Respectively with an operational amplifier OP3Is connected to node x, the resistor R1Is connected to node-y, the resistor R2Is connected to node-z;
the operational amplifier OP4Respectively with the resistor R7Right end of (1), resistance R8Right end of (1), resistance R9Is connected to the left end of the resistor R9Respectively with an operational amplifier OP4Output terminal of (1), resistor R10Is connected to the left end of the resistor R10Respectively with an operational amplifier OP5Negative input terminal of (1), capacitor C2Is connected to the left end of the capacitor C2With node-y and resistor R, respectively11Is connected to the left end of the resistor R11Respectively with an operational amplifier OP6Negative input terminal of (3), resistor R12Is connected to the left end of the resistor R12Respectively with an operational amplifier OP6Is connected to node y, the resistor R7Is connected to node-z, the resistor R8The left end of (a) is connected with a node y;
the operational amplifier OP7Respectively with the resistor R13Right end of (1), resistance R14Right end of (1), resistance R15Right end of (1), resistance R16Is connected to the left end of the resistor R16Respectively with an operational amplifier OP7Output terminal of (1), resistor R17Is connected to the left end of the resistor R17Respectively with an operational amplifier OP8Negative input terminal of (1), capacitor C3Is connected to the left end of the capacitor C3Is respectively connected with the node-z and the resistor R18Is connected to the left end of the resistor R18Respectively with an operational amplifier OP9Negative input terminal of (3), resistor R19Is connected to the left end of the resistor R19Respectively with an operational amplifier OP9Is connected to node z, the resistor R13Is connected with a node y, and the resistor R14Left end of and multiplier MUL1Is connected to the output terminalSaid multiplier MUL1Is connected to node-y, said multiplier MUL1Is connected to node z, said resistor R15The left end of (a) is connected with a node f;
the operational amplifier OP1Positive input terminal of, operational amplifier OP2Positive input terminal of, operational amplifier OP3Positive input terminal of, operational amplifier OP4Positive input terminal of, operational amplifier OP5Positive input terminal of, operational amplifier OP6Positive input terminal of, operational amplifier OP7Positive input terminal of, operational amplifier OP8And the operational amplifier OP9The positive input ends of which are respectively connected to the ground.
4. The sinusoidal-control-based multi-scroll chaotic signal generator according to claim 3, wherein: the sequencer N3 includes: operational amplifier OP16Operational amplifier OP17Operational amplifier OP18Operational amplifier OP19Operational amplifier OP20Resistance R36Resistance R37Resistance R38Resistance R39Resistance R40Resistance R41Resistance R42Resistance R43Node U1And node U2；
The operational amplifier OP16Is connected to node z, said operational amplifier OP16Positive input end and node U of1Connected, said operational amplifier OP16Output terminal and resistor R36Is connected to the left end of the resistor R36Respectively with a resistor R37Left end, operational amplifier OP17Is connected to the negative input terminal of the resistor R37Respectively with an operational amplifier OP17Output terminal of (1), resistor R38Is connected to the left end of the resistor R38Respectively with a resistor R39Left end, operational amplifier OP20Is connected to the negative input terminal of the resistor R39Respectively with an operational amplifier OP20Output terminal of, multiplicationDevice MUL4Is connected to the second input terminal of the first,
the operational amplifier OP18Is connected to node z, said operational amplifier OP18Positive input end and node U of2Connected, said operational amplifier OP18Output terminal and resistor R40Is connected to the left end of the resistor R40Respectively with a resistor R41Left end, operational amplifier OP19Is connected to the negative input terminal of the resistor R41Respectively with an operational amplifier OP19Output terminal of (1), resistor R42Is connected to the left end of the resistor R42Respectively with a resistor R43Upper end, operational amplifier OP20Are connected with the positive input end of the main body;
the operational amplifier OP17Positive input terminal of, operational amplifier OP19Positive input terminal and resistor R43Are respectively connected to the ground.
5. The sinusoidal-control-based multi-scroll chaotic signal generator according to any one of claims 1 to 4, wherein: the resistors adopted by the basic chaotic signal generating circuit N1, the sine function generating circuit N2 and the sequencer N3 are all precision adjustable resistors or precision adjustable potentiometers.
6. The sinusoidal-control-based multi-scroll chaotic signal generator according to claim 2, wherein: the model of the sine function generating chip is AD 639.
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| CN111865554A (en) * | 2020-06-24 | 2020-10-30 | 佛山科学技术学院 | Multi-scroll chaotic signal generator and encryption system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111835498A (en) * | 2020-06-24 | 2020-10-27 | 佛山科学技术学院 | Multi-wing chaotic signal generator and encryption system |
| CN111865554A (en) * | 2020-06-24 | 2020-10-30 | 佛山科学技术学院 | Multi-scroll chaotic signal generator and encryption system |
| CN111865554B (en) * | 2020-06-24 | 2023-10-31 | 佛山科学技术学院 | Multi-scroll chaotic signal generator and encryption system |
| CN111835498B (en) * | 2020-06-24 | 2024-03-29 | 佛山科学技术学院 | Multi-wing chaotic signal generator and encryption system |
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| CN110943822B (en) | 2023-04-07 |
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