Chaotic signal source with adjustable dynamic amplitude linearity

Abstract

The invention relates to a chaotic signal source with adjustable dynamic amplitude linearity and a system with identical dynamic characteristics, comprising an inverse proportion circuit, a first integrating circuit, a second integrating circuit and a third integrating circuit, wherein the output ends of a third operational amplifier, a second operational amplifier and a first operational amplifier sequentially output three state variables (x, y, z) of the chaotic signal source; when the chaotic signal source works, the dynamic amplitudes of the three state variables (x, y, z) are linearly adjusted by adjusting the output voltage of a DC power supply, and the three state variables (x, y, z) are enabled to have the identical dynamic characteristics. Because the chaotic signal source has adjustable amplitude and frequency spectrums of different frequency ranges and the like under the precondition without changing the dynamic characteristics of an output signal, the chaotic signal source is indicated to have extensive application prospect and important application value in the high technology fields of chaotic radars, secret communication, electronic countermeasure, and the like.

Description

technical field [0001] The invention relates to a chaotic signal source whose dynamic amplitude is linearly adjustable and whose system has constant dynamic characteristics. Background technique [0002] Ordinary signal sources can generate periodic signals with different waveforms, and have been widely used in the field of information engineering. The characteristic of periodic signal is that it is convenient for the synchronization of modulation and demodulation, but it is not conducive to the requirements of special fields such as information encryption. Chaotic signals have the characteristics of inherent randomness, initial value sensitivity, broadband, ergodicity, and boundedness, and can generate broadband signals similar to white noise. Therefore, chaotic signals have a wide range of applications in the fields of information encryption, secure communication, and chaotic radar. prospect. The chaotic signal source is an important part of the modulation and demodulati...

AI Technical Summary

Problems solved by technology

Generally, the dynamics of these chaotic systems will change when the system parameters are adjusted. Even if the dynamics of the system does not change much when the parameters are adjusted locally, it is difficult to ensure that the dynamic range of the output chaotic signal shows a linear change.

[0004] The disadvantage of the chaotic system in the prior art is that it is impossible to realize a chaotic signal source whose dynamic amplitude is linearly adjustable and the system has constant dynamic characteristics

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