An Experimental Communication Scheme Based on Chaotic Time-Delay System with Switched Delay

Karavaev, Anatoly S.; Kulminskiy, D. D.; Ponomarenko, V. I.; Прохоров, М. Д.

doi:10.1142/s0218127415501345

Cited by 15 publications

(6 citation statements)

References 33 publications

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“…In practice, the message transfer between Alice and Bob is achieved through transmission channel. To consider the actual situation of chaotic secure communication, we further investigate the tolerance of the proposed scheme to noise and amplitude distortions of the signal in the transmission channel [20]. The noise simulated is an additive zero-mean Gaussian white noise.…”

Section: Modulation and Demodulation Of Messagementioning

confidence: 99%

Enhanced Bidirection Secure Communication Based on Digital Key and Chaotic Random Optical Feedback

Zhang

Cui

2018

IEEE Photonics J.

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A novel bidirection secure communication scheme based on the digital key and chaotic random optical feedback is proposed and numerically verified. Digital sequence is used as a key to control random variation of external cavity optical feedback, and under the operation of this random feedback, high-dimensional chaotic light is generated with complex dynamics. It is proved that chaotic time delay signature is effectively suppressed and key space increases significantly, which enhances the security of chaotic secure communication. Meanwhile, the bidirection chaotic secure communication is successfully implemented with the message rate of 10 Gb/s. In addition, simulation results show that the proposed scheme increases system synchronization and reduces the bit-error rate of the transmitted message.

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Section: Modulation and Demodulation Of Messagementioning

confidence: 99%

Enhanced Bidirection Secure Communication Based on Digital Key and Chaotic Random Optical Feedback

Zhang

Cui

2018

IEEE Photonics J.

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“…Чем сложнее хаос, тем более надежной в плане конфиден-циальности будет система связи. Для генерации сложных хаотических колебаний требуются системы со сравнительно большой размерностью фазового пространства: многомодовые, с запаздыванием [7][8][9][10] или распределенные системы. В рамках настоящей работы рассмотрим многомодовую систему.…”

Section: возбуждение хаотических и квазипериодических колебаний 47unclassified

Возбуждение Хаотических И Квазипериодических Колебаний В Многоконтурном Генераторе С Общей Схемой Управления

Станкевич¹,

Астахов²,

Кузнецов³

et al. 2018

Письма В Журнал Технической Физики

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We propose a multicircuit oscillator with a common control scheme driving self-sustained oscillations in each circuit, which can exhibit quasi-periodic and chaotic oscillations. The proposed oscillator was investigated by experimental and numerical methods that confirmed the possibility of exciting multifrequency quasi-periodic, chaotic, and hyperchaotic oscillations with several positive Lyapunov exponents.

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“…В динамике популяций запаздывание связано с тем, что особи участвуют в репродукции лишь после периода взросления [9]. Одним из практических применений кольцевых автоколебательных систем с задержкой является построение систем передачи информации на хаотической несущей [10], в том числе в оптическом диапазоне [11,12].…”

Section: Introductionunclassified

Estimation of delay times from time series of ring self-oscillatory time-delay systems

Ponomarenko¹,

Lapsheva²,

Прохоров³

2022

ICS

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Introduction: The problem of delay time estimation in ring self-oscillatory time-delay systems arises in various fields of science and is of great importance in the study of real systems generating chaotic time series. Purpose: To conduct a comparative analysis of the operation of methods for the reconstruction of time-delay systems from chaotic time series in the absence and presence of additive noise. Methods: Methods for estimating the delay time according to the statistics of extrema, using the autocorrelation function and the method of order time asymmetry are used. Based on the latter method, a method is proposed that is focused on estimating the delay times in systems with two delays. Results: We carry out a comparative analysis of the operation of four methods for reconstructing the delay times in self-oscillating time-delay systems from chaotic time series using the example of Ikeda systems with one and two delay times. We demonstrate that in the absence of additive noise, the delay time estimation method based on statistics of extrema is the most accurate one for the case of time series analysis of systems with both one and two delays. In the presence of additive noise, the modified method of order time asymmetry proposed in the work in the case of the analysis of systems with one delay time works no worse than the method of the autocorrelation function and order time asymmetry. In the case of two delay times, the modified order time asymmetry method works better than others. Practical relevance: The described methods can have a practical application in estimating the delay time of self-oscillating systems, yet the level of additive noise can affect the accuracy of the estimate.

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An Experimental Communication Scheme Based on Chaotic Time-Delay System with Switched Delay

Cited by 15 publications

References 33 publications

Enhanced Bidirection Secure Communication Based on Digital Key and Chaotic Random Optical Feedback

Enhanced Bidirection Secure Communication Based on Digital Key and Chaotic Random Optical Feedback

Возбуждение Хаотических И Квазипериодических Колебаний В Многоконтурном Генераторе С Общей Схемой Управления

Estimation of delay times from time series of ring self-oscillatory time-delay systems

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