1标准版本的变化概况ISO/IEC 27002:2022发布于2022年2月,为第三版,名称为《信息安全、网络安全与隐私保护信息安全控制》(Information security,cybersecurity and privacy protection-Information security controls)。ISO/IEC 27002...1标准版本的变化概况ISO/IEC 27002:2022发布于2022年2月,为第三版,名称为《信息安全、网络安全与隐私保护信息安全控制》(Information security,cybersecurity and privacy protection-Information security controls)。ISO/IEC 27002的第一版发布于2000年,当时为ISO/IEC 17799:2000,名称为《信息技术安全技术信息安全管理实用规则》(Information technology-Security techniques-Code of practice for information security management)。展开更多
This paper deals with the synchronization of chaotic systems with structure or parameters difference. Nonlinear differential geometry theory was applied to transform the chaotic discrepancy system into canonical form....This paper deals with the synchronization of chaotic systems with structure or parameters difference. Nonlinear differential geometry theory was applied to transform the chaotic discrepancy system into canonical form. A feedback control for synchronizing two chaotic systems is proposed based on sliding mode control design. To make this controller physically realizable, an extended state observer is used to estimate the error between the transmitter and receiver. Two illustrative examples were carried out: (1) The Chua oscillator was used to show that synchronization was achieved and the message signal was recovered in spite of parametric variations; (2) Two second-order driven oscillators were presented to show that the synchronization can be achieved and that the message can be recovered in spite of the strictly different model.展开更多
文摘1标准版本的变化概况ISO/IEC 27002:2022发布于2022年2月,为第三版,名称为《信息安全、网络安全与隐私保护信息安全控制》(Information security,cybersecurity and privacy protection-Information security controls)。ISO/IEC 27002的第一版发布于2000年,当时为ISO/IEC 17799:2000,名称为《信息技术安全技术信息安全管理实用规则》(Information technology-Security techniques-Code of practice for information security management)。
基金Project (No. 20040146) supported by Zhejiang Provincial Edu-cation Department Foundation, China
文摘This paper deals with the synchronization of chaotic systems with structure or parameters difference. Nonlinear differential geometry theory was applied to transform the chaotic discrepancy system into canonical form. A feedback control for synchronizing two chaotic systems is proposed based on sliding mode control design. To make this controller physically realizable, an extended state observer is used to estimate the error between the transmitter and receiver. Two illustrative examples were carried out: (1) The Chua oscillator was used to show that synchronization was achieved and the message signal was recovered in spite of parametric variations; (2) Two second-order driven oscillators were presented to show that the synchronization can be achieved and that the message can be recovered in spite of the strictly different model.
