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Quantum algorithm for minimum dominating set problem with circuit design
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作者 张皓颖 王绍轩 +2 位作者 刘新建 沈颖童 王玉坤 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第2期178-188,共11页
Using quantum algorithms to solve various problems has attracted widespread attention with the development of quantum computing.Researchers are particularly interested in using the acceleration properties of quantum a... Using quantum algorithms to solve various problems has attracted widespread attention with the development of quantum computing.Researchers are particularly interested in using the acceleration properties of quantum algorithms to solve NP-complete problems.This paper focuses on the well-known NP-complete problem of finding the minimum dominating set in undirected graphs.To expedite the search process,a quantum algorithm employing Grover’s search is proposed.However,a challenge arises from the unknown number of solutions for the minimum dominating set,rendering direct usage of original Grover’s search impossible.Thus,a swap test method is introduced to ascertain the number of iterations required.The oracle,diffusion operators,and swap test are designed with achievable quantum gates.The query complexity is O(1.414^(n))and the space complexity is O(n).To validate the proposed approach,qiskit software package is employed to simulate the quantum circuit,yielding the anticipated results. 展开更多
关键词 quantum algorithm circuit design minimum dominating set
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Design of Novel and Low Cost Triple-node Upset Self-recoverable Latch
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作者 BAI Na MING Tianbo +3 位作者 XU Yaohua WANG Yi LI Yunfei LI Li 《原子能科学技术》 EI CAS CSCD 北大核心 2023年第12期2326-2336,共11页
With the development of semiconductor technology,the size of transistors continues to shrink.In complex radiation environments in aerospace and other fields,small-sized circuits are more prone to soft error(SE).Curren... With the development of semiconductor technology,the size of transistors continues to shrink.In complex radiation environments in aerospace and other fields,small-sized circuits are more prone to soft error(SE).Currently,single-node upset(SNU),double-node upset(DNU)and triple-node upset(TNU)caused by SE are relatively common.TNU’s solution is not yet fully mature.A novel and low-cost TNU self-recoverable latch(named NLCTNURL)was designed which is resistant to harsh radiation effects.When analyzing circuit resiliency,a double-exponential current source is used to simulate the flipping behavior of a node’s stored value when an error occurs.Simulation results show that the latch has full TNU self-recovery.A comparative analysis was conducted on seven latches related to TNU.Besides,a comprehensive index combining delay,power,area and self-recovery—DPAN index was proposed,and all eight types of latches from the perspectives of delay,power,area,and DPAN index were analyzed and compared.The simulation results show that compared with the latches LCTNURL and TNURL which can also achieve TNU self-recoverable,NLCTNURL is reduced by 68.23%and 57.46%respectively from the perspective of delay.From the perspective of power,NLCTNURL is reduced by 72.84%and 74.19%,respectively.From the area perspective,NLCTNURL is reduced by about 28.57%and 53.13%,respectively.From the DPAN index perspective,NLCTNURL is reduced by about 93.12%and 97.31%.The simulation results show that the delay and power stability of the circuit are very high no matter in different temperatures or operating voltages. 展开更多
关键词 circuit reliability latch design self-recoverability soft error radiation hardening triple-node upset
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Practice and Features of Neo-Chinese Style in Rural Landscape in Zhejiang Province
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作者 Xianfen HE Haining LIU 《Asian Agricultural Research》 2023年第6期30-32,共3页
Neo-Chinese style is popular nowadays and it is wildly used in rural landscape,with only few theories.Under the background of rural revitalization,this paper discussed practice types and design features of neo-Chinese... Neo-Chinese style is popular nowadays and it is wildly used in rural landscape,with only few theories.Under the background of rural revitalization,this paper discussed practice types and design features of neo-Chinese style in rural landscape.Some typical and famous villages of Ningbo,Quzhou and Lishui cities in Zhejiang Province were chosen as cases in this paper.It is committed to providing some theories,inheriting rural culture and promoting rural revitalization. 展开更多
关键词 Neo-Chinese style Rural landscape design features
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A new Rsslor hyperchaotic system and its realization with systematic circuit parameter design 被引量:31
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作者 王光义 何海莲 《Chinese Physics B》 SCIE EI CAS CSCD 2008年第11期4014-4021,共8页
Based on two modified Rsslor hyperchaotic systems, which are derived from the chaotic Rsslor system by introducing a state feedback controller, this paper proposes a new switched Rsslor hyperchaotic system. The ... Based on two modified Rsslor hyperchaotic systems, which are derived from the chaotic Rsslor system by introducing a state feedback controller, this paper proposes a new switched Rsslor hyperchaotic system. The switched system contains two different hyperchaotic systems and can change its behaviour continuously from one to another via a switching function. On the other hand, it presents a systematic method for designing the circuit of realizing the proposed hyperchaotic system. In this design, circuit state equations are written in normalized dimensionless form by rescaling the time variable. Furthermore, an analogous circuit is designed by using the proposed method and built for verifying the new hyperchaos and the design method. Experimental results show a good agreement between numerical simulations and experimental results. 展开更多
关键词 超混沌系统 电路性能 参数设计 非线性物理学
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NAND闪存可靠性验证实验平台设计与应用
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作者 王今雨 安健 +3 位作者 王龙翔 唐新龙 丁跃 陈睿佳 《实验技术与管理》 CAS 北大核心 2024年第2期186-192,共7页
为满足NAND闪存芯片性能和可靠性量化分析与测试的教学实验需求,自研NAND闪存可靠性验证实验设备,基于该设备构建了NAND闪存可靠性验证实验平台。平台支持软硬件构建过程测试和结果分析等相关实验内容,并通过实例测试验证了其实用性。... 为满足NAND闪存芯片性能和可靠性量化分析与测试的教学实验需求,自研NAND闪存可靠性验证实验设备,基于该设备构建了NAND闪存可靠性验证实验平台。平台支持软硬件构建过程测试和结果分析等相关实验内容,并通过实例测试验证了其实用性。平台可覆盖计算机类工科本科阶段多门专业课程的课内实验、专题实验、开放创新实验、课程设计以及毕业设计等,培养学生理论结合实践、独立思考、动手解决工程问题的能力。 展开更多
关键词 实验设备 闪存可靠性 数字电路设计 FPGA
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DESIGN OF TWO-PHASE SINUSOIDAL POWER CLOCK AND CLOCKED TRANSMISSION GATE ADIABATIC LOGIC CIRCUIT 被引量:5
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作者 Wang Pengjun Yu Junjun 《Journal of Electronics(China)》 2007年第2期225-231,共7页
First the research is conducted on the design of the two-phase sinusoidal power clock gen- erator in this paper. Then the design of the new adiabatic logic circuit adopting the two-phase sinusoidal power clocks—Clock... First the research is conducted on the design of the two-phase sinusoidal power clock gen- erator in this paper. Then the design of the new adiabatic logic circuit adopting the two-phase sinusoidal power clocks—Clocked Transmission Gate Adiabatic Logic (CTGAL) circuit is presented. This circuit makes use of the clocked transmission gates to sample the input signals, then the output loads are charged and discharged in a fully adiabatic manner by using bootstrapped N-Channel Metal Oxide Semiconductor (NMOS) and Complementary Metal Oxide Semiconductor (CMOS) latch structure. Finally, with the parameters of Taiwan Semiconductor Manufacturing Company (TSMC) 0.25μm CMOS device, the transient energy consumption of CTGAL, Bootstrap Charge-Recovery Logic (BCRL) and Pass-transistor Adiabatic Logic (PAL) including their clock generators is simulated. The simula-tion result indicates that CTGAL circuit has the characteristic of remarkably low energy consumption. 展开更多
关键词 两相正弦功率时钟 时钟发生器 电路设计 钟控传输门绝热逻辑电路
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Principle analysis and electromagnetic design of half-bridge commutating circuit for thyristor arc welding inverter
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作者 LI Zhongyou LI Qiaomin +1 位作者 YANG Min LI Qingbin and YANG Youli(Welding Department. Shandong University of Technology. Ji’nan. 250014) 《China Welding》 EI CAS 1996年第1期10-21,共12页
Principleanalysisandelectromagneticdesignofhalf-bridgecommutatingcircuitforthyristorarcweldinginverterLIZhon... Principleanalysisandelectromagneticdesignofhalf-bridgecommutatingcircuitforthyristorarcweldinginverterLIZhongyou;LIQiaomin;YA... 展开更多
关键词 RLCU equivalent circuit current SHIFTING inverse voltage forming design State
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A UNIFIED THEORY FOR DESIGNING ANDANALYZING BOTH SYNCHRONOUS AND ASYNCHRONOUS SEQUENTIAL CIRCUITS
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作者 吴训威 陈晓莉 金瓯 《Journal of Electronics(China)》 1995年第1期15-23,共9页
The paper discusses general expressions of the clock signal and the next state equations containing the clock signal for flip-flops, and based on it, a unified theory for designing and analyzing both synchronous and a... The paper discusses general expressions of the clock signal and the next state equations containing the clock signal for flip-flops, and based on it, a unified theory for designing and analyzing both synchronous and asynchronous sequential circuits is proposed. The theory is proved effective by practical examples. 展开更多
关键词 SEQUENTIAL circuitS CLOCK signal LOGIC design
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Landscape Features and Design Elements of Earth-sheltered Buildings
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作者 LI Hui CAI Ping TANG Jian 《Journal of Landscape Research》 2012年第8期5-7,共3页
Categories of earth-sheltered buildings were summarized, and it was proposed that landscape features of earth-sheltered buildings were demonstrated mainly as "ecological, landscape-like and systematic". Land... Categories of earth-sheltered buildings were summarized, and it was proposed that landscape features of earth-sheltered buildings were demonstrated mainly as "ecological, landscape-like and systematic". Landscape elements such as entrance, road, water and greening were believed as major means of showing landscape features of earth-sheltered buildings. Entrance landscape design of such buildings was analyzed from the perspectives of plane-type, slope-type and step-type forms. Road design for these buildings should respect natural terrains so as to connect spaces and organize traffic routes reasonably. Waterscape design should take both landscape effects and loading capacity of roof into consideration so as to meet water-loving psychology of the public, virtual and real approaches should be combined to create waterscapes. Greening design of earth-sheltered buildings was explored from the perspectives of roof greening and vertical greening to improve the green coverage rate and show favorable ecological effects. 展开更多
关键词 Earth-sheltered BUILDINGS LandSCAPE features LandSCAPE design
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Microwave Integrated Circuit Design Handbook
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作者 顾墨琳 《微波学报》 1987年第3期43-43,共1页
作者:Reinmut K.Hoffmann(1984 IEEE微波奖获得者) 出版:Artech House公司(美国)1987年本书给出适于微波工程师和研究人员应用的有关MIC方面的基础技术、电性能和设计。侧重于电性能分析和设计,强调应用。对于每一种设计技术和应用均作... 作者:Reinmut K.Hoffmann(1984 IEEE微波奖获得者) 出版:Artech House公司(美国)1987年本书给出适于微波工程师和研究人员应用的有关MIC方面的基础技术、电性能和设计。侧重于电性能分析和设计,强调应用。对于每一种设计技术和应用均作出较清楚的叙述和完整的处理。本书尽量给出电路的物理描述,避免过于冗长的数学公式,内容包含对下列议题的详细评述与研讨: 展开更多
关键词 微带传输线 微带线 Microwave Integrated circuit design Handbook
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Hydraulic Circuit Design and Dynamic Learning Using Case-based Reasoning
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作者 C.M. Vong and PK. Wong (Faculty of Science and Technology, University of Maca4 P.O. Box 3001, Micau E-mail fstcmvumac mo Fax:(853) 838314 Tel: (853) 397476) 《Computer Aided Drafting,Design and Manufacturing》 2000年第1期9-16,共8页
This paper describes the design and implementation of a hydraulic circuit design system using case-based reasoning (CBR) paradigm from AI community The domain of hydraulic circuit design and case-based reasoning are b... This paper describes the design and implementation of a hydraulic circuit design system using case-based reasoning (CBR) paradigm from AI community The domain of hydraulic circuit design and case-based reasoning are briefly reviewed Then a proposed methodology in compuer-aided circuit design and dynamic leaning with the use of CBR is described Finally an application example is selected to illustrate the ussfulness of applying CBR in hydraulic circuit design with leaming. 展开更多
关键词 HYDRAULIC circuit design case-based reasoning(CBR) DYNAMIC LEARNING
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High performance integrated photonic circuit based on inverse design method 被引量:5
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作者 Huixin Qi Zhuochen Du +3 位作者 Xiaoyong Hu Jiayu Yang Saisai Chu Qihuang Gong 《Opto-Electronic Advances》 SCIE EI CAS 2022年第10期22-34,共13页
The basic indexes of all-optical integrated photonic circuits include high-density integration,ultrafast response and ultralow energy consumption.Traditional methods mainly adopt conventional micro/nano-structures.The... The basic indexes of all-optical integrated photonic circuits include high-density integration,ultrafast response and ultralow energy consumption.Traditional methods mainly adopt conventional micro/nano-structures.The overall size of the circuit is large,usually reaches hundreds of microns.Besides,it is difficult to balance the ultrafast response and ultra-low energy consumption problem,and the crosstalk between two traditional devices is difficult to overcome.Here,we propose and experimentally demonstrate an approach based on inverse design method to realize a high-density,ultrafast and ultra-low energy consumption integrated photonic circuit with two all-optical switches controlling the input states of an all-optical XOR logic gate.The feature size of the whole circuit is only 2.5μm×7μm,and that of a single device is 2μm×2μm.The distance between two adjacent devices is as small as 1.5μm,within wavelength magnitude scale.Theoretical response time of the circuit is 150 fs,and the threshold energy is within 10 fJ/bit.We have also considered the crosstalk problem.The circuit also realizes a function of identifying two-digit logic signal results.Our work provides a new idea for the design of ultrafast,ultra-low energy consumption all-optical devices and the implementation of high-density photonic integrated circuits. 展开更多
关键词 all-optical integrated photonic circuit inverse design all-optical switch all-optical XOR logic gate
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LOW-FREQUENCY LOW-NOISE CIRCUITS DESIGN USING AN E_n-I_n MODEL 被引量:1
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作者 Wang Jun (China Academy of Engineering and Physics, Chengdu 610003)Dai Yisong(Jilin University of Technology, Changchun 130025) 《Journal of Electronics(China)》 1999年第1期58-65,共8页
In view of the limitations of a Rn-Gn model in the low frequency range and the defects of an En-In model in common use now, this paper builds a complete En-In model according to the theory of random harmonic. The para... In view of the limitations of a Rn-Gn model in the low frequency range and the defects of an En-In model in common use now, this paper builds a complete En-In model according to the theory of random harmonic. The parameters for the low-noise design such as the equivalent input noisy voltage Ens, the optimum source impedance Zsopt and the minimum noise figure Fmin can be calculated accurately by using this En-In model because it considers the coherence between the noise sources fully. Moreover, this paper points out that it will cause the maximum 30% miscalculation when neglecting the effects of the correlation coefficient 7. Using the series-series circuits as an example, this paper discusses the methods for the En-In noise analysis of electronic circuits preliminarily and demonstrates its correctness through the comparison between the simulated and measured results of the minimum noise figure Fmin of a single current series negative feedback circuit. 展开更多
关键词 En-In MODEL LOW-FREQUENCY circuitS LOW-NOISE design
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A review on the design of ternary logic circuits 被引量:1
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作者 王晓媛 董传涛 +1 位作者 吴志茹 程知群 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第12期7-18,共12页
A multi-valued logic system is a promising alternative to traditional binary logic because it can reduce the complexity,power consumption, and area of circuit implementation. This article briefly summarizes the develo... A multi-valued logic system is a promising alternative to traditional binary logic because it can reduce the complexity,power consumption, and area of circuit implementation. This article briefly summarizes the development of ternary logic and its advantages in digital logic circuits. The schemes, characteristics, and application of ternary logic circuits based on CMOS, CNTFET, memristor, and other devices and processes are reviewed in this paper, providing some reference for the further research and development of ternary logic circuits. 展开更多
关键词 ternary logic circuit MEMRISTOR digital logic circuit circuit design
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Feature evaluation and extraction based on neural network in analog circuit fault diagnosis 被引量:16
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作者 Yuan Haiying Chen Guangju Xie Yongle 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2007年第2期434-437,共4页
Choosing the right characteristic parameter is the key to fault diagnosis in analog circuit. The featureevaluation and extraction methods based on neural network are presented. Parameter evaluation of circuit features... Choosing the right characteristic parameter is the key to fault diagnosis in analog circuit. The featureevaluation and extraction methods based on neural network are presented. Parameter evaluation of circuit features is realized by training results from neural network; the superior nonlinear mapping capability is competent for extracting fault features which are normalized and compressed subsequently. The complex classification problem on fault pattern recognition in analog circuit is transferred into feature processing stage by feature extraction based on neural network effectively, which improves the diagnosis efficiency. A fault diagnosis illustration validated this method. 展开更多
关键词 故障诊断 神经网络 模型电路 特征抽出 主成分分析
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Design, Fabrication, and Modeling of CMOS-Compatible Double Photodiode 被引量:1
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作者 Sheng Xie Xuetao Luo +1 位作者 Luhong Mao Haiou Li 《Transactions of Tianjin University》 EI CAS 2017年第2期163-167,共5页
A double photodiode(PD) constructed by p^+/N-well junction and N-well/p-sub junction was designed and fabricated in a UMC 0.18-lm CMOS process. Based on the device structure and mechanism of double PD, a novel small-s... A double photodiode(PD) constructed by p^+/N-well junction and N-well/p-sub junction was designed and fabricated in a UMC 0.18-lm CMOS process. Based on the device structure and mechanism of double PD, a novel small-signal equivalent circuit model considering the carrier transit effect and the parasitic RC time constant was presented. By this model with complete electronic components, the double PD can be incorporated in a commercial circuit simulator. The component values were extracted by fitting the measured S-parameters using simulated annealing algorithm, and a good agreement between the measurement and the simulation results was achieved. 展开更多
关键词 PHOTODIODE Device simulation EQUIVALENT circuit model SCATTERING PARAMETER
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Modelling Design and Test of Steam Centrifugal Compressor
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作者 秦仁 牛利民 郑群 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 1997年第2期34-38,共5页
ModelingDesignandTestofSteamCentrifugalCompresorQINRenNIULimin*ZHENGQun*(秦仁)(牛利民)(郑群)(Dept.ofPowerEnginering... ModelingDesignandTestofSteamCentrifugalCompresorQINRenNIULimin*ZHENGQun*(秦仁)(牛利民)(郑群)(Dept.ofPowerEnginering,HarbinInstituteo... 展开更多
关键词 STEAM CENTRIFUGAL COMPRESSOR MODELLING design STEAM closed circuit TEST
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SYNCHRONOUS DERIVED CLOCK AND SYNTHESIS OF LOW POWER SEQUENTIAL CIRCUITS
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作者 Wu Xunwei (Department of Electronic Engineering, Zhejiang University, Hangzhou 310028)Qing Wu Massoud Pedram (Department of Electrical Engineering-Systems, University of Southern California, USA) 《Journal of Electronics(China)》 1999年第2期138-145,共8页
Based on analyzing significance of controlling clock in design of low power sequential circuits, this paper proposes a technique that the gating signal is derived from the master latch in a flip-flop to make the deriv... Based on analyzing significance of controlling clock in design of low power sequential circuits, this paper proposes a technique that the gating signal is derived from the master latch in a flip-flop to make the derived clock having no glitch and no skew. The design of a decimal counter with half-frequency division shows that by using the synchronous derived clock the counter has lower power dissipation as well as simpler combinational logic. Computer simulation shows 20% power saving. 展开更多
关键词 Low power SEQUENTIAL circuit LOGIC design DERIVED CLOCK
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Challenges and opportunities toward fully automated analog layout design
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作者 Hao Chen Mingjie Liu +3 位作者 Xiyuan Tang Keren Zhu Nan Sun David Z.Pan 《Journal of Semiconductors》 EI CAS CSCD 2020年第11期71-80,共10页
Realizing the layouts of analog/mixed-signal(AMS)integrated circuits(ICs)is a complicated task due to the high design flexibility and sensitive circuit performance.Compared with the advancements of digital IC layout a... Realizing the layouts of analog/mixed-signal(AMS)integrated circuits(ICs)is a complicated task due to the high design flexibility and sensitive circuit performance.Compared with the advancements of digital IC layout automation,analog IC layout design is still heavily manual,which leads to a more time-consuming and error-prone process.In recent years,significant progress has been made in automated analog layout design with emerging of several open-source frameworks.This paper firstly reviews the existing state-of-the art AMS layout synthesis frameworks with focus on the different approaches and their individual challenges.We then present recent research trends and opportunities in the field.Finally,we summaries the paper with open questions and future directions for fully-automating the analog IC layout. 展开更多
关键词 VLSI integrated circuit ASIC EDA analog ic design physical design
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Synchronization of the fractional-order generalized augmented L u¨system and its circuit implementation 被引量:2
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作者 薛薇 徐进康 +1 位作者 仓诗建 贾红艳 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第6期82-89,共8页
In this paper, the synchronization of the fractional-order generalized augmented Lu¨ system is investigated. Based on the predictor–corrector method, we obtain phase portraits, bifurcation diagrams, Lyapunov exp... In this paper, the synchronization of the fractional-order generalized augmented Lu¨ system is investigated. Based on the predictor–corrector method, we obtain phase portraits, bifurcation diagrams, Lyapunov exponent spectra, and Poincare′maps of the fractional-order system and find that a four-wing chaotic attractor exists in the system when the system parameters change within certain ranges. Further, by varying the system parameters, rich dynamical behaviors occur in the2.7-order system. According to the stability theory of a fractional-order linear system, and adopting the linearization by feedback method, we have designed a nonlinear feedback controller in our theoretical analysis to implement the synchronization of the drive system with the response system. In addition, the synchronization is also shown by an electronic circuit implementation for the 2.7-order system. The obtained experiment results accord with the theoretical analyses,which further demonstrate the feasibility and effectiveness of the proposed synchronization scheme. 展开更多
关键词 LTI系统 分数阶系统 同步性 电路实现 LYAPUNOV指数谱 广义 线性反馈控制器 混沌吸引子
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