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Narrowband time delay estimation based on correlation coefficient

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Journal of Systems Engineering and Electronics 2009年第5期20卷 937-941页

作者： Gao Yang Qiu Tianshuang Sha Lan zhao yanbin School of Electronic and Information Engineering Dalian Univ. of Technology Dalian 116024 P. R. China

The problems of time delay estimation of narrowband signals are presented. The disadvantages of the existing algorithms are analyzed, and a new narrowband time delay estimating algorithm based on correlation coefficient is proposed. The original time delay information is transfered into the delay between the autocorrelation and cross-correlation function, and the precise estimating result by wave-comparison is given. The algorithm proposed here is also compared with other algorithms and its advantages over other algorithms are proved. The theoretical analysis and simulation show the effectiveness of the proposed algorithm.

关键词： time delay estimation narrowband signal correlation coefficient.

Twistor-based synchronous sliding mode control of spacecraft attitude and position

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Chinese Journal of Aeronautics 2018年第5期31卷 1153-1164页

作者： Qing LI Lei LIU Yifan DENG Shuo TANG yanbin zhao Shaanxi Aerospace Flight Vehicle Design Key Laboratory School of Astronautics Northwestern Polytechnical UniversityXi'an 710072 China Shanghai Institute of Satellite Engineering Shanghai 200240 China

A synchronous control of relative attitude and position is required in separated ultraquiet spacecraft, such as drag-free, disturbance-free, and distributed spacecraft. Thus, a twistorbased synchronous sliding mode control is investigated in this paper to solve the control problem of relative attitude and position among separated spacecraft modules. The twistor-based control design and the stability proof are implemented using the Modified Rodrigues Parameter（MRP）.To evaluate the effectiveness of the proposed control method, this paper presents a case study of separated spacecraft flying control considering the mass uncertainty and external disturbances. In addition, a simulation study of the Proportional-Derivative（PD） control is also presented for comparison. The results indicate that the twistor-based sliding mode controller can ensure global asymptotic stability. The states converge fast with ultra-precision and ultra-stability in both the attitude and position. Moreover, the proposed twistor-based sliding mode control system is robust to the mass uncertainty and external disturbances.

关键词： Distributed spacecraft Gravitational wave detection Synchronous control Ultra-precision Ultra-stability

Research on the development of intelligent service industry of Shandong in the era of "Internet+" 32

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Research on the development of intelligent service industry ...

Research on the development of smart family in the era of digital economy 32

第32届中国控制与决策会议

作者： zhao yanbin Tang Kuiyu Gao Xinkun Wang Yumei Social Engineering Research Center Harbin Institute of Technology Qingdao University of Science and Technology

ISBN: (数字)9781728158556

ISBN: (纸本)9781728158563

The intelligent service industry has the characteristics of high intensity of intelligence elements,high added value of output,less consumption of resources and less environmental pollution and has gradually become an important force in the transformation and upgrading of China’s economy and the transformation of new and old driving *** paper takes the intelligent service industry in shandong as the case object,and makes a macro analysis and a quantitative analysis of its development status,objectively describes the development status of intelligent service industry in shandong province,and provides practical reference for further development policies.

关键词： Intelligent Service Industry Development Internet+

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Research on the development of smart family in the era of di...

Steganalysis of MSU Stego Video Based on Block Matching of Interframe Collusion and Motion Detection

第32届中国控制与决策会议

作者： zhao yanbin Tang Kuiyu Gao Jian Wang Yumei Social Engineering Research Center Harbin Institute of Technology Qingdao University of Science and Technology

ISBN: (数字)9781728158556

ISBN: (纸本)9781728158563

The smart home is based on the house,which integrates the facilities related to the home life by using the comprehensive wiring technology,network communication technology,security technology,automatic control technology,audio and video technology,and constructs an efficient management system of the house facilities and the family schedule *** related research of the smart life mostly focuses on the development of its technology,but lacks the theoretical exploration of its life essence *** paper analyzes the development background of smart family,introduces the implementation cases of smart family,analyzes the development of smart home market scale,discusses life in the whole process of smart home industry and provides some reference for the study of the essence of intelligent life.

关键词： The smart home Development Digital economy

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Wuhan University Journal of Natural Sciences 2012年第5期17卷 441-446页

作者： REN Yanzhen WANG Mingjie zhao yanbin WANG Lina CAI Tingting School of Computer Wuhan University Wuhan 430072 Hubei China Key Laboratory of Aerospace Information Security and Trusted Computing Ministry of Education Wuhan 430072 Hubei China

MSU Stego Video is a public video steganographic tool, which has strong robustness and is regarded as a real video steganographic tool. In order to increase the detection rate, this paper proposes a new steganoalysis method against MSU, which uses the chessboard character of MSU embedded video, proposes a down-sample block-based collusion method to estimate the original frame and checks the chessboard mode of the different frame between tested frame and estimated frame to detect MSU steganographic evidences. To reduce the error introduced by severe movement of the video content, a method that abandons severe motion blocks from detecting is proposed. The experiment results show that the false negative rate of the proposed algorithm is lower than 5%, and the false positive rate is lower than 2%. Our algorithm has significantly better performance than existing algorithms. Especially to the video that has fast motion, the algorithm has more remarkable performance.

关键词： MSU Stego Video video steganalysis block-based matching chessboard pattern motion detection

Antioxidant induced bulk passivation for efficient and stable hole transport layer-free carbon electrode perovskite solar cells

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Chinese Chemical Letters 2023年第6期34卷 219-224页

作者： Yetai Cheng Qingbo Wei Nannan Wang Zhangwen Ye yanbin zhao Qiongyao Wang Depeng Chu Lingxing Zan Feng Fu Yucheng Liu Key Laboratory of Chemical Reaction Engineering of Shaanxi Province College of Chemistry&Chemical EngineeringYan’an UniversityYan’an 716000China Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy TechnologyInstitute for Advanced Energy MaterialsSchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710062China

Defect passivation is one of the important strategies to improve the efficiency and stability of perovskite solar *** this work,2,6-di-tert-butyl-4-methylphenol(BHT)as antioxidant was introduced into the perovskite precursor solution to improve the quality of the prepared perovskite films,so that these films performed a larger and uniform grain ***,the-OH functional group in BHT interacts with I-,thus reducing the density of defect states and inhibiting the non-radiative *** presence of hydrophobic groups in BHT protects the film from moisture erosion and improves the long-term stability of PSCs *** maximum photoelectric conversion efficiency of the constructed ITO/SnO_(2)/BHTMAPbI_(3)/Carbon device is 16.88%,and the unpackaged cell maintains the initial efficiency of 99.3%after698 h of storage under the environmental condition of 30%*** work provides an efficient approach to improve the performance of printable hole transport layer-free carbon electrode perovskite solar cells.

关键词： Perovskite solar cells Additive engineering Defect passivation Long-term stability Carbon electrode

Endogenous hormones matters in evaluation of endocrine disruptive effects mediated by nuclear receptors

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Eco-Environment & Health 2024年第3期3卷 257-259页

作者： yanbin zhao Karl Fent State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants School of Environmental Science and EngineeringShanghai Jiao Tong University800 Dongchuan RoadShanghai 200240China ETH Zürich Institute of Biogeochemistry and Pollution DynamicsDepartment of Environmental Systems ScienceCH-8092 ZürichSwitzerland

In recent decades,endocrine-disrupting chemicals(EDCs)have emerged as a prominent focus on environmental science and ***,extensive use of in vitro bioassays founded on ligand-receptor binding has facilitated the identification of a substantial number of potential EDCs,particularly agonists/antagonists of nuclear receptors such as estrogen receptors and thyroid hormone receptors[1].These datasets have significantly augmented the discovery of potential ***,when subjecting these compounds to in vivo exposures,spanning from teleost fish to rodents and humans,observations frequently deviated from in vitro anticipation[2,3].This discrepancy and the apparent lack of prognostic value are shared with the difficulties of in vitro-in vivo extrapolations in classical toxicological *** the utility of in vitro identification is without doubt,its potential EDCs require in vivo *** resulting complexity in EDCs outcomes,nevertheless,has not yet received adequate attention and thorough interpretation.

关键词： doubt confirmation identification

Adjacent segment disease after anterior cervical decompression and fusion： analysis of risk factors on X-ray and magnetic resonance imaging

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Chinese Medical Journal 2014年第22期127卷 3867-3870页

作者： zhao yanbin Sun Yu Zhou Feifei Wang Shaobo Zhang Fengshan Pan Shengfa Department of Orthopaedic Surgery Peking University Third Hospital Beijing 100191 China

Background Adjacent segment disease （ASD） is common after cervical *** aim of this study was to evaluate the risk factors for ASD on X-ray and magnetic resonance imaging （MRI）.Methods Patients included in this study had received revision surgeries after developing symptomatic ASD following anterior decompression and fusion.A control group that had not developed ASD was matched 1：1 by follow-up time and fusion ***-to-disc distances （PDDs）,developmental cervical canal stenosis on X-ray,cervical disc degeneration grading,and cervical disc bulge impingements on preoperative MRI were measured and compared between the ASD group and the control *** Thirty-four patients with complete radiographic data were included in the ASD *** causative segments of ASD included nine cases of C3-4,18 cases of C4-5,three cases of C5-6,and four cases of *** ASD occurred at the upper adjacent segments in 26 patients and at the lower adjacent segments in eight *** distributions were similar between the ASD group and the control *** cervical canal stenosis was a risk factor for ASD,with an odd ratio value of *** cervical disc degenerations on MRI were similar between the ASD group and the control *** the upper-level ASD group,the disc bulge impingement was （19.7±9.7）％,which was significantly higher than that of the control group of （11.8±4.8）％.Conclusions ASD was more likely to develop above the index level of *** cervical canal stenosis and greater disc bulge impingement may be risk factors for the development of ASD.

关键词： cervical fusion adjacent segment disease magnetic resonance imaging

The Creative Application of DIY Manufacturing Technology in Remote Sensing Satellite

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Aerospace China 2016年第2期17卷 17-26页

作者： HOU Jianwen zhao yanbin ZHOU Yingqing DU Xuan LI Zhenning Shanghai Academy of Spaceflight Technology Shanghai 201109 Shanghai Institute of Satellite Engineering Shanghai 200240

Based on the concept of DIY, this paper demonstrates the essential potential of DIY manufacturing technology in the application of space equipment. According to the future space technology development trends, the future spacecraft DIY idea and system standard are proposed. The standardized, modularized and serialized micro/nano-satellite DIY products are introduced. Finally, a commercial remote sensing satellite system based on spacecraft DIY is designed and its application prospect is analyzed.

关键词： DIY Commercial space Remote sensing satellite