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Adversarial attacks and defenses for digital communication signals identification

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Digital Communications and Networks 2024年第3期10卷 756-764页

作者： Qiao Tian Sicheng Zhang Shiwen Mao yun lin College of Computer Science and Technology Harbin Engineering UniversityHarbin150001China College of Information and Communication Engineering Harbin Engineering UniversityHarbin150000China Department of Electrical and Computer Engineering Auburn UniversityAuburnAL36849USA

As modern communication technology advances apace,the digital communication signals identification plays an important role in cognitive radio networks,the communication monitoring and management *** has become a promising solution to this problem due to its powerful modeling capability,which has become a consensus in academia and ***,because of the data-dependence and inexplicability of AI models and the openness of electromagnetic space,the physical layer digital communication signals identification model is threatened by adversarial *** examples pose a common threat to AI models,where well-designed and slight perturbations added to input data can cause wrong ***,the security of AI models for the digital communication signals identification is the premise of its efficient and credible *** this paper,we first launch adversarial attacks on the end-to-end AI model for automatic modulation classifi-cation,and then we explain and present three defense mechanisms based on the adversarial *** we present more detailed adversarial indicators to evaluate attack and defense ***,a demonstration verification system is developed to show that the adversarial attack is a real threat to the digital communication signals identification model,which should be paid more attention in future research.

关键词： Digital communication signals identification AI model Adversarial attacks Adversarial defenses Adversarial indicators

Convenient synthesis of β-allenic α-difluoromethylenephosphonic acid monoesters:Potential synthons for cyclic phosphate mimics

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Chinese Chemical Letters 2007年第1期18卷 33-36页

作者： yun lin Jin Tao Liu Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China College of Chemistry and Environment Science Nanjing Normal University Nanjing 210097 China

β-Allenic α-difluoromethylenephosphonic acid monoesters were prepared under mild conditions for the first time by hydrolyzing the corresponding diethyl phosphonates in aqueous sodium hydroxide solution.

关键词： β-Allenic α-difluoromethylenephosphonic acid monoester Hydrolysis Phosphate mimic

On the Period Function of a Class of Reversible Quadratic Centers

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Acta Mathematica Sinica,English Series 2011年第5期27卷 905-918页

作者： Hai Hua LIANG yun lin ZHAO Department of Mathematics Sun Yat-Sen University Guangzhou 510275 P. R. China Department of Computer Science Guangdong Polytechnic Normal University Guangzhou 510665 P. R. China

Abstract This paper is devoted to the study of the period function for a class of reversible quadratic system x=-2xy,y=k-1-2kx＋（k＋1）x^2-1/2y^*** determine the monotonicity of the period function for each k ∈ R. ... 详细信息

关键词： Monotonicity period function abelian integrals Picard Fuchs equations

Alternative Splicing and Differential Expression of Two Transcripts of Nicotine Adenine Dinucleotide Phosphate Oxidase B Gene from Zea mays

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Journal of Integrative Plant Biology 2009年第3期51卷 287-298页

作者： Fan lin yun Zhang Ming-Yi Jiang College of Life Sciences Nanjing Agricultural University Nanjing 210095 China

With the exception of rice, little is known about the existence of respiratory burst oxidase homolog （rboh） gene in cereals. The present study reports the cloning and analysis of a novel rboh gene, termed ZmrbohB, from maize （Zea mays L.）. The full-length cDNA of ZmrbohB encodes a 942 amino acid protein containing all of the respiratory burst oxidase homolog catalytically critical motifs. Alternative splicing of ZmrbohB has generated two transcript isoforms, ZmrbohB-α and -β. Spliced transcript ZmrbohB-β retains an unspliced intron 11 that carries a premature termination codon and probably leads to nonsense-mediated mRNA decay. Expression analysis showed that two splice isoforms were differentially expressed in various tissues and at different developmental stages, and the major product was ZmrbohB-e. The transcripts of ZmrbohB-α accumulated markedly when the maize seedlings were subjected to various abiotic stimuli, such as wounding, cold （4℃）, heat （40℃）, UV and salinity stress. In addition, several abiotic stimuli also affected the alternative splicing pattern of ZmrbohB except wounding. These results provide new insight into roles in the expression regulation of plant rboh genes and suggest that ZrnrbohB gene may play a role in response to environmental stresses.

关键词： abiotic stress alternative splicing respiratory burst oxidase homolog Zea mays.

Internally Reuse Waste： Catalytic Asymmetric One-Pot Strecker Reaction of Fluoroalkyl Ketones, Anilines and TMSCN by Sequential Catalysis

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Chinese Journal of Chemistry 2018年第4期36卷 321-328页

作者： yun-lin Liu Xiao-Ping Yin Jian Zhou Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China Current address: School of Chemistry and Chemical Engineering Guangzhou University Guangzhou Guangdong 510006 China Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development East China Normal University Shanghai 200062 China

We report a highly enantioselective one-pot facile synthesis of fluorinated Cα-tetrasubstituted amino nitriles from α-fluoroalkyl α-aryl keo tones, anilines, and TMSCN through a sequential p-TsOH catalyzed ketimine formation and chiral bifunctional tertiary amine mediated asymmetric Strecker reaction. This one-pot approach has two important advantages. First, it greatly improves the overall yield of the synthesis of chiral Cα-tetrasubstituted fluorinated aminonitriles from ketones, because the purification of a-fluorinated ketimines by column chromatography suffers from great yield loss. Second, it represents the first example of asymmetric tandem reactions that can simultaneously reuse the by-product and catalyst from the upstream step as a promoter and an additive to improve the reactivity and enantioselectivity of the subsequent catalytic enantioselective reaction, respectively. It could utilize the by-product H_2O generated in-situ from the ketimine formation step to activate TMSCN to form HCN, and concurrently reuse the remaining p-TsOH acid as an additive to improve enantioselectivity.

关键词： one-pot enantioselective Strecker reaction fluorine α-aminonitrile

Weighted Sparse Image Classification Based on Low Rank Representation

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Computers, Materials & Continua 2018年第7期56卷 91-105页

作者： Qidi Wu Yibing Li yun lin Ruolin Zhou College of Information and Communication Engineering Harbin Engineering UniversityHarbin150001China Department of Electrical and Computer Engineering Western New England UniversityUSA

The conventional sparse representation-based image classification usually codes the samples independently,which will ignore the correlation information existed in the ***,if we can explore the correlation information hidden in the data,the classification result will be improved *** this end,in this paper,a novel weighted supervised spare coding method is proposed to address the image classification *** proposed method firstly explores the structural information sufficiently hidden in the data based on the low rank *** then,it introduced the extracted structural information to a novel weighted sparse representation model to code the samples in a supervised *** results show that the proposed method is superiority to many conventional image classification methods.

关键词： Image classification sparse representation low-rank representation numerical optimization.

SINGLET OXYGEN QUANTUM YIELDS OF PORPHYRIN-BASED PHOTOSENSITIZERS FOR PHOTODYNAMIC THERAPY

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Journal of Innovative Optical Health Sciences 2008年第1期1卷 141-149页

作者： BU-HONG LI LI-SHENG lin HUI-yun lin SHU-SEN XIE Key Laboratory of OptoElectronic Science and Technology for Medicine Fujian Normal University Ministry of EducationFuzhou Fujian 350007China

The major cytotoxic agent with most current photosensitizers used in photodynamic therapy(PDT)is widely believed to be singlet oxygen(^(1)O_(2)).Determination of the ^(1)O_(2) quantum yields for porphyrin-based photosensitizers,including hematoporphyrin derivative(HiPorfin),hematoporphyrin monomethyl ether(HMME)and photocarcinorin(PsD-007)in air-saturated dimethylformamide(DMF)solutions were performed by the direct measurement of their near-infrared *** addition,^(1)O_(2) quencher sodium azide was employed to confirm the ^(1)O_(2) generation from the investigated *** maximal ^(1)O_(2) luminescence occurs at about 1280 nm with full width at half maximum of 30 *** ^(1)O_(2) quantum yields were found to be 0.61±0.03,0.60±0.02 and 0.59±0.03 for HiPorfin,HMME and PsD-007,*** results provide that these porphyrin-based photosensitizers produce ^(1)O_(2) under irradiation,which is of significance for the study of their photodynamic action in PDT.

关键词： Photodynamic therapy porphyrin singlet oxygen luminescence quantum yield

Soil moisture change estimation using In SAR coherence variations with preliminary laboratory measurements

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Science China(Information Sciences) 2017年第2期60卷 202-204页

作者： Qiang YIN Wen HONG yun lin Yang LI College of Information Science and Technology Beijing University of Chemical Technology National Key Laboratory of Science and Technology on Microwave Imaging Institute of ElectronicsChinese Academy of Sciences Beijing Institute of Electronic System Engineering

Dear editor,The repeat pass InS AR(interferometric synthetic aperture radar)technique has been successfully applied in topography mapping and terrain motion monitoring by means of Differential InS AR(DInS AR)for many *** are several factors could influence the observed interferometric coherence,including the system spatial decorrelation,the additive noise,and the scene decorrelation which takes place between the two *** those decorrelation sources of the

关键词： SAR soil Soil moisture change estimation using In SAR coherence variations with preliminary laboratory measurements

Semi-Supervised Learning with Generative Adversarial Networks on Digital Signal Modulation Classification

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Computers, Materials & Continua 2018年第5期55卷 243-254页

作者： Ya Tu yun lin Jin Wang Jeong-Uk Kim College of Information and Communication Engineering Harbin Engineering UniversityHarbin 150001China School of Computer&Communication Engineering Changsha University of Science&TechnologyChangsha 410114China School of Information Engineering Yangzhou UniversityYangzhou 225009China Department of Energy Grid Sangmyung UniversitySeoulKorea

Deep Learning(DL)is such a powerful tool that we have seen tremendous success in areas such as Computer Vision,Speech Recognition,and Natural Language *** Automated Modulation Classification(AMC)is an important part in Cognitive Radio Networks,we try to explore its potential in solving signal modulation recognition *** cannot be overlooked that DL model is a complex model,thus making them prone to *** model requires many training data to combat with over-fitting,but adding high quality labels to training data manually is not always cheap and accessible,especially in real-time system,which may counter unprecedented data in ***-supervised Learning is a way to exploit unlabeled data effectively to reduce over-fitting in *** this paper,we extend Generative Adversarial Networks(GANs)to the semi-supervised learning will show it is a method can be used to create a more dataefficient classifier.

关键词： Deep Learning automated modulation classification semi-supervised learning generative adversarial networks