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A Novel Edge Computing Based Area Navigation Scheme

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Computers, Materials & Continua 2020年第12期65卷 2385-2396页

作者： Jianzhong Qi qingping song Jim Feng School of Information Science and Technology North China University of TechnologyBeijing100144China School of Computer and Communication Engineering University of Science and Technology BeijingBeijing100083China Science and Technology on Information Systems Engineering Laboratory Beijing Institute of Control and Electronic TechnologyBeijing100038China Amphenol Global Interconnect Systems San JoseCA 95131USA

The area navigation system,discussed in this paper,is composed of ground responders and a navigation terminal and can position a high-velocity aircraft and measure its *** navigation system is silent at ordinary *** sends out a request signal when positioning is required for an aircraft,and then the ground responders send a signal for resolving the *** the direct sequence spread spectrum and frequency hopping,the concealed communication mode is used in the whole communication process,with short communication pulses as much as possible,so the system has strong concealment and anti-interference *** the transmission delay is apparent in the response communication mode,there is a big error where the common navigation algorithm is used for the positioning and velocity measurement of a high-velocity *** this paper,a new algorithm is proposed,which can eliminate the influence of response communication delay on the positioning of a high-velocity moving target to realize the precise positioning and velocity measurement of a high-velocity aircraft.

关键词： Navigation pseudo-noise code ranging positioning velocity measurement edge computing

A Carrier Synchronization Algorithm for AutonomousRadio Receiver in Deep Space

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空间科学学报 2015年第3期35卷 343-349页

作者： song qingping LIU Rongke School of Electronic and Information Engineering Beihang University

The carrier synchronization algorithm of the autonomous radio for deep space is *** the signal modulation is unknown,this paper improves the existing universal carrier synchronization loop for multiple modulations,expands the frequency tracking range of the loop,proposes a Tong detection-based M-ary Phase Shift Keying(M-PSK)signal locking detection algorithm to rapidly and effectively determine whether the current phase discrimination mode matches the modulation mode,so as to independently choose whether to switch the phase discrimination *** theoretical analysis and comparison,it is described that the total detection probability of the algorithm proposed in this paper is significantly higher than the probability of single lock *** results show that the algorithm has high detection probabiUty and low computational complexity at a low signal to noise ratio.

关键词： Deep space communication Autonomous radio Carrier synchronization Detection strategy Detection probability

Synthesis of Poly(acrylic acid)-Grafted Carboxymethyl Cellulose for Efficient Removal of Copper Ions

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Journal of Renewable Materials 2019年第12期7卷 1403-1414页

作者： Ying Lin Yihua Cao qingping song Jiangang Gao Puyou Jia Hamed Alsulami Marwan Amin Kutbi College of Biological and Chemical Engineering Anhui Polytechnic UniversityWuhu241000China Institute of Chemical Industry of Forest Products Chinese Academy of Forestry(CAF)Nanjing210042China Department of Mathematics Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia.

Biocompatible and high content grafted carboxymethyl cellulose-g-poly(acrylic acid)powder was successfully synthesized in an aqueous system,and used as adsorbents for the removal of Cu(II)in aqueous *** copolymer was characterized by FT-IR and SEM *** copolymerization introduced a large number of carboxyl groups in the polymer and caused the micro-surface of the material to be *** fundamental adsorption behaviors of the material were *** adsorption kinetics was well fitted with pseudo-second order equation,while the adsorption isotherm preferred to be described the Langmuir *** maximum adsorption capacity obtained from the Langmuir model was 154.32 mg/g,indicating that the adsorption capacity of carboxymethyl cellulose was improved remarkably after grafting poly(acrylic acid).Moreover,Fourier transform infrared spectroscopy(FT-IR)has been used to investigate the adsorption mechanisms at molecular levels,which revealed that carboxyl groups are facile to form bidentate carboxylates with metal ***,this environment friendly copolymer will be a promising candidate for application in removal of heavy metal ions.

关键词： Carboxymethyl cellulose-g-acrylic acid grafting copolymerization adsorption copper ions

Photo-induced fusion of monodisperse polymer microspheres:A novel strategy for constructing topological microsphere clusters with improved stability

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Aggregate 2023年第5期4卷 152-160页

作者： Zixiang He Su Shen Gong Zhang Tengfei Miao Xiaoxiao Cheng Zhao Wang qingping song Wei Zhang State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Engineering Laboratory of Novel Functional Polymeric MaterialsSuzhou Key Laboratory of Macromolecular Design and Precision SynthesisCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhouP.R.China School of Chemical and Environmental Engineering Anhui Polytechnic UniversityWuhuP.R.China College of Physics Optoelectronics and Energy Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow UniversitySuzhouP.R.China

The preparation of monodisperse azobenzene(Azo)polymer microspheres by dispersion polymerization was *** photo-induced fusion of Azo polymer microspheres was successfully achieved during the process of reversible trans-cistrans photoisomerization of Azo units,and induced various unique“microsphere molecular”clusters or“microsphere polymers”.Encouraged by this interesting phenomenon,microsphere clusters of different topological structures were stabilized by the in situ acetal cross-linking *** photo-induced fusion polymerization of monodisperse polymer microspheres provides a new strategy for designing photo-responsive clusters and allows for control over the mechanical properties of microspheres with high spatiotemporal resolution.

关键词： azobenzene dispersion polymerization fusion polymerization microsphere clusters polymer microspheres

Chiral polymer micro/nano-objects: evolving preparation strategies in heterogeneous polymerization

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Science China Chemistry 2024年

作者： Dongdong Liu Jinyan Zhao Xi Zhao Shengyu Shi Shi Li Yan Wang qingping song Xiaoxiao Cheng Wei Zhang School of Chemical and Environmental Engineering Anhui Polytechnic University State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis College of Chemistry Chemical Engineering and Materials Science Soochow University

Chirality is a fundamental geometric property prevalent in nature, spanning from biomolecules to macroscopic structures. This review explores the rapidly evolving field of chiral polymer micro/nano-objects, which are increasingly applied in chiral recognition, asymmetric catalysis, and circularly polarized luminescence. Conventional heterogeneous polymerization techniques—such as emulsion, precipitation, dispersion, and suspension polymerizations—have emerged as powerful methods for preparing these chiral micro/nano-objects. Additionally, the polymerization-induced chiral self-assembly strategy based on living heterogeneous polymerization has attracted attention for its efficiency and versatility in producing well-defined chiral polymer assemblies with tunable morphologies. This review summarizes recent advances in these preparation strategies, emphasizing the importance of heterogeneous polymerization in developing chiral polymer materials with enhanced optical and functional properties.

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一种用于深空自主无线电的码速率估计算法

航空学报 2015年第7期36卷 2301-2309页

作者：宋青平刘荣科北京航空航天大学电子信息工程学院北京100191

针对深空自主无线电的码速率盲估计问题,在码元起始位置未知的情况下,通过对估计误差的理论分析,提出一种改进的基于分离符号矩估计(SSME)的码速率估计算法,设计分区估计信噪比(SNR)并进行比较选大的方法,以保证码速率估计的精度。同时... 详细信息

针对深空自主无线电的码速率盲估计问题,在码元起始位置未知的情况下,通过对估计误差的理论分析,提出一种改进的基于分离符号矩估计(SSME)的码速率估计算法,设计分区估计信噪比(SNR)并进行比较选大的方法,以保证码速率估计的精度。同时对该算法的计算复杂度进行定量分析,并与传统单次延迟相乘法、改进的多次累加延迟相乘法进行比较。仿真结果表明,本文算法能够有效完成低SNR条件下的码速率估计,其误估计概率明显优于单次延迟相乘法,与多次累加延迟相乘法相当,但计算复杂度不到多次累加延迟相乘法的10%。

关键词：深空通信自主无线电码速率盲估计分离符号矩估计计算复杂度

一个具有国企并且私企数目可变的异质性预期蛛网模型

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中国管理科学 2024年第3期32卷 40-47页

作者：宋青平杨哲上海财经大学经济学院上海200433

受经典的异质性预期演化模型启发,为研究中国问题,本文结合实际,构建了一个具有国企并且私企数目可变的异质性预期蛛网模型。研究发现,市场均衡状态受私企策略转换强度及生产技术水平影响。与此同时,国企在稳定市场方面发挥着不可替代... 详细信息

受经典的异质性预期演化模型启发,为研究中国问题,本文结合实际,构建了一个具有国企并且私企数目可变的异质性预期蛛网模型。研究发现,市场均衡状态受私企策略转换强度及生产技术水平影响。与此同时,国企在稳定市场方面发挥着不可替代的作用。本文研究结果对分析市场稳定状态、国企存在的必要性等具有现实意义。

关键词：异质性预期市场出入蛛网模型稳定性

N-羧甲基壳聚糖的制备及其对重金属离子吸附研究

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离子交换与吸附 2010年第6期26卷 559-564页

作者：宋庆平王崇侠高建纲安徽工程大学生物与化学工程学院

采用氯乙酸和壳聚糖为原料制备了N-羧甲基壳聚糖,并研究了其对重金属离子Pb2+、Co2+、Ni2+、Cd2+的吸附行为。采用了XRD、FT-IR、1H-NMR对N-羧甲基壳聚糖进行了表征,对N-羧甲基壳聚糖的4种金属离子配合物进行了FT-IR表征。结果表明,N-... 详细信息

采用氯乙酸和壳聚糖为原料制备了N-羧甲基壳聚糖,并研究了其对重金属离子Pb2+、Co2+、Ni2+、Cd2+的吸附行为。采用了XRD、FT-IR、1H-NMR对N-羧甲基壳聚糖进行了表征,对N-羧甲基壳聚糖的4种金属离子配合物进行了FT-IR表征。结果表明,N-羧甲基壳聚糖对Pb2+、Co2+、Ni2+、Cd2+的吸附能力优于壳聚糖,分子中羧基是主要的螯合基团。

关键词：壳聚糖 N-羧甲基壳聚糖吸附重金属离子

NFC技术在物流业隐私保护和移动支付中的应用研究

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无线互联科技 2016年第16期13卷 145-146页

作者：宋清平对外经济贸易大学信息学院北京100029

文章主要研究近距离无线通讯(Near Field Communication,NFC)技术在物流隐私保护和移动支付的应用。首先针对物流业隐私保护的问题研究出的加密贴进行介绍,加密贴的本质为基于NFC技术的非接触式智能卡技术基于先进的智能芯片,可将用户... 详细信息

文章主要研究近距离无线通讯(Near Field Communication,NFC)技术在物流隐私保护和移动支付的应用。首先针对物流业隐私保护的问题研究出的加密贴进行介绍,加密贴的本质为基于NFC技术的非接触式智能卡技术基于先进的智能芯片,可将用户信息储存在加密贴中以保护隐私;然后本文将对NFC关键技术进行研究分析,说明技术应用的可行性;最后对利用NFC技术进行移动支付的模式进行介绍,利用NFC技术的大好前景更好地为物流业发展服务。

关键词： NFC技术物流隐私保护移动支付