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Amended Kalman Filter for Maneuvering Target Tracking

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Chinese Journal of Electronics 2016年第6期25卷 1166-1171页

作者： YANG Yongjian FAN Xiaoguang ZHUO Zhenfu WANG shengda NAN Jianguo xu Yunshan Aeronautics and Astronautics Engineering College Air Force Engineering University

The conventional Kalman filter(KF) which uses the current measurement to estimate the current state is a posterior estimation. KF is identified as the optimal estimation in linear models with Gaussian noise. However,the performance of KF with incomplete information may be degraded or diverged. In order to improve the performance of KF, an Amended KF(AKF) is proposed by using more posterior measurements. The principle, derivation and recursive process of AKF are presented. The differences among Kalman smoother, adaptive fading method and AKF are analyzed. The simulation results of target tracking with different covariance of motion model indicate the high precision and robustness of AKF.

关键词： Kalman filter(KF) Incomplete information Amended KF(AKF) Maneuvering target tracking

Assessing the active-passive approach at variant incidence angles for microwave brightness temperature downscaling

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International Journal of Digital Earth 2021年第10期14卷 1273-1293页

作者： Peng Guo Tianjie Zhao Jiancheng Shi Hongxin xu Xiuwei Li shengda Niu College of Information Science and Engineering Shandong Agricultural UniversityTaianPeople’s Republic of China State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of SciencesBeijingPeople’s Republic of China National Space Science Center Chinese Academy of SciencesBeijingPeople’s Republic of China Shanghai Academy of Spaceflight Technology ShanghaiPeople’s Republic of China

The Terrestrial Water Resources Satellite(TWRS)campaign is a planned Chinese candidate satellite mission,and a one-dimensional synthetic aperture technology will be used,resulting in variant incidence angles for collecting synchronous active-passive observations at L-band,which would make brightness temperature(T_(b))downscaling especially challenging when aiming to improve the spatial resolution of soil moisture *** this study,two active-passive T_(b) downscaling algorithms,the time-series regression(TSR)and spectral analysis(SA)algorithms,are assessed comprehensively based on airborne experimental *** results with data collected during the Soil Moisture Experiment 2002(SMEX02)showed that both approaches could provide a reliable downscaled T_(b) at the same incidence *** on the ground and airborne active-passive observations under variant incidence angles from the Soil Moisture Experiment in the Luan River(SMELR)it can be shown that the linear relationship between T_(b) andσis still robust under the case of variant incidence angles,and T_(b)(both h-and v-pol)is better correlated toσvv for most cases thanσ*** downscaling approaches can be applied to active-passive observations under varying incidence ***,SA method performed better than the TSR method according to the lower RMSE values and higher correlation.

关键词： Downscaling brightness temperature active-passive variant incidence angle SMELR

Covalent organic hollow nanospheres constructed by using AIEactive units for nitrophenol explosives detection

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Science China Chemistry 2020年第4期63卷 497-503页

作者： Shan Jiang shengda Liu Lingchen Meng Qingkai Qi Lipeng Wang Bin xu Junqiu Liu Wenjing Tian State Key Laboratory of Supramolecular Structure and Materials Jilin UniversityChangchun 130000China

The development of conjugated nanomaterials with high sensitivity and super-amplified quenching effect for the detection of nitrophenol explosives is still a great challenge. Herein, we developed conjugated hollow nanospheres constructed by using aggregation-induced emission(AIE) active 1,3,5-tris(4-formyl-phenyl)benzene(TFPB). The high emission hollow nanospheres with uniform size and admirable dispersiveness exhibited obvious fluorescence quenching response with the addition of nitrophenol explosives owing to the photoinduced electron transfer(PET) from the hollow nanospheres to nitrophenol explosives. The Stern-Volmer constants of hollow spheres for 2,4,6-trinitrophenol(TNP), 4-nitrophenol(NP) and 2,4-dinitrophenol(DNP) can reach 9.67×10^5, 3.14×10^5 and 4.8×10^4 M-1, respectively. Furthermore, the handy test paper coated with hollow nanospheres was prepared and showed a good response toward TNP solutions and vapor. The study provides a novel strategy to construct AIE-active conjugated hollow nanospheres for efficient nitrophenol explosives sensing.

关键词： aggregation-induced emission covalent organic nanospheres nitrophenol explosives detection fluorescence quenching

Regulation of artificial supramolecular transmembrane signal transduction by selenium-containing artificial enzyme receptors

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Nano Research 2023年第1期16卷 964-969页

作者： shengda Liu Yunpeng Xing Tengfei Yan Yijia Li Ruizhen Tian Jinxing Hou Jiayun xu Tingting Wang Junqiu Liu Key Laboratory of Organosilicon Chemistry and Material Technology Ministry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou 311121China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China

Signal transduction across lipid bilayers is of profound importance in biological *** biological systems,natural enzymes mediate biochemical effects by binding to substrates and facilitating the conversion of external signals into physiological *** transmission of biological signals from one enzyme to the next promotes signal transduction with feedforward and feedback *** these processes in an artificial system provides potential applications and offers a new way to understand fundamental biological processes in ***,the design of artificial signal transduction systems regulated by artificial enzyme receptors in a predictable and intelligent manner remains a ***,benefiting from the polarity-regulated characteristics of Se-containing compounds with artificial glutathione peroxidase(GPx)activity,we constructed an artificial transmembrane signaling receptor with a Se-containing GPx-like recognition head group,a membrane-anchoring group,and a pre-enzyme end *** artificial supramolecular signal transduction system containing such signal transduction receptors extends the range of signaling systems based on enzyme regulation,which provides a new way to study natural signal processes in cells and artificially regulated biological processes.

关键词： signal transduction supramolecular introduction selenium-containing glutathione peroxidase(GPx)-like receptors artificial enzyme

Construction of Redox Responsive Vesicles Based on a Supra-Amphiphile for Enzyme Confinement

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Chinese Journal of Chemistry 2017年第6期35卷 871-875页

作者： Tiezheng Pan Huixin Zou Hongcheng Sun Yao Liu shengda Liu Quan Luo Zeyuan Dong Jiayun xu Junqiu Liu State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun Jilin 130012 China

Redox responsive vesicles were constructed based on guest interaction between fl-cyclodextrin and a ferrocene self-assembly of a supra-amphiphile built by the host- derivative. The structure and destruction-reconstruction reversibility of the ＂smart＂ vesicles were clearly characterized by electron microscopy and dynamic light scattering. Notably, these vesicles were proved to be capable of controlled release function and bringing protease resistance to the enzyme, showing great biocompatibility and promising applications.

关键词： redox responsive host-guest systems vesicles supra-amphiphile glutathione S-transferase

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虚拟现实技术在智能插秧机中的应用

农机化研究 2024年第5期46卷 201-205页

作者：徐亚楠郑州升达经贸管理学院郑州451191

为进一步提升我国智能插秧机的作业效率与插植准确度,基于虚拟现实技术理念针对其结构设计及作业控制展开研究。在充分理解智能插秧机的结构组成与作业要求实现的基础上,运用VR控制理念,建立VR可视化设计模型平台,融入北斗定位及VR矩阵... 详细信息

为进一步提升我国智能插秧机的作业效率与插植准确度,基于虚拟现实技术理念针对其结构设计及作业控制展开研究。在充分理解智能插秧机的结构组成与作业要求实现的基础上,运用VR控制理念,建立VR可视化设计模型平台,融入北斗定位及VR矩阵元素等核心技术,形成完整的智能插秧机作业系统,并展开有效性的插秧作业试验。试验结果表明:将虚拟现实技术应用于智能插秧机,实现了插秧作业性能的整体提升,在VR可视化的监测与调偏功能运用下,控制准确率相对提高了8.83%,合格率相对提高了6.76%,秧苗利用率亦得到明显提升,对于插秧装备的无人化和智能化及多范围、多地区推广起到了积极作用,可为类似农机装备的优化创新提供很好的思路与方向。

关键词：智能插秧机虚拟现实可视化设计控制准确率插秧合格率

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法治政府建设中民法典适用研究

黄河科技学院学报 2024年第4期26卷 83-91页

作者：徐静郑州升达经贸管理学院文法学院河南郑州451191

民法典以其基本法律的属性对我国法治政府建设起着规范作用。法治政府在内涵建设上需要秉持人民至上的价值理念、权利保障的基本要求、依法行政的运行规则、公私协同的治理模式。民法典是法治政府建设的基本法律依据,是正确处理政府与... 详细信息

民法典以其基本法律的属性对我国法治政府建设起着规范作用。法治政府在内涵建设上需要秉持人民至上的价值理念、权利保障的基本要求、依法行政的运行规则、公私协同的治理模式。民法典是法治政府建设的基本法律依据,是正确处理政府与市场、公法与私法的关系的标尺。它强化了法治政府建设的价值目标,推动着良法善治的政府治理实现。当前,法治政府建设对民法典的适用需要进一步解决民事主体权利保护,公权与私权、政府与市场的协调融合,以及社会公序良俗维护等方面的问题。因此,法治政府建设需要以继续完善立法、规范行政行为、遵从民法优先的冲突解决机制等方面作为民法典适用的关键。

关键词：法治政府建设民法典适用问题适用对策

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固态电池技术的产业现状、投资潜力与前景

电池 2024年第5期54卷 715-718页

作者：许广庆万强郑州升达经贸管理学院管理学院河南郑州451191 中国社会科学院工业经济研究所北京100732

评估固态电池技术的经济性,可揭示该技术在产业发展中的潜力与前景。对当前固态电池产业链进行分析,结合市场规模、技术成熟度等因素,提出对该技术投资的潜在价值评估。固态电池技术具备广阔的应用前景,特别是在新能源汽车和储能领域。... 详细信息

评估固态电池技术的经济性,可揭示该技术在产业发展中的潜力与前景。对当前固态电池产业链进行分析,结合市场规模、技术成熟度等因素,提出对该技术投资的潜在价值评估。固态电池技术具备广阔的应用前景,特别是在新能源汽车和储能领域。固态电池技术在提升能源利用效率、减少污染排放等方面,具有重要的理论贡献和实际应用价值,对推动清洁能源技术的发展具有重要意义。

关键词：固态电池技术经济性评估产业现状投资潜力前景

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绿色施工技术在某建筑工程基坑桩锚支护中的应用

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上海建材 2024年第2期 32-34页

作者：徐婕李冲山东圣大建设集团有限公司山东济宁272000

随着我国“双碳”战略持续发展,低碳绿色环保观念渗透到社会各个领域中,“绿色建筑”成为建筑领域的发展目标,促使绿色施工技术积极创新。为此,本文以某工程为例,对建筑工程基坑桩锚支护项目中绿色施工相关内容进行细致阐述,为建筑工程... 详细信息

随着我国“双碳”战略持续发展,低碳绿色环保观念渗透到社会各个领域中,“绿色建筑”成为建筑领域的发展目标,促使绿色施工技术积极创新。为此,本文以某工程为例,对建筑工程基坑桩锚支护项目中绿色施工相关内容进行细致阐述,为建筑工程绿色化建设提供理论支撑。

关键词：绿色施工技术建筑工程基坑桩锚支护