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Discourse Analysis of the Belt and Road Initiative From the Perspective of Central Asian Countries: A Case Study of the Republic of Kazakhstan
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作者 CHEN Jia LIU Shumin +1 位作者 FU Da’an SHAO Di 《Journalism and Mass Communication》 2024年第2期96-100,共5页
This study employs Norman Fairclough’s Critical Discourse Analysis(CDA)three-dimensional model,using the Republic of Kazakhstan as a case study,to delve into the discourse construction of China’s Belt and Road Initi... This study employs Norman Fairclough’s Critical Discourse Analysis(CDA)three-dimensional model,using the Republic of Kazakhstan as a case study,to delve into the discourse construction of China’s Belt and Road Initiative(BRI)in Central Asian countries.Through detailed analysis of policy documents,media reports,and public discussions in Central Asian countries,this paper reveals how the BRI constructs specific social practices,discourse events,and textual meanings within these nations.The findings indicate that through this global development strategy,China has not only strengthened its economic ties with Central Asian countries but has also exerted profound influences on political,cultural,and social levels. 展开更多
关键词 Belt and Road initiative Central Asian countries discourse analysis Norman Fairclough’s three-dimensional model
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扩展目标跟踪Student’s t逆Wishart平滑算法
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作者 陈辉 张丁丁 +1 位作者 连峰 韩崇昭 《电子与信息学报》 EI CAS CSCD 北大核心 2024年第8期3353-3362,共10页
脉冲干扰和离群量测信息等因素通常会导致异常的厚尾噪声,这使得以高斯假设为前提的扩展目标跟踪(ETT)估计器的性能急剧降低,针对该问题该文提出一种基于扩展目标随机矩阵模型(RMM)的Student’s t逆Wishart平滑(StIWS)算法。首先,将目... 脉冲干扰和离群量测信息等因素通常会导致异常的厚尾噪声,这使得以高斯假设为前提的扩展目标跟踪(ETT)估计器的性能急剧降低,针对该问题该文提出一种基于扩展目标随机矩阵模型(RMM)的Student’s t逆Wishart平滑(StIWS)算法。首先,将目标的运动状态以及过程噪声和量测噪声建模为Student’s t分布以表征异常噪声对扩展目标概率分布的影响,将目标扩展状态建模为服从逆Wishart分布的随机矩阵。然后,在Student’s t贝叶斯平滑框架下,详细推导了能在扩展目标的多重特征动态演变的过程中有效估计目标状态的StIWS算法。最后,通过扩展目标跟踪的仿真实验结果和真实场景实验结果验证了所提算法的有效性。 展开更多
关键词 扩展目标跟踪 students t平滑 逆Wishart分布 厚尾噪声
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Cross-Cultural Adjustment and Coping:U.S.Students in Taiwan Residents Higher Education
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作者 Wen-Ling Lou 《Sino-US English Teaching》 2024年第1期26-42,共17页
The aim of this study was to investigate the adjustment problems of students from the United States enrolled in universities in the East,specifically in Taiwan,their problems related to cultural adaptation,and the pro... The aim of this study was to investigate the adjustment problems of students from the United States enrolled in universities in the East,specifically in Taiwan,their problems related to cultural adaptation,and the process of adjustment to student life in Taiwan.Under investigation were cultural adjustment and coping skills as these students transitioned from West to East.Qualitative data were collected from interviews with participants and faculty members as well as participant observations.Results indicated that U.S.students found their own ways to acclimate to their new academic setting as well as to social relations,cross-cultural issues,and the linguistic environment in Taiwan to achieve effective adaptation.They made changes in themselves to cope with all situations they encountered.This study provides suggestions for international students abroad in Taiwan,for the Taiwan Residents government,and for universities or colleges in terms of what they should offer to current and future international students. 展开更多
关键词 adjustment cultural adjustment cross-cultural adaptation COPING U.s.students
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Analysis of New Senior English for China Student’s Book 1
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作者 Xia Qian 《语言与文化研究》 2024年第4期128-132,共5页
This article will firstly discuss the context overview of English teaching and learning in China. Under thiscircumstance, a problematic element will be examined of the New Senior English for China Student’s Book 1 an... This article will firstly discuss the context overview of English teaching and learning in China. Under thiscircumstance, a problematic element will be examined of the New Senior English for China Student’s Book 1 and critical appraisal ofhow this element relates to other elements of curriculum development will be analyzed. The recommended changes and demonstrationmechanisms for evaluating the changes are put forward in the last two parts. 展开更多
关键词 New senior English for China students Book 1 Assessment Critical appraisal Curriculum development CHANGEs
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Mobilization Initiatives for Enhancing Secondary School Students’ Enrolment into Vocational and Technical Education Program of Universities for Self Reliance in South East, Nigeria
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作者 Isiwu Edward Chukwuka Nwakpadolu Glory Nma 《Agricultural Sciences》 2015年第7期623-629,共7页
This study focused on identification of mobilization initiatives for enhancing student’s enrolment into Vocational and Technical Education (VTE) programs in Nigerian Universities. Three research questions guided the ... This study focused on identification of mobilization initiatives for enhancing student’s enrolment into Vocational and Technical Education (VTE) programs in Nigerian Universities. Three research questions guided the study while three hypotheses were formulated and tested at 0.05 level of significance. The study was carried out in South East, Nigeria. Population for the study was 1340. Sample for the study was 753 obtained through proportionate (30%) stratified random sampling technique. A 38 item questionnaire was developed and used to collect data. Data obtained were analyzed using mean and standard deviation to answer research questions while t-test statistic was used to test hypotheses at probability of 0.05 level. It was found out by the study that 38 mobilization initiatives could be used to enhance students’ enrolment into Vocational and Technical Education Programs in Nigerian Universities. It was therefore recommended that the identified mobilization initiatives be implemented by relevant stakeholders to enhance secondary school students’ enrollment into VTE programs in Nigerian Universities. 展开更多
关键词 MOBILIZATION initiatives ENROLMENT ENHANCING students Education UNIVERsITIEs
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Construction of Chinese Learning Mode for Overseas Students in Higher Vocational Colleges under the Background of the Belt and Road Initiative
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作者 Zhang Yuanyuan 《教育研究前沿(中英文版)》 2019年第3期132-136,共5页
With the deepening of exchanges between China and other countries,especially the proposal of the Belt and Road Initiative,more and more foreign students come to China to study,putting forward higher requirements for t... With the deepening of exchanges between China and other countries,especially the proposal of the Belt and Road Initiative,more and more foreign students come to China to study,putting forward higher requirements for the education and management of colleges and universities in China.In the process of implementing the strategy of"one belt and one road",language interaction is the basic prerequisite for achieving exchanges and cooperation among different countries.In the face of this situation,by analyzing the existing problems in the training of overseas students in higher vocational colleges in China under the background of"One Belt and One Road"strategy,in this paper,the construction of the Chinese learning mode for overseas students in higher vocational colleges was put forward,hoping to provide help for the training of overseas students and solve the problem of foreign students'language learning. 展开更多
关键词 The Belt and Road initiative Overseas students Chinese Learning Mode
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Research on the Strategies of Improving College Students' Learning Initiative in the Internet Environment
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作者 Xiong Yibing Li Ling Gao Shutai 《Psychology Research》 2016年第9期530-534,共5页
关键词 学习主动性 网络环境 大学生 个性化设计 思维方式 学习方法 公共建设 硬件建设
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Student’s Health Exercise Recognition Tool for E-Learning Education
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作者 Tamara al Shloul Madiha Javeed +4 位作者 Munkhjargal Gochoo Suliman AAlsuhibany Yazeed Yasin Ghadi Ahmad Jalal Jeongmin Park 《Intelligent Automation & Soft Computing》 SCIE 2023年第1期149-161,共13页
Due to the recently increased requirements of e-learning systems,multiple educational institutes such as kindergarten have transformed their learning towards virtual education.Automated student health exercise is a di... Due to the recently increased requirements of e-learning systems,multiple educational institutes such as kindergarten have transformed their learning towards virtual education.Automated student health exercise is a difficult task but an important one due to the physical education needs especially in young learners.The proposed system focuses on the necessary implementation of student health exercise recognition(SHER)using a modified Quaternion-basedfilter for inertial data refining and data fusion as the pre-processing steps.Further,cleansed data has been segmented using an overlapping windowing approach followed by patterns identification in the form of static and kinematic signal patterns.Furthermore,these patterns have been utilized to extract cues for both patterned signals,which are further optimized using Fisher’s linear discriminant analysis(FLDA)technique.Finally,the physical exercise activities have been categorized using extended Kalmanfilter(EKF)-based neural networks.This system can be implemented in multiple educational establishments including intelligent training systems,virtual mentors,smart simulations,and interactive learning management methods. 展开更多
关键词 E-LEARNING exercise recognition online physical education students healthcare
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Patterns of medication use for the treatment of menopausal symptoms before and after the women’s health initiative;implications for decision-making practices of women and women’s health professionals 被引量:2
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作者 Chioma Uzoigwe Smith Srini Rajagopalan +3 位作者 Shiva Sajjan Shuvayu Sankar Sen Wenchen Kenneth Wu Henry Hu 《Health》 2011年第7期416-422,共7页
Background: The Women’s Health Initiative (WHI) published findings in 2002 that changed the perception of the use of hormone replacement therapy (HRT) for the reduction of cardiovascular risks. Menopausal women using... Background: The Women’s Health Initiative (WHI) published findings in 2002 that changed the perception of the use of hormone replacement therapy (HRT) for the reduction of cardiovascular risks. Menopausal women using HRT for the relief of vasomotor symptoms were advised to use the lowest possible dose of HRT over the shortest possible duration. Objective: This study sought to examine patterns of HRT use for the treatment of menopausal symptoms before and after the WHI among women at least 40 years of age. Methods: A retrospective analysis was performed on a total of 1367 women in the pre-WHI group and 6467 women in the post-WHI group using the U.S. General Electric (GE) Centricity electronic medical record database. Menopause diagnosis was assessed using ICD-9 codes. Clinical characteristics and medication use were assessed for women with at least 3 years of enrollment (1 year baseline, 2 years follow-up). Results: The proportion of women in the post-WHI group that initiated HRT was significantly less than that of women in the pre-WHI group (31.3% vs. 56.9%, respectively;p < 0.001). Combination HRT use declined significantly (21.9% pre-WHI cohort vs. 7.2% post- WHI cohort, p < 0.001) among increases in non-HRT use, namely SSRIs (15.2% pre-WHI cohort v. 22.3% post-WHI cohort, p < 0.001) and tranquilizers (9.5% pre-WHI cohort v. 15.8% post-WHI cohort, p < 0.001). Conclusion: The results of the WHI 2002 publication made an impression on the perception of HRT’s role in the relief of menopausal symptoms. Decision-making on the part of women seeking treatment for vasomotor symptoms and women’s health professionals demonstrates that despite HRT precautions, women continue to exhibit a need for HRT use. This study’s findings suggest that women seeking treatment for menopausal symptom relief and women’s health professionals continue to work together to find the appropriate balance between therapy use and adherence to therapy use guidelines. 展开更多
关键词 Women’s HEALTH initiative (WHI) HORMONE Replacement Therapy (HRT) Women’s HEALTH MENOPAUsE
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The"Belt and Road"Initiative:A Chinese Concept for Global Development 被引量:1
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作者 Tian Wenlin 《Contemporary International Relations》 2017年第4期1-20,共20页
China's "Belt and Road" initiative is emerging as the Western-dominated world order is declining. Capitalism has intensified the rich-poor divide and power politics have led to great upheavals. Western values have ... China's "Belt and Road" initiative is emerging as the Western-dominated world order is declining. Capitalism has intensified the rich-poor divide and power politics have led to great upheavals. Western values have caused a "value dislocation" for non-Western countries. The world is calling for new development concepts. The "Belt and Road" initiative has emerged as an answer. It embodies China's ideas on global development. First, it works for the "common prosperity" of every country, which will ease contradictions between the South and the North. Second, it emphasizes geo-economie integration that will heal the fragmentation of Eurasia. Third, it advocates linkages between people and inclusiveness to create a new kind of civilization. However, many difficulties and challenges lie ahead for the implementation of the "Belt and Road" initiative. 展开更多
关键词 Belt and Road initiative global development geopolitical integration China' s conception
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GDI and GSI: China’s New Propositions for Global Governance
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作者 Ouyang Xiangying 《China Economist》 2024年第5期107-116,共10页
In the post-pandemic era,the global economic and security landscapes are fraught with complexities and uncertainties.Among them,four risk flashpoints merit attention:Certain countries are raising interest rates to sub... In the post-pandemic era,the global economic and security landscapes are fraught with complexities and uncertainties.Among them,four risk flashpoints merit attention:Certain countries are raising interest rates to subdue inflation,despite their already high levels of debt;the bulk commodities market is experiencing volatility,leading to global turbulence and change;trade protectionism is at the forefront of major-power rivalry in political and economic spheres;and regional security crises are compounding international tensions.Behind those flashpoints are contradictions that obstruct world peace and progress,including development imbalances,governance gaps,and structural tensions in global security.In the face of uncertainties,it is crucial for China to seize strategic opportunities and transform crises into favorable situations.China has launched the Global Development Initiative(GDI)and the Global Security Initiative(GSI)to contribute to global prosperity and security.The two initiatives demonstrate China’s commitment to addressing global deficits in peace,development,security,and governance. 展开更多
关键词 Global Development initiative(GDI) Global security initiative(GsI) China’s approach to global governance Ukraine crisis China-Russia relationship
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Assessment of Early Sexual Initiation and Associated Factors among Preparatory School Students of FaggetaLekoma District, Awi Zone, Northwest Ethiopia, 2015
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作者 Dessalew Bizu Zewdie Aderaw Getachew Mullu Kassa 《International Journal of Clinical Medicine》 2015年第8期521-529,共9页
Introduction: Almost half of the world’s population is concentrated under the age of less than 25 years. The highest number of this population is living in developing countries. Sub-Saharan Africa youths constitute 2... Introduction: Almost half of the world’s population is concentrated under the age of less than 25 years. The highest number of this population is living in developing countries. Sub-Saharan Africa youths constitute 20% - 30% of this population. Early sexual initiation is common among young people, and it has several sexual and reproductive health consequences. So, the objective of this research was to assess the prevalence of early sexual initiation and associated factors among preparatory school students of FaggetaLekoma district, Awi zone, Northwest Ethiopia, 2015. Methods and Materials: Institutional based cross-sectional study design with stratified sampling technique was used. Completeness of questionnaires was checked visually and data were coded and entered into Epi-Info version 3.5.4. and transported to SPSS version 16 software package for analysis. Bivariate and multivariate logistic regression was used to determine factors associated with early sexual initiation at 95% confidence interval. Result: A total of 270 students were included in the study. The mean age of the respondents was 18.82 ± 1.91 years, of which 117 (43.3%) were females, and 156 (57.8%) were rural residents. Among the total students who attended their class within the study period, 55 (20.4%) students had early sexual initiation. The results of multivariable model revealed that age AOR = 4.38, 95% CI (1.75 - 10.94), grade AOR = 4.18, 95% CI (1.58 - 11.04), existence of a boy/girl friend OR = 8.56, 95% CI (3.16 - 23.14), parental supervision AOR = 0.20, 95% CI (0.04 - 0.94) and peer pressure AOR = 3.56, 95% CI (1.31 - 9.66) were found to be significantly associated with early sexual initiation in multivariable analysis with P-value < 0.05. Conclusion and Recommendation: The current study found that early sexual initiation is still the problem. Among those who had initiated sex early, most of them had sex within the past 12 months, most of them had sex with their boy/girl friends and majority of them did not use condom. Age, grade, existence of a boy/girl friend, parental supervision and peer pressure of respondents were factors affecting early sexual initiation in the study area. In order to reduce early sexual initiation in preparatory school students, stakeholders should prioritize to educate young peoples, couples, and parents about sexual and reproductive health issues. 展开更多
关键词 EARLY sEX EARLY sexual initiATION Young People PREPARATORY students Ethiopia
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“优师计划”背景下师范生U-G-S培养模式价值、问题及对策
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作者 尹婷婷 蒋丽 高鹏飞 《唐山师范学院学报》 2024年第3期106-109,共4页
从“优师计划”背景下师范生U-G-S培养模式价值分析入手,剖析“优师计划”背景下师范生U-G-S培养模式中地方政府、师范院校、中小学校、师范生四个基本要素各自存在问题,提出“四位一体”师范生U-G-S培养模式提升对策,以当地政府为主导... 从“优师计划”背景下师范生U-G-S培养模式价值分析入手,剖析“优师计划”背景下师范生U-G-S培养模式中地方政府、师范院校、中小学校、师范生四个基本要素各自存在问题,提出“四位一体”师范生U-G-S培养模式提升对策,以当地政府为主导、以师范院校为引领、以中小学校为核心、以师范生为主体,统筹各方培养资源和优势力量,激活多方利益主体意愿,助力乡村卓越教师的培养。 展开更多
关键词 “优师计划” 师范生 U-G-s培养模式
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Australia’s Fear and Greed over China’s Rise:A Discourse Analysis of Mainstream News Coverage of the Belt and Road Initiative
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作者 CHEN Zhixin 《International Relations and Diplomacy》 2018年第8期436-448,共13页
China’s rise has stirred up world-wide debate.In Australia,China has been one of the keywords in its foreign and strategic policies and on news media.Its rise intensifies the dual functions―benefit provider and secu... China’s rise has stirred up world-wide debate.In Australia,China has been one of the keywords in its foreign and strategic policies and on news media.Its rise intensifies the dual functions―benefit provider and security offender to Australia and the tensions between greed of economic gains and fear of China’s increasing geopolitical strength and influence.The“fear and greed”narration is well-presented on Australian mainstream media.Such ambivalence can also find its expressions in the recent typical case of China’s rise―the Belt and Road Initiative.It is worthwhile to find out how Australia’s ambivalence to BRI and China’s rise is represented on media and to draw the sociopolitical inferences behind“fear and greed”.The thesis is going to take BRI as a typical example of China’s rise to examine the ambivalent“fear and greed”narration on Australian mainstream news media.Data sample includes news reports of BRI from ABC News,The Australian,The Australian Financial Review,The Sydney Morning Herald,and The Age from September 1st,2013 to October 31st,2017.The discourse analysis on China’s images finds that Australia is rather biased against China,regarding China both as a lucrative friend and a threatening enemy.The bias lingers on for centuries and generates misunderstanding,mistrust,and anxiety.Profit drives Australia to establish closer economic ties with China,while value differences would not allow too much proximity but help to maintain a robust alliance with its allies.Australia’s position between its major economic partner and traditional allies has caused much concern and will have a long-term influence on its policy-making decisions. 展开更多
关键词 China’s RIsE BELT and Road initiative(BRI) FEAR and GREED
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The Belt and Road Initiatives and China's Middle East Energy Policy
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作者 Xuming Qian 《International Relations and Diplomacy》 2016年第10期611-616,共6页
The paper analyses the roots of the Belt and Road Initiative as well as China's Middle East Energy Policy in an age of great transformation. China's rapidly progressed economic growth leading to a dramatic increase ... The paper analyses the roots of the Belt and Road Initiative as well as China's Middle East Energy Policy in an age of great transformation. China's rapidly progressed economic growth leading to a dramatic increase in China's energy demand in recent years. The Middle East countries play a critical role in the international energy markets. Stable relations with the Middle East countries become increasingly important for Chinese energy security, and the continued development. The protection of these relations lies at the core of the Belt and Road Initiative. Within The Belt and Road Initiative, Chinese Middle East energy policy proceeds according to the energy cooperation framework known as "1+2+3", which seeks to build a reliable China-Arab strategic cooperative relationship based on long-term friendship. To avoid over dependence on the energy resources of the Middle East, China will also continue to search for other overseas energy sources and protect transportation channels. Despite risks and challenges associated with energy imports from the Middle East, China has cultivated strong relations with states in the region and will develop these economic ties further in the coming years. 展开更多
关键词 the Belt and Road initiative Middle East China's foreign policy China-Arab relations
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The Belt and Road Initiatives and China's International Energy Cooperation: Progress, Mechanisms, and Recommendations
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作者 Qian Xu-ming 《Cultural and Religious Studies》 2017年第2期85-94,共10页
China's international energy cooperation and energy security are important parts of The Belt and Road initiatives. China and the countries along the Belt and Road continue to promote cooperation, actively use the exi... China's international energy cooperation and energy security are important parts of The Belt and Road initiatives. China and the countries along the Belt and Road continue to promote cooperation, actively use the existing bilateral and multilateral cooperation mechanisms to promote the regional and inter-regional energy cooperation. Countries along the Belt and Road are rich in oil and gas resources; their demand on the diversification of export meet with the diversification demand on imports of consumption countries; and their oil refining and chemical technology as well as construction capacity is weak, which provides a lot of new opportunities in cooperation for Chinese enterprises. However, the energy cooperation of Chinese enterprises are also facing some challenges in the complex environment of energy cooperation, the interference of big powers, non-traditional security threats, and energy policy factors. Finally, the paper puts forward the strategic thinking of China's international energy cooperation under the new situation. 展开更多
关键词 The Belt and Road initiatives China's international energy cooperation energy cooperation mechanism energy strategic channels
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Evaluation of Technical Education by Using a Modern Structured MOODLE Laboratory Course, in Relation to Recent Data
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作者 Gerasimos Vlassopoulos George Albert Karikas +4 位作者 Efstathia Papageorgiou Ioannis Psaromiligkos Niki Giannouli Pigi Vlassopoulou Petros Karkalousos 《Journal of Intelligent Learning Systems and Applications》 2024年第3期316-339,共24页
E-learning platforms support education systems worldwide, transferring theoretical knowledge as well as soft skills. In the present study high-school pupils’, and adult students’ opinions were evaluated through a mo... E-learning platforms support education systems worldwide, transferring theoretical knowledge as well as soft skills. In the present study high-school pupils’, and adult students’ opinions were evaluated through a modern structured MOODLE interactive course, designed for the needs of the laboratory course “Automotive Systems”. The study concerns Greek secondary vocational education pupils aged 18 and vocational training adult students aged 20 to 50 years. The multistage, equal size simple random cluster sample was used as a sampling method. Pupils and adult students of each cluster completed structured 10-question questionnaires both before and after attending the course. A total of 120 questionnaires were collected. In general, our findings disclosed that the majority of pupils and adult students had significantly improved their knowledge and skills from using MOODLE. They reported strengthening conventional teaching, using the new MOODLE technology. The satisfaction indices improved quite, with the differences in their mean values being statistically significant. 展开更多
关键词 Information and Communication Technologies (ICT) Distance Learning E-Learning students Opinions Education in Greece I.C.T. in Greece students Pupils Adults Adult students MOODLE MOOC (V.H.s.) Vocational High schools (s.H.V.T.) schools of Higher Vocational Training VOCATIONAL Profession Interactive Lessons Courses Training Laboratory Course secondary Education Automotive systems Car systems
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S形钢丝初辊压工艺的数值分析
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作者 赵远 贾力 +5 位作者 胡丞杨 周能作 王飞 朱晓雄 薛花娟 赵军 《现代交通与冶金材料》 CAS 2024年第5期17-23,共7页
根据主缆S形钢丝的技术指标要求,利用有限元分析和试验测试等手段,在保持总变形不变的条件下,对10#钢分别进行4道、6道、8道初辊压测试试验。试验结果表明S形钢丝应力的集中区域存在于变形过渡区和辊缝中心线的主要变形区,随着辊压道次... 根据主缆S形钢丝的技术指标要求,利用有限元分析和试验测试等手段,在保持总变形不变的条件下,对10#钢分别进行4道、6道、8道初辊压测试试验。试验结果表明S形钢丝应力的集中区域存在于变形过渡区和辊缝中心线的主要变形区,随着辊压道次的增加,拉长的晶粒也更多。数值分析的预测结果与实验表征的结果具有良好的一致性。 展开更多
关键词 初辊压 s形钢丝 有限元分析 应力-应变
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厚尾噪声条件下星凸形扩展目标student’s t滤波器 被引量:2
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作者 陈辉 张星星 杨文瑜 《兰州理工大学学报》 CAS 北大核心 2021年第5期85-92,共8页
针对非线性非高斯厚尾噪声条件下的不规则形状的扩展目标跟踪问题,提出了基于随机超曲面模型(RHM)的星凸形扩展目标student’s t滤波算法.首先,在带有非高斯厚尾过程噪声和厚尾量测噪声的系统中,基于student’s t分布给出鲁棒student’... 针对非线性非高斯厚尾噪声条件下的不规则形状的扩展目标跟踪问题,提出了基于随机超曲面模型(RHM)的星凸形扩展目标student’s t滤波算法.首先,在带有非高斯厚尾过程噪声和厚尾量测噪声的系统中,基于student’s t分布给出鲁棒student’s t滤波器.其次,利用随机超曲面模型描述任意星凸形扩展目标的量测源分布,提出带厚尾噪声的星凸形扩展目标student’s t滤波器.最后通过仿真验证了所提方法的正确性和有效性. 展开更多
关键词 扩展目标跟踪 随机超曲面模型 鲁棒students t滤波器 students t分布
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Student’s t滤波框架下的信息融合算法 被引量:1
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作者 吴骁航 马克茂 《浙江大学学报(工学版)》 EI CAS CSCD 北大核心 2020年第3期581-588,共8页
针对多传感器系统的观测噪声为非高斯噪声的问题,通过Student’s t滤波框架和四元数特性相结合,以无迹变换计算Student’s t加权积分函数,设计基于Student’s t分布的无迹四元数滤波算法,作为局部滤波算法.利用拉格朗日乘子法计算最优... 针对多传感器系统的观测噪声为非高斯噪声的问题,通过Student’s t滤波框架和四元数特性相结合,以无迹变换计算Student’s t加权积分函数,设计基于Student’s t分布的无迹四元数滤波算法,作为局部滤波算法.利用拉格朗日乘子法计算最优融合权重系数,通过线性加权融合的方式,对各局部滤波结果进行融合.采用基于四元数的目标姿态运动模型进行仿真,利用3个星敏感器同时对同一目标进行观测,通过与已有的鲁棒无迹Student’s t滤波(RSTUF)算法对比,验证所提算法的有效性.仿真结果表明:所提算法在对目标姿态的估计精度、滤波收敛速度及收敛后的数值稳定性方面均高于RSTUF算法;通过多个观测信息互补,提高了估计精度及容错性. 展开更多
关键词 组合导航 students T分布 分布式融合 四元数 无迹四元数滤波
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