发布求助
文献互助 智能选刊 最新文献

2009 International Conference on Wireless Networks and Information Systems最新文献

筛选
英文 中文
A Data Fusion Algorithm Based on Weighted Least Square for Agile Projectile's Attitude Determination 基于加权最小二乘的敏捷弹丸姿态确定数据融合算法
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.28
Yong Wang, Zhi-De Liu, Jiabin Chen, C. Song, J. Wang
{"title":"A Data Fusion Algorithm Based on Weighted Least Square for Agile Projectile's Attitude Determination","authors":"Yong Wang, Zhi-De Liu, Jiabin Chen, C. Song, J. Wang","doi":"10.1109/WNIS.2009.28","DOIUrl":"https://doi.org/10.1109/WNIS.2009.28","url":null,"abstract":"In this paper, a data fusion algorithm based on weighted least square is proposed to determine the attitude of low-rotary agile projectile. Three micro electro-mechanical system (MEMS) accelerometers are used as strapdown inertial measurement units (IMUs), and the unscented Kalman filter is used to directly estimate attitude of projectile by gravity components of measurement values of three accelerometers. The attitude estimation by three accelerometers is fused with the estimation by using three MEMS gyroscopes based on weighted least square. Experimental results on the three-axis flight test rotary table show the proposed data fusion algorithm effectively improves the precision of attitude estimation and stability of attitude determination system.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126345509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Utility-Based Network Selection Mechanism in Heterogeneous Wireless Networks 异构无线网络中基于效用的网络选择机制
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.94
Yuhong Li, Xianfeng Guo, Yisan Li, Xiuli Zheng
{"title":"A Utility-Based Network Selection Mechanism in Heterogeneous Wireless Networks","authors":"Yuhong Li, Xianfeng Guo, Yisan Li, Xiuli Zheng","doi":"10.1109/WNIS.2009.94","DOIUrl":"https://doi.org/10.1109/WNIS.2009.94","url":null,"abstract":"In the wireless heterogeneous environment, to access the Internet ubiquitously, most of the devices are equipped with multiple radio interfaces. Through this way, the multi-homed node can attach to multiple access networks through one or more radio interfaces. However, this brings forth also a problem of how to select a proper interface and access network for an ongoing application on a user’s device. This paper proposes a utility-based mechanism for selecting a suitable interface and access network. In this mechanism, utility functions are used to represent an application’s requirement on network resources and to calculate the network resource status. Other factors, such as the device parameters, user’s moving velocity and user’s preference are also considered for finally selecting the access network using the multiple criteria decision making method AHP (Analytic Hierarchy Process). Simulation results show that the proposed mechanism can better exert the application’s performance and user’s need.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126212722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Face Tracking Based on Fusion Skin Color Model and Optical Flow Algorithm 基于融合肤色模型和光流算法的人脸跟踪
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.29
Xiaogang Zhao, Yanbo Hui
{"title":"Face Tracking Based on Fusion Skin Color Model and Optical Flow Algorithm","authors":"Xiaogang Zhao, Yanbo Hui","doi":"10.1109/WNIS.2009.29","DOIUrl":"https://doi.org/10.1109/WNIS.2009.29","url":null,"abstract":"A fusion algorithm based on skin color model and optical flow is proposed to detect and track faces. It uses skin color model to detect faces and adopts optical flow algorithm to estimate the continuity of the video frames and obtain the position of faces in the frames. Taking advantages of the algorithms, the proposed method, in some degrees, gives a solution to the effects of face rotation, partial occlusion, expression variation and illumination on face detecting and face tracking.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127093007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Research on the Influence of Human Capital to the Development of Hebei Province High-tech Industry 人力资本对河北省高新技术产业发展的影响研究
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.19
Jun Guan, Pengfei Zhao
{"title":"Research on the Influence of Human Capital to the Development of Hebei Province High-tech Industry","authors":"Jun Guan, Pengfei Zhao","doi":"10.1109/WNIS.2009.19","DOIUrl":"https://doi.org/10.1109/WNIS.2009.19","url":null,"abstract":"Along with the constant increasing of industrial competition, the function of human capital is getting bigger and bigger to the development of High-tech industry, High-tech industry should pay attention to invest in human capital and train the high-tech personnel so as to save strength for industrial's development. This article first has analyzed the function of human capital to the development of High-tech industry from the theory angle, then selected the Hebei Province correlation data to carry on the empirical analysis, has analyzed the influence of human capital to the development of High-tech industry from the real diagnosis angle","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127132857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An Improved Motion Estimation Scheme for Side Information in Distributed Video Coding 分布式视频编码中改进的边信息运动估计方法
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.86
Shujun Huang, Yinwei Zhan
{"title":"An Improved Motion Estimation Scheme for Side Information in Distributed Video Coding","authors":"Shujun Huang, Yinwei Zhan","doi":"10.1109/WNIS.2009.86","DOIUrl":"https://doi.org/10.1109/WNIS.2009.86","url":null,"abstract":"Distributed Video Coding (DVC) is a new video compression technique based on Slepian-Wolf and Wyner-Ziv information theorems with the characteristics of simple encoding and complicated decoding. Side information is a major component of the DVC. It impacts the performance of decoding. In the paper, we propose an improved motion estimation scheme for the side information. The scheme integrates forward motion estimation and bidirectional motion estimation with Kalman filter in order to reduce the complexity in computing the motion vector. Experiments show that the quality of the side information can be enhanced by using the proposed scheme, comparing with the traditional motion estimation schemes.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128098732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on Methods of Semantic Disambiguation about Natural Language Processing 自然语言处理中语义消歧方法研究
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.21
Guohuan Lou, Zhang Hao, Honghui Wang
{"title":"Research on Methods of Semantic Disambiguation about Natural Language Processing","authors":"Guohuan Lou, Zhang Hao, Honghui Wang","doi":"10.1109/WNIS.2009.21","DOIUrl":"https://doi.org/10.1109/WNIS.2009.21","url":null,"abstract":"Natural language processing is one of the most important applications in artificial intelligence (AI), while semantic disambiguation is one of branches and difficulties in natural language processing. This paper introduces three semantic disambiguation models, Bayesian Model, Hidden Markov Model, and Maximum Entropy Model. These three models are used to test and compare with. The results show that the correct rate of disambiguation used by Bayesian Model is the best one, the other two are also well. Every model has its own advantages.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132179470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The Capacity Analysis of Multiple Correlation in MIMO System MIMO系统中多重相关的容量分析
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.42
Teng Zhijun, Zhao Chunhui, Yang Liyuan
{"title":"The Capacity Analysis of Multiple Correlation in MIMO System","authors":"Teng Zhijun, Zhao Chunhui, Yang Liyuan","doi":"10.1109/WNIS.2009.42","DOIUrl":"https://doi.org/10.1109/WNIS.2009.42","url":null,"abstract":"In this paper, the relevant frequency-selective fading channel model for MIMO system is built, on this basis, the expression of MIMO system capacity is derived, the relationship between correlation matrix and system capacity is obtained, and the multiple correlation coefficient on the impact of system capacity is verified by the simulation which provides a theoretical basis for further research on decreased system correlation and expanding channel capacity.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123364333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intrusion Detection Model Based on Support Vector Regression and Principal Components Analysis 基于支持向量回归和主成分分析的入侵检测模型
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.78
WenJie Tian, Jicheng Liu
{"title":"Intrusion Detection Model Based on Support Vector Regression and Principal Components Analysis","authors":"WenJie Tian, Jicheng Liu","doi":"10.1109/WNIS.2009.78","DOIUrl":"https://doi.org/10.1109/WNIS.2009.78","url":null,"abstract":"To overcome the deficiencies of low accuracy and high false alarm rate in network intrusion detection system, an integrated Intrusion detection model based on support vector regression (SVR) and principal components analysis (PCA) is proposed in the paper. Utilizing the character that PCA algorithm can keep the discernability of original dataset after reduction, the reduces of the original dataset are calculated and used to train individual SVR classifier for ensemble, which increase the diversity between individual classifiers, and consequently, increase the detection accuracy. To validate the effectiveness of the proposed method, simulation experiments are performed based on the KDD 99 dataset. The results show that the proposed method is a promised ensemble method owning to its high diversity, high detection accuracy and faster speed in intrusion detection.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122866240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Research of One Mobile Learning System 一个移动学习系统的研究
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.84
Yi Jin
{"title":"Research of One Mobile Learning System","authors":"Yi Jin","doi":"10.1109/WNIS.2009.84","DOIUrl":"https://doi.org/10.1109/WNIS.2009.84","url":null,"abstract":"With the development of computer network technology and mobile communication technology, a new kind of distance education mode, Mobile learning (M-Learning), was created. Mobile learning can provide learners with the maximizing learning autonomy, and also can provide the instructors and education administrators with more flexible teaching and managing methods. Mobile learning is a complicated engineering and faces many problems which need to be solved. The most important precondition of mobile learning is to develop the mobile learning system. In this paper, a new definition of Mobile learning was described and the features of Mobile learning were introduced. Then the framework of one specific mobile learning system was designed, after that nine function modules of the mobile learning system were mentioned, and some function modules of this Mobile learning system were expatiated.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121146452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 44
Full-Rate 2x1 Space-Time Codes with High Diversity Gain 具有高分集增益的全速率2x1空时码
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.73
Qiang Feng, Hongyi Yu, Bo Yang
{"title":"Full-Rate 2x1 Space-Time Codes with High Diversity Gain","authors":"Qiang Feng, Hongyi Yu, Bo Yang","doi":"10.1109/WNIS.2009.73","DOIUrl":"https://doi.org/10.1109/WNIS.2009.73","url":null,"abstract":"Alamouti scheme provides a diversity gain no more than 2 over time-selective fading channels under the circumstances of 2x1 MIMO. A full-rate space-time code, space-time codes for time-selective fading (STC-TS), is proposed to provide more diversity gain when the channels fade fast. While the transmission lasts 2N (N≫1) symbol periods, the diversity gain is almost 2N. What’s more, the optimization of parameters is performed according to minimizing the upper bound of pairwise error probability (PEP) when N=2 and BPSK is employed. Simulation shows that the diversity order of STC-TS is almost 4 when N=2 if channels fade fast enough.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122560707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信