Pub Date : 2008-12-01DOI: 10.1109/KAMW.2008.4810479
Weiwen Li, Xianmin Zhang, B. You, K. Zou
A novel endless polarization control algorithm based on simulated annealing (SA) algorithm is proposed. The application of the SA algorithm in a fast feedback polarization controller (PC) constructed by four electro-optic ceramic variable waveplates for the continuous conversion of the state of polarization (SOP) is presented. The experiment results show that the fluctuation of the light intensity in the desired output SOP is less than 2 % for a random input SOP. It is demonstrated that, this SA-based PC can run reset-freely and the response time is less than 400mus.
{"title":"Endless Polarization Control Based on Simulated Annealing Algorithm","authors":"Weiwen Li, Xianmin Zhang, B. You, K. Zou","doi":"10.1109/KAMW.2008.4810479","DOIUrl":"https://doi.org/10.1109/KAMW.2008.4810479","url":null,"abstract":"A novel endless polarization control algorithm based on simulated annealing (SA) algorithm is proposed. The application of the SA algorithm in a fast feedback polarization controller (PC) constructed by four electro-optic ceramic variable waveplates for the continuous conversion of the state of polarization (SOP) is presented. The experiment results show that the fluctuation of the light intensity in the desired output SOP is less than 2 % for a random input SOP. It is demonstrated that, this SA-based PC can run reset-freely and the response time is less than 400mus.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"359 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124527981","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}
Pub Date : 2008-12-01DOI: 10.1109/KAMW.2008.4810671
Yi Wen-de, Huang Ai-hua
Both of temporal dependence and contemporaneous dependence are primary dependence relationship of time series vector. In economic and financial applications, one is often interested in estimating or forecasting certain characteristics of a time series given known conditions. Considering both classes of dependence and constructing conditional dependence model of bivariate Markov time series of order 1. Based on this conditional model, the moment and quantile functions of bivariate vector and univariate series are studied and a simulating way for the q th conditional quantile of bivariate vector is proposed. They are useful of measure of portfolio risk in the risk management.
{"title":"Study on the Moment and Quantile Functions of Conditional Model of Bivariate Markov Time Series of Order 1","authors":"Yi Wen-de, Huang Ai-hua","doi":"10.1109/KAMW.2008.4810671","DOIUrl":"https://doi.org/10.1109/KAMW.2008.4810671","url":null,"abstract":"Both of temporal dependence and contemporaneous dependence are primary dependence relationship of time series vector. In economic and financial applications, one is often interested in estimating or forecasting certain characteristics of a time series given known conditions. Considering both classes of dependence and constructing conditional dependence model of bivariate Markov time series of order 1. Based on this conditional model, the moment and quantile functions of bivariate vector and univariate series are studied and a simulating way for the q th conditional quantile of bivariate vector is proposed. They are useful of measure of portfolio risk in the risk management.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121610018","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}
Pub Date : 2008-12-01DOI: 10.1109/KAMW.2008.4810573
Xu Liu, Zong-ze Xu
Structure constrained parallel factor (PARAFAC) model, which combines the structural property of communication signal with the PARAFAC analysis, was presented in this paper. The uniqueness property of the model was discussed and developed. Structure constrained trilinear alternative least square (SCTALS) algorithm was proposed to fit the constrained model. Simulation results showed that, compared to the normal PARAFAC model, the structure constrained PARAFAC was more suitable to describe communication signal. The blind signal processing algorithm based on the constrained model had better fitting performance, and still worked well in some conditions where the normal PARAFAC-based algorithm failed.
{"title":"Structure Constrained PARAFAC Model with Application to Signal Processing","authors":"Xu Liu, Zong-ze Xu","doi":"10.1109/KAMW.2008.4810573","DOIUrl":"https://doi.org/10.1109/KAMW.2008.4810573","url":null,"abstract":"Structure constrained parallel factor (PARAFAC) model, which combines the structural property of communication signal with the PARAFAC analysis, was presented in this paper. The uniqueness property of the model was discussed and developed. Structure constrained trilinear alternative least square (SCTALS) algorithm was proposed to fit the constrained model. Simulation results showed that, compared to the normal PARAFAC model, the structure constrained PARAFAC was more suitable to describe communication signal. The blind signal processing algorithm based on the constrained model had better fitting performance, and still worked well in some conditions where the normal PARAFAC-based algorithm failed.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121972141","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}
Pub Date : 2008-12-01DOI: 10.1109/KAMW.2008.4810537
Xiong-qing Peng, Zheng Wu, Yang Yu, Xia Zhang
At present, isolated and single network security system can no longer meet the objective needs. As a new type of network, trusted network can make up many of the traditional network security flaws. Based on the analysis of the background and motivation of trusted network, the article discussed the concept and basic properties. It analyzed the architecture of trusted network and the functions of its composition. Finally, the article discussed one of models of the trusted network management platform and described its functions.
{"title":"Study on the Architecture and Management Platform Model of Trusted Network","authors":"Xiong-qing Peng, Zheng Wu, Yang Yu, Xia Zhang","doi":"10.1109/KAMW.2008.4810537","DOIUrl":"https://doi.org/10.1109/KAMW.2008.4810537","url":null,"abstract":"At present, isolated and single network security system can no longer meet the objective needs. As a new type of network, trusted network can make up many of the traditional network security flaws. Based on the analysis of the background and motivation of trusted network, the article discussed the concept and basic properties. It analyzed the architecture of trusted network and the functions of its composition. Finally, the article discussed one of models of the trusted network management platform and described its functions.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121175560","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}
Pub Date : 2008-12-01DOI: 10.1109/KAMW.2008.4810482
Biao Huang, Peng Yang
As a new theory for studying non-linear complex systems, fractal geometry has received much attention recently. Based on the relationship between length of curve and change of scale as well as the idea that a closed curve is formed by a certain amount of unclosed curves, we present an improved Douglas-Peuker method (IDPM) based algorithm. Our algorithm can not only keep the shape and details of the closed curve but also take advantage of the research achievements of the unclosed curves. In addition, it simplifies the operation and reduces the preserved points while rebuilding boundary of graph.
{"title":"A Method for Rebuilding Closed Curve Based on Fractal","authors":"Biao Huang, Peng Yang","doi":"10.1109/KAMW.2008.4810482","DOIUrl":"https://doi.org/10.1109/KAMW.2008.4810482","url":null,"abstract":"As a new theory for studying non-linear complex systems, fractal geometry has received much attention recently. Based on the relationship between length of curve and change of scale as well as the idea that a closed curve is formed by a certain amount of unclosed curves, we present an improved Douglas-Peuker method (IDPM) based algorithm. Our algorithm can not only keep the shape and details of the closed curve but also take advantage of the research achievements of the unclosed curves. In addition, it simplifies the operation and reduces the preserved points while rebuilding boundary of graph.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122276856","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}
Pub Date : 2008-12-01DOI: 10.1109/KAMW.2008.4810577
Tang Bo, Tan Xiaobin, Yin Bao-qun
The use of continuous-time hidden Markov models for network protocol and application performance evaluation has been validated to simulate network environments. In this paper, we develop a better algorithm to infer the continuous-time hidden Markov model from a series of end-to-end delay and loss observation of probing packets. We prove the algorithm's feasibility by theory deduction and realize numerable validation by comparing the probability of the observed sequence produced by the model inferred by different methods. The algorithm complexity is lower.
{"title":"Continuous-time Hidden Markov models in Network Simulation","authors":"Tang Bo, Tan Xiaobin, Yin Bao-qun","doi":"10.1109/KAMW.2008.4810577","DOIUrl":"https://doi.org/10.1109/KAMW.2008.4810577","url":null,"abstract":"The use of continuous-time hidden Markov models for network protocol and application performance evaluation has been validated to simulate network environments. In this paper, we develop a better algorithm to infer the continuous-time hidden Markov model from a series of end-to-end delay and loss observation of probing packets. We prove the algorithm's feasibility by theory deduction and realize numerable validation by comparing the probability of the observed sequence produced by the model inferred by different methods. The algorithm complexity is lower.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126991697","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}
Pub Date : 2008-12-01DOI: 10.1109/ICIEA.2009.5138770
Shuai-Tian He, C. Du
In this paper, the guaranteed cost control with adjustable parameters for linear time-delay systems is studied. Firstly, the guaranteed cost controller with adjustable parameters is designed, and the sufficient condition for the controller existing is given in the form of LMI. And then, by designing the adaptive law of adjustable parameter, the adaptive guaranteed cost control is discussed. When adjustable parameters take different values, the guaranteed cost value and the feedback gains are also different. Different feed-back gains lead to different dynamic performance of closed-loop systems, therefore, the dynamic performance of closed-loop systems can be optimized and the guaranteed cost value can be reduced by choosing proper adjustable parameters. By designing adaptive law of the adjustable parameter, and introducing it into the stability conditions of closed-loop systems, the feedback gains which change with time are gotten. Compared with the results by fixed feedback gains, the proposed method leads to less conservatism. Simulation example is given to show the effectiveness of the proposed approach.
{"title":"Adaptive Guaranteed Cost Control for Time-delay Systems","authors":"Shuai-Tian He, C. Du","doi":"10.1109/ICIEA.2009.5138770","DOIUrl":"https://doi.org/10.1109/ICIEA.2009.5138770","url":null,"abstract":"In this paper, the guaranteed cost control with adjustable parameters for linear time-delay systems is studied. Firstly, the guaranteed cost controller with adjustable parameters is designed, and the sufficient condition for the controller existing is given in the form of LMI. And then, by designing the adaptive law of adjustable parameter, the adaptive guaranteed cost control is discussed. When adjustable parameters take different values, the guaranteed cost value and the feedback gains are also different. Different feed-back gains lead to different dynamic performance of closed-loop systems, therefore, the dynamic performance of closed-loop systems can be optimized and the guaranteed cost value can be reduced by choosing proper adjustable parameters. By designing adaptive law of the adjustable parameter, and introducing it into the stability conditions of closed-loop systems, the feedback gains which change with time are gotten. Compared with the results by fixed feedback gains, the proposed method leads to less conservatism. Simulation example is given to show the effectiveness of the proposed approach.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121510983","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}
Pub Date : 2008-12-01DOI: 10.1109/KAMW.2008.4810585
Xin Yu, Zhiqiang Ye, Lingnan Mei
How to select athletes has always been an important research subject in sports activities. And this paper explores one related analytical method in which the computer is applied to every dynamic element while choosing sport equipments. And through the example of jump athletes, building the mathematical model of systematical related elements and the steps which uses this model to analyze the dynamic changes of every element in the system is discussed. Therefore it provides for the coaches scientific methods and necessary informational basis in selecting out the excellent athletes.
{"title":"Application of Computer in Selection of Sports Talents based on Regression Equation","authors":"Xin Yu, Zhiqiang Ye, Lingnan Mei","doi":"10.1109/KAMW.2008.4810585","DOIUrl":"https://doi.org/10.1109/KAMW.2008.4810585","url":null,"abstract":"How to select athletes has always been an important research subject in sports activities. And this paper explores one related analytical method in which the computer is applied to every dynamic element while choosing sport equipments. And through the example of jump athletes, building the mathematical model of systematical related elements and the steps which uses this model to analyze the dynamic changes of every element in the system is discussed. Therefore it provides for the coaches scientific methods and necessary informational basis in selecting out the excellent athletes.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127398751","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}
Pub Date : 2008-12-01DOI: 10.1109/KAMW.2008.4810498
Fan Wei, Cao Yunxia, Bi Xin, Ma Yue, Chen Shuai
In this paper we present a novel adaptive ground clutter removal algorithm for high range resolution MMW-radar application where the dielectric contrast between the air and the ground material is close to or even higher than that between the target and the surrounding medium. Most of the ground clutter removal algorithms used nowadays, show weak performances in the case of a rough ground surface or suffer from high computation complexity. The algorithm presented in this contribution is capable to remove the ground clutter resulting from undulated surfaces by estimating not only the position but also the varying signal shape and enables a near optimal ground clutter reduction with a moderate computation complexity.
{"title":"A Novel Adaptive Ground Clutter Removal Algorithm for High Range Resolution MMW Radar","authors":"Fan Wei, Cao Yunxia, Bi Xin, Ma Yue, Chen Shuai","doi":"10.1109/KAMW.2008.4810498","DOIUrl":"https://doi.org/10.1109/KAMW.2008.4810498","url":null,"abstract":"In this paper we present a novel adaptive ground clutter removal algorithm for high range resolution MMW-radar application where the dielectric contrast between the air and the ground material is close to or even higher than that between the target and the surrounding medium. Most of the ground clutter removal algorithms used nowadays, show weak performances in the case of a rough ground surface or suffer from high computation complexity. The algorithm presented in this contribution is capable to remove the ground clutter resulting from undulated surfaces by estimating not only the position but also the varying signal shape and enables a near optimal ground clutter reduction with a moderate computation complexity.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129050984","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}
Pub Date : 2008-12-01DOI: 10.1109/KAMW.2008.4810578
Hu Qiong, Fang Shidong
This paper developed a pipeline leak detection system based on virtual instrument LabVIEW and described the system principle, composition structure and development progress in detail. The pipeline leak detection system acquired pressure and flow at two ends of the pipeline real time, analyzed data by wavelet analysis functions offered by LabVIEW, detected leak through flow changes and located leak by negative pressure wave method. This system has the characteristics of perfect functions, friendly interface, convenient operation and great practicality.
{"title":"Development of Pipeline Leak Detection System based on LabVIEW","authors":"Hu Qiong, Fang Shidong","doi":"10.1109/KAMW.2008.4810578","DOIUrl":"https://doi.org/10.1109/KAMW.2008.4810578","url":null,"abstract":"This paper developed a pipeline leak detection system based on virtual instrument LabVIEW and described the system principle, composition structure and development progress in detail. The pipeline leak detection system acquired pressure and flow at two ends of the pipeline real time, analyzed data by wavelet analysis functions offered by LabVIEW, detected leak through flow changes and located leak by negative pressure wave method. This system has the characteristics of perfect functions, friendly interface, convenient operation and great practicality.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127306417","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}
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