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2007 Thirty-Ninth Southeastern Symposium on System Theory最新文献

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On the Development of an Enhanced Optical Mouse Sensor for Odometry and Mobile Robotics Education 一种用于里程计和移动机器人教育的增强型光学鼠标传感器的研制
2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352307
J. Bradshaw, C. Lollini, B. Bishop
{"title":"On the Development of an Enhanced Optical Mouse Sensor for Odometry and Mobile Robotics Education","authors":"J. Bradshaw, C. Lollini, B. Bishop","doi":"10.1109/SSST.2007.352307","DOIUrl":"https://doi.org/10.1109/SSST.2007.352307","url":null,"abstract":"This paper focuses on the development of a sensing module, testing methodology and set of experiments for the use of an optical mouse chip as an odometer in mobile robotics, including in an educational setting at the undergraduate level. The test bed includes an integrated microprocessor, mounting board and lens system designed to overcome the basic height to surface and speed limitations on the optical mouse chip with the manufacturer-supplied lens. The finalized system can be used in a mobile robotics course segment on sensing and state estimation.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133543988","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: 8
Approximation of Generator Coherency Based on Synchronization Coefficients 基于同步系数的发电机相干近似
2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352315
Ma, Jason A Taylor, S. M. Halpin, J. A. Taylor, S. M. Halpin
{"title":"Approximation of Generator Coherency Based on Synchronization Coefficients","authors":"Ma, Jason A Taylor, S. M. Halpin, J. A. Taylor, S. M. Halpin","doi":"10.1109/SSST.2007.352315","DOIUrl":"https://doi.org/10.1109/SSST.2007.352315","url":null,"abstract":"Dynamically coupled or coherent groups of generators are likely to occur between strongly connected generators connected to the system through weak or strained transmission lines. Establishing which machines in a system are dynamically coupled has shown to be helpful in identifying coherent areas for aggregation, providing insights into system stability, and for showing potential stability limits. Synchronizing coefficients between machines is a well established measure for the level of influence that machines have on each other. The synchronizing coefficients reflect not only the strength of the connections between machines but also include the effects of system loading. This paper proposes a method to approximate dynamic coupling or coherency based on direct evaluation of the synchronizing coefficient magnitudes. It is shown that estimation of the dynamic coupling in this manner has the benefit of being computationally simple without requiring any additional information beyond the load flow data.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122257328","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: 6
Phase Delay Measurement and Calibration in Built-In Analog Functional Testing 内置模拟功能测试中的相位延迟测量与校准
2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352336
J. Qin, Charles E. Stroud, Foster Dai
{"title":"Phase Delay Measurement and Calibration in Built-In Analog Functional Testing","authors":"J. Qin, Charles E. Stroud, Foster Dai","doi":"10.1109/SSST.2007.352336","DOIUrl":"https://doi.org/10.1109/SSST.2007.352336","url":null,"abstract":"A built-in self-test (BIST) approach has been proposed for functionality measurements of analog circuitry in mixed-signal systems. The BIST circuitry consists of a direct digital synthesizer (DDS) based test pattern generator (TPG) and multiplier/accumulator (MAC) based output response analyzer (ORA). In this paper we investigate and discuss the effects of phase delay on analog functionality measurements in mixed-signal systems when using MAC-based ORAs. We show that phase delay has a critical impact on measurement results and that the MAC-based ORA is an effective method for measuring phase delay.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130772716","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: 9
A Computer-Based Soil Moisture Monitoring and Hydrating System 基于计算机的土壤水分监测与水化系统
2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352335
J. Juang, D. Ekong, C. Carlson, W. Longsdorf, M. Miller
{"title":"A Computer-Based Soil Moisture Monitoring and Hydrating System","authors":"J. Juang, D. Ekong, C. Carlson, W. Longsdorf, M. Miller","doi":"10.1109/SSST.2007.352335","DOIUrl":"https://doi.org/10.1109/SSST.2007.352335","url":null,"abstract":"A computer-based soil moisture monitoring and hydrating system is described in this paper. This system is made of two major components: the sensing unit, and the main station. The sending unit can be located out in a lawn or field, while the main station can be located close to the sprinkler system control. This system provides soil moisture measurements, and it also interfaces with an irrigation system to allow for automatic watering of the soil. Components of the system, as well as tests carried out on the system are described.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115319214","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
Research and Implement of Grid Portal Based on Gridport 基于Gridport的网格门户的研究与实现
2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352353
Jing Chen, Mingxin Liu, Ling-Fu Kong
{"title":"Research and Implement of Grid Portal Based on Gridport","authors":"Jing Chen, Mingxin Liu, Ling-Fu Kong","doi":"10.1109/SSST.2007.352353","DOIUrl":"https://doi.org/10.1109/SSST.2007.352353","url":null,"abstract":"Grid portal is the entrance which users apply all kinds of grid services. In this paper, it provides architecture of gird portal based on gridport, and discusses the flow of job submission, deploys resource monitoring services, and designs resource allocation algorithm. Finally, it tests the variance ratio of RAM by resources monitoring services and the performance of resource allocation algorithm by GridSim based on 3D reconstruction application. The results show that architecture of gridport may support the execution of job submission, resources monitoring and resource allocation.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125048380","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
Power Allocation with Outage Probability Constraints in Lognormal Fading Wireless Channels: A Relaxation Approach 对数正态衰落无线信道中具有中断概率约束的功率分配:一种松弛方法
2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352342
Kan-Lin Hsiung, R. Chen
{"title":"Power Allocation with Outage Probability Constraints in Lognormal Fading Wireless Channels: A Relaxation Approach","authors":"Kan-Lin Hsiung, R. Chen","doi":"10.1109/SSST.2007.352342","DOIUrl":"https://doi.org/10.1109/SSST.2007.352342","url":null,"abstract":"This paper concerns stochastic power allocation in lognormal fading wireless channels. We consider an outage-based quality of service (QoS) specification which requires that, for each transmitter/receiver pair, the outage probability is kept below a given level. We show that the problem of finding a minimal power allocation to achieve this QoS goal over log-normal fading wireless channels (with statistically independent fadings) can be relaxed as a posynomial program, which can be furthered solved by the very efficient interior-point method.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120943538","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: 9
A Quartic Solution Covering Freeze-out and Exhaustion in P-type Compensated Semiconductors 覆盖p型补偿半导体中冻结和耗尽的四次解
2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352368
Justin Fenley, R. Pieper
{"title":"A Quartic Solution Covering Freeze-out and Exhaustion in P-type Compensated Semiconductors","authors":"Justin Fenley, R. Pieper","doi":"10.1109/SSST.2007.352368","DOIUrl":"https://doi.org/10.1109/SSST.2007.352368","url":null,"abstract":"The local charge neutrality condition for partially compensated P-type doubly-doped uniform equilibrium semiconductors is shown to lead to a quartic polynomial in a Z-parameter that is directly proportional to the concentration of holes. Analysis demonstrates that the problem is solvable exactly by identifying the only physically permissible root to a quartic polynomial. The unique solution for Z leads directly to analytic expressions for temperature dependent majority carrier concentration and the Fermi level.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"27 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113970987","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
Detection of Broken Rotor Bars and Stator Faults in Squirrel-Cage Induction Machine by Spectral Analysis 鼠笼式感应电机转子断条和定子故障的频谱分析
2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352364
Omar Touhami, Maurice Fadel
{"title":"Detection of Broken Rotor Bars and Stator Faults in Squirrel-Cage Induction Machine by Spectral Analysis","authors":"Omar Touhami, Maurice Fadel","doi":"10.1109/SSST.2007.352364","DOIUrl":"https://doi.org/10.1109/SSST.2007.352364","url":null,"abstract":"This paper presents the analysis of the stator current signature of the induction motor by the traditional methods that use fast Fourier transform (FFT), short-term Fourier transform (STFT) and the representation by spectrogram. The obtained results on four designed induction machines and are especially constructed for the purpose of the defects diagnosis are presented. One compares these results with those gotten by the help of transformed it in wavelets. Then, the dynamic performances of the squirrel-cage rotor induction machines with their respective faults while using an analytic method based on the equivalent diagram and the vector diagram of the currents, is analyzed.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"23 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120916544","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
Implementing Timed Petri Net in Security Information Systems 定时Petri网在安全信息系统中的实现
2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352351
H. Chin, Chu Huang, A. A. Jafari
{"title":"Implementing Timed Petri Net in Security Information Systems","authors":"H. Chin, Chu Huang, A. A. Jafari","doi":"10.1109/SSST.2007.352351","DOIUrl":"https://doi.org/10.1109/SSST.2007.352351","url":null,"abstract":"A security information system is subject to the secrecy constraints and structural requirements of the current information being processed. Secrecy constraints characterize information based on its sensitivity. Structural requirements concern information processing controls which are dependent on context of the workflow. A workflow is a representation of an information process and is comprised of a set of tasks and a set of dependencies between the tasks. Dependencies fall into two broad categories: those determined by the order of task execution and those determined by secrecy constraints. A task is regarded as a set of timed Petri net components which have the ability to specify and verify time constraints in a workflow. The purpose of this paper is to investigate the possible use of the timed Petri net as a dynamic security protection mechanism in a security information system. The conclusion suggests a possible direction for further research.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128538475","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
Nonlinear Dynamic System Model of Unipolar Mood Disorder 单极情绪障碍的非线性动态系统模型
2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352358
M. Anand Mohan, Sen. Mem
{"title":"Nonlinear Dynamic System Model of Unipolar Mood Disorder","authors":"M. Anand Mohan, Sen. Mem","doi":"10.1109/SSST.2007.352358","DOIUrl":"https://doi.org/10.1109/SSST.2007.352358","url":null,"abstract":"Unipolar depressive disorder is characterized by persistent low mood, decrease in cognitive function, loss of interest in work and recreation, somatic complaints etc. This paper presents a nonlinear dynamic system model of the unipolar depressive disorder. Simulations show that the model response is similar to that of patients diagnosed with unipolar depressive disorder. The simple, basic model presented here can form the basis for more informed clinical trials. The data acquired from such clinical trials can, in turn, be used to refine the model and the interventions.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"2675 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125855765","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
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