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1993 (25th) Southeastern Symposium on System Theory最新文献

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Grammatical inference using higher order recurrent neural networks 用高阶递归神经网络进行语法推理
1993 (25th) Southeastern Symposium on System Theory Pub Date : 1993-03-07 DOI: 10.1109/SSST.1993.522798
U. Harigopal, H.C. Chen
{"title":"Grammatical inference using higher order recurrent neural networks","authors":"U. Harigopal, H.C. Chen","doi":"10.1109/SSST.1993.522798","DOIUrl":"https://doi.org/10.1109/SSST.1993.522798","url":null,"abstract":"As a step towards proving theorems on the capabilities of a connectionist cognitive model, a higher order recurrent network's capabilities and limitations in learning to perform grammatical inference on regular languages is evaluated. It is seen that the recurrent neural network can learn to recognize an unknown regular grammar, and the finite state automata (FSA) corresponding to the learned grammar is extractable from the state space of the network. The proposed network can also recognize strings much longer than it was trained on. A straightforward method for incorporating partial knowledge of a deterministic FSA in the recurrent network was implemented, to see its effect on the convergence time. Simulation results show a substantial improvement in the rate of convergence of the network.","PeriodicalId":260036,"journal":{"name":"1993 (25th) Southeastern Symposium on System Theory","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129117743","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
Adaptive tracking control of an induction motor 感应电机的自适应跟踪控制
1993 (25th) Southeastern Symposium on System Theory Pub Date : 1993-03-07 DOI: 10.1109/SSST.1993.522738
J. Hu, D. Dawson, Z. Qu
{"title":"Adaptive tracking control of an induction motor","authors":"J. Hu, D. Dawson, Z. Qu","doi":"10.1109/SSST.1993.522738","DOIUrl":"https://doi.org/10.1109/SSST.1993.522738","url":null,"abstract":"An adaptive tracking controller for an induction motor driving a load is presented. Using nonlinear models of the motor and load, a global uniform asymptotic stability (GUAS) result for the motor position tracking error is obtained. The control is capable of handling parametric uncertainty throughout the entire electromechanical system dynamics. The control requires full state feedback (i.e., motor position, velocity, stator currents, and rotor fluxes).","PeriodicalId":260036,"journal":{"name":"1993 (25th) Southeastern Symposium on System Theory","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121072475","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
Surface reconstruction of concealed objects 隐藏物体的表面重建
1993 (25th) Southeastern Symposium on System Theory Pub Date : 1993-03-07 DOI: 10.1109/SSST.1993.522836
D. Knight, J.H. Kim
{"title":"Surface reconstruction of concealed objects","authors":"D. Knight, J.H. Kim","doi":"10.1109/SSST.1993.522836","DOIUrl":"https://doi.org/10.1109/SSST.1993.522836","url":null,"abstract":"A methodology for surface reconstruction that uses distance as the metric in determining an appropriate solution is presented. This metric is used because the primary application of the method is for reconstructing objects inside luggage, which requires a fast solution. Corner points from one contour are mapped to the other contour. The results do not produce a Eulerian path. Additional span lengths have to be added to the graph. The method addresses pathological problems that could occur in reconstructing the object by solving for the contours' center and using the offset of the center to map corner points. Mean field annealing is applied to produce a smooth boundary for corner point detection.","PeriodicalId":260036,"journal":{"name":"1993 (25th) Southeastern Symposium on System Theory","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116491671","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
The application of linear multivariable control to an AGC system 线性多变量控制在AGC系统中的应用
1993 (25th) Southeastern Symposium on System Theory Pub Date : 1993-03-07 DOI: 10.1109/SSST.1993.522756
H. Shaalan
{"title":"The application of linear multivariable control to an AGC system","authors":"H. Shaalan","doi":"10.1109/SSST.1993.522756","DOIUrl":"https://doi.org/10.1109/SSST.1993.522756","url":null,"abstract":"An automatic gain control (AGC) system must maintain an electric energy system at a desired operating level. Linear multivariable control is a suitable tool in this case. It is shown how an LQG (linear quadratic Gaussian) controller can be implemented to an AGC system that uses a proportional-integral (PI) controller. This is demonstrated on a two-area interconnected power system. The LQG controller has the advantage of providing a guaranteed robustness margin as well as tracking performance. Therefore, the system is less sensitive to parameter changes.","PeriodicalId":260036,"journal":{"name":"1993 (25th) Southeastern Symposium on System Theory","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126545617","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
PC based data acquisition for electric machinery instruction 基于PC机的电机指令数据采集
1993 (25th) Southeastern Symposium on System Theory Pub Date : 1993-03-07 DOI: 10.1109/SSST.1993.522747
T. Haskew, T.E. Salem
{"title":"PC based data acquisition for electric machinery instruction","authors":"T. Haskew, T.E. Salem","doi":"10.1109/SSST.1993.522747","DOIUrl":"https://doi.org/10.1109/SSST.1993.522747","url":null,"abstract":"Details on the use of an IBM PC, an eight-channel data acquisition board, and a set of feedback electric machines and control panels to form an electric machinery instruction laboratory bench are provided. The system is described in detail, and the instructional goals that can be accomplished are presented. An example experiment is described, and the results are shown. Several useful post experiment routines for data analysis are discussed.","PeriodicalId":260036,"journal":{"name":"1993 (25th) Southeastern Symposium on System Theory","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126650285","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
Seismic data processing via homomorphic filtering 基于同态滤波的地震数据处理
1993 (25th) Southeastern Symposium on System Theory Pub Date : 1993-03-07 DOI: 10.1109/SSST.1993.522827
A. Davari
{"title":"Seismic data processing via homomorphic filtering","authors":"A. Davari","doi":"10.1109/SSST.1993.522827","DOIUrl":"https://doi.org/10.1109/SSST.1993.522827","url":null,"abstract":"Homomorphic deconvolution, a filtering technique, is used to analyze real seismic data. It can separate the wavelet from the impulse train which is formed by convolution. For illustration purposes, four different signals, resulting from regional event, quarry blast, local blast, and a marine explosion, respectively, are considered. The complex cepstrum is also used to detect multiple echoes in a signal. The results show the effectiveness of the method.","PeriodicalId":260036,"journal":{"name":"1993 (25th) Southeastern Symposium on System Theory","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130456767","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
Response calibration for automated network analyzer systems 自动网络分析系统的响应校准
1993 (25th) Southeastern Symposium on System Theory Pub Date : 1993-03-07 DOI: 10.1109/SSST.1993.522736
W. Zheng, C.E. Smith, L. Wang
{"title":"Response calibration for automated network analyzer systems","authors":"W. Zheng, C.E. Smith, L. Wang","doi":"10.1109/SSST.1993.522736","DOIUrl":"https://doi.org/10.1109/SSST.1993.522736","url":null,"abstract":"An automated response calibration for the Hewlett-Packard Model HP8410 network analyzer system is studied. Response calibration is based on correction of frequency response magnitude and phase system errors. This measurements approach is much faster than the normal VNA 8-term error model because only one standard is required for calibration. System accuracy is comparable to other automated network analyzers. A data acquisition program has been developed to implement response calibration of the HP8410 in order to extend the long-term use of this unit.","PeriodicalId":260036,"journal":{"name":"1993 (25th) Southeastern Symposium on System Theory","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130556727","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
Design of an optimal controller with prescribed eigenvalues for power system 给定特征值的电力系统最优控制器设计
1993 (25th) Southeastern Symposium on System Theory Pub Date : 1993-03-07 DOI: 10.1109/SSST.1993.522758
S. Badran, M. Choudhry
{"title":"Design of an optimal controller with prescribed eigenvalues for power system","authors":"S. Badran, M. Choudhry","doi":"10.1109/SSST.1993.522758","DOIUrl":"https://doi.org/10.1109/SSST.1993.522758","url":null,"abstract":"A technique for assigning the eigenvalues of a system to any desired position through selecting the state weighting matrix, Q, of a linear quadratic regulator (LQR) is presented. This method is capable of placing both real and complex eigenvalues to any desired location without disturbing the rest of the eigenvalues. A physically realizable optimal controller with prescribed eigenvalues for power systems is designed.","PeriodicalId":260036,"journal":{"name":"1993 (25th) Southeastern Symposium on System Theory","volume":"4 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114032463","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
Robust tracking control of a permanent magnet stepper motor driving a mechanical load 驱动机械负载的永磁步进电机鲁棒跟踪控制
1993 (25th) Southeastern Symposium on System Theory Pub Date : 1993-03-07 DOI: 10.1109/SSST.1993.522739
R.C. Speagle, D. Dawson
{"title":"Robust tracking control of a permanent magnet stepper motor driving a mechanical load","authors":"R.C. Speagle, D. Dawson","doi":"10.1109/SSST.1993.522739","DOIUrl":"https://doi.org/10.1109/SSST.1993.522739","url":null,"abstract":"A recently developed control synthesis approach that can be used to design a robust tracking controller for a permanent magnet (PM) stepper motor driving a mechanical load is illustrated. The approach is flexible and easily understood, as it is based on concepts readily identified by most control engineers. The proposed controller compensates for parametric uncertainty in the motor/load model and additive bounded disturbances while yielding a global uniform ultimate bounded (GUUB) stability result for the motor position tracking error.","PeriodicalId":260036,"journal":{"name":"1993 (25th) Southeastern Symposium on System Theory","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120925241","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
Stability and the transient energy method for the classroom 教室稳定性与暂态能量法
1993 (25th) Southeastern Symposium on System Theory Pub Date : 1993-03-07 DOI: 10.1109/SSST.1993.522746
A. Llamas, J. De La Ree
{"title":"Stability and the transient energy method for the classroom","authors":"A. Llamas, J. De La Ree","doi":"10.1109/SSST.1993.522746","DOIUrl":"https://doi.org/10.1109/SSST.1993.522746","url":null,"abstract":"The theory of transient energy and stability is reviewed. Basic concepts including the swing equation, stable and unstable equilibrium points, and the equal area criterion are discussed. A transient energy method and phase plane portraits are investigated. A simple interactive computer program based upon this transient energy method is described.","PeriodicalId":260036,"journal":{"name":"1993 (25th) Southeastern Symposium on System Theory","volume":"258 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116204129","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
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