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[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory最新文献

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The solution to difference equations can be as easy as 1-2-3 差分方程的解可以像1-2-3一样简单
[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory Pub Date : 1988-03-20 DOI: 10.1109/SSST.1988.17056
M. Hargis, E. Twyford, F. Simons
{"title":"The solution to difference equations can be as easy as 1-2-3","authors":"M. Hargis, E. Twyford, F. Simons","doi":"10.1109/SSST.1988.17056","DOIUrl":"https://doi.org/10.1109/SSST.1988.17056","url":null,"abstract":"A discussion is presented of the development of a macro program which solves difference equations, and graphs the time-domain response, using the standard spreadsheet software package Lotus 1-2-3. The object is to enable an electrical engineering student learning about difference equations to see the numerical solution, as well as the steady state response. Other applications of spreadsheet software are discussed.<<ETX>>","PeriodicalId":345412,"journal":{"name":"[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134255699","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
Claudius: an interactive graphical software design method Claudius:一种交互式图形化软件设计方法
[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory Pub Date : 1988-03-20 DOI: 10.1109/SSST.1988.17015
R. Winans
{"title":"Claudius: an interactive graphical software design method","authors":"R. Winans","doi":"10.1109/SSST.1988.17015","DOIUrl":"https://doi.org/10.1109/SSST.1988.17015","url":null,"abstract":"The authors describe Claudius, a proposed graphical software design system for teaching software design. This system uses a goal-driven technique which is language-independent and encourages visualization of patterns and templates which are common in software design. These patterns are represented as flowcharts which can be combined into a single plan. Subprograms are represented with input and output parameters and side effects to fully define the interaction between subprograms and the main program. Alternate views of the program which are represented include a hierarchical diagram showing the scope of subprograms, and a data view which shows the data and the structure of the data. An intelligent tutoring system will assist students in using Claudius. This system will operate as a coach which can suggest what the student should do next and find errors the student has made.<<ETX>>","PeriodicalId":345412,"journal":{"name":"[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133709316","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
Simulation of satellite motion for intra-satellite pointing, acquisition, and tracking 卫星内部指向、获取和跟踪的卫星运动仿真
[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory Pub Date : 1988-03-20 DOI: 10.1109/SSST.1988.17099
M. Greene, D. Konkle
{"title":"Simulation of satellite motion for intra-satellite pointing, acquisition, and tracking","authors":"M. Greene, D. Konkle","doi":"10.1109/SSST.1988.17099","DOIUrl":"https://doi.org/10.1109/SSST.1988.17099","url":null,"abstract":"A simulation in inertial coordinates of the motions of two satellites in low Earth orbit is presented. This simulation is used in a satellite cross-link pointing, accuracy, and tracking study. The simulation allows for arbitrary selection of inclination angles, altitudes, and other initial conditions. The simultaneous simulation of two satellites in different orbits produces data on the relative distances between the satellites in inertial coordinates, the rates of change of these distances, the angles swept out by the satellites' motion, and the rates of change of these angles. Visibility regions and times are also calculated. Cross-angle, the angle between the satellite's last antenna direction and the present vector to the other satellite, is also calculated. The cross-angle rate indicates the required speed of the satellite's pointing system for an undisturbed cross-link.<<ETX>>","PeriodicalId":345412,"journal":{"name":"[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132249448","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
Optimal control of large space structures via generalized inverse matrix 基于广义逆矩阵的大空间结构最优控制
[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory Pub Date : 1988-03-20 DOI: 10.1109/SSST.1988.17129
C. Nguyen, Fang Xiaowen
{"title":"Optimal control of large space structures via generalized inverse matrix","authors":"C. Nguyen, Fang Xiaowen","doi":"10.1109/SSST.1988.17129","DOIUrl":"https://doi.org/10.1109/SSST.1988.17129","url":null,"abstract":"Independent modal space control (IMSC) is a control scheme that decouples the space structure into n controlled modes and second-order subsystems according to n controlled modes and controls each mode independently. It is well known that IMSC eliminates control and observation spillover caused when the conventional coupled modal control scheme is used. The independent control of each mode requires that the number of actuators be equal to the number of modeled modes, which is very high for a faithful modelling of large space structures. The authors propose a control scheme that allows one to use a reduced number of actuators to control all modeled modes suboptimally. In particular, the method of generalized inverse matrices is used to implement the actuators so that the eigenvalues of the closed-loop system are as closed as possible to those specified by the optimal IMSC. Computer simulation of the proposed control scheme on a simply supported beam is given.<<ETX>>","PeriodicalId":345412,"journal":{"name":"[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132710503","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
Solution to the ferroresonant jump problem in three-phase power conditioning systems 三相电力调节系统铁谐振跳变问题的解决
[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory Pub Date : 1988-03-20 DOI: 10.1109/SSST.1988.17006
S. Miri, A. Keyhani
{"title":"Solution to the ferroresonant jump problem in three-phase power conditioning systems","authors":"S. Miri, A. Keyhani","doi":"10.1109/SSST.1988.17006","DOIUrl":"https://doi.org/10.1109/SSST.1988.17006","url":null,"abstract":"An analytical investigation leading to a solution for the ferroresonant jump problem in three-phase conditioning systems is presented. The solution is found through the analysis of the power-conditioning system steady-state behavior. This analysis showed that proper control of the harmonics present in an oscillatory mode can lead to the suppression of the oscillation and hence force the system into the desired mode of operation. The proposed solution has been successfully tested in the laboratory and can be easily implemented for the existing systems in the field.<<ETX>>","PeriodicalId":345412,"journal":{"name":"[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114902864","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
Trajectory control of robot manipulators with closed-kinematic chain mechanism 闭式运动链机构机械臂轨迹控制
[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory Pub Date : 1988-03-20 DOI: 10.1109/SSST.1988.17093
C. Nguyen, F. Pooran, T. Premack
{"title":"Trajectory control of robot manipulators with closed-kinematic chain mechanism","authors":"C. Nguyen, F. Pooran, T. Premack","doi":"10.1109/SSST.1988.17093","DOIUrl":"https://doi.org/10.1109/SSST.1988.17093","url":null,"abstract":"The authors consider the problem of Cartesian trajectory control of a closed kinematic-chain-mechanism robot manipulator, recently built to study the assembly of NASA hardware for the future space station. The study is performed by computer simulation and experimentation for tracking of three different paths: a straight line, a sinusoid and a circle. Linearization and pole placement methods are used to design controller gains. Results show that the controllers are robust and there are good agreements between simulation and experimentation. They also show excellent tracking quality and small overshoots.<<ETX>>","PeriodicalId":345412,"journal":{"name":"[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133292233","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
Computation of the 2D system frequency response 二维系统频率响应的计算
[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory Pub Date : 1988-03-20 DOI: 10.1109/SSST.1988.17111
K. Benmahammed
{"title":"Computation of the 2D system frequency response","authors":"K. Benmahammed","doi":"10.1109/SSST.1988.17111","DOIUrl":"https://doi.org/10.1109/SSST.1988.17111","url":null,"abstract":"A technique for the computation of the magnitude and phase of 2D systems is presented. This technique is based on the extension of a 1D algorithm. The algorithm does not require any complex arithmetic, and can easily be implemented a personal computer, on which it requires less storage than the 2D discrete Fourier transform algorithm.<<ETX>>","PeriodicalId":345412,"journal":{"name":"[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133191345","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: 4
A laboratory experiment for transformer modeling in the presence of harmonic distortion 谐波畸变下变压器模型的室内实验研究
[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory Pub Date : 1988-03-20 DOI: 10.1109/SSST.1988.17097
R. Thompson, E. Makram, A. Girgis
{"title":"A laboratory experiment for transformer modeling in the presence of harmonic distortion","authors":"R. Thompson, E. Makram, A. Girgis","doi":"10.1109/SSST.1988.17097","DOIUrl":"https://doi.org/10.1109/SSST.1988.17097","url":null,"abstract":"The authors investigate the variation of transformer parameters (self and mutual) with frequency by performing a laboratory experiment. The test measures a hybrid set of parameters on a single-phase and a three-phase transformer. This test investigates not only the variation of short-circuit parameters with frequency, but also the variation of open-circuit parameters with frequency. The authors extend the study to include the transformer load test. In this test, the load terminal voltages at different harmonic frequencies are measured.<<ETX>>","PeriodicalId":345412,"journal":{"name":"[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132404273","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
On fast algorithms for adaptive control 快速自适应控制算法研究
[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory Pub Date : 1988-03-20 DOI: 10.1109/SSST.1988.17110
X. Gang, J.L. Arevena
{"title":"On fast algorithms for adaptive control","authors":"X. Gang, J.L. Arevena","doi":"10.1109/SSST.1988.17110","DOIUrl":"https://doi.org/10.1109/SSST.1988.17110","url":null,"abstract":"The authors study one alternative for improving the computational efficiency of control algorithms. The case considered is a self-tuning control strategy. Attention is focused on the parameter estimation stage. The strategy used is that of simplifying computations in the estimation algorithms. The reduction in computational delay is expected to offset a possible loss in performance due to suboptimal estimates. Several variations of the recursive-least-square algorithm are considered.<<ETX>>","PeriodicalId":345412,"journal":{"name":"[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124149876","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
Stochastic control for singular systems 广义系统的随机控制
[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory Pub Date : 1988-03-20 DOI: 10.1109/SSST.1988.17037
M. Shafiee
{"title":"Stochastic control for singular systems","authors":"M. Shafiee","doi":"10.1109/SSST.1988.17037","DOIUrl":"https://doi.org/10.1109/SSST.1988.17037","url":null,"abstract":"A state-space formulation for singular linear stationary systems with stationary random inputs is presented. Some preliminary steps in the derivation of an optimum control strategy in the sense of minimum-error variance using a Drazin inverse is used to form a generalized covariance matrix equation. The necessary and sufficient conditions for the solution of this equation, along with a novel technique for solving it are included. An example is provided to illustrate the technique.<<ETX>>","PeriodicalId":345412,"journal":{"name":"[1988] Proceedings. The Twentieth Southeastern Symposium on System Theory","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127718357","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
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