Pub Date : 1990-08-09DOI: 10.1109/ICSYSE.1990.203200
J. G. Kelly, R. Carpenter, J. Tague, N. Haddad
The active sonar classification problem is considered. To perform active classification, a known waveform is transmitted into a medium and directed towards a region called the test volume. An array of sensors is used to pick up the backscattered signal energy reflected from the cells of the test volume. The data are input into a processing algorithm. The processor is to decide whether an object is present and, if so, what kind of object is present. A systematic method for evaluating classifier performance is derived. A sensitivity analysis and interpretation of processor performance is made. An analysis of processor performance as a function of angular resolution is described
{"title":"Optimum object classification with active sonar: new theoretical results","authors":"J. G. Kelly, R. Carpenter, J. Tague, N. Haddad","doi":"10.1109/ICSYSE.1990.203200","DOIUrl":"https://doi.org/10.1109/ICSYSE.1990.203200","url":null,"abstract":"The active sonar classification problem is considered. To perform active classification, a known waveform is transmitted into a medium and directed towards a region called the test volume. An array of sensors is used to pick up the backscattered signal energy reflected from the cells of the test volume. The data are input into a processing algorithm. The processor is to decide whether an object is present and, if so, what kind of object is present. A systematic method for evaluating classifier performance is derived. A sensitivity analysis and interpretation of processor performance is made. An analysis of processor performance as a function of angular resolution is described","PeriodicalId":259801,"journal":{"name":"1990 IEEE International Conference on Systems Engineering","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132282289","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 : 1990-08-09DOI: 10.1109/ICSYSE.1990.203204
T. Alameldin, N. Badler, T. Sobh
An efficient system for computing the 3D reachable workspace for redundant manipulators with joint limits is presented. In this system, the 3D reachable workspace problem is decomposed into two major subproblems. They are workspace point generation and surface computation. Different algorithms are described that are used to build these modules. The advantages offered by the system include modularity, flexibility, parallel implementation, adaptability, and generality
{"title":"An adaptive and efficient system for computing the 3D reachable workspace","authors":"T. Alameldin, N. Badler, T. Sobh","doi":"10.1109/ICSYSE.1990.203204","DOIUrl":"https://doi.org/10.1109/ICSYSE.1990.203204","url":null,"abstract":"An efficient system for computing the 3D reachable workspace for redundant manipulators with joint limits is presented. In this system, the 3D reachable workspace problem is decomposed into two major subproblems. They are workspace point generation and surface computation. Different algorithms are described that are used to build these modules. The advantages offered by the system include modularity, flexibility, parallel implementation, adaptability, and generality","PeriodicalId":259801,"journal":{"name":"1990 IEEE International Conference on Systems Engineering","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130896421","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 : 1990-08-09DOI: 10.1109/ICSYSE.1990.203195
T. Hinamoto
The lossless bounded-real lemma for 2D systems is developed. This is based on the second local state-space (LSS) model of E. Fornasini and G. Marchesini (Math. Syst. Theory, vol.12, p.59-72, 1978; IEEE Trans. Circuits Syst. vol.CAS-27, p.1210-7, 1980). A condition for a 2D system to be bounded-real is also investigated. Similar arguments can be applied to the Roesser LSS model. The lossless bounded-real property is treated in conjunction with the asymptotic stability and the overflow oscillation in 2D systems
{"title":"The bounded-real lemma for two-dimensional systems","authors":"T. Hinamoto","doi":"10.1109/ICSYSE.1990.203195","DOIUrl":"https://doi.org/10.1109/ICSYSE.1990.203195","url":null,"abstract":"The lossless bounded-real lemma for 2D systems is developed. This is based on the second local state-space (LSS) model of E. Fornasini and G. Marchesini (Math. Syst. Theory, vol.12, p.59-72, 1978; IEEE Trans. Circuits Syst. vol.CAS-27, p.1210-7, 1980). A condition for a 2D system to be bounded-real is also investigated. Similar arguments can be applied to the Roesser LSS model. The lossless bounded-real property is treated in conjunction with the asymptotic stability and the overflow oscillation in 2D systems","PeriodicalId":259801,"journal":{"name":"1990 IEEE International Conference on Systems Engineering","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130240748","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 : 1990-08-09DOI: 10.1109/ICSYSE.1990.203220
Y. Shiu, S. Ahmad
The ellipse projected from a circle or a sphere in 3D can be used to recover the position of the circle or the sphere, if the model radius is known. A closed-form solution for the 3D position and orientation of a circular feature and the 3D position of a spherical feature is described. There are two general solutions for the circular feature, but there is only one solution when the surface normal of the circular feature passes through the center of projection. This method handles spherical as well as circular features. It has closed-form solutions, and it gives only the necessary number of solutions (no redundant solutions)
{"title":"Viewpoint determination of cylinders and spheres from a single view","authors":"Y. Shiu, S. Ahmad","doi":"10.1109/ICSYSE.1990.203220","DOIUrl":"https://doi.org/10.1109/ICSYSE.1990.203220","url":null,"abstract":"The ellipse projected from a circle or a sphere in 3D can be used to recover the position of the circle or the sphere, if the model radius is known. A closed-form solution for the 3D position and orientation of a circular feature and the 3D position of a spherical feature is described. There are two general solutions for the circular feature, but there is only one solution when the surface normal of the circular feature passes through the center of projection. This method handles spherical as well as circular features. It has closed-form solutions, and it gives only the necessary number of solutions (no redundant solutions)","PeriodicalId":259801,"journal":{"name":"1990 IEEE International Conference on Systems Engineering","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129993227","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 : 1990-08-09DOI: 10.1109/ICSYSE.1990.203141
L. Hong, D. Brzakovic
A method for noise removal in image processing is described. The method does not require any prior knowledge about the image, and it uses a signal model that represents two independent dynamics of the signal. This model is used as the basis for adaptive Kalman filtering. The method is based on the generalised likelihood ratio. It has the capability to retain fast transients that are attributed to important changes in the images while it removes the noise added to the slow transients. The method has been implemented in 1D fashion. With an easy extension, it can be readily implemented in a 2D fashion. Satisfactory results obtained when processing 1D and 2D signals are shown
{"title":"GLR-based adaptive Kalman filtering in noise removal","authors":"L. Hong, D. Brzakovic","doi":"10.1109/ICSYSE.1990.203141","DOIUrl":"https://doi.org/10.1109/ICSYSE.1990.203141","url":null,"abstract":"A method for noise removal in image processing is described. The method does not require any prior knowledge about the image, and it uses a signal model that represents two independent dynamics of the signal. This model is used as the basis for adaptive Kalman filtering. The method is based on the generalised likelihood ratio. It has the capability to retain fast transients that are attributed to important changes in the images while it removes the noise added to the slow transients. The method has been implemented in 1D fashion. With an easy extension, it can be readily implemented in a 2D fashion. Satisfactory results obtained when processing 1D and 2D signals are shown","PeriodicalId":259801,"journal":{"name":"1990 IEEE International Conference on Systems Engineering","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132181864","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 : 1990-08-09DOI: 10.1109/ICSYSE.1990.203123
J. Quero, E. Camacho
A way in which Hopfield (see J.J. Hopfield, Proc. Nat. Acad. Sci. USA, vol.81, p.3088-92, (1984)) networks can be used to implement generalized predictive controllers is presented. A CARMA model of the process to be controlled, which is valid for most processes in industry, is used to illustrate the method. A set of recursive formulas to obtain the network parameters is given
{"title":"Neural generalized predictive self-tuning controllers","authors":"J. Quero, E. Camacho","doi":"10.1109/ICSYSE.1990.203123","DOIUrl":"https://doi.org/10.1109/ICSYSE.1990.203123","url":null,"abstract":"A way in which Hopfield (see J.J. Hopfield, Proc. Nat. Acad. Sci. USA, vol.81, p.3088-92, (1984)) networks can be used to implement generalized predictive controllers is presented. A CARMA model of the process to be controlled, which is valid for most processes in industry, is used to illustrate the method. A set of recursive formulas to obtain the network parameters is given","PeriodicalId":259801,"journal":{"name":"1990 IEEE International Conference on Systems Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122231113","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 : 1990-08-09DOI: 10.1109/ICSYSE.1990.203230
A. Toy, K. Kumar
The characteristics and performance of a brushless DC motor used to rotate diskettes (floppy disks) at predetermined, constant rotational speeds have been investigated and analyzed. Such motors are highly integrated, both electronically and mechanically. The difficulties encountered in conducting an empirical study of the open-loop performance of these motors are discussed. The experimental methods used to establish the open-loop, electromechanical model of the motor and to validate the assumption of torque linearity are described. The empirical results are compared to the results predicted by the model, and the effects of a variety of typical diskette loads for the motor are presented
{"title":"An experimental investigation and analysis of a brushless DC motor for diskette applications","authors":"A. Toy, K. Kumar","doi":"10.1109/ICSYSE.1990.203230","DOIUrl":"https://doi.org/10.1109/ICSYSE.1990.203230","url":null,"abstract":"The characteristics and performance of a brushless DC motor used to rotate diskettes (floppy disks) at predetermined, constant rotational speeds have been investigated and analyzed. Such motors are highly integrated, both electronically and mechanically. The difficulties encountered in conducting an empirical study of the open-loop performance of these motors are discussed. The experimental methods used to establish the open-loop, electromechanical model of the motor and to validate the assumption of torque linearity are described. The empirical results are compared to the results predicted by the model, and the effects of a variety of typical diskette loads for the motor are presented","PeriodicalId":259801,"journal":{"name":"1990 IEEE International Conference on Systems Engineering","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114079909","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 : 1990-08-09DOI: 10.1109/ICSYSE.1990.203203
H.-C. Yan, S. Ahmad
During an assembly operation it is necessary to locate an object precisely by means of point contact fixtures. These fixtures must secure the object during the assembly while also allowing easy access into and out of the fixturing system before and after the assembly without totally dismantling the entire fixturing system. The method of analyzing fixturing points of H. Asada and A.B. By (IEEE J. Robotics and Automation, vol.RA-1, no.2, p.86-94, 1985) is extended to develop formal mathematical techniques to determine the state of a workpart in the fixturing system. These techniques consist of performing an optimization to determine whether the part is fixed in the fixture or to determine the optimal directions in which to move the part into or out of the fixturing system. An example is given to illustrate the effectiveness of the methodology
{"title":"Kinematic analysis of fixturing systems for robot aided assembly","authors":"H.-C. Yan, S. Ahmad","doi":"10.1109/ICSYSE.1990.203203","DOIUrl":"https://doi.org/10.1109/ICSYSE.1990.203203","url":null,"abstract":"During an assembly operation it is necessary to locate an object precisely by means of point contact fixtures. These fixtures must secure the object during the assembly while also allowing easy access into and out of the fixturing system before and after the assembly without totally dismantling the entire fixturing system. The method of analyzing fixturing points of H. Asada and A.B. By (IEEE J. Robotics and Automation, vol.RA-1, no.2, p.86-94, 1985) is extended to develop formal mathematical techniques to determine the state of a workpart in the fixturing system. These techniques consist of performing an optimization to determine whether the part is fixed in the fixture or to determine the optimal directions in which to move the part into or out of the fixturing system. An example is given to illustrate the effectiveness of the methodology","PeriodicalId":259801,"journal":{"name":"1990 IEEE International Conference on Systems Engineering","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126895547","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 : 1990-08-09DOI: 10.1109/ICSYSE.1990.203174
George K Stylios
Two of the most troublesome sewability problems in garment manufacture, seam pucker and sewing damage, are considered. Intelligent computer-based systems which have been developed to forecast those problems before manufacture for the benefit of production efficiency and garment quality are discussed. The system for the prognosis of seam pucker is based on a mathematical model developed from extensive sewing experiments and on the measurement of fabric thickness and flexural rigidity. The sewing damage system is based on instrumentation and interfacing of an industrial sewing machine with a computer for real-time dynamic measurements of sewing data
{"title":"Prognosis of sewability problems in garment manufacture using computer-based technology","authors":"George K Stylios","doi":"10.1109/ICSYSE.1990.203174","DOIUrl":"https://doi.org/10.1109/ICSYSE.1990.203174","url":null,"abstract":"Two of the most troublesome sewability problems in garment manufacture, seam pucker and sewing damage, are considered. Intelligent computer-based systems which have been developed to forecast those problems before manufacture for the benefit of production efficiency and garment quality are discussed. The system for the prognosis of seam pucker is based on a mathematical model developed from extensive sewing experiments and on the measurement of fabric thickness and flexural rigidity. The sewing damage system is based on instrumentation and interfacing of an industrial sewing machine with a computer for real-time dynamic measurements of sewing data","PeriodicalId":259801,"journal":{"name":"1990 IEEE International Conference on Systems Engineering","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123188364","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 : 1990-08-09DOI: 10.1109/ICSYSE.1990.203222
P. Li, R. Nutter
A landmark recognition system is proposed for autonomous vehicle navigation applications. This system uses artificial neural nets to classify patterns in multiple feature spaces characterized by different sensors. The core classifier, a bidirectional associative memory, has been partially simulated by a computer program and initial results show satisfactory performance
{"title":"A landmark recognition system using artificial neural nets","authors":"P. Li, R. Nutter","doi":"10.1109/ICSYSE.1990.203222","DOIUrl":"https://doi.org/10.1109/ICSYSE.1990.203222","url":null,"abstract":"A landmark recognition system is proposed for autonomous vehicle navigation applications. This system uses artificial neural nets to classify patterns in multiple feature spaces characterized by different sensors. The core classifier, a bidirectional associative memory, has been partially simulated by a computer program and initial results show satisfactory performance","PeriodicalId":259801,"journal":{"name":"1990 IEEE International Conference on Systems Engineering","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117201576","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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