Advances in Communications : Volume I of a selection of papers from INFO II, the Second International Conference on Information Sciences and Systems, University of Patras, Greece, July 9-14, 1979

The technical program of the Conference consisted of technical sessions that covered all-important aspects of control, informa­ tion processing/communications, and computers. In particular, there were numerous technical sessions covering all-important aspects of control, such as control theory, control applications, estima­ tion, identification, adaptive systems, linear systems, stability, cybernetics, computational methods, and simulation. The program also included many sessions on information processing/communicati­ ons, such as information theory, coding, signal analysis, signal processing, communication theory, satellite communications, pat­ tern recognition and image processing. Moreover, there were sever­ al sessions on computers, in particular on computer systems, com­ puter communication networks, and automata. Finally, the technical program included numerous sessions on important applications of systems technology, such as power, energy modeling and planning, earth resources, transportation, economics and management, and physiological systems. In view of the broad scope of the Conference technical program and the extensive coverage of many important aspects of systems theory and applications by internationally known researchers, we hope that this collection of papers will be a useful supplement to the published literature and textbooks used for research and teaching. For the success of the Conference we are indebted to a great many people and institutions, primarily to the authors of the papers, without whom the conference would not have existed, and this book would not have materialized. We are particularly indebted to the great majority of them who paid some or all of their own expenses. Front Matter....Pages i-xiv Front Matter....Pages 1-1 Generalized Information and Natural (FUZZY) Language....Pages 3-10 Distortion-Rate Theory and Filtering....Pages 11-15 Asymptotically Mean Stationary Sources and Channels....Pages 16-21 An Information Theory Approach to the Approximation of Functions....Pages 22-29 Uncertainty and Entropy-Quantum Information Systems....Pages 30-38 The Reduction of the Wave-Function and the Reduction of Entropy....Pages 39-44 On Some Functional Equations from Additive and Nonadditive Measures - II....Pages 45-50 Information and Complex Systems....Pages 51-58 The Evolution of Entropy and of Other Statistical Parameters of Written Greek....Pages 59-68 Statistical and Non Statistical Measures of Information....Pages 69-76 Storage Versus Performance Exchange in Probabilistic Question-Answering Systems....Pages 77-80 Spectral Properties of Bipolar Line Codes with Zero Extraction....Pages 81-88 Analysis and Design of an Error Correction Code for a Linear Delta Modulation System....Pages 89-95 The Entropy of Written Italian....Pages 96-100 Cutoff Rates when Decoding with Approximate Channel Statistics....Pages 101-110 Characterization and Performance Evaluation of a (56,28) Code....Pages 111-116 Weight Distribution of Some Cyclic Codes of MacWilliams....Pages 117-122 On Weakly Prefix Subsemigroups of a Free Semigroup....Pages 123-129 A Cellular Approach for the Implementation of Digital Signal Processing Algorithms....Pages 130-137 A Method for Obtaining Second-Order Digital Filter Structures with Prescribed Pole-Zero Quantization Errors....Pages 138-145 Front Matter....Pages 1-1 Normalized Gradient Algorithms for Adaptive Recursive Digital Filters....Pages 146-155 A Class of Second-Order Digital Filters Characterized by Very Small Pole Displacements Due to Parameter Quantization....Pages 156-164 Improvement of the Reconstruction and Control of the Compressor Output....Pages 165-172 Two-Dimensional Digital Filtering. Basic Considerations and Subroutines for Implementation....Pages 173-182 Frequency Response of Multi-Dimensional Linear Phase FIR Digital Filters....Pages 183-191 Multi-Dimensional Digital Windows....Pages 192-199 Front Matter....Pages 201-201 Cyclo-Ergodicity, Part I: Application to Spectral Extraction....Pages 203-209 Asymptotic Inference in Continuous Time Markov Processes....Pages 210-217 Transmultiplexing: Factors Influencing the Design of TDM to FDM Conversion....Pages 218-225 Realisable Data Transmission Filters with Optimal Properties....Pages 226-231 Synchronization Strategies in Digital Data Communication....Pages 232-237 On Some Polling Strategies....Pages 238-244 A Digital Transmitter and Receiver for Automatic Monitoring of Changes in the State of a Group of Switches....Pages 245-252 Switched Polarity DPLL’s for PSK Demodulation....Pages 253-260 Combination of the Duobinary Technique with FM for Achieving High Bit Transmission Rates....Pages 261-268 Signal Parameter Optimization for the Impulsive Noise Channel....Pages 269-281 Hybrid Correlator Based on Exponential Delta Sigma Modulation....Pages 282-288 The Design of a Broadband Delta Modulator with Optimum Performance....Pages 289-296 A New Protocol for a Distributed Loop Communication Network....Pages 297-304 Fiber Optics vs. Conventional Transmission Lines in Distance Communication Systems....Pages 305-312 Front Matter....Pages 201-201 Distributed Processing Network Survivability....Pages 313-320 Information Theoretic Approximations for M/G/1 Queuing Systems....Pages 321-332 Queuing Analysis of Random Access Protocols....Pages 333-340 Sharing a Processor for Monitoring Changes in Quality of Several Communication Links....Pages 341-346 Adaptive Bifurcated Routing Algorithm with Threshold....Pages 347-356 Congestion Avoidance in Hierarchical Packet Switched Networks....Pages 357-366 Congestion Control in Packet Networks....Pages 367-376 Congestion Control Techniques for Packet Networks....Pages 377-385 Routing and Flow Control in Virtual Circuit Networks....Pages 386-394 Towards a Unified Definition of Traffic Control in Communications Networks....Pages 395-408 An Information Theoretic Approximation for Modelling Computer Network Nodal Queuing Delay: A Congestion Measure....Pages 409-416 In-Orbit Measurements of the RF Subsystem of Communications Satellites....Pages 417-430 Multiple Access and Location Performance of the Tiros-N Data Collection System....Pages 431-436 Synchronization and Synchronous Oscillators....Pages 437-448 Front Matter....Pages 449-449 Relevance of a Posteriori Probability Errors in Bayesian Classification....Pages 451-456 A Spatial Filtering Technique for MSS Unsupervised Classification Problems....Pages 457-464 Factor Analysis and Clustering....Pages 465-469 A Methodology for Graphical Identification....Pages 470-477 Transmission Line Protection Using Pattern Classification Techniques....Pages 478-484 Field Boundary Location by Pattern Recognition Methods....Pages 485-489 Front Matter....Pages 449-449 A Case of Speaker Identification....Pages 490-497 Prediction and Verification of Hypotheses in a Speech Recognition System....Pages 498-505 Synthesis of Greek Speech with Elementary Speech Segments....Pages 506-515 Back Matter....Pages 517-524