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E-raamat: Microelectronic Design of Fuzzy Logic-Based Systems

(IMSE-CNM, Sevilla, Spain), (IMSE-CNM, Sevilla, Spain), (IMSE-CNM, Sevilla, Spain), (IMSE-CNM, Sevilla, Spain), (CICA Edificio CICA, Sevilla, Spain)
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This guide focuses on the means of mapping fuzzy concepts into working silicon. It explains the methodologies, procedures, circuit techniques, and CAD tools necessary for low-cost solutions compatible with existing digital and analog processing technologies. The book aims to provide a comprehensive discussion of the theoretical and practical issues concerning the hardware design of fuzzy systems, with special emphasis on microelectronic realizations. It serves both as a self-contained reference for scientists and engineers involved with knowledge-based computational techniques, and as a text for advanced courses on subjects such as non-conventional processors, advanced integrated circuit design, VLSI microsystems design, and fuzzy software design. The authors are affiliated with the University of Sevilla. Annotation c. Book News, Inc., Portland, OR (booknews.com)

Fuzzy logic has virtually exploded over the landscape of emerging technologies, becoming an integral part of myriad applications and a standard tool for engineers. Until recently, most of the attention and applications have centered on fuzzy systems implemented in software. But these systems are limited. Problems that require real-time operation, low area, or low power consumption demand hardware designed to the fuzzy paradigm - and engineers with the background and skills to design it.

Microelectronic Design of Fuzzy Logic-Based Systems offers low-cost answers to issues that software cannot resolve. From the theoretical, architectural, and technological foundation to design tools and applications, it serves as your guide to effective hardware realizations of fuzzy logic.

  • Review fuzzy logic theory and the basic issues of fuzzy sets, operators, and inference mechanisms
  • Explore the trade-offs between efficient theoretical behavior and practical hardware realizations
  • Discover the properties of the possible microelectronic realizations of fuzzy systems - conventional processors, fuzzy coprocessors, and fuzzy chips
  • Investigate the design of fuzzy chips that implement the whole fuzzy inference method into silicon
  • Analyze analog, digital, and mixed-signal techniques
  • Reduce your design effort for fuzzy systems with CAD tools - learn the requirements they should meet and survey current environments.
  • Put it all together - see examples and case studies illustrating how all of this is used to solve particular problems related to control and neuro-fuzzy applications
  • Introduction
    1(6)
    Methods for Information Representation and Processing
    1(1)
    Fuzzy Sets and Fuzzy Logic
    2(1)
    A Brief History of Fuzzy Logic
    3(1)
    Fuzzy Logic Application Domain
    4(2)
    References
    6(1)
    Fuzzy Set Theory
    7(12)
    Fuzzy Sets
    7(4)
    The Concept of Membership Function
    8(2)
    Terminology for Fuzzy Sets
    10(1)
    Operations with Fuzzy Sets
    11(4)
    Union, Intersection, and Complement
    11(1)
    Fuzzy Intersection: t-Norms
    12(1)
    Fuzzy Union: s-Norms
    13(1)
    Fuzzy Complement: c-Norms
    14(1)
    Properties of Fuzzy Sets
    15(1)
    Fuzzy Relations
    15(3)
    Composition of Fuzzy Relations
    16(2)
    References
    18(1)
    Fuzzy Inference Systems
    19(24)
    Linguistic Variables
    19(1)
    Fuzzy Rules
    20(5)
    Linguistic Connectives
    20(1)
    Implication Function
    21(4)
    Approximate Reasoning Techniques
    25(4)
    Generalized Modus Ponens/Tollens
    25(1)
    Compositional Rule of Inference
    26(1)
    Aggregation Operator
    27(2)
    Rule-Based Inference Mechanisms
    29(2)
    Min-Max Inference
    30(1)
    Product-Sum Inference
    30(1)
    Defuzzification Methods
    31(8)
    Conventional Defuzzification Methods
    32(2)
    Simplified Defuzzification Methods
    34(5)
    Types of Fuzzy Systems
    39(1)
    Structure of a Fuzzy System
    40(2)
    References
    42(1)
    Fuzzy System Development
    43(30)
    Definition of a Fuzzy System
    43(5)
    Selection of System Variables
    43(2)
    Rule Base Definition
    45(3)
    Selection of Fuzzy Operators
    48(1)
    CAD Tools for Fuzzy Systems
    48(7)
    Specification Language
    49(2)
    Facilities for System Definition
    51(1)
    Fuzzy Operators
    51(1)
    Integration with Other Tools
    52(1)
    Facilities for Tuning, Verification, and Analysis
    53(1)
    Synthesis Capabilities
    53(2)
    The Xfuzzy Development Environment
    55(16)
    The XFL Language
    57(1)
    Structure of an XFL Definition
    57(8)
    Describing Fuzzy Systems with Xfuzzy
    65(6)
    Software Synthesis of XFL-Based Systems
    71(1)
    References
    71(2)
    Fuzzy System Verification
    73(28)
    Learning Techniques for Fuzzy Systems
    74(11)
    The Error Function
    75(2)
    Gradient Descent Algorithms
    77(5)
    Other Supervised Learning Algorithms
    82(3)
    Learning on XFL-Based Systems
    85(6)
    Command Line Interface
    88(1)
    Graphical User Interface
    88(3)
    Simulation of Fuzzy Systems
    91(1)
    Simulation of XFL-Based Systems
    92(4)
    Command Line Interface
    94(1)
    Graphical User Interface
    95(1)
    On-Line Verification of XFL-Based Systems
    96(4)
    References
    100(1)
    Hardware Realization of Fuzzy Systems
    101(24)
    Fuzzy System Implementations Depending on the Application
    101(4)
    Fuzzy System Realizations with General-Purpose Processors
    105(4)
    Parallelism of Fuzzy Systems
    105(1)
    Non-Standard Operations of Fuzzy Systems
    105(1)
    Hardware Expansion of General-Purpose Processors
    106(3)
    Fuzzy System Realizations with Dedicated Hardware
    109(12)
    Hardware Realization Strategies
    109(3)
    Implementation Techniques of Integrated Circuits
    112(3)
    Design Methodologies of Integrated Circuits
    115(1)
    Analog and Digital Design Styles
    116(5)
    References
    121(4)
    Continuous-Time Analog Techniques for Designing Fuzzy Integrated Circuits
    125(56)
    The First Analog Fuzzy Integrated Circuits
    125(2)
    Fully Parallel Architectures
    127(9)
    Rule by Rule Architecture
    128(2)
    Architecture That Shares Circuitry
    130(2)
    Active Rule-Driven Architecture
    132(4)
    Fuzzification Stage
    136(9)
    Transconductance-Mode MFCs
    137(3)
    Current-Mode MFCs
    140(5)
    Rule Processing Stage
    145(13)
    Minimum and Maximum Operators
    146(5)
    Product Operators
    151(6)
    Scaling Operators
    157(1)
    Addition Operators
    158(1)
    Output Stage
    158(9)
    Fuzzy Representation of Consequents
    160(1)
    Parametric Representation of Consequents
    161(6)
    Design of a Current-Mode CMOS Prototype
    167(9)
    References
    176(5)
    Discrete-Time Analog Techniques for Designing Fuzzy Integrated Circuits
    181(28)
    Sequential Architectures
    182(3)
    Sequential Architecture for Mamdani-Type Fuzzy Systems
    182(2)
    Sequential Architecture for Singleton Fuzzy Systems
    184(1)
    Fuzzification Stage
    185(4)
    Serial MFC
    186(1)
    Parallel MFC
    187(2)
    Rule Processing Stage
    189(6)
    Minimum and Maximum Operators
    189(3)
    Addition and Scaling Operators
    192(2)
    Memory Cells
    194(1)
    Output Stage
    195(7)
    Fuzzy Representation of Consequents: Accumulator Circuits
    195(1)
    Parametric Representation of Consequents: Discrete-Time Multiplier/Divider Circuits
    196(6)
    Timing and Inference Speed of Discrete-Time Singleton Fuzzy ICs
    202(1)
    Design of an SC CMOS Prototype
    203(4)
    References
    207(2)
    Digital Techniques for Designing Fuzzy Integrated Circuits
    209(30)
    The First Digital Fuzzy Integrated Circuits
    209(2)
    Architectures of Digital Fuzzy Integrated Circuits
    211(5)
    Parallel Rule Processing Architectures
    211(2)
    Sequential Rule Processing Architectures
    213(1)
    Active Rule-Driven Architectures
    214(2)
    Fuzzification Stage
    216(4)
    Memory-Based Approach
    216(1)
    Algorithm-Based Approach
    217(3)
    Rule Processing and Defuzzification Stages
    220(3)
    Active Rule-Driven Architecture with Simplified Defuzzification Methods
    223(13)
    Implementation Options
    224(2)
    Operation Modes and Timing Schemes
    226(1)
    Performance Analysis
    227(5)
    Prototypes
    232(4)
    References
    236(3)
    Fuzzy System Synthesis
    239(24)
    Hardware Synthesis of Fuzzy Systems
    239(2)
    Describing Fuzzy Systems with a Hardware Description Language: VHDL
    241(4)
    Modeling Fuzzy Systems with VHDL
    243(1)
    Fuzzy System Synthesis from VHDL
    244(1)
    Tools for Hardware Synthesis in Xfuzzy
    245(14)
    Synthesis Based on Off-Line Strategies
    245(3)
    Using xftl
    248(1)
    Synthesis Based on On-Line Strategies
    249(3)
    VHDL Component Library
    252(2)
    xfvhdl Output Files
    254(2)
    Using xfvhdl
    256(2)
    Limitations to the XFL Model
    258(1)
    A Design Methodology for Fuzzy Systems
    259(3)
    References
    262(1)
    Fuzzy Systems as Controllers
    263(22)
    Conventional Control Systems
    264(3)
    Fuzzy Control Systems
    267(6)
    Components of a Fuzzy Control System
    269(2)
    Fuzzy Controller Development
    271(2)
    Application Example: Ball Suspended by an Airflow
    273(10)
    Controller Definition
    273(3)
    System Simulation
    276(2)
    On-Line Verification of the Controller
    278(3)
    Hardware Design and Implementation of the Controller
    281(2)
    References
    283(2)
    Fuzzy Systems as Approximators
    285(26)
    Approximation Capability of Fuzzy Systems
    286(7)
    Local Piecewise Interpolation
    286(1)
    Analysis of Singleton Fuzzy Systems
    287(6)
    Applications Using Off-Chip Learning
    293(7)
    Modeling of Non-Linear Static Systems
    293(2)
    Analysis and Discussion of FPGA Implementations
    295(5)
    Applications Using On-Chip Learning
    300(9)
    Analysis and Discussion of ASIC Implementations
    300(3)
    Identification of a Dynamic Plant
    303(1)
    Prediction of Time Series
    304(2)
    Adaptive Noise Cancellation System
    306(3)
    References
    309(2)
    Index 311


    Iluminada Baturone, Angel Barriga, Carlos Jimenez-Fernandez, Diego R. Lopez, Santiago Sanchez-Solano