Doa01
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| Author | : Gordon Blair |
| Publisher | : I E E E |
| Total Pages | : 382 |
| Release | : 2001 |
| Genre | : Computers |
| ISBN | : 9780769513003 |
Fundamentals of distributed object systems and their use to solve problems in industrial applications are the focus of these papers from a September 2001 symposium. Contributors include researchers who provide technical and theoretical solutions, practitioners who show how distributed object systems are used to solve real world problems, and users who are interested in understanding how distributed object technology can be exploited in their application domains. Themes are support for mobility, monitoring, and management, meta-data services, enterprise architectures/workflow, reflection and reconfiguration, multimedia, and fault-tolerance. Some subjects include transparent dissemination of adaptors in Jini, a collaborative word processing system using a CORBA-based workflow framework, and developing mobile agent organizations. Lacks a subject index. Annotation c. Book News, Inc., Portland, OR (booknews.com).
| Author | : Won Y. Yang |
| Publisher | : Won Y. Yang |
| Total Pages | : 518 |
| Release | : 2015-03-02 |
| Genre | : Antiques & Collectibles |
| ISBN | : 8972839965 |
Chapter 1: Fourier Analysis................................................................................................................... 1 1.1 CTFS, CTFT, DTFT, AND DFS/DFT....................................................................................... 1 1.2 SAMPLING THEOREM.......................................................................................................... 16 1.3 FAST FOURIER TRANSFORM (FFT)................................................................................. 19 1.3.1 Decimation-in-Time (DIT) FFT..................................................................................... 19 1.3.2 Decimation-in-Frequency (DIF) FFT............................................................................ 22 1.3.3 Computation of IDFT Using FFT Algorithm................................................................ 23 1.4 INTERPRETATION OF DFT RESULTS............................................................................. 23 1.5 EFFECTS OF SIGNAL OPERATIONS ON DFT SPECTRUM....................................... 31 1.6 SHORT-TIME FOURIER TRANSFORM - STFT.............................................................. 32 Chapter 2: System Function, Impulse Response, and Frequency Response........................ 51 2.1 THE INPUT-OUTPUT RELATIONSHIP OF A DISCRETE-TIME LTI SYSTEM..... 52 2.1.1 Convolution...................................................................................................................... 52 2.1.2 System Function and Frequency Response................................................................... 54 2.1.3 Time Response................................................................................................................. 55 2.2 COMPUTATION OF LINEAR CONVOLUTION USING DFT...................................... 55 2.3 PHYSICAL MEANING OF SYSTEM FUNCTION AND FREQUENCY RESPONSE 58 Chapter 3: Correlation and Power Spectrum................................................................ 73 3.1 CORRELATION SEQUENCE................................................................................................ 73 3.1.1 Crosscorrelation............................................................................................................... 73 3.1.2 Autocorrelation.............................................................................................................. 76 3.1.3 Matched Filter................................................................................................................ 80 3.2 POWER SPECTRAL DENSITY (PSD)................................................................................. 83 3.2.1 Periodogram PSD Estimator........................................................................................... 84 3.2.2 Correlogram PSD Estimator......................................................................................... 85 3.2.3 Physical Meaning of Periodogram............................................................................... 85 3.3 POWER SPECTRUM, FREQUENCY RESPONSE, AND COHERENCE..................... 89 3.3.1 PSD and Frequency Response........................................................................................ 90 3.3.2 PSD and Coherence....................................................................................................... 91 3.4 COMPUTATION OF CORRELATION USING DFT ...................................................... 94 Chapter 4: Digital Filter Structure................................................................................ 99 4.1 INTRODUCTION...................................................................................................................... 99 4.2 DIRECT STRUCTURE ........................................................................................................ 101 4.2.1 Cascade Form................................................................................................................ 102 4.2.2 Parallel Form............................................................................................................... 102 4.3 LATTICE STRUCTURE ..................................................................................................... 104 4.3.1 Recursive Lattice Form................................................................................................. 106 4.3.2 Nonrecursive Lattice Form........................................................................................... 112 4.4 LINEAR-PHASE FIR STRUCTURE ................................................................................ 114 4.4.1 FIR Filter with Symmetric Coefficients...................................................................... 115 4.4.2 FIR Filter with Anti-Symmetric Coefficients........................................................... 115 4.5 FREQUENCY-SAMPLING (FRS) STRUCTURE .......................................................... 118 4.5.1 Recursive FRS Form..................................................................................................... 118 4.5.2 Nonrecursive FRS Form............................................................................................. 124 4.6 FILTER STRUCTURES IN MATLAB ............................................................................. 126 4.7 SUMMARY ............................................................................................................................ 130 Chapter 5: Filter Design.............................................................................................. 137 5.1 ANALOG FILTER DESIGN................................................................................................. 137 5.2 DISCRETIZATION OF ANALOG FILTER.................................................................... 145 5.2.1 Impulse-Invariant Transformation............................................................................. 145 5.2.2 Step-Invariant Transformation - Z.O.H. (Zero-Order-Hold) Equivalent .............. 146 5.2.3 Bilinear Transformation (BLT).................................................................................. 147 5.3 DIGITAL FILTER DESIGN................................................................................................. 150 5.3.1 IIR Filter Design............................................................................................................ 151 5.3.2 FIR Filter Design......................................................................................................... 160 5.4 FDATOOL................................................................................................................................ 171 5.4.1 Importing/Exporting a Filter Design Object................................................................ 172 5.4.2 Filter Structure Conversion........................................................................................ 174 5.5 FINITE WORDLENGTH EFFECT..................................................................................... 180 5.5.1 Quantization Error......................................................................................................... 180 5.5.2 Coefficient Quantization............................................................................................. 182 5.5.3 Limit Cycle.................................................................................................................. 185 5.6 FILTER DESIGN TOOLBOX ............................................................................................ 193 Chapter 6: Spectral Estimation................................................................................... 205 6.1 CLASSICAL SPECTRAL ESTIMATION.......................................................................... 205 6.1.1 Correlogram PSD Estimator......................................................................................... 205 6.1.2 Periodogram PSD Estimator....................................................................................... 206 6.2 MODERN SPECTRAL ESTIMATION ............................................................................ 208 6.2.1 FIR Wiener Filter........................................................................................................ 208 6.2.2 Prediction Error and White Noise.............................................................................. 212 6.2.3 Levinson Algorithm.................................................................................................... 214 6.2.4 Burg Algorithm........................................................................................................... 217 6.2.5 Various Modern Spectral Estimation Methods......................................................... 219 6.3 SPTOOL .................................................................................................................................. 224 Chapter 7: DoA Estimation......................................................................................... 241 7.1 BEAMFORMING AND NULL STEERING...................................................................... 244 7.1.1 Beamforming................................................................................................................. 244 7.1.2 Null Steering................................................................................................................ 248 7.2 CONVENTIONAL METHODS FOR DOA ESTIATION................................................ 250 7.2.1 Delay-and-Sum (or Fourier) Method - Classical Beamformer.................................. 250 7.2.2 Capon's Minimum Variance Method......................................................................... 252 7.3 SUBSPACE METHODS FOR DOA ESTIATION............................................................ 253 7.3.1 MUSIC (MUltiple SIgnal Classification) Algorithm................................................. 253 7.3.2 Root-MUSIC Algorithm............................................................................................. 254 7.3.3 ESPRIT Algorithm...................................................................................................... 256 7.4 SPATIAL SMOOTHING TECHNIQUES ........................................................................ 258 Chapter 8: Kalman Filter and Wiener Filter............................................................. 267 8.1 DISCRETE-TIME KALMAN FILTER.............................................................................. 267 8.1.1 Conditional Expectation/Covariance of Jointly Gaussian Random Vectors............. 267 8.1.2 Stochastic Statistic Observer...................................................................................... 270 8.1.3 Kalman Filter for Nonstandard Cases........................................................................ 276 8.1.4 Extended Kalman Filter (EKF).................................................................................. 286 8.1.5 Unscented Kalman Filter (UKF)................................................................................ 288 8.2 DISCRETE-TIME WIENER FILTER .............................................................................. 291 Chapter 9: Adaptive Filter.......................................................................................... 301 9.1 OPTIMAL FIR FILTER........................................................................................................ 301 9.1.1 Least Squares Method................................................................................................... 302 9.1.2 Least Mean Squares Method...................................................................................... 304 9.2 ADAPTIVE FILTER ............................................................................................................ 306 9.2.1 Gradient Search Approach - LMS Method.................................................................. 306 9.2.2 Modified Versions of LMS Method........................................................................... 310 9.3 MORE EXAMPLES OF ADAPTIVE FILTER ............................................................... 316 9.4 RECURSIVE LEAST-SQUARES ESTIMATION .......................................................... 320 Chapter 10: Multi-Rate Signal Processing and Wavelet Transform............................ 329 10.1 MULTIRATE FILTER........................................................................................................ 329 10.1.1 Decimation and Interpolation..................................................................................... 330 10.1.2 Sampling Rate Conversion....................................................................................... 334 10.1.3 Decimator/Interpolator Polyphase Filters................................................................ 335 10.1.4 Multistage Filters........................................................................................................ 339 10.1.5 Nyquist (M) Filters and Half-Band Filters.............................................................. 348 10.2 TWO-CHANNEL FILTER BANK ................................................................................... 351 10.2.1 Two-Channel SBC (SubBand Coding) Filter Bank.................................................. 351 10.2.2 Standard QMF (Quadrature Mirror Filter) Bank.................................................... 352 10.2.3 PR (Perfect Reconstruction) Conditions.................................................................. 353 10.2.4 CQF (Conjugate Quadrature Filter) Bank................................................................. 354 10.3 M-CHANNEL FILTER BANK ......................................................................................... 358 10.3.1 Complex-Modulated Filter Bank (DFT Filter Bank)................................................ 359 10.3.2 Cosine-Modulated Filter Bank................................................................................. 363 10.3.3 Dyadic (Octave) Filter Bank.................................................................................... 366 10.4 WAVELET TRANSFORM ............................................................................................... 369 10.4.1 Generalized Signal Transform................................................................................... 369 10.4.2 Multi-Resolution Signal Analysis............................................................................ 371 10.4.3 Filter Bank and Wavelet........................................................................................... 374 10.4.4 Properties of Wavelets and Scaling Functions.......................................................... 378 10.4.5 Wavelet, Scaling Function, and DWT Filters......................................................... 379 10.4.6 Wavemenu Toolbox and Examples of DWT.......................................................... 382 Chapter 11: Two-Dimensional Filtering...................................................................... 401 11.1 DIGITAL IMAGE TRANSFORM..................................................................................... 401 11.1.1 2-D DFT (Discrete Fourier Transform)..................................................................... 401 11.1.2 2-D DCT (Discrete Cosine Transform)................................................................... 402 11.1.3 2-D DWT (Discrete Wavelet Transform)................................................................ 404 11.2 DIGITAL IMAGE FILTERING ....................................................................................... 411 11.2.1 2-D Filtering................................................................................................................ 411 11.2.2 2-D Correlation......................................................................................................... 412 11.2.3 2-D Wiener Filter...................................................................................................... 412 11.2.4 Smoothing Using LPF or Median Filter.................................................................... 413 11.2.5 Sharpening Using HPF or Gradient/Laplacian-Based Filter.................................. 414
| Author | : Xian-Da Zhang |
| Publisher | : Walter de Gruyter GmbH & Co KG |
| Total Pages | : 602 |
| Release | : 2022-12-05 |
| Genre | : Technology & Engineering |
| ISBN | : 3110475561 |
The book systematically introduces theories of frequently-used modern signal processing methods and technologies, and focuses discussions on stochastic signal, parameter estimation, modern spectral estimation, adaptive filter, high-order signal analysis and non-linear transformation in time-domain signal analysis. With abundant exercises, the book is an essential reference for graduate students in electrical engineering and information science.
| Author | : Alan Dobson |
| Publisher | : Routledge |
| Total Pages | : 321 |
| Release | : 2013-01-17 |
| Genre | : Political Science |
| ISBN | : 1136164154 |
This book provides an examination of contemporary Anglo-American relations. Sometimes controversially referred to as the Special Relationship, Anglo-American relations constitute arguably the most important bilateral relationship of modern times. However, in recent years, there have been frequent pronouncements that this relationship has lost its ‘specialness’. This volume brings together experts from Britain, Europe and North America in a long-overdue examination of contemporary Anglo-American relations that paints a somewhat different picture. The discussion ranges widely, from an analysis of the special relationship of culture and friendship, to an examination of both traditional (e.g. nuclear relations) and more recent (e.g. environment) policies. Contemporary developments are discussed in the context of longer-term trends and contributing authors draw upon a range of different disciplines, including political science, diplomacy studies, business studies and economics. Coupled with a substantive introduction and conclusion, the result is an insightful and engaging portrayal of the complex Anglo-American relationship. The book will be of great interest to students of US and UK foreign policy, diplomacy and international relations in general.
| Author | : G. S. Sachdeva |
| Publisher | : Springer Nature |
| Total Pages | : 277 |
| Release | : 2023-07-30 |
| Genre | : Law |
| ISBN | : 9819932653 |
This book flags and contemplates the lurking problem of space crimes that may escalate and expand with diversification of space activities, greater footfall on the celestial bodies and passage of time, for the lack of appropriate solutions. It appraises the incumbent problems to evolve solutions and make recommendations regarding space crime situations. Recognizing current situation where commercial space travel has commenced, and space tourism is not far behind, the book takes a pole position on discussing the topic with its endemic challenges. Space transportation is expected to lead to commercial mining of celestial mineral resources from the Moon and asteroids, as has been found technically feasible and commercially viable. Space-specific products have been identified for industrial mining, processing, and manufacturing, for which manpower would be necessary, howsoever minimal, despite artificial intelligence devices. Blueprints for space habitations on the Moon and Mars are being prepared. In this scenario, where outer space and celestial bodies may soon be inhabited by multi-nationality, multi-ethnic and multi-cultural groupings of tourists, workers, and residents, given cramped and not so comfortable or private living spaces, attitudinal disparities and conflicting beliefs, differences, disputes, conflicts, and crimes are sure to raise their head. Economic activity and business culture may usher in crimes of competition and spying on intellectual property. Space crimes through technologies like cyber, lasers, etc., may also permeate the space domain for ill-intentioned abuses. The criminals may be individuals or collective groups or incognito terrorists. The book also discusses crimes and near-crimes that have already occurred in space but have been ignored or condoned. Absence of sovereignty on celestial bodies coupled with crimes in space or on celestial bodies, presents problems of jurisdiction, extradition, and other legal procedures. The dilemma of multi-national judicial systems, legal codes and norms of social justice need to be resolved by a specialized treaty reconciling major bends in the existing system vis-à-vis the nature of space crimes. Limitations in handling such crimes by the existing judicial system under established doctrines of international law by International Court of Justice or International Criminal Court, is highlighted in the book. It has strong take-aways for research scholars, law fraternity, diplomatic corps, judicial administration, policy-makers and the political class, enabling them to pro-actively initiate action for suitable answers.
| Author | : Rogério le Lemos |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 384 |
| Release | : 2003-09-29 |
| Genre | : Computers |
| ISBN | : 3540202242 |
This book constitutes the refereed proceedings of the First Latin-American Symposium on Dependable Computing, LADC 2003, held in Sao Paulo, Brazil in October 2003. The 21 revised full papers presented together with abstracts of invited talks, a panel, workshops, and tutorials were carefully reviewed and selected for presentation. The papers are organized in topical sections on fault injection, security, adaptive fault tolerance, distributed algorithms, and components and fault tolerance.
| Author | : |
| Publisher | : Cambria Press |
| Total Pages | : 412 |
| Release | : |
| Genre | : |
| ISBN | : 1621968545 |
| Author | : |
| Publisher | : |
| Total Pages | : 1052 |
| Release | : 1975 |
| Genre | : Power resources |
| ISBN | : |
| Author | : United States. Air Force |
| Publisher | : |
| Total Pages | : 420 |
| Release | : 1950 |
| Genre | : |
| ISBN | : |
| Author | : Lokenath Debnath |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 450 |
| Release | : 2012-12-06 |
| Genre | : Mathematics |
| ISBN | : 1461200253 |
Provides a digest of the current developments, open questions and unsolved problems likely to determine a new frontier for future advanced study and research in the rapidly growing areas of wavelets, wavelet transforms, signal analysis, and signal and image processing. Ideal reference work for advanced students and practitioners in wavelets, and wavelet transforms, signal processing and time-frequency signal analysis. Professionals working in electrical and computer engineering, applied mathematics, computer science, biomedical engineering, physics, optics, and fluid mechanics will also find the book a valuable resource.
