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In the digital world, the need to protect communications increases every day. While traditional digital encryption methods are useful, there are many other options for hiding your information. Information Hiding in Speech Signals for Secure Communication provides a number of methods to hide secret speech information using a variety of digital speech coding standards. Professor Zhijun Wu has conducted years of research in the field of speech information hiding, and brings his state-of-the-art techniques to readers of this book, including a mathematical model for information hiding, the core co

Digital communications. --- Signals and signaling. --- Speech. --- Telecommunication systems. --- Communication systems --- Communications systems --- Systems, Communication --- Electronic systems --- Telecommunication --- Talking --- Language and languages --- Oral communication --- Phonetics --- Voice --- Coastal signals --- Military signaling --- Naval signaling --- Communication --- Communications, Military --- Marine service --- Naval art and science --- Navigation --- Signs and symbols --- Flags --- Communications, Digital --- Digital transmission --- Pulse communication --- Digital electronics --- Pulse techniques (Electronics) --- Digital media --- Signal processing --- Digital techniques

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Complex adaptive systems (cas), including ecosystems, governments, biological cells, and markets, are characterized by intricate hierarchical arrangements of boundaries and signals. In ecosystems, for example, niches act as semi-permeable boundaries, and smells and visual patterns serve as signals; governments have departmental hierarchies with memoranda acting as signals; and so it is with other cas. Despite a wealth of data and descriptions concerning different cas, there remain many unanswered questions about "steering" these systems. In Signals and Boundaries, John Holland argues that understanding the origin of the intricate signal/border hierarchies of these systems is the key to answering such questions. He develops an overarching framework for comparing and steering cas through the mechanisms that generate their signal/boundary hierarchies. Holland lays out a path for developing the framework that emphasizes agents, niches, theory, and mathematical models. He discusses, among other topics, theory construction; signal-processing agents; networks as representations of signal/boundary interaction; adaptation; recombination and reproduction; the use of tagged urn models (adapted from elementary probability theory) to represent boundary hierarchies; finitely generated systems as a way to tie the models examined into a single framework; the framework itself, illustrated by a simple finitely generated version of the development of a multi-celled organism; and Markov processes.

Animal physiology. Animal biophysics --- Artificial intelligence. Robotics. Simulation. Graphics --- Adaptive control systems. --- Adaptation (Biology) --- Signals and signaling --- Coastal signals --- Military signaling --- Naval signaling --- Communication --- Communications, Military --- Marine service --- Naval art and science --- Navigation --- Signs and symbols --- Flags --- Environment --- Biology --- Self-organizing systems --- Variation (Biology) --- Biological fitness --- Genetics --- Self-adaptive control systems --- Artificial intelligence --- Feedback control systems --- Mathematical models. --- COGNITIVE SCIENCES/General --- COMPUTER SCIENCE/General --- Adaptive control systems --- Mathematical models --- Environmental adaptation --- Adaptation, Environmental

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Satellite navigation receivers are used to receive, process, and decode space-based navigation signals, such as those provided by the GPS constellation of satellites. There is an increasing need for a unified open platform that will enable enhanced receiver development and design, as well as cost-effective testing procedures for various applications. This book provide hands-on exploration of new technologies in this rapidly growing field. One of the unique features of the work is the interactive approach used, giving readers the ability to construct their own Global Navigation Satellite Systems (GNSS) receivers. To construct such a reconfigurable receiver with a wide range of applications, the authors discuss receiver architecture based on software-defined radio (SDR) techniques. The presentation unfolds in a systematic, user-friendly style and goes from the basics to cutting-edge research. Additional features and topics include: * Presentation of basic signal structures used in GPS and Galileo, the European satellite navigation system * Design and implementation of a GPS signal generator * Presentation and analysis of different methods of signal acquisition—serial search; parallel-frequency space search; and parallel-code phase search—as well as code/carrier tracking and navigation data decoding * A complete GPS software receiver implemented using MATLAB code as well as GPS and GIOVE-A signal records—allowing readers to change various parameters and immediately see their effects * MATLAB-based exercises * A hands-on method of testing the material covered in the book: supplementary front-end hardware equipment—which may be purchased at http://ccar.colorado.edu/gnss—enables readers working on a Windows or LINUX system to generate real-world data by converting analog signals to digital signals * Supplementary course material for instructors available at http://gps.aau.dk/softgps * Bibliography of recent results and comprehensive index The book is aimed at applied mathematicians, electrical engineers, geodesists, and graduate students. It may be used as a textbook in various GPS technology and signal processing courses, or as a self-study reference for anyone working with satellite navigation receivers.

Signals and signaling. --- Signal theory (Telecommunication) --- Global Positioning System. --- Signal processing. --- Artificial satellites in navigation. --- Navigation --- Processing, Signal --- Information measurement --- Global Navigation Satellite System --- GNSS (Navigational system) --- GPS (Navigational system) --- Navigation Satellite Timing and Ranging Global Positioning System --- NAVSTAR GPS --- Artificial satellites in navigation --- Mobile geographic information systems --- Electric signal theory --- Electric waves --- Signal detection --- Telecommunication --- Coastal signals --- Military signaling --- Naval signaling --- Communication --- Communications, Military --- Marine service --- Naval art and science --- Signs and symbols --- Flags --- Geography. --- Computer science. --- Engineering mathematics. --- Fourier analysis. --- Signal, Image and Speech Processing. --- Earth Sciences, general. --- Computational Science and Engineering. --- Mathematical and Computational Engineering. --- Fourier Analysis. --- Engineering --- Engineering analysis --- Mathematical analysis --- Analysis, Fourier --- Informatics --- Science --- Cosmography --- Earth sciences --- World history --- Mathematics --- Image processing. --- Speech processing systems. --- Earth sciences. --- Computer mathematics. --- Applied mathematics. --- Computer mathematics --- Electronic data processing --- Geosciences --- Environmental sciences --- Physical sciences --- Computational linguistics --- Electronic systems --- Information theory --- Modulation theory --- Oral communication --- Speech --- Singing voice synthesizers --- Pictorial data processing --- Picture processing --- Processing, Image --- Imaging systems --- Optical data processing

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This book presents the cutting-edge technologies of knee joint vibroarthrographic signal analysis for the screening and detection of knee joint injuries. It describes a number of effective computer-aided methods for analysis of the nonlinear and nonstationary biomedical signals generated by complex physiological mechanics. This book also introduces several popular machine learning and pattern recognition algorithms for biomedical signal classifications. The book is well-suited for all researchers looking to better understand knee joint biomechanics and the advanced technology for vibration arthrometry. Dr. Yunfeng Wu is an Associate Professor at the School of Information Science and Technology, Xiamen University, Xiamen, Fujian, China.

Engineering. --- Biomedical Engineering. --- Rehabilitation Medicine. --- Signal, Image and Speech Processing. --- Pattern Recognition. --- Rehabilitation. --- Optical pattern recognition. --- Biomedical engineering. --- Ingénierie --- Réadaptation --- Reconnaissance optique des formes (Informatique) --- Génie biomédical --- Health & Biological Sciences --- Biomedical Engineering --- Signal processing. --- Electronic noise. --- Vibration. --- Signals and signaling. --- Knee --- Examination. --- Genu --- Genus (Anatomy) --- Knee joint --- Coastal signals --- Military signaling --- Naval signaling --- Noise, Electronic --- Processing, Signal --- Rehabilitation medicine. --- Pattern recognition. --- Communication --- Communications, Military --- Marine service --- Naval art and science --- Navigation --- Signs and symbols --- Flags --- Joints --- Leg --- Stifle joint --- Cycles --- Mechanics --- Sound --- Signal theory (Telecommunication) --- Electric noise --- Information measurement --- Biomedical Engineering and Bioengineering. --- Optical data processing --- Pattern perception --- Perceptrons --- Visual discrimination --- Clinical engineering --- Medical engineering --- Bioengineering --- Biophysics --- Engineering --- Medicine --- Image processing. --- Speech processing systems. --- Design perception --- Pattern recognition --- Form perception --- Perception --- Figure-ground perception --- Computational linguistics --- Electronic systems --- Information theory --- Modulation theory --- Oral communication --- Speech --- Telecommunication --- Singing voice synthesizers --- Pictorial data processing --- Picture processing --- Processing, Image --- Imaging systems --- Medicine, Rehabilitation --- Rehabilitation medicine --- Rehabilitation --- Medicine, Physical