Biomedical Signal Processing and Signal Modeling
A biomedical engineering perspective on the theory, methods, and applications of signal processing This book provides a unique framework for understanding signal processing of biomedical signals and what it tells us about signal sources and their behavior in response to perturbation. Using a modeling-based approach, the author shows how to perform signal processing by developing and manipulating a model of the signal source, providing a logical, coherent basis for recognizing signal types and for tackling the special challenges posed by biomedical signals-including the effects of noise on the signal, changes in basic properties, or the fact that these signals contain large stochastic components and may even be fractal or chaotic. Each chapter begins with a detailed biomedical example, illustrating the methods under discussion and highlighting the interconnection between the theoretical concepts and applications. The author has enlisted experts from numerous subspecialties in biomedical engineering to help develop these examples and has made most examples available as Matlab or Simulink files via anonymous ftp. Without the need for a background in electrical engineering, readers will become acquainted with proven techniques for analyzing biomedical signals and learn how to choose the appropriate method for a given application.
Table of Contents
The Nature of Biomedical Signals.
Memory and Correlation.
The Impulse Response.
Modeling Continuous-Time Signals as Sums of Sine Waves.
Responses of Linear Continuous-Time Filters to Arbitrary Inputs.
Modeling Signals as Sums of Discrete-Time Sine Waves.
Noise Removal and Signal Compensation.
Modeling Stochastic Signals as Filtered White Noise.
Scaling and Long-Term Memory.
Nonlinear Models of Signals.
Assessing Stationarity and Reproducibility.
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