Quantization Noise
A book on roundoff error in digital computation, signal processing, control, and communications.
Full reference: Bernard Widrow and István Kollár, "Quantization Noise: Roundoff Error in Digital Computation, Signal Processing, Control, and Communications," Cambridge University Press, Cambridge, UK, p.
ISBN , ISBN:
BibTeX reference
The book summarizes the statistical theory of quantization. The properties and application conditions of the noise model of quantization are discussed in details. Limits of applicatibility are formulated. The theory is developed for uniform quantizers, then it is extended to floating-point number representation. Applications to roundoff in FIR/IIR filters, in feedback control systems, and in numerical calculations are discussed. The use of analog/digital dither is also investigated.
The book has been published by the beginning of July, , by Cambridge University Press.
Nominal price: 86 USD / 45 GPB. Here is the web page of the book at the publisher, and a flyer.
SOLUTION MANUAL FOR THE BOOK QUANTIZATION NOISE: A solutions manual is also available for instructors, cont
FECHA:30 de Junio del
TEMA:RED ADALINE
INTRODUCCIÓN
Las Redes Neuronales son dispositivos, programados de manera tal que tratan de representar el cerebro humano, simulando de cierto su proceso de aprendizaje. Dentro de los tipos de neuronas artificiales tenemos a la Red Adaline.
La Red Adaline tiene una diferencia significativa con relación al Perceptrón ya que esta emplea una regla de aprendizaje más fuerte que la del perceptrón que es la llamada regla LMS (Least Mean Square) mínimo cuadrado medio.
El perceptrón se basa en diferenciar de una clase de otra, separa por decirlo así manzana de peras ,personas altas de bajas por decir un ejemplo , en cambio una red Adaline tiene una salida lineal y toma valores continuos que pueden ir de valores negativos hasta positivos.
MARCO TEÓRICO
RED ADALINE
ANTECEDENTES
La Red Adaline fue desarrollada en el por Bernard Widrow y su estudiante Marcian Hoff de la universidad de Stanford.
ADALINE proviene de Adaptive Lineal Element (Elemento Lineal Adaptativo), pero antes de que se le diera este nombre esta red sufrió un cambio ya que primeramente se llamaba Adaptive Lineal Neuron (Neurona Linear Adapti
Bernard Widrow
- Birthdate
- /12/24
- Birthplace
- Norwich, CT, USA
- Awards
- IEEE Alexander Graham Bell Medal
Biography
Bernard (Bernie) Widrow was born on 24 December in Norwich, Connecticut.
As a graduate student, Bernie was a research assistant in the MIT Digital Computer Lab which ultimately became a founding division of Lincoln Lab. There he worked on some of the earliest magnetic core memory systems and, together with Professor Bill Linvill, on the theory of sampled data systems. His doctoral thesis was an analysis of roundoff noise in digital systems.
After finishing doctoral studies, Bernie became an Assistant Professor in the MIT Electrical Engineering Department. At that time he was intrigued by the ideas of Marvin Minsky and John McCarthy, the principal architects of artificial intelligence. The idea of building a machine that would have brain-like capabilities was irresistible. He spent six months thinking about what thinking is about. He came to the conclusion that artificial intelligence was not a good field for a new Assistant Professor in the Engineering Department.
Getting results would take too many years. Such work would be better for someone esta
Bernard Widrow
| Research Prof. Widrow's research focuses on adaptive signal processing, adaptive control systems, adaptive neural networks, human memory, and human-like memory for computers. Applications include signal processing, prediction, noise cancelling, adaptive arrays, control systems, and pattern recognition. |
Courses Taught EEAAdaptive Signal Processing EEBAdaptive Neural Networks EEQuantization Noise |
Short CV Patents Publications |
Hearing Aid Device
A directional acoustic receiving system is constructed in the form of a necklace, including an array of two or more microphones mounted on a housing supported on the chest of the user by a conducting loop encircling the user's neck. This method enables the design of highly-drective-hearing instruments which are comfortable, inconspicuous, and convenient to use. The array provides the user with a dramatic improvement in speech perception over existing hearing aid designs, particularly in the presence of background noise, reverberation, and feedback.
B. Widrow, ``A Microphone Array for Hearing Aids,''IEEE Circuits and Systems Magazine, 1(2),
Quantization Noise
Prof. Widrow's
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