Linear Estimation and Detection in Krylov Subspaces / Edition 1

Linear Estimation and Detection in Krylov Subspaces / Edition 1

by Guido K. E. Dietl
ISBN-10:
3540684786
ISBN-13:
9783540684787
Pub. Date:
12/20/2007
Publisher:
Springer Berlin Heidelberg
ISBN-10:
3540684786
ISBN-13:
9783540684787
Pub. Date:
12/20/2007
Publisher:
Springer Berlin Heidelberg
Linear Estimation and Detection in Krylov Subspaces / Edition 1

Linear Estimation and Detection in Krylov Subspaces / Edition 1

by Guido K. E. Dietl

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Overview

One major area in the theory of statistical signal processing is reduced-rank - timation where optimal linear estimators are approximated in low-dimensional subspaces, e.g., in order to reduce the noise in overmodeled problems, - hance the performance in case of estimated statistics, and/or save compu- tional complexity in the design of the estimator which requires the solution of linear equation systems. This book provides a comprehensive overview over reduced-rank—lters where the main emphasis is put on matrix-valued filters whose design requires the solution of linear systems with multiple right-hand sides. In particular, the multistage matrix Wiener filter, i.e., a reduced-rank Wiener filter based on the multistage decomposition, is derived in its most general form. In numerical mathematics, iterative block Krylov methods are very po- lar techniques for solving systems of linear equations with multiple right-hand sides, especially if the systems are large and sparse. Besides presenting a - tailed overview of the most important block Krylov methods in Chapter 3, which may also serve as an introduction to the topic, their connection to the multistage matrix Wiener filter is revealed in this book. Especially, the reader will learn the restrictions of the multistage matrix Wiener filter which are necessary in order to end up in a block Krylov method. This relationship is of great theoretical importance because it connects two different fields of mathematics, viz., statistical signal processing and numerical linear algebra.

Product Details

ISBN-13: 9783540684787
Publisher: Springer Berlin Heidelberg
Publication date: 12/20/2007
Series: Foundations in Signal Processing, Communications and Networking , #1
Edition description: 2007
Pages: 232
Product dimensions: 6.10(w) x 9.40(h) x 0.80(d)

Table of Contents

Theory: Linear Estimation in Krylov Subspaces.- Efficient Matrix Wiener Filter Implementations.- Block Krylov Methods.- Reduced-Rank Matrix Wiener Filters in Krylov Subspaces.- Application: Iterative Multiuser Detection.- System Model for Iterative Multiuser Detection.- System Performance.- Conclusions.
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