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Self-similarity in Walsh functions a...

Hazra, Lakshminarayan.

Self-similarity in Walsh functions and in the farfield diffraction patterns of radial Walsh filters

Record Type:	Electronic resources : Monograph/item
Title/Author:	Self-similarity in Walsh functions and in the farfield diffraction patterns of radial Walsh filtersby Lakshminarayan Hazra, Pubali Mukherjee.
Author:	Hazra, Lakshminarayan.
other author:	Mukherjee, Pubali.
Published:	Singapore :Springer Singapore :2018.
Description:	ix, 82 p. :ill. (some col.), digital ;24 cm.
Contained By:	Springer eBooks
Subject:	Walsh functions.
Online resource:	http://dx.doi.org/10.1007/978-981-10-2809-0
ISBN:	9789811028090$q(electronic bk.)

Self-similarity in Walsh functions and in the farfield diffraction patterns of radial Walsh filters
Hazra, Lakshminarayan.

Self-similarity in Walsh functions and in the farfield diffraction patterns of radial Walsh filters[electronic resource] /by Lakshminarayan Hazra, Pubali Mukherjee. - Singapore :Springer Singapore :2018. - ix, 82 p. :ill. (some col.), digital ;24 cm. - SpringerBriefs in applied sciences and technology,2191-530X. - SpringerBriefs in applied sciences and technology..

Walsh Functions -- Self-similarity in Walsh Functions -- Computation of Farfield Diffraction Characteristics of radial Walsh Filters on the pupil of axisymmetric imaging systems -- Self-similarity in Transverse Intensity Distributions on the Farfield plane of self-similar radial Walsh Filters -- Self-similarity in Axial Intensity Distributions around the Farfield plane of self-similar radial Walsh Filters -- Self-similarity in 3D Light Distributions near the focus of self-similar radial Walsh Filters. Conclusion.

The book explains the classification of a set of Walsh functions into distinct self-similar groups and subgroups, where the members of each subgroup possess distinct self-similar structures. The observations on self-similarity presented provide valuable clues to tackling the inverse problem of synthesis of phase filters. Self-similarity is observed in the far-field diffraction patterns of the corresponding self-similar filters. Walsh functions form a closed set of orthogonal functions over a prespecified interval, each function taking merely one constant value (either +1 or -1) in each of a finite number of subintervals into which the entire interval is divided. The order of a Walsh function is equal to the number of zero crossings within the interval. Walsh functions are extensively used in communication theory and microwave engineering, as well as in the field of digital signal processing. Walsh filters, derived from the Walsh functions, have opened up new vistas. They take on values, either 0 or π phase, corresponding to +1 or -1 of the Walsh function value.

ISBN: 9789811028090$q(electronic bk.)

Standard No.: 10.1007/978-981-10-2809-0doiSubjects--Topical Terms:

732766
Walsh functions.

LC Class. No.: QA404.5 / .H39 2018

Dewey Class. No.: 515.55

Self-similarity in Walsh functions and in the farfield diffraction patterns of radial Walsh filters
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520 $a The book explains the classification of a set of Walsh functions into distinct self-similar groups and subgroups, where the members of each subgroup possess distinct self-similar structures. The observations on self-similarity presented provide valuable clues to tackling the inverse problem of synthesis of phase filters. Self-similarity is observed in the far-field diffraction patterns of the corresponding self-similar filters. Walsh functions form a closed set of orthogonal functions over a prespecified interval, each function taking merely one constant value (either +1 or -1) in each of a finite number of subintervals into which the entire interval is divided. The order of a Walsh function is equal to the number of zero crossings within the interval. Walsh functions are extensively used in communication theory and microwave engineering, as well as in the field of digital signal processing. Walsh filters, derived from the Walsh functions, have opened up new vistas. They take on values, either 0 or π phase, corresponding to +1 or -1 of the Walsh function value.
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