Sigma Delta Modulators: Nonlinear Decoding Algorithms and Stability Analysis: 213 - Rilegato

Hein, Soren; Zakhor, Avideh

 
9780792393092: Sigma Delta Modulators: Nonlinear Decoding Algorithms and Stability Analysis: 213
Rilegato
ISBN 10: 0792393090 ISBN 13: 9780792393092
Casa editrice: Kluwer Academic Pub, 1993

Sinossi

Analog-to-digital (A/D) converters are key components in digital signal processing (DSP) systems and are therefore receiving much attention as DSP becomes increasingly prevalent in telephony, audio, video, consumer products, etc. The varying demands on conversion rate, resolution and other characteristics have inspired a large number of competing A/D conversion techniques. Sigma Delta Modulators: Nonlinear Decoding Algorithms and Stability Analysis is concerned with the particular class of A/D techniques called oversampled noise-shaping (ONS) that has recently come into prominence for a number of applications. The popularity of ONS converters is due to their ease of implementation and robustness to circuit imperfectors. An ONS converter consists of an encoder that generates a high-rate, low-resolution digital signal, and a decoder that produces a low-rate, high-resolution digital approximation to the analog encoder input. The conventional decoding approach is based on linear filtering. Sigma Delta Modulators presents the optimal design of an ONS decoder for a given encoder. It is shown that nonlinear decoding can achieve gains in signaling ratio and the encoder architecture. The book then addresses the instability problem that plagues higher-order ONS encoders. A new stability concept is introduced that is well-suited to ONS encoders, and it is applied to the double-loop encoder as well as to the class of interpolative encoders. It is shown that there exists a trade-off between stability and SNR performance. Based on the results, explicit design examples are presented. Sigma Delta Modulators: Nonlinear Decoding Algorithms and Stability Analysis is a valuable reference source for researchers and engineers in industry and academia working on or interested in design and analysis of A/D converters, particularly to those working in quantization theory and signal reconstruction, and can serve as a text for advanced courses on the subjects treated.

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Contenuti

1. Introduction. 2. Properties of ONS Converters with Constant Inputs. 3. Optimal Decoding for ONS Encoders with Constant Inputs. 4. An SVD-Based Methods for Band-Limiting Finite Extent Signals. 5. Optimal Decoding for ONS Decoders with Band-Limited Inputs. 6. Halftone to Continuous-Tone Conversion on Error-Diffusion Coded Images. 7. Stability of ONS Encoders. 8. Conclusions. Appendices.

Product Description

Book by Hein Sren Zakhor Avideh

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Editore
Kluwer Academic Pub
Data di pubblicazione
1993
Lingua
Inglese
ISBN 10 
0792393090
ISBN 13 
9780792393092
Rilegatura
Copertina rigida
Numero di pagine
252
Contatto del produttore
Elevation
https://www.also.com/ec/cms5/en_6000/6000/index.jsp

Friedrich-Karl-Str. 9
Hamburg
22391
Germania

Altre edizioni note dello stesso titolo

9781461363736: Sigma Delta Modulators: Nonlinear Decoding Algorithms and Stability Analysis: 213

Edizione in evidenza

ISBN 10:  146136373X ISBN 13:  9781461363736
Casa editrice: Springer, 2012
Brossura