| Author | : Luc T. Ikelle |
| Publisher | : Elsevier |
| Release Date | : 2010-03-29 |
| ISBN 10 | : 9780080914459 |
| Pages | : 618 pages |
Currently, the acquisition of seismic surveys is performed as a sequential operation in which shots are computed separately, one after the other. This approach is similar to that of multiple-access technology, which is widely used in cellular communications to allow several subscribers to share the same telephone line. The cost of performing various shots simultaneously is almost identical to that of one shot; thus, the savings in time and money expected from using the multishooting approach for computing seismic surveys compared to the current approach are enormous. By using this approach, the long-standing problem of simulating a three-dimensional seismic survey can be reduced to a matter of weeks and not years, as is currently the case. Investigates how to collect, stimulate, and process multishooting data Addresses the improvements in seismic characterization and resolution one can expect from multishooting data Aims to educate the oil and gas exploration and production business of the benefits of multishooting data, and to influence their day-to-day surveying techniques
| Author | : Martin Tomlinson,Cen Jung Tjhai,Marcel A. Ambroze,Mohammed Ahmed,Mubarak Jibril |
| Publisher | : Springer |
| Release Date | : 2017-02-21 |
| ISBN 10 | : 3319511033 |
| Pages | : 522 pages |
This book discusses both the theory and practical applications of self-correcting data, commonly known as error-correcting codes. The applications included demonstrate the importance of these codes in a wide range of everyday technologies, from smartphones to secure communications and transactions. Written in a readily understandable style, the book presents the authors’ twenty-five years of research organized into five parts: Part I is concerned with the theoretical performance attainable by using error correcting codes to achieve communications efficiency in digital communications systems. Part II explores the construction of error-correcting codes and explains the different families of codes and how they are designed. Techniques are described for producing the very best codes. Part III addresses the analysis of low-density parity-check (LDPC) codes, primarily to calculate their stopping sets and low-weight codeword spectrum which determines the performance of th ese codes. Part IV deals with decoders designed to realize optimum performance. Part V describes applications which include combined error correction and detection, public key cryptography using Goppa codes, correcting errors in passwords and watermarking. This book is a valuable resource for anyone interested in error-correcting codes and their applications, ranging from non-experts to professionals at the forefront of research in their field. This book is open access under a CC BY 4.0 license.
| Author | : Carl Nassar |
| Publisher | : Newnes |
| Release Date | : 2001 |
| ISBN 10 | : 9781878707550 |
| Pages | : 376 pages |
Carl R. Nassar, Ph.D., is professor of telecommunications at Colorado State University and director of the Research in Advanced Wireless Communications (RAWCom) laboratory there. He also consults for telecommunications firms and publishes extensively in the wireless literature. Balances a solid theoretical treatment of subjects with practical applications and examples. Covers both digital and analogue telecommunications systems, including digital modulation techniques. The CD accompanying the book includes MATLAB tutorials that permit readers to model various telecommunications systems and an electronic version of the book
| Author | : Sheng Luan |
| Publisher | : Springer Science & Business Media |
| Release Date | : 2011-08-03 |
| ISBN 10 | : 9783642208294 |
| Pages | : 268 pages |
Plants cannot move away from their environments. As a result, all plants that have survived to date have evolved sophisticated signaling mechanisms that allow them to perceive, respond, and adapt to constantly changing environmental conditions. Among the many cellular processes that respond to environmental changes, elevation of calcium levels is by far the most universal messenger that matches primary signals to cellular responses. Yet it remains unclear how calcium, a simple cation, translates so many different signals into distinct responses - how is the “specificity” of signal-response coupling encoded within the calcium changes? This book will attempt to answer this question by describing the cellular and molecular mechanisms underlying the coding and decoding of calcium signals in plant cells.
| Author | : Luc T. Ikelle |
| Publisher | : Elsevier |
| Release Date | : 2010-03-29 |
| ISBN 10 | : 9780080914459 |
| Pages | : 618 pages |
Currently, the acquisition of seismic surveys is performed as a sequential operation in which shots are computed separately, one after the other. This approach is similar to that of multiple-access technology, which is widely used in cellular communications to allow several subscribers to share the same telephone line. The cost of performing various shots simultaneously is almost identical to that of one shot; thus, the savings in time and money expected from using the multishooting approach for computing seismic surveys compared to the current approach are enormous. By using this approach, the long-standing problem of simulating a three-dimensional seismic survey can be reduced to a matter of weeks and not years, as is currently the case. Investigates how to collect, stimulate, and process multishooting data Addresses the improvements in seismic characterization and resolution one can expect from multishooting data Aims to educate the oil and gas exploration and production business of the benefits of multishooting data, and to influence their day-to-day surveying techniques
| Author | : San Ling,Chaoping Xing |
| Publisher | : Cambridge University Press |
| Release Date | : 2004-02-12 |
| ISBN 10 | : 9780521529235 |
| Pages | : 222 pages |
Modern introduction to theory of coding and decoding with many exercises and examples.
| Author | : Ron Roth |
| Publisher | : Cambridge University Press |
| Release Date | : 2006-02-23 |
| ISBN 10 | : 9780521845045 |
| Pages | : 566 pages |
This 2006 book introduces the theoretical foundations of error-correcting codes for senior-undergraduate to graduate students.
| Author | : Luc T. Ikelle |
| Publisher | : Elsevier |
| Release Date | : 2017-12-14 |
| ISBN 10 | : 0128111119 |
| Pages | : 718 pages |
Coding and Decoding Seismic Data: The Concept of Multishooting, Volume One, Second Edition, offers a thorough investigation of modern techniques for collecting, simulating, and processing multishooting data. Currently, the acquisition of seismic surveys is performed as a sequential operation in which shots are computed separately, one after the other. The cost of performing various shots simultaneously is almost identical to that of one shot; thus, the benefits of using the multishooting approach for computing seismic surveys are enormous. By using this approach, the longstanding problem of simulating a three-dimensional seismic survey can be reduced to a matter of weeks. Providing both theoretical and practical explanations of the multishooting approach, including case histories, this book is an essential resource for exploration geophysicists and practicing seismologists. Investigates how to collect, stimulate, and process multishooting data Addresses the improvements in seismic characterization and resolution that can be expected from multishooting data Provides information for the oil and gas exploration and production business that will influence day-to-day surveying techniques Covers robust decoding methods of undetermined mixtures, nonlinear decoding, the use of constraints in decoding processes, and nonlinear imaging of undecoded data Includes access to a companion site with answers to questions posed in the book
| Author | : N.A |
| Publisher | : Academic Press |
| Release Date | : 2014-07-29 |
| ISBN 10 | : 012397223X |
| Pages | : 690 pages |
This book gives a review of the principles, methods and techniques of important and emerging research topics and technologies in Channel Coding, including theory, algorithms, and applications. Edited by leading people in the field who, through their reputation, have been able to commission experts to write on a particular topic. With this reference source you will: Quickly grasp a new area of research Understand the underlying principles of a topic and its applications Ascertain how a topic relates to other areas and learn of the research issues yet to be resolved Quick tutorial reviews of important and emerging topics of research in Channel Coding Presents core principles in Channel Coding theory and shows their applications Reference content on core principles, technologies, algorithms and applications Comprehensive references to journal articles and other literature on which to build further, more specific and detailed knowledge
| Author | : N.A |
| Publisher | : N.A |
| Release Date | : 1995 |
| ISBN 10 | : |
| Pages | : 329 pages |
| Author | : John L. Fan |
| Publisher | : Springer Science & Business Media |
| Release Date | : 2012-12-06 |
| ISBN 10 | : 1461515254 |
| Pages | : 255 pages |
Constrained Coding and Soft Iterative Decoding is the first work to combine the issues of constrained coding and soft iterative decoding (e.g., turbo and LDPC codes) from a unified point of view. Since constrained coding is widely used in magnetic and optical storage, it is necessary to use some special techniques (modified concatenation scheme or bit insertion) in order to apply soft iterative decoding. Recent breakthroughs in the design and decoding of error-control codes (ECCs) show significant potential for improving the performance of many communications systems. ECCs such as turbo codes and low-density parity check (LDPC) codes can be represented by graphs and decoded by passing probabilistic (a.k.a. `soft') messages along the edges of the graph. This message-passing algorithm yields powerful decoders whose performance can approach the theoretical limits on capacity. This exposition uses `normal graphs,' introduced by Forney, which extend in a natural manner to block diagram representations of the system and provide a simple unified framework for the decoding of ECCs, constrained codes, and channels with memory. Soft iterative decoding is illustrated by the application of turbo codes and LDPC codes to magnetic recording channels. For magnetic and optical storage, an issue arises in the use of constrained coding, which places restrictions on the sequences that can be transmitted through the channel; the use of constrained coding in combination with soft ECC decoders is addressed by the modified concatenation scheme also known as `reverse concatenation.' Moreover, a soft constraint decoder yields additional coding gain from the redundancy in the constraint, which may be of practical interest in the case of optical storage. In addition, this monograph presents several other research results (including the design of sliding-block lossless compression codes, and the decoding of array codes as LDPC codes). Constrained Coding and Soft Iterative Decoding will prove useful to students, researchers and professional engineers who are interested in understanding this new soft iterative decoding paradigm and applying it in communications and storage systems.
| Author | : Great Britain. Meteorological Office |
| Publisher | : N.A |
| Release Date | : 1963 |
| ISBN 10 | : |
| Pages | : 199 pages |