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Author : Achim Fahrner
Publisher :
ISBN 13 : 9783183758104
Total Pages : 138 pages
Book Rating : 4.7/5 (581 download)
Download or read book On Signal Processing and Coding for Digital Magnetic Storage Systems written by Achim Fahrner and published by . This book was released on 2005 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bane Vasic
Publisher : CRC Press
ISBN 13 : 0203490312
Total Pages : 742 pages
Book Rating : 4.2/5 (34 download)
Download or read book Coding and Signal Processing for Magnetic Recording Systems written by Bane Vasic and published by CRC Press. This book was released on 2004-11-09 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Implementing new architectures and designs for the magnetic recording read channel have been pushed to the limits of modern integrated circuit manufacturing technology. This book reviews advanced coding and signal processing techniques and architectures for magnetic recording systems. Beginning with the basic principles, it examines read/write operations, data organization, head positioning, sensing, timing recovery, data detection, and error correction. It also provides an in-depth treatment of all recording channel subsystems inside a read channel and hard disk drive controller. The final section reviews new trends in coding, particularly emerging codes for recording channels.
Author : Stephan Stiglmayr
Publisher :
ISBN 13 :
Total Pages : 85 pages
Book Rating : 4.:/5 (314 download)
Download or read book Signal Processing and Detection for Digital Magnetic Storage Systems written by Stephan Stiglmayr and published by . This book was released on 2004 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zining Wu
Publisher : Springer Science & Business Media
ISBN 13 : 146154565X
Total Pages : 165 pages
Book Rating : 4.4/5 (615 download)
Download or read book Coding and Iterative Detection for Magnetic Recording Channels written by Zining Wu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of the internet age has produced enormous demand for in creased storage capacity and for the consequent increases in the amount of information that can be stored in a small space. While physical and media improvements have driven the majority of improvement in modern storage systems, signal processing and coding methods have increasing ly been used to augment those improvements. Run-length-limited codes and partial-response detection methods have come to be the norm in an industry that once rejected any sophistication in the read or write pro cessing circuits. VLSI advances now enable increasingly sophisticated signal processing methods for negligible cost and complexity, a trend sure to continue even as disk access speeds progress to billions of bits per second and terabits per square inch in the new millennium of the in formation age. This new book representing the Ph. D. dissertation work of Stanford's recent graduate Dr. Zining Wu is an up-to-date and fo cused review of the area that should be of value to those just starting in this area and as well those with considerable expertise. The use of saturation recording, i. e. the mandated restriction of two-level inputs, creates interesting twists on the use of communica tion/transmission methods in recording.
Author : Sharon Aviran
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (734 download)
Download or read book Constrained Coding and Signal Processing for Data Storage Systems written by Sharon Aviran and published by . This book was released on 2006 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Constrained codes for digital storage systems are studied. A method for improving signal detection in digital magnetic recording systems is also investigated. The bit stuffing algorithm is a technique for coding constrained sequences by the insertion of bits into an arbitrary data sequence. This approach was previously introduced and applied to the family of $(d, k)$ constraints. Results show that the maximum average rate of the bit stuffing code achieves the Shannon capacity when $k=d+1$ or $k=\infty$, and fails to achieve capacity for all other $(d, k)$ pairs. A modification to the bit stuffing algorithm is proposed that is based on the addition of controlled bit flipping. It is shown that the modified scheme achieves improved average rates over bit stuffing for most $(d, k)$ constraints. All $(d, k)$ constraints for which this scheme produces codes with an average rate equal to the Shannon capacity are determined. A general framework for the construction of $(d, k)$-constrained codes from variable-length source codes is presented. Optimal variable-length codes under the general framework are investigated. The construction of constrained codes from variable-length source codes for encoding unconstrained sequences of independent but biased (as opposed to equiprobable) bits is also considered. It is shown that one can use the Tunstall source coding algorithm to generate optimal codes for a partial class of $(d, k)$ constraints. Bit-stuffing schemes which encode arbitrary inputs into two-dimensional (2-D) constrained arrays are presented. The class of 2-D $(d, \infty)$ constraints as well as the `no isolated bits' constraint are considered. The proposed schemes are based on interleaving biased bits with multiple biases into a 2-D array, while stuffing extra bits when necessary. The performance of the suggested schemes is studied through simulations. A method for joint detection and decoding of coded transmission over magnetic recording channels is considered. The standard framework of turbo equalization is modified to account for the colored noise present in high-density magnetic recording systems. The modified scheme incorporates a noise prediction algorithm, which iteratively and selectively whitens the noise, while utilizing the information produced by the turbo equalization scheme. Simulation results demonstrate the performance improvements obtained by the proposed scheme.
Author : Morteza Mehrnoush
Publisher :
ISBN 13 :
Total Pages : 167 pages
Book Rating : 4.:/5 (969 download)
Download or read book Signal Processing and Coding for Two-dimensional Magnetic Recording written by Morteza Mehrnoush and published by . This book was released on 2016 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Initially, several turbo equalization systems for two-dimensional intersymbol interference (2D-ISI) channels are proposed. The systems' receivers consist of joint 2D-ISI equalizers with an irregular repeat accumulate (IRA) LDPC code.
Author : Volker Braun
Publisher :
ISBN 13 : 9783183504107
Total Pages : 82 pages
Book Rating : 4.5/5 (41 download)
Download or read book On Modulation, Coding and Signal Processing for Optical and Magnetic Recording Systems written by Volker Braun and published by . This book was released on 1997 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vijayakumar Bhagavatula
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (547 download)
Download or read book Coding and Signal Processing for Digital Data Storage written by Vijayakumar Bhagavatula and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 344 pages
Book Rating : 4.:/5 (659 download)
Download or read book Detection and Decoding for Magnetic Storage Systems written by and published by . This book was released on 2009 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The hard-disk storage industry is at a critical time as the current technologies are incapable of achieving densities beyond 500 Gb/in2, which will be reached in a few years. Many radically new storage architectures have been proposed, which along with advanced signal processing algorithms are expected to achieve much higher densities. In this dissertation, various signal processing algorithms are developed to improve the performance of current and next-generation magnetic storage systems. Low-density parity-check (LDPC) error correction codes are known to provide excellent performance in magnetic storage systems and are likely to replace or supplement currently used algebraic codes. Two methods are described to improve their performance in such systems. In the first method, the detector is modified to incorporate auxiliary LDPC parity checks. Using graph theoretical algorithms, a method to incorporate maximum number of such checks for a given complexity is provided. In the second method, a joint detection and decoding algorithm is developed that, unlike all other schemes, operates on the non-binary channel output symbols rather than input bits. Though sub-optimal, it is shown to provide the best known decoding performance for channels with memory more than 1, which are practically the most important. This dissertation also proposes a ternary magnetic recording system from a signal processing perspective. The advantage of this novel scheme is that it is capable of making magnetic transitions with two different but predetermined gradients. By developing optimal signal processing components like receivers, equalizers and detectors for this channel, the equivalence of this system to a two-track/two-head system is determined and its performance is analyzed. Consequently, it is shown that it is preferable to store information using this system, than to store using a binary system with inter-track interference. Finally, this dissertation provides a number of insights into the unique characteristics of heat-assisted magnetic recording (HAMR) and two-dimensional magnetic recording (TDMR) channels. For HAMR channels, the effects of laser spot on transition characteristics and non-linear transition shift are investigated. For TDMR channels, a suitable channel model is developed to investigate the two-dimensional nature of the noise.
Author : G.C. Hadjipanayis
Publisher : Springer Science & Business Media
ISBN 13 : 9401006245
Total Pages : 610 pages
Book Rating : 4.4/5 (1 download)
Download or read book Magnetic Storage Systems Beyond 2000 written by G.C. Hadjipanayis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: An up-to-date and comprehensive review of magnetic storage systems, including particulate and rigid media, magnetic heads, tribology, signal processing spintronics, and other, future systems. A thorough theoretical discussion supplements the experimental and technical aspects. Each section commences with a tutorial paper, which is followed by technical discussions of current research in the area. Written at a level suitable for advanced graduate students.
Author :
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.3/5 (91 download)
Download or read book U.S. Government Research Reports written by and published by . This book was released on 1962 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vojin G. Oklobdzija
Publisher : CRC Press
ISBN 13 : 0849386209
Total Pages : 992 pages
Book Rating : 4.8/5 (493 download)
Download or read book Digital Systems and Applications written by Vojin G. Oklobdzija and published by CRC Press. This book was released on 2017-12-19 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt: New design architectures in computer systems have surpassed industry expectations. Limits, which were once thought of as fundamental, have now been broken. Digital Systems and Applications details these innovations in systems design as well as cutting-edge applications that are emerging to take advantage of the fields increasingly sophisticated capabilities. This book features new chapters on parallelizing iterative heuristics, stream and wireless processors, and lightweight embedded systems. This fundamental text— Provides a clear focus on computer systems, architecture, and applications Takes a top-level view of system organization before moving on to architectural and organizational concepts such as superscalar and vector processor, VLIW architecture, as well as new trends in multithreading and multiprocessing. includes an entire section dedicated to embedded systems and their applications Discusses topics such as digital signal processing applications, circuit implementation aspects, parallel I/O algorithms, and operating systems Concludes with a look at new and future directions in computing Features articles that describe diverse aspects of computer usage and potentials for use Details implementation and performance-enhancing techniques such as branch prediction, register renaming, and virtual memory Includes a section on new directions in computing and their penetration into many new fields and aspects of our daily lives
Author : Paul Augustine Voois
Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.:/5 (387 download)
Download or read book Two-dimensional Signal Processing for Magnetic Storage Systems written by Paul Augustine Voois and published by . This book was released on 1993 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James Fitzpatrick
Publisher :
ISBN 13 :
Total Pages : 460 pages
Book Rating : 4.:/5 (318 download)
Download or read book Analysis of and Coding for Partial Response Magnetic Recording Systems written by James Fitzpatrick and published by . This book was released on 1993 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Graham Wade
Publisher : Cambridge University Press
ISBN 13 : 9780521412308
Total Pages : 456 pages
Book Rating : 4.4/5 (123 download)
Download or read book Signal Coding and Processing written by Graham Wade and published by Cambridge University Press. This book was released on 1994-09-08 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Signal coding and signal processing are complex and critical elements of communications systems in broadcasting, satellite, and magnetic recording fields among others. Because both signal coding and processing are often found within a single electronic system (especially large communications systems), this book uniquely combines an introduction to both of these areas and provides an uncluttered theoretical treatment of optical coding and processing algorithms, together with design information for practical systems. The author examines Pulse Code Modulation fundamentals, surveys modern data compression techniques, introduces block and convolutional error control codes, and discusses modern transmission coding techniques. Complete with problems and solutions, and containing over 230 diagrams, this textbook will be invaluable to third- and fourth-year undergraduates in electronic, electrical, or communication engineering. It will also act as a useful reference for anyone working in this technologically important field.
Author : Giovanni Campardo
Publisher : Springer Science & Business Media
ISBN 13 : 3642147526
Total Pages : 498 pages
Book Rating : 4.6/5 (421 download)
Download or read book Memory Mass Storage written by Giovanni Campardo and published by Springer Science & Business Media. This book was released on 2011-02-04 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Memory Mass Storage describes the fundamental storage technologies, like Semiconductor, Magnetic, Optical and Uncommon, detailing the main technical characteristics of the storage devices. It deals not only with semiconductor and hard disk memory, but also with different ways to manufacture and assembly them, and with their application to meet market requirements. It also provides an introduction to the epistemological issues arising in defining the process of remembering, as well as an overview on human memory, and an interesting excursus about biological memories and their organization, to better understand how the best memory we have, our brain, is able to imagine and design memory.
Author :
Publisher :
ISBN 13 :
Total Pages : 992 pages
Book Rating : 4.E/5 ( download)
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
