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Data Compression With Error Control Coding For Space Telemetry With List Of References
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Book Synopsis Data Compression with Error-control Coding for Space Telemetry [with List of References] by :
Download or read book Data Compression with Error-control Coding for Space Telemetry [with List of References] written by and published by . This book was released on 1967 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Data Compression with Error-control Coding for Space Telemetry by : Thomas J. Lynch
Download or read book Data Compression with Error-control Coding for Space Telemetry written by Thomas J. Lynch and published by . This book was released on 1967 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Data Compression with Error-control Coding for Space Telemetry , June 1967 by :
Download or read book Data Compression with Error-control Coding for Space Telemetry , June 1967 written by and published by . This book was released on 1968 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Data Compression with Error-control Coding for Space Telemetry by : Thomas J. Lynch
Download or read book Data Compression with Error-control Coding for Space Telemetry written by Thomas J. Lynch and published by . This book was released on 1967 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The considerations involved in combining data compression and error control coding in space telemetry are analyzed through the use of two performance measures, D and R, which are similar to those measures used by Shannon for his rate distortion function. The average distortion D is a function of the source probability distribution, the overall system transitional probability matrix, and a cost matrix which signifies the relative importance of different types of data errors. The rate-ratio R is the reciprocal of the overall system compression ratio and includes the data expansion effect of additional timing data, identification data, and coding redundancy. Different schemes for supplying the timing information in a compressed system are analyzed and compared. A new timing scheme is developed which requires, on the average, fewer time words for a large class of data sources. A method is developed for uniquely encoding and decoding an entire sequence of time words for compressed data, utilizing the strict monotonicity of the sequence. The effects of the following system parameters and properties on the overall distortion and rate-ratio are analyzed: the error-control usefulness of natural data redundancy, errors in time information, the error-control usefulness of time word monotonicity, the probability distribution of the source, the bit-error probability of a binary symmetric channel, and the word compression ratio. A rationale for comparing and choosing among three systems--uncompressed-uncoded, compressed-uncoded, and compressed-coded--is given in terms of the performance measures D and R.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781725573949 Total Pages :26 pages Book Rating :4.5/5 (739 download)
Book Synopsis Communications and Information Research by : National Aeronautics and Space Administration (NASA)
Download or read book Communications and Information Research written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-16 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the development of new advanced instruments for remote sensing applications, sensor data will be generated at a rate that not only requires increased onboard processing and storage capability, but imposes demands on the space to ground communication link and ground data management-communication system. Data compression and error control codes provide viable means to alleviate these demands. Two types of data compression have been studied by many researchers in the area of information theory: a lossless technique that guarantees full reconstruction of the data, and a lossy technique which generally gives higher data compaction ratio but incurs some distortion in the reconstructed data. To satisfy the many science disciplines which NASA supports, lossless data compression becomes a primary focus for the technology development. While transmitting the data obtained by any lossless data compression, it is very important to use some error-control code. For a long time, convolutional codes have been widely used in satellite telecommunications. To more efficiently transform the data obtained by the Rice algorithm, it is required to meet the a posteriori probability (APP) for each decoded bit. A relevant algorithm for this purpose has been proposed which minimizes the bit error probability in the decoding linear block and convolutional codes and meets the APP for each decoded bit. However, recent results on iterative decoding of 'Turbo codes', turn conventional wisdom on its head and suggest fundamentally new techniques. During the past several months of this research, the following approaches have been developed: (1) a new lossless data compression algorithm, which is much better than the extended Rice algorithm for various types of sensor data, (2) a new approach to determine the generalized Hamming weights of the algebraic-geometric codes defined by a large class of curves in high-dimensional spaces, (3) some efficient improved geometric Goppa codes for disk memory s...
Book Synopsis Data Compression and Error Control Techniques with Applications by : Vito Cappellini
Download or read book Data Compression and Error Control Techniques with Applications written by Vito Cappellini and published by . This book was released on 1985 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Book Synopsis Proceedings of the Scientific Data Compression Workshop by : H. K. Ramapriyan
Download or read book Proceedings of the Scientific Data Compression Workshop written by H. K. Ramapriyan and published by . This book was released on 1989 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Adaptation of Error-control Coding Concepts to Data-compression by : Tarek H. Abdel-Nabi
Download or read book Adaptation of Error-control Coding Concepts to Data-compression written by Tarek H. Abdel-Nabi and published by . This book was released on 1981 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space Communications: Coding and detection theory by : Louise C. Bickford
Download or read book Space Communications: Coding and detection theory written by Louise C. Bickford and published by . This book was released on 1965 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications, Cumulative Index by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Business Service Check List written by and published by . This book was released on 1967 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Real-time Data Compression System for Apollo Pcm Telemetry by : A. George Carlton
Download or read book A Real-time Data Compression System for Apollo Pcm Telemetry written by A. George Carlton and published by . This book was released on 1969 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Johns Hopkins University Applied Physics Laboratory (APL) has developed a method of applying data compression to the pulse coded modulation (PCM) telemetry bit stream from Apollo spacecraft. The compression could be applied to the data transmission on the link between the Manned Space Flight Network (MSFN) sites and Goddard Space Flight Center (GSFC) to give a savings in realized telephone cable capacity and to transmit more information to Mission Control. The method of data transmission developed permits all the data in the 51.2 kbps bit stream from the Command Service Module (CSM) or the Lunar Module (LM) to be sent in real time over two 2.4-kbps voice-data-quality telephone lines. Very basically, the system uses a zero order predictor with a variable window to screen out redundant data; run length encoding is used to encode the location sequence, and '2-9' encoding is used to encode the data values. Combining these two coding schemes results in 88 bits per frame, on the average. This technique requires modification of the present computer software only; it does not require any hardware changes. (Author).
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book National Union Catalog written by and published by . This book was released on 1973 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes entries for maps and atlases.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lossless Compression Handbook by : Khalid Sayood
Download or read book Lossless Compression Handbook written by Khalid Sayood and published by Elsevier. This book was released on 2002-12-18 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 21 chapters in this handbook are written by the leading experts in the world on the theory, techniques, applications, and standards surrounding lossless compression. As with most applied technologies, the standards section is of particular importance to practicing design engineers. In order to create devices and communication systems that can communicate and be compatible with other systems and devices, standards must be followed. *Clearly explains the process of compression and transmission of multimedia signals *Invaluable resource for engineers dealing with image processing, signal processing, multimedia systems, wireless technology and more