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Data Compression With Error Control Coding For Space Telemetry
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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 [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 , 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:
Download or read book NASA Technical Report written by and published by . This book was released on 1967 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1995 with total page 456 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.
Book Synopsis Monthly Catalog, United States Public Documents by : United States. Superintendent of Documents
Download or read book Monthly Catalog, United States Public Documents written by United States. Superintendent of Documents and published by . This book was released on 1968 with total page 1716 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 Government-wide Index to Federal Research & Development Reports by :
Download or read book Government-wide Index to Federal Research & Development Reports written by and published by . This book was released on 1967-05 with total page 1470 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:
Author :United States. National Aeronautics and Space Administration. Scientific and Technical Information Division Publisher : ISBN 13 : Total Pages :436 pages Book Rating :4.E/5 ( download)
Book Synopsis A Selected Listing of NASA Scientific and Technical Reports by : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Download or read book A Selected Listing of NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1968 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. National Aeronautics and Space Administration Scientific and Technical Information Division Publisher : ISBN 13 : Total Pages :428 pages Book Rating :4.F/5 ( download)
Book Synopsis NASA Scientific and Technical Reports by : United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1968 with total page 428 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 1966 with total page 1320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Technical Abstracts - U. S. Goddard Space Flight Center by : Goddard Space Flight Center
Download or read book Technical Abstracts - U. S. Goddard Space Flight Center written by Goddard Space Flight Center and published by . This book was released on 1967 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes lists of GSFC technical documents published internally, not widely distributed, and: NASA technical memorandums, technical notes, and technical reports.
Download or read book Technical Abstracts written by and published by . This book was released on 1965 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: