Sökning: "code theory"

Visar resultat 1 - 5 av 250 avhandlingar innehållade orden code theory.

  1. 1. Towards a Theory of Codes for Iterative Decoding

    Författare :Michael Lentmaier; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bit error probability; low-density parity-check convolutional code; low-density parity-check code; turbo code; convolutional code; channel coding; iterative decoding; Informatics; systems theory; Informatik; systemteori;

    Sammanfattning : Channel codes in combination with iterative decoding techniques are a both powerful and efficient method to protect data against disturbances in digital communication systems. This thesis deals with various code constructions for block-wise and continuous transmission that have the potential to achieve low bit error rates with iterative decoding, even when operating close to the Shannon limit. LÄS MER

  3. 2. Tales of Tailbiting Codes

    Författare :Marc Handlery; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; maximum-likelihood decoding algorithm; minimum distance; active distance; woven convolutional code; tailbiting termination method; convolutional code; tailbiting code; Informatics; systems theory; Informatik; systemteori;

    Sammanfattning : Tailbiting codes are error correcting codes and can be used in digital transmission systems. They are obtained by terminating convolutional codes into block codes. This thesis consists of an introduction to convolutional and tailbiting codes, and the Papers A--G that include the main results. LÄS MER

  4. 3. The Corporate Code of Ethics at Home, Far Away and in Between : Sociomaterial Translations of a Traveling Code

    Författare :Maira Babri; Ulrica Nylén; Tommy Jensen; Niklas Egels-Zandén; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Corporate Code of Ethics; Translation; Actor-Network Theory; Sociomateriality; Fluid; Vaporous;

    Sammanfattning : Corporate codes of ethics (CCEs) have become increasingly prevalent as overarching ethical guidelines for multinational corporations doing business around the globe. As formal documents, governing corporations’ work, policies, and ways of doing business, CCEs are meant to guide all business activities and apply to all of the corporation’s employees, suppliers, and business partners. LÄS MER

  5. 4. The code of Concord : Emerson's search for universal laws

    Författare :Anders Hallengren; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; Ralph Waldo Emerson 1803-1882 ; natural law; ethics; aesthetics; esthetics; politics; USA; ethics and physics; laws of nature; laws of society; laws of art; American literature; American philosophy; American history; legal philosophy; constitutional law; human rights; rule of law; Literature; Litteraturvetenskap; Theoretical philosophy; Teoretisk filosofi; Practical philosophy; Praktisk filosofi; Public law; Offentlig rätt; Other law; Övrig rätt; Theory of science; Vetenskapsteori; History of science and ideas; Idé- o lärdomshistoria; Political science; Statsvetenskap; Literature; litteraturvetenskap; praktisk filosofi; Practical Philosophy;

    Sammanfattning : The purpose of this work is to detect a pattern: the concordance of Ethics and Aesthetics, Poetics and Politics in the most influential American thinker of the nineteenth century. It is an attempt to trace a basic concept of the Emersonian transcendentalist doctrine, its development, its philosophical meaning and practical implications. LÄS MER

  7. 5. On Tailbiting Codes from Convolutional Codes

    Författare :Per Ståhl; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; computer technology; Systems engineering; Teknik; Technological sciences; encoder inverse; systematic feedback encoder; state complexity; trellis; tailbiting termination method; tailbiting code; channel coding; convolutional code; Data- och systemvetenskap; Informatics; systems theory; Informatik; systemteori;

    Sammanfattning : Tailbiting is a method to terminate convolutional codes into block codes. We call these block codes tailbiting codes. This thesis focuses on the encoding of tailbiting codes. The tailbiting method is carefully investigated. LÄS MER