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Showing result 1 - 5 of 281 swedish dissertations matching the above criteria.

  2. 1. Synchronization for Multicarrier Systems

    Author : Daniel Landström; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signal processing; Signalbehandling; Frequency estimation; Time estimation; Maximum-Likelihood; Synchronization; OFDM; DMT;

    Abstract : This thesis has synchronization of Multicarrier systems, more specifically Orthogonal Frequency Division Multiplexing (OFDM) systems, as the main theme. The thesis addresses two areas, the first proposing and analyzing time and frequency estimators for OFDM systems, the second investigating more practical issues around these estimators. READ MORE

  4. 2. Synchronization in Turbo Coded Systems

    Author : Bartosz Mielczarek; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; timing offset; Turbo codes; synchronization; maximum a-posteriori estimation; phase offset; BCJR algorithm.; maximum likelihood estimation;

    Abstract : Turbo codes and their unusual properties have attracted significant attentionof the information theory community. There already exist many articlesand papers devoted to the theory of these codes. This thesis, however,focuses on practical implementation issues of turbo codes, with synchronizationproblems as the main topic. READ MORE

  5. 3. On synchronization of CDMA systems

    Author : Fredrik Malmsten; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; code-spread CDMA CS-CDMA ; maximum-likelihood; channel parameter estimation; multipath; synchronization; near-far resistance; direct-sequence code-division multiple-access DS-CDMA ;

    Abstract : .... READ MORE

  6. 4. On synchronization of heavy truck transmissions

    Author : Daniel Häggström; Ulf Sellgren; Stefan Björklund; Anders Hedman; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; synchronization; synchronizers; gear shift; gearbox; synkronisering; växling; växellåda; Machine Design; Maskinkonstruktion;

    Abstract : Gear shifts are becoming more and more important as engines are adapted to low speed high torque working conditions. Synchronizers are key components for successful gear shifts. To adapt the synchronizers to new working conditions due to adaptations to new engines, improved development tools are needed. READ MORE

  7. 5. Synchronization and consistency in concurrent systems

    Author : Anders Gidenstam; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; event ordering; lock-free; memory management; time-stamping system; plausible clocks; non-blocking; logical clocks; synchronization;

    Abstract : This thesis investigates aspects of synchronization and coordination in concurrent systems. In such systems synchronization and coordination are highly important as they form a basis for how a set of entities can collaborate to solve a task. READ MORE