Sökning: "real time"

Visar resultat 1 - 5 av 2625 avhandlingar innehållade orden real time.

  1. 1. Real-Time Time Metrology Using Space Geodetic Methods

    Författare :Carsten Rieck; Chalmers University of Technology; []
    Nyckelord :VLBI; Time metrology; UTC; TAI; time link combination; carrier phase; time transfer; real-time filtering; GNSS;

    Sammanfattning : Two main objectives in time and frequency metrology are the realization of the SI unit of time, and the construction and dissemination of atomic time scales based on the SI second. This thesis is mainly concerned with the latter of the two and has investigated the characteristics of space geodetic time and frequency comparison methods. LÄS MER

  2. 2. Real-Time Workload Models : Expressiveness vs. Analysis Efficiency

    Författare :Martin Stigge; Wang Yi; Sanjoy Baruah; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Real-time systems; task models; EDF; fixed-priority scheduling; schedulability analysis; response-time analysis; abstraction refinement; Datavetenskap med inriktning mot realtidssystem; Computer Science with specialization in Real Time Systems;

    Sammanfattning : The requirements for real-time systems in safety-critical applications typically contain strict timing constraints. The design of such a system must be subject to extensive validation to guarantee that critical timing constraints will never be violated while the system operates. LÄS MER

  3. 3. Travelling through time : Students’ interpretation of evolutionary time in dynamic visualizations

    Författare :Jörgen Stenlund; Lena Tibell; Konrad Schönborn; Niklas Gericke; Örebro universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; SAMHÄLLSVETENSKAP; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; SOCIAL SCIENCES; Evolution; visualization; time; learning; threshold; zooming;

    Sammanfattning : Evolutionary knowledge is important to understand and address contemporary challenges such as loss of biodiversity, climate change and antibiotic resistance. An important aspect that is considered to be a threshold concept in teaching and learning about evolution is the time it involves. LÄS MER

  4. 4. Configurable Hardware Support for Single Processor Real-Time Systems

    Författare :Susanna Nordström; Lars Asplund; Kristina Lundqvist; Krzysztof Kuchcinski; Mälardalens högskola; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; FPGA; real-time system; real-time kernel; RTOS; real-time operating system; vhdl; embedded system; Computer engineering; Datorteknik; Datavetenskap;

    Sammanfattning : This thesis describes a further development of a building block for programmable devices in embedded systems handling real-time functionality.Embedded systems are included in a variety of products within different technical areas such as industrial automation, consumer electronics, automotive industry, and communication-, and multimedia systems. LÄS MER

  5. 5. Node-Level Fault Tolerance for Embedded Real-Time Systems

    Författare :Joakim Aidemark; Chalmers University of Technology; []
    Nyckelord :fault injection; error recovery; reliability calculations; time redundancy; real-time kernels; error detection; analytical coverage estimation; distributed real-time systems;

    Sammanfattning : This thesis deals with cost-effective design and validation of fault tolerant distributed real-time systems. Such systems play an increasingly important role in embedded applications such as automotive and aerospace systems. LÄS MER