Sökning: "cognitive processing"

Visar resultat 1 - 5 av 268 avhandlingar innehållade orden cognitive processing.

  1. 1. Model-Based Cognitive Radio Strategies

    Författare :Kasra Haghighi; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Spectrum utilization; cognitive radio; censorship; CLAPP; sequential detection;

    Sammanfattning : Many frequency bands for wireless services are severely underutilized by the primary users (PU) to which these bands are assigned. This motivates a new class of wireless communication devices known as cognitive radios (CR), which identify vacant spectrum and transmit accordingly. LÄS MER

  3. 2. Exploring Cognitive Spare Capacity : Executive Processing of Degraded Speech

    Författare :Sushmit Mishra; Mary Rudner; Stefan Stenfelt; Jerker Rönnberg; Thomas Lunner; Mithell S. Sommers; Linköpings universitet; []
    Nyckelord :Working memory; cognitive spare capacity; updating; inhibition; Arbetsminne; kognitiv reservkapacitet; uppdatering; inhibition;

    Sammanfattning : Cognitive resources, specifically working memory capacity are used for listening to speech, especially in noise. Cognitive resources are limited, and if listeners allocate a greater share of these resources to recovering the input signal in noise, fewer resources are available for interpreting and encoding its linguistic content. LÄS MER

  4. 3. Cognitive Interactive Robot Learning

    Författare :Benjamin Fonooni; Hellström Thomas; Lars Erik Janlert; Christian Balkenius; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Learning from Demonstration; Imitation Learning; Human Robot Interaction; High-Level Behavior Learning; Shared Control; Cognitive Architectures; Cognitive Robotics; Priming; business data processing; administrativ databehandling;

    Sammanfattning : Building general purpose autonomous robots that suit a wide range of user-specified applications, requires a leap from today's task-specific machines to more flexible and general ones. To achieve this goal, one should move from traditional preprogrammed robots to learning robots that easily can acquire new skills. LÄS MER

  5. 4. Cognitive Workload and the Driver : Understanding the Effects of Cognitive Workload on Driving from a Human Information Processing Perspective

    Författare :Christopher J.D. Patten; Ola Svenson; Håkan Alm; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Cognitive workload; human information processing; driver distraction; human error; performance shaping factors PSF ; intelligent transport systems ITS ; peripheral detection task PDT ; Psychology; Psykologi; psykologi; Psychology;

    Sammanfattning : This doctoral dissertation in psychology focuses on present day transport research issues. Society is affected by the way that our transport system works. In one way or another, the use of the transport system involves different levels of human involvement and control. LÄS MER

  7. 5. Distributed Detection in Cognitive Radio Networks

    Författare :Ahti Ainomäe; Mats Bengtsson; Tõnu Trump; Olav Tirkkonen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cognitive Radio; distributed estimation; distributed detection; Diffusion LMS; Diffusion Networks; Adaptive Networks; Spectrum Sensing; Energy Detection; Random Matrix; Largest Eigenvalue Detection.; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : One of the problems with the modern radio communication is the lack of availableradio frequencies. Recent studies have shown that, while the available licensed radiospectrum becomes more occupied, the assigned spectrum is significantly underutilized. LÄS MER