Sökning: "Synchronization"

Visar resultat 11 - 15 av 283 avhandlingar innehållade ordet Synchronization.

1. 11. Design of Wireless Communication Systems -- Issues on Synchronization, Channel Estimation and Multi-Carrier Systems

   Författare :Fredrik Tufvesson; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pre-compensation; pilot pattern; Elektronik; orthogonal frequency division multiplex; Wireless; synchronization; detection; preambles; channel estimation; Electronics; superimposed pilot sequences; sub-channel bandwidth; precoding;

   Sammanfattning : This thesis deals with certain aspects in the design of wireless communications systems. It is focused on problems related to the mobile or wireless channel: synchronization, channel estimation and design of wireless orthogonal frequency division multiplex (OFDM) systems. LÄS MER

3. 12. Reactive Shared Objects for Interprocess Synchronization

   Författare :Phuong Ha; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; non-blocking; distributed data structures; online algorithms; trees; reactive synchronization; practical; lock-free;

   Sammanfattning : In parallel processing environments such as multiprocessor systems, processes are synchronized using concurrent objects, which allow many concurrent processes to access them at the same time. The performance of these concurrent objects heavily relies on the load conditions of the surrounding environment (e.g. LÄS MER

4. 13. Estimation of synchronization parameters

   Författare :Jaap van de Beek; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signal Processing;

   Sammanfattning : This thesis deals with the estimation of synchronization parameters in {Orthogonal Frequency Division Multiplexing} (OFDM) communication systems and in active ultrasonic measuring systems. Estimation methods for the timing and frequency offset and for the attenuation taps of the frequency selective channel are presented and investigated. LÄS MER

5. 14. Improving Clock Synchronization Performance in Industrial Networks

   Författare :Rahul Nandkumar Gore; Elena Lisova; Johan Åkerberg; Mats Björkman; Han Song; Mälardalens universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Clock synchronization; Industrial networks; Internet of things; Industry 4.0; Network Calculus; Computer Science; datavetenskap;

   Sammanfattning : The recent advances in cyber-physical systems and industrial internet-of-things (IIoT) have enabled the convergence of information technology (IT) and operational technology (OT) worlds of industrial automation systems achieving higher productivity, reliability, and revenues. The availability of business-critical and production-critical data on the converged network has enabled new and advanced network-centric applications that require time-constrained embedded devices to be connected to “the internet. LÄS MER

7. 15. Multi-Sensor Data Synchronization using Mobile Phones

   Författare :Jonas Wåhslén; Thomas Lindh; Jens Eliason; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wireless body sensor networks; wireless personal area network; sport technology; Bluetooth performance; time synchronization; data fusion; mobile phone application.;

   Sammanfattning : Body sensor networking is a rapidly growing technology. Today wearable sensors are used to measure and monitor e.g. pulse, temperature, skin conductance, heart activity, and movement (through GPS or inertial measurement units). LÄS MER