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Visar resultat 21 - 25 av 130 avhandlingar som matchar ovanstående sökkriterier.

1. 21. Wideband Sigma-Delta Modulators

   Författare :Xiaolong Yuan; Svante Signell; Jakob Wikner; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sigma-delta modulator; feedforward; reconfigurable; quadrature bandpass filtering; Electronics; Elektronik;

   Sammanfattning : Sigma-delta modulators (SDM) have come up as an attractive candidatefor analog-to-digital conversion in single chip front ends thanks to the continuousimproving performance. The major disadvantage is the limited bandwidthdue to the need of oversampling. LÄS MER

3. 22. Reconfigurable On-Chip Instrument Access Networks : Analysis, Design, Operation, and Application

   Författare :Farrokh Ghani Zadegan; Integrerade elektroniksystem; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; On-chip instruments; reconfigurable networks; access time optimization; retargeting; fault management;

   Sammanfattning : The constant need for higher performance and more advanced functionality has made the design and manufacturing of modern electronic chips highly demanding. Moreover, the use of smaller transistors in modern chips has increased their sensitivity to aging and faults, hence the need to constantly monitor the correct operation of these chips. LÄS MER

4. 23. Programming of coarse-grained reconfigurable architectures

   Författare :Zain Ul-Abdin; Bertil Svensson; Veronica Gaspes; Dag Stranneby; Mario Porrmann; Örebro universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TECHNOLOGY; TEKNIKVETENSKAP; Computer science; Datavetenskap; Datalogi; Computer and Systems Science;

   Sammanfattning : Coarse-grained reconfigurable architectures, which offer massive parallelism coupled with the capability of undergoing run-time reconfiguration, are gaining attention in order to meet not only the increased computational demands of high-performance embedded systems, but also to fulfill the need of adaptability to functional requirements of the application. This thesis focuses on the programming aspects of such coarse-grained reconfigurable computing devices, including the relevant computation models that are capable of exposing different kinds of parallelism inherent in the application and the ability of these models to capture the adaptability requirements of the application. LÄS MER

5. 24. Selected Topics on Reconfigurable Intelligent Surfaces

   Författare :Emad Farouk Ibrahim; Rickard Nilsson; Jaap van de Beek; Laura Cottatellucci; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signal Processing;

   Sammanfattning : Reconfigurable intelligent surface (RIS) is a promising technology for wireless communications applications. A RIS is a thin planar array that consists of multiple reflecting elements, each of which is connected to a tunable chip and can induce a controllable reflection coefficient to the incident signal. LÄS MER

7. 25. RF Energy Harvesting for Zero-Energy Devices and Reconfigurable Intelligent Surfaces

   Författare :Morteza Tavana; Emil Björnson; Jens Zander; George Alexandropoulos; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronic waste; energy harvesting; Internet of Things; optimization; phased array; reconfigurable intelligent surfaces; stochastic geometry; wireless power transfer; wireless sensor networks; zero-energy devices.; Elektronikskrot; energiutvinning; sakernas internet; optimering; fasstyrda antenner; omkonfigurerbara intelligenta ytor; stokastisk geometri; trådlös kraftöverföring; trådlösa sensornätverk; nollenergienheter.; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : The growth of Internet of Things (IoT) networks has made battery replacement in IoT devices increasingly challenging. This issue is particularly pronounced in scenarios with a large number of IoT devices, in locations where IoT devices are difficult to access, or when frequent replacement is necessary. LÄS MER