Sökning: "EVM"

Visar resultat 1 - 5 av 11 avhandlingar innehållade ordet EVM.

1. 1. Numerical Investigation of Some Heat Transfer Topics with Relevance to Gas Turbines

   Författare :Arash Saidi; Värmeöverföring; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vakuumteknik; Maskinteknik; vacuum technology; vibration and acoustic engineering; hydraulics; Mechanical engineering; plasma; fluiddynamik; Gaser; Ribbed ducts; intercoolers; EASM; EVM; gas turbine; CFD; heat exchangers; extended surfaces; offset strip fin; heat transfer enhancement; Thermal engineering; applied thermodynamics; Termisk teknik; hydraulik; termodynamik; Gases; plasmas; fluid dynamics; vibrationer; akustik;

   Sammanfattning : The first part of the investigation is related to the heat transfer and fluid flow problem inside ribbed ducts with a square cross section. The typical applications of this problem are in the cooling of gas turbine blades and guiding vanes. The second part is related to application of intercoolers in gas turbine systems. LÄS MER

3. 2. Optimization and Learning for Large-Scale MIMO-OFDM Wireless Systems : Theory, Algorithms, and Applications

   Författare :Shashi Kant; Carlo Fischione; Mats Bengtsson; Bo Göransson; Gabor Fodor; Christoph Studer; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; First-Order Optimization; Convex Optimization; ADMM; Three-operator ADMM TOP-ADMM ; EVM; OOBE; PAPR; ACLR; MIMO; OFDM; Federated Learning; Telecommunication; Telekommunikation; Optimeringslära och systemteori; Optimization and Systems Theory; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : The requirements for next-generation wireless communications networks, particularly fifth-generation (5G) and beyond, are driven by at least three broad use cases. These include enhanced mobile broadband services to support extremely high data rates in terms of network or per user in both uplink and downlink, massive machine-type communications to accommodate massive internet-of-things applications, and critical machine-type communications to handle mission-critical applications that require ultra-high reliability and low latency. LÄS MER

4. 3. Optical Performance Monitoring in Digital Coherent Communications: Intelligent Error Vector Magnitude Estimation

   Författare :Yuchuan Fan; Oskars Ozolins; Xiaodan Pang; Aleksejs Udalcovs; Sergei Popov; Marco Ruffini; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Physics; Fysik;

   Sammanfattning : The rapid development of data-driven techniques brings us new applications, such asfifth-generation new radio (5G NR), high-definition video, Internet of things (IoT),etc., which has greatly facilitated our daily lives. LÄS MER

5. 4. Study of Six-Port Modulators and Demodulators for High-Speed Data Communications

   Författare :Joakim Östh; Shaofang Gong; Magnus Karlsson; Robert Weigel; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : There is an increasing demand for high-speed wireless data communications to support consumers’ need for, among other things, real time streaming of high definition video and fast file transfers. One radio architecture that has a potential to meet the increasing demand for high-speed data communications is a radio technique based on the six-port architecture. LÄS MER

7. 5. All-Digital PWM Transmitters

   Författare :Muhammad Touqir Pasha; Ted Johansson; Mark Vesterbacka; Henrik Sjöland; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Electronic devices with wireless connectivity are fast becoming a part of daily life. According to some estimates, in the next five years, 10 billion new devices with internet connectivity would be produced. LÄS MER