Sökning: "Millimeter Waves"

Visar resultat 1 - 5 av 14 uppsatser innehållade orden Millimeter Waves.

1. 1. Digitally Controlled Oscillator Topologies for mm-Wave Pulsed Coherent Radar

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Klas Junskog; [2023]
   Nyckelord :oscillators; mm-wave; radar; Technology and Engineering;

   Sammanfattning : The advancement of future generations of wireless communication and radar sensing warrants the need for mm-wave digitally controlled oscillators (DCOs) with high-frequency trade-offs in consideration. The purpose of this project is to investigate DCO topologies inspired from scientific literature. LÄS MER

3. 2. Exploring Near-Field SAR with mmWave Pulsed Coherent Radar

   Master-uppsats, Lunds universitet/Matematisk statistik

   Författare :Elina Yrlid; [2023]
   Nyckelord :SAR; Synthetic Aperture Radar; PCR; pulsed coherent radar; radar; mmWave; millimeter-wave; near-field; 60GHz; Technology and Engineering;

   Sammanfattning : This thesis explores the option to apply Synthetic Aperture Radar (SAR) techniques to image near-field targets utilizing mmWave pulsed coherent radar (PCR). The recent development of mmWave radars has broadened the scope for SAR, but there are few concrete examples explaining and demonstrating the fundamental SAR algorithms from a PCR perspective. LÄS MER

4. 3. Simulation of Radio Propagation Path in Indoor Environment

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Minu Revathikumar; [2022]
   Nyckelord :Indoor 3D propagation model; millimeter waves mmWaves ; 5G; Basic propagation mechanism; Excess loss; Inomhus 3Dspridnings modell; millimeter vågor mmVågor ; 5G; Grundläggande spridnings mekanism; Överskotts förlust;

   Sammanfattning : Several propagation channel models are designed to verify signal behavior in specific environments for future 5G cellular networks. Hence, with the massive development and demand of indoor wireless systems, a suitable design prior to deployment is required for energy and cost-efficient implementations. LÄS MER

5. 4. A Study on Data-driven Methods for Selection and Evaluation of Beam Subsets in 5G NR

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Nic Ekman; Ilias Theodoros Skordas; [2022]
   Nyckelord :5G; NR; telecom; telecommunications; ML; machine learning; algorithms; beam; widebeam; propagation; beamforming; subset; RAN; radio; radio environment; ericsson; Technology and Engineering;

   Sammanfattning : 5G New Radio is the next generation of mobile networks and it comes with promises of ultra-high speeds, ultra-high reliability and ultra-low latency. This has posed a challenge for the engineers entrusted with the task of finding solutions which could fulfil the specification, and as a result, some promising areas have received increased attention in recent years. LÄS MER

7. 5. Beamforming router as relay to increase 5G cell coverage

   Master-uppsats, Blekinge Tekniska Högskola/Institutionen för datavetenskap

   Författare :Jhansi Dunuka; Nikolai Panagiotou; [2021]
   Nyckelord :Beamforming; MIMO; 5G; NR; Direction of Arrival; Relay;

   Sammanfattning : The growing traffic and global bandwidth shortage for broadband cellular communi-cation networks has motivated to explore the underutilized millimeter wave frequencyspectrum for future communications. Fifth generation (5G) is the key to empow-ering new services and use cases for people, businesses, and society at large. LÄS MER