Essays about: "space wave propagation"

Showing result 1 - 5 of 11 essays containing the words space wave propagation.

1. 1. Modeling wave behavior with linear wave theory

   University essay from Umeå universitet/Institutionen för fysik

   Author : Elsa Renström; [2024]
   Keywords : ;

   Abstract : This thesis aimed to look at the behaviours of the water beneath waves from a modeling and simulations point of view. We have investigated how to use Linear wave theory (LWT) to model the kinematic movements in water governed by free ocean waves. The model assumes the surface to consist of a superposition of sinusoidal waves. READ MORE

3. 2. Parabolic equation models simulating LoS MIMO conditions

   University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

   Author : Zarafshan Carneil; [2023]
   Keywords : MIMO; channel capacity; phase difference; MIMO phase;

   Abstract : This thesis explores and develops a simulation model for Line of Sight(LoS) Multiple-Input Multiple-Output (MIMO) systems in complex environments. The focus will be on implementing a 2 × 2-MIMO system in order to study phase differences of the received signals. READ MORE

4. 3. mmWave Coverage Extension Using Reconfigurable Intelligent Surfaces in Indoor Dense Spaces

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Zhenyu Li; [2023]
   Keywords : mmWave Communication; Reconfigurable Intelligent Surface; Ray Tracing; Indoor Dense Spaces;

   Abstract : Millimeter-wave (mmWave) is widely investigated for indoor communication scenarios thanks to the available rich spectrum. However, the shortened antenna size and the high frequency make mmWave extra sensitive to blockages. READ MORE

5. 4. Finite Difference Approximations for Wave Propagation

   University essay from Linköpings universitet/Tillämpad matematik; Linköpings universitet/Tekniska fakulteten

   Author : Sebastian Lindqvist; [2022]
   Keywords : Finite Difference; Maxwell’s equations; wave propagation; advection equation; partial differential equations;

   Abstract : Finite difference approximations are methods for solving differential equations by approximating derivatives. This work will begin with how to solve a partial differential equation (PDE) called the advection equation, ut + cux = 0. READ MORE

6. 5. Lean Beam Management for New Radio

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Nawanit Kumar; [2020]
   Keywords : 5G; NR; MIMO; Beam management; CSI-RS; Technology and Engineering;

   Abstract : The use of millimetre-wave frequencies in Fifth generation New Radio has lead to high path loss due to radio propagation environment. Simultaneously, high data rates is a must for current products due to high market demand. This requirement accounts for efficient tracking of the best beam for the user equipment to stay connected to it. READ MORE