Essays about: "wave propagation in ground"

Showing result 1 - 5 of 10 essays containing the words wave propagation in ground.

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

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

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

    Abstract : 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. READ MORE

  3. 2. Sound propagation modelling with applications to wind turbines

    University essay from KTH/Mekanik

    Author : Julius Fritzell; [2019]
    Keywords : Sound propagation; Wind turbines; Wave equation; Helmholtz equation; Fourier transform; Chebyshev polynomials.;

    Abstract : Wind power is a rapidly increasing resource of electrical power world-wide. With the increasing number of wind turbines installed one major concern is the noise they generate. Sometimes already built wind turbines have to be put down or down-regulated, when certain noise levels are exceeded, resulting in economical and environmental losses. READ MORE

  4. 3. On the Influence of Scattering From a Power-pole on an Airport Radar

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

    Author : Ao Hu; [2019]
    Keywords : Power-pole; VOR System; Airplane; EFIE; MOM; RWG; Scattering.; Kraftstolpar; VOR Systemet; flygplan; EFIE; MoM; RWG; Spridning;

    Abstract : Power-poles are one of the common massive conducting structures in cities and countryside. To fulfill the remarkable increased electric power demand nowadays, the number and the size of power-poles are also growing over the past few decades. READ MORE

  5. 4. Propagation of Radio Waves in a Realistic Environment using a Parabolic Equation Approach

    University essay from Linköpings universitet/Teoretisk Fysik

    Author : Jonas Ehn; [2019]
    Keywords : Electromagnetic fields; wave propagation; radar; parabolic equation; split-step Fourier method;

    Abstract : Radars are used for range estimation of distant objects. They operate on the principle of sending electromagnetic pulses that are reflected off a target. This leads to the propagation of electromagnetic waves over large distances. As the waves propagate, they are affected by several aspects that decrease the performance of the radar system. READ MORE

  6. 5. Methodology for analysis of traffic-induced building vibrations

    University essay from Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Author : Rickard Torndahl; Tobias Svensson; [2017]
    Keywords : infinite elements; soil dynamics; structural dynamics; wave propagation; dynamic reduction; traffic-induced vibration; finite element method; building vibration; structural design; Technology and Engineering;

    Abstract : Urban population growth leads to denser cities where buildings are being constructed closer to sources of vibration like motorways, railways and tramways. The risk of disturbing vibrations is thereby increasing which could affect residents and sensitive equipment, for instance equipment used in hospitals. READ MORE