Essays about: "Spatial Channel Model"

Showing result 1 - 5 of 24 essays containing the words Spatial Channel Model.

  1. 1. Sparse Approximation of Spatial Channel Model with Dictionary Learning

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

    Author : Matilda Zhou; [2022]
    Keywords : Spatial channel model SCM ; dictionary learning; compressive sensing CS ; discrete Fourier transform DFT ; overcomplete discrete Fourier transform ODFT ; Rumslig kanalmodell; ordbokslärning; kompressionsavkänning; diskret Fourier-transform; överkomplett diskret Fourier-transform;

    Abstract : In large antenna systems, traditional channel estimation is costly and infeasible in some situations. Compressive sensing was proposed to estimate the channel with fewer measurements. Most of the previous work uses a predefined discrete Fourier transform matrix or overcomplete Fourier transform matrix to approximate the channel. READ MORE

  3. 2. Applying Machine Learning for Generating Radio Channel Coefficients : Practical insights into the process of selectingand implementing machine learning algorithms for spatial channel modelling

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

    Author : Adrian Zander; [2021]
    Keywords : Spatial Channel Model; Deep Generative Networks; Variational Autoencoder; Simulation; Spatial Channel Model; Deep Generative Networks; Variational Autoencoder; Simulation;

    Abstract : One cornerstone in building future 5G and beyond wireless systems is to mimic the real-world environment using a simulator. The simulator needs to reflect the experienced propagation environment by the device in different scenarios. READ MORE

  4. 3. Brain disease classification using multi-channel 3D convolutional neural networks

    University essay from Linköpings universitet/Statistik och maskininlärning

    Author : Andreas Christopoulos Charitos; [2021]
    Keywords : Deep Learning DL ; fMRI; CNNs; Tensorflow Keras; ASD; Medical Imaging;

    Abstract : Functional magnetic resonance imaging (fMRI) technology has been used in the investigation of human brain functionality and assist in brain disease diagnosis. While fMRI can be used to model both spatial and temporal brain functionality, the analysis of the fMRI images and the discovery of patterns for certain brain diseases is still a challenging task in medical imaging. READ MORE

  5. 4. Assessment of hydropower mitigation measures for fish habitat rehabilitation with a coupled eco-hydraulic model : A case study on the Skålan-Äldern stretch

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Francesca Polato; [2021]
    Keywords : hydropower; mitigation measures; ecological flow assessment; hydraulic modeling; physical habitat models; vattenkraft; begränsande åtgärder; ekologisk flödesbedömning; hydraulisk modellering; fysiska livsmodeller;

    Abstract : In the past century, hydropower development in Sweden has been facilitated by the lack of appropriate environmental legislation. This exploitation has resulted in the current poor ecological status of most Swedish water bodies affected by hydropower, and in the need for new policies that reflect the 2000 European Water Framework Directive. READ MORE

  6. 5. Infiltration, hydrogeology, and heterogeneity - Management of pressure and flow: A case study for the Varberg tunnel project

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Lisa Risby; [2020-07-08]
    Keywords : short duration hydraulic tests; hydraulic conductivity; radius of influence; infiltration; heterogeneity; confined and unconfined aquifer;

    Abstract : This thesis aims to describe a conceptual model of the sedimentology for Swedish (or nordic) conditions of heterogeneous aquifers but focus is on a case study in Varberg. This to facilitate the identification of main water-bearing units (e.g. READ MORE