Essays about: "signal enhancement"

Showing result 16 - 20 of 100 essays containing the words signal enhancement.

  1. 16. Enhancing the Decoding of Short LDPC Codes with Stochastic Sequences

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

    Author : Yuyuan Gu; Haien Li; [2021]
    Keywords : 5G; channel coding; LDPC codes; stochastic decoding; stochastic computation; Technology and Engineering;

    Abstract : Low-Density Parity-Check (LDPC) codes are one of the most popular codes used in nowadays’ communication due to their high coding efficiency at low decoding complexity. With these characteristics, LDPC codes are suitable for high-speed information transmission systems. READ MORE

  3. 17. Deep Convolutional Nonnegative Autoencoders

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

    Author : Yann Debain; [2020]
    Keywords : ;

    Abstract : In this thesis, nonnegative matrix factorization (NMF) is viewed as a feedbackward neural network and generalized to a deep convolutional architecture with forwardpropagation under β-divergence. NMF and feedfoward neural networks are put in relation and a new class of autoencoders is proposed, namely the nonnegative autoencoders. READ MORE

  4. 18. Investigating magnetic reconnectionevents in the solar chromosphere

    University essay from Stockholms universitet/Institutionen för astronomi

    Author : Filippa Koskelainen; [2020]
    Keywords : ;

    Abstract : The focus of this thesis is to investigate magnetic reconnection in the solar chromosphere by usinghigh spatial resolution data including polarimetric signals. Magnetic reconnection occurs whenmagnetic field lines of different directions come in contact and change the configuration of the fieldlines. READ MORE

  5. 19. Liver contrast-enhancement on Computed tomography : a question of to be or not to be in the right phase

    University essay from Uppsala universitet/Institutionen för kirurgiska vetenskaper

    Author : Jennifer Andersson; [2020]
    Keywords : Computed tomography; contrast media; liver; contrast enhancement; datortomografi; kontrastmedel; lever; kontrastuppladdning;

    Abstract : Background: Computed tomography (CT), is commonly used imaging technique in cancer patients. In CT performed for tumour staging to detect the spread of tumours, the liver is a common place for metastases. READ MORE

  6. 20. Indoor Positioning Bluetooth Angle of Arrival

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

    Author : Mohammed M T Amer; Khadeeja Gamal Mohammed Atteya; [2020]
    Keywords : Angle of Arrival; Bluetooth Low energy; Indoor positioning; Internet of Things; Bluetooth direction finding.; Technology and Engineering;

    Abstract : In this thesis, we present the Angle of Arrival (AoA) technique to detect the direction of a source indoors using radio frequency (RF) signal. This technique estimates the direction of the incoming Bluetooth signal, using a tag as a transmitter and an array equipped with a number of antennas as a receiver. READ MORE