Essays about: "mobile phones signal"

Showing result 1 - 5 of 35 essays containing the words mobile phones signal.

  1. 1. Simulation and Testing of a MU-MIMO Beamforming System

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

    Author : Nazyar Mehdishishavan; Zonghan Wang; [2023]
    Keywords : Multi-User Multiple-Input Multiple-Output MU-MIMO ; Beamforming; Sounding Reference Signal SRS ; Reciprocity-based; Butler matrix; Advanced Antenna System AAS ; Technology and Engineering;

    Abstract : Multi-User Multiple-Input Multiple-Output (MU-MIMO) technology has become increasingly important in the field of wireless communication due to its ability to highly increase the capacity and efficiency of wireless networks [1]. Beamforming, as a technique used in MU-MIMO systems, improves network performance by improving signal quality and reducing interference. READ MORE

  3. 2. Design of a 13-Bit SAR ADC with kT/C noise cancellation technique

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

    Author : Shashank Keerthy Kumar; [2023]
    Keywords : Technology and Engineering;

    Abstract : One of the main limitations of a Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) is the large input capacitance needed to achieve the desired performance. This large input capacitance increases the total area of the ADC and it imposes the use of a powerful buffer to drive it. READ MORE

  4. 3. Robust heart rate estimation from a smartphone camera

    University essay from Malmö universitet/Fakulteten för teknik och samhälle (TS)

    Author : Ammar Darwesh; Miran Harivandy; [2022]
    Keywords : HR calculation; PPG; Photoplethysmography; HR calculation in smartphone;

    Abstract : When it comes to calculating physical activity, nowadays a wide variety of tools is at our disposal.The phones used daily incorporate functions that calculate, for example, the number of steps taken throughout the day. Using the tools to set personal goals or to review which physical properties deviate. READ MORE

  5. 4. Speaker verification: Advantages and limitations of a biologically inspired feature extractor

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

    Author : Maja Gajic; [2022]
    Keywords : Speaker verification; artificial neural network; ANN; feature extractor; Technology and Engineering;

    Abstract : Speaker verification is the process of verifying the identity of a person based on voice. This process usually encompasses the following steps: The speech signal is mapped into features using a feature extractor, these features are then classified using a post processor. READ MORE

  6. 5. Anomaly detection in 5G beam propagation

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

    Author : Katarina Hellgren; Phiphi Tran; [2021]
    Keywords : Machine learning; wireless communication; 5G; beam propagation; DBSCAN; KNN; anomaly detection; clustering; Technology and Engineering;

    Abstract : Advancements in today's technology has motivated invention of faster mobile communication systems. The fifth generation mobile network, 5G, is the latest version made by the third generation partnership project (3GPP) and expects to both increase connection speed and reduce latency, which eventually will make it applicable in supporting state-of-the art technologies such as virtual reality and self-driving vehicles among others. READ MORE