Sökning: "Barker signals"

Hittade 2 uppsatser innehållade orden Barker signals.

  1. 1. Classification of ultrasonic signals using machine learning to identify optimal frequency for elongation control : Threaded fastening tools

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Mazen Bahy; [2022]
    Nyckelord :Machine Learning; Convolutions Neural Network CNN ; Barker signals; Ultrasonic sensors; Clamp-force; Threaded fastening assembly; Maskininlärning; konvolutionellt neuralt nätverk; Barker-signaler; Ultraljudssensorer; klämkraft; Åtdragningsmontering;

    Sammanfattning : Studying the preload in a screw joint has been the focus of today’s industry. The manufacturer reflects that demand by investigating different opportunities and techniques to develop this area. There are four different ways of controlling the tightening of bolts and joints to achieve the required clamp force that can hold for a specific preload. LÄS MER

  3. 2. Increasing Accuracy of Location Determination : Exploiting Phase Change Reconstruction and Timing Measurements

    Master-uppsats, KTH/Kommunikationssystem, CoS

    Författare :Lin Ji; [2007]
    Nyckelord :IEEE 802.11b; Correlation; Time stamping; FPGA; PSK; IEEE 802.11b; korrelation; Tidstämpel; FPGA; PSK;

    Sammanfattning : The thesis deals with improving location determination when using time of flight of radio signals to determine the location of a radiator. The goal of this project is to enhance an existing wireless data access point to perform an accurate measurement of the time of arrival of a data signal from a transmitter, and to combine this information with information from additional wireless data access points to determine the location of the transmitter. LÄS MER