Sökning: "impulse radio"

Visar resultat 21 - 23 av 23 avhandlingar innehållade orden impulse radio.

  1. 21. Ultrasound Communication through Thin Plates: Understanding the Channel

    Författare :Asra Ashraf; Jaap van de Beek; Johan E. Carlson; Magnus Sandell; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signal Processing;

    Sammanfattning : Ultrasound, composed of sound waves with frequencies above the human audible range, has become widely used in various technological fields for digital communications. In the past, acoustic and ultrasonic waves were employed in military and commercial un-derwater wireless communication systems due to their superior performance compared to electromagnetic waves. LÄS MER

  3. 22. Over-the-Air Performance Estimation of Wireless Device Antennas

    Författare :Sathyaveer Prasad; Peter Händel; Gert Frölund Pedersen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis work presents studies on the available measurement methods for estimating the over-the-air (OTA) performance of wireless device antennas. This thesis is divided into two parts. LÄS MER

  4. 23. Efficient Realizations of Wide-Band and Reconfigurable FIR Systems

    Författare :Zaka Ullah Sheikh; Håkan Håkan Johansson; Oscar Gustafsson; Jeffery Coleman; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Complexity reduction is one of the major issues in today’s digital system designfor many obvious reasons, e.g., reduction in area, reduced power consumption,and high throughput. LÄS MER