Search for essays about: "ultra wide band"

Showing result 1 - 5 of 8 essays containing the words ultra wide band.

2. 1. UWB Antennas for Wall Penetrating Radar Systems

   University essay from Högskolan i Gävle/Högskolan i Gävle/Högskolan i Gävle/Radio Center GävleHögskolan i GävleInstitutionen för teknik och byggd miljö

   Author : Otar Javashvili; [2009]
   Keywords : Vivaldi Antenna; Ultra-wide Band; Radar; Wireless Communications;

   Abstract : Basic properties and new design principles of ultra wideband Vivaldi antennas are presentedand discussed in this paper. The focus will be on the modeling of Vivaldi antenna design curves, by which it is constructed; its simulation results, realization and the measurements. READ MORE

4. 2. An Analysis of Bluetooth Technology,Features,Future and Security

   University essay from Blekinge Tekniska Högskola/COM

   Author : Malik Ullah; [2009]
   Keywords : datavetenskap; computer science - networks and communications; computer science - computersystems; computer science - general; personal area networks; asynchronous connection link; ultra wide band; special interest group; bluetooth technology;

   Abstract : In this thesis I present my analysis on various aspects of Bluetooth wireless technology. The Bluetooth technology is relatively new as compared to other technologies and there is huge potential of its growth and practical application. READ MORE

5. 3. A Study of Fast Backprojection Algorithm for UWB SAR and a Comparison between Fast- and Global Backprojection

   University essay from Blekinge Tekniska Högskola/Sektionen för Teknik (TEK)

   Author : Hawa Yves; [2008]
   Keywords : signalbehandling; signal processing; telekommunikation; telecommunications; synthetic aperture radar; ultra wide-band; time-domain algorithms; global backprojection; fast backprojection; sar image processing; interpolation techniques.;

   Abstract : In this thesis, we present a study of the Fast Backprojection (FBP) known to be a fast time-domain algorithm for image retrieval in Synthetic Aperture Radar (SAR). As a time domain algorithm, FBP possesses inherent advantages such as perfect motion compensation, unlimited scene size, wide bandwidth and ability to handle long integration angles. READ MORE

6. 4. Digital-To-Analog Converter for FSK

   University essay from Linköpings universitet/Institutionen för systemteknik

   Author : Athfal Salim J; [2007]
   Keywords : DAC; FSK; 10-bit; layout; 130 nm; Digital-To-Analog; CMOS; Common centroid;

   Abstract : This thesis is one part of a overall task of designing a module for frequency shift keying (FSK) to be used in an Ultra Wide Band (UWB) system. The FSK system has a Direct Digital Synthesizer (DDS) and Digital-to-Analog (DAC). The DACs differential current signals are directly fed to a RF (Radio Frequency) unit that generates the UWB RF signal. READ MORE

7. 5. Investigation of an optimal utilization of Ultra-wide band measurements for position purposes

   University essay from Karlstads universitet/Institutionen för informationsteknologi

   Author : Vishnu Vardhan Siripi; [2006]
   Keywords : Ultra-wideband; interference cancellation; TDOA algorithm;

   Abstract : Ultra wideband (UWB) communication systems refers to systems whose bandwidth is many times greater than the “narrowband” systems (refers to a signal which occupies only small amount of space on the radio spectrum). UWB can be used for indoor, communications for high data rates, or very low data rates for substantial link distances because of the extremely large bandwidth, immune to multi-path fading, penetrations through concrete block or obstacles. READ MORE