Ara
Toplam kayıt 16, listelenen: 1-10
Doppler radars in avionics systems
(Işık Üniversitesi, 2003-08)
At the beginning of my thesis I give a brief information about history of Doppler radars. Then I studied the types and working principles of Doppler radars. After that I researched the avionic systems and radar types which ...
Performance analysis of space time transmit diversity in UMTS under presence of carrier phase offset
(Işık Üniversitesi, 2003-12)
The reguirements for the next generation of mobile communication systems are primarily driven by the explosive growth of worldwide mobile communication subscribers. Additionaly, 3G systems will allow various of new services ...
Design and performance analysis of a novel trellis coded space-time-frequency transmission scheme
(Işık Üniversitesi, 2004-07)
This work is concerned with a transmitter diversity technique for wireless communications over frequency selective fading channels. The proposed technique utilizes orthogonal frequency division multiplexing (OFDM) to ...
GSM and GPRS security
(Işık Üniversitesi, 2004-09)
In this thesis study, today's popular mobile voice (GSM) and data (GPRS) communication technologies (as an intorduction) and their security were studied. GSM arhitecture, key components of the GSM, security fonctions, and ...
A novel channel estimation algorithm for ultra wideband communication systems
(Işık Üniversitesi, 2005)
Ultra WideBand (UWB) is an emerging technology that is currently investigated as one viable solution for high capacity, short range wireless indoor systems. Its robustness in dense multipath environments, low cost and low ...
Construction of multivariable broadband matching networks : an integrated design tool
(Işık Üniversitesi, 2009)
One of the major problems in high frequency applications is designing matching circuits. Real frequency design of broadband matching networks is a commonly preferred approach since experimental termination data is directly ...
Channel adaptive user cooperation strategies for fading wireless channels
(Işık Üniversitesi, 2006)
In this dissertation, a channel adaptive method is proposed for a two user halfduplex cooperative communication system under the assumption of perfect channel state information at the transmitters and the receiver. An ...
Artifact reduction in occluded regions for motion compensated frame interpolation
(Işık Üniversitesi, 2008)
In this paper, we propose a new method to be used in occluded regions for motion compensated frame interpolation. Frame rate up conversion is becoming much more important when usage of digital video systems increase. ...
Ultra wideband indoor communication
(Işık Üniversitesi, 2005-07)
Ultra-wideband communication with its attractive features has received great interest from the industry and the research community. It has the potential for very high data rates with low processing powers. With its extremely ...
Cluster based sensors scheduling in a target tracking application with particle filter method
(Işık Üniversitesi, 2006)
In multisensor applications, management of sensors is neccessary for the classification of data they produce and for the efficient use of sensors as well. One of the most important aspects in sensor management is the sensor ...