Yazar "Uluışık, Çağatay" için listeleme

Antenna systems with beam forming and beam steering capabilities for HF skywave radars
Uluışık, Çağatay (TÜBİTAK, 2010)Radiation characteristics of linearly phased, periodic, planar dipole arrays, which can be used as transmitting/ receiving antenna systems for HF skywave radars, are investigated. Rectangular, triangular and trapezoidal ... 
DiffEq: A MATLABbased discretetime system simulator
Uluışık, Çağatay (IEEE, 201502)A MATLABbased discretetime system simulator (DiffEq) is introduced. This tool investigates linear constantcoefficient difference equations, which represent linear timeinvariant finitedimensional discretetime systems. ... 
DigiComm: a MATLAB  based digital communication system simulator
Uluışık, Çağatay; Sevgi, Levent (IEEE, 201402)A simple digital communication virtual tool, DigiComm, is introduced. This tool visualizes the transmission of binary data in different channels using frequencyshift keying (FSK) and accessing the shared media via ... 
Doğrusal fazlı/sırayla uyarılan, periyodik dipol dizilerinin frekans ve zaman domeni karakteristikleri
Uluışık, Çağatay; Topuz, Ercan; Sevgi, Levent (İstanbul Teknik Üniversitesi, 201002)Doğrusal fazlı/sırayla uyarılan periyodik dipol dizilerinin frekans ve zaman domeni yanıtları, Floquet dalga ve elemaneleman toplama gösterilimleri kullanılarak incelenmiştir. Her bir dipolün katkısının ayrı ayrı hesaplanıp ... 
A labVIEWbased analog modulation tool for virtual and real experimentation
Uluışık, Çağatay; Sevgi, Levent (IEEE, 201212)This tutorial discusses analogmodulation techniques with the LabVIEWbased AnalogMod package, developed for the illustration of different modulation types in undergraduate labs. The tool can generate and display the time ... 
A labviewbased virtual instrument for engineering education: a numerical fourier transform tool
Sevgi, Levent; Uluışık, Çağatay (TÜBİTAK, 2006)Engineering is based on practice. The minima of this practice should be given during the university education. This has become more and more comprehensive and expensive parallel to hightechnology devices developed and ... 
A Matlab  based visualization package for complex functions and their mappings and integrals
Uluışık, Çağatay; Sevgi, Levent (IEEE, 201202)This paper aims to provide a tutorial on the visualization of complex functions. The MATLABbased package ComplexGUI was prepared to illustrate mappings by elementary complex functions. The tool shows how userdefined ... 
A MATLABbased transmissionline virtual tool: finitedifference timedomain reflectometer
Sevgi, Levent; Uluışık, Çağatay (IEEE, 200602)This article introduces a simple virtual tool, TDRMeter, for the investigation and visualization of timedomain pulsed voltage/current, traveling along a terminated finitelength transmission line, without and with faults ... 
A MATLABbased twodimensional parabolic equation radiowave propagation package
Sevgi, Levent; Uluışık, Çağatay; Akleman, Funda (IEEE, 200508)This article introduces a simple MATLAB radiowave propagation package, SSPE_GUI, for the visualization of EM propagation over nonflat terrain through an inhomogeneous atmosphere, for waves radiated by a horizontally ... 
A MatlabBased virtual propagation tool: surface wave mixedpath calculator
Sevgi, Levent; Uluışık, Çağatay (Electromagnetics Acad, 20060326)A new MatlabBased, userfriendly virtual propagation tool (VPT) that can be used for multimixed path surface wave path loss calculations has been designed. Any multimixedpath surface wave propagation scenario may be ... 
A MATLABbased visualization package for planar arrays of isotropic radiators
Sevgi, Levent; Uluışık, Çağatay (IEEE, 200502)This article introduces a simple MATLAB antenna package (ANTEN_GUI) for the visualization of the radiation patterns, beamforming, and beamsteering capabilities of userdesigned planar arrays of isotropic radiators. The ... 
Modeling and simulation strategies in wireless propagation and coverage planning
Uluışık, Çağatay; Sevgi, Levent (IEEE, 200506)This paper presents twodimensional (2D) userfriendly, tailored with attractive and useful graphical user interfaces (GUI), Matlab propagation packages based on the classical knifeedge model and the parabolic equation ... 
Numerical modeling and simulation studies of 2D propagation over nonflat terrain and through inhomogeneous atmosphere
Uluışık, Çağatay; Sevgi, Levent (Springer, 2006)This paper introduces Matlabbased two dimensional (2D) virtual propagation tools (VT) which can be used to investigate EM propagation over userspecified nonflat terrain through inhomogeneous atmosphere. The VTs can be ... 
Radar cross section (RCS) modeling and simulation, part 1: a tutorial review of definitions, strategies, and canonical examples
Uluışık, Çağatay; Çakır, Gonca; Çakır, Mustafa; Sevgi, Levent (IEEE, 2008)Modeling and simulation strategies for radar cross section (RCS) prediction are reviewed, and a novel FDTDbased virtual RCS prediction tool is introduced in this twopart paper. Part 1 is reserved for a tutorial review. ... 
Some characteristics of radiation from linearly phased / sequentially excited periodic, rectangular arrays of dipoles
Uluışık, Çağatay; Topuz, Ercan; Sevgi, Levent (IEEE, 200806)Floquet wave and elementbyelement summation representations are implemented to investigate the radiation from a periodic, rectangular array of linearly phased/sequentially pulsed dipoles in the frequency and timedomains. ... 
Time  domain investigations of periodic rectangular dipole arrays
Uluışık, Çağatay; Topuz, Ercan; Sevgi, Levent (IEEE, 20071015)Radiation from large arrays of finite one and twodimensional periodic, linearly phased, electric current dipoles is investigated. The classical elementbyelement summation representation is modified to speed up the ... 
A tutorial on bessel functions and numerical evaluation of bessel integrals
Uluışık, Çağatay; Sevgi, Levent (IEEE, 200812)This paper aims to provide a tutorial on Bessel functions, and especially on the numerical evaluation of Bessel integrals. Bessel integrals are asymptotically evaluated using highfrequency methods, such as the stationaryphase ... 
Web  based virtual laboratories for antenna arrays, radiowave propagation and filter design
Uluışık, Çağatay; Sevgi, Levent (IEEE, 201108)This tutorial explains in detail the creation of a Webbased application using the MATLAB Web Server (MWS) toolbox of MATLAB. It aims to enable readers who a re familiar with MATLAB but don't have Webprogramming skills ...