Browsing by Author "Alp, Yaşar Kemal"
Now showing items 1-11 of 11
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ADMM based mainlobe power constrained phase-only sidelobe supression
(IEEE, 2014)A novel sidelobe suppression technique is proposed for phased arrays, where only the phases of the array elements are adjusted to suppress the gain in the direction of interest while keeping the mainlobe power at a certain ... -
Çok görevli öğrenme ile eşzamanlı darbe tespiti ve kipleme sınıflandırma
(IEEE, 2019-04)Bu çalışmada, elektronik harp sistemlerindeki sayısal almaç yapıları tarafından toplanan, ortamdaki tehdit radarların gönderdigi darbesel sinyal örnekleri üzerinden otomatik olarak eşzamanlı SGO (Sinyal Gürültü Oranı) ... -
Çok-bileşenli sinyallerin analizi için destek bölge uyarlamalı hermite-gauss açılımı
(IEEE, 2011-04)Zaman-frekans destek bölgesi orijin etrafında dairesel bir alana uyan bir sinyal bileşeni için, Hermite-Gauss açılımı en az sayıda taban fonsiyonu kullanarak en iyi temsili oluşturur. Ancak, orijinden uzakta ve dairesel ... -
Dipole source reconstruction of brain signals by using particle swarm optimization
(IEEE, 2009)Resolving the sources of neural activity is of prime importance in the analysis of Event Related Potentials (ERP). These sources can be modeled as effective dipoles. Identifying the dipole parameters from the measured ... -
ERP source reconstruction by using Particle Swarm Optimization
(IEEE, 2009)Localization of the sources of Event Related Potentials (ERP) is a challenging inverse problem, especially to resolve sources of neural activity occurring simultaneously. By using an effective dipole source model, we propose ... -
FIR filter design by iterative convex relaxations with rank refinement
(IEEE, 2014)Finite impulse response (FIR) filters have been a primary topic of digital signal processing since their inception. Although FIR filter design is an old problem, with the developments of fast convex solvers, convex modelling ... -
Image segmentation with unified region and boundary characteristics within recursive shortest spanning tree
(IEEE, 2007)The lack of boundary information in region based image segmentation algorithms resulted in many hybrid methods that integrate the complementary information sources of region and boundary, in order to increase the segmentation ... -
Novel solutions to classical signal processing problems in optimization framework
(Bilkent University, 2014)Novel approaches for three classical signal processing problems in optimization framework are proposed to provide further flexibility and performance improvement. In the first part, a new technique, which uses Hermite-Gaussian ... -
Phase-only beam synthesis by iterative semidefinite relaxations with rank refinement
(IEEE, 2013)In phased array antennas, by varying the complex element weights beam patterns with desired shapes can be synthesized and/or steered to desired directions. These complex weights can be implemented by using amplitude ... -
Sıkıştırılmış algılama tabanlı sayısal almaç: ilk performans ölçümleri
(IEEE, 2019-04)Bu çalışmada, ilk defa bir donanım üzerinde gerçeklenen SATSAÇ (Sıkıştırılmış Algılama Tabanlı Sayısal Almaç) sisteminin performansını tanımlayan duyarlılık, anlık dinamik alan ve bant genişligine dair ölçüm sonuçları ... -
Ultra-wideband orthogonal pulse shape set design by using Hermite-Gaussian functions
(IEEE, 2012)Ultra-Wideband (UWB) communication systems have been developed for short distance, high data rate communications. To avoid interfering with the existing systems in the same environment, very short duration pulses used by ...
