Browsing Dept. of Electrical and Electronics Engineering - Ph.D. / Sc.D. by Title
Now showing items 15-34 of 142
-
Calculation of scalar optical diffraction field from its distributed samples over the space
(Bilkent University, 2010)As a three-dimensional viewing technique, holography provides successful threedimensional perceptions. The technique is based on duplication of the information carrying optical waves which come from an object. Therefore, ... -
Circuit theoretical methods for efficient solution of finite element structural mechanics problems
(Bilkent University, 1999)Shrinking device dimensions in integrated circuit technology made integrated circuits with millions of components a reality. As a result of this advance, electrical circuit simulators that can handle very large number ... -
Circuit theory based modeling and analysis of CMUT arrays
(Bilkent University, 2013)Many ultrasonic technology applications require capacitive micromachined ultrasonic transducers (CMUTs) to be used in the form of large arrays to attain better performance in terms of powerful, broadband and beam-formed ... -
Code design for interference channels
(Bilkent University, 2019-11)As the number of wireless devices dramatically increases, they experience more interference in their communications. As a result, managing interference in wireless networks is an important challenge in future wireless ... -
Coding schemes for energy harvesting and multi-user communications
(Bilkent University, 2017-12)Many wireless communication and networking applications can bene t from energy harvesting and wireless energy transfer including wireless sensor networks, radio frequency identi cation systems and wireless body networks. ... -
Colloidal optoelectronics of self-assembled quantum well superstructures
(Bilkent University, 2020-07)Advances in the colloidal nanocrystal synthesis enabled creation of quasi twodimensional colloidal quantum wells (CQWs) in the last decade. These CQWs possess similar properties to those of epitaxially grown quantum wells ... -
Colloidal photonics of semiconductor nanocrystals: from polarized color conversion to efficient solar concentration
(Bilkent University, 2018-07)Effective photon management is pivotal to the success of future photonic applications. The demand for high-performance electronic displays and solar light harvesters has been increasingly growing, ever with high expectations ... -
Compact Ka-band filter applications based on the multiple mode rectangular cavity
(Bilkent University, 2017-06)Filters based on multiple mode cavity resonator technique have the advantage of realizing a given filter function in a reduced volume and weight with the drawback of increased complexity. In order to decrease the dependence ... -
A comparative analysis of different approaches to target differentiation and localization using infrared sensors
(Bilkent University, 2006)This study compares the performances of various techniques for the differentiation and localization of commonly encountered features in indoor environments, such as planes, corners, edges, and cylinders, possibly with ... -
A comparison of different approaches to target differentiation with sonar
(Bilkent University, 2001)This study compares the performances of di erent classication schemes and fusion techniques for target di erentiation and localization of commonly encountered features in indoor robot environments using sonar sensing Di ... -
Computation of surface fields excited on arbitrary smooth convex surfaces with an impedance boundary condition
(Bilkent University, 2012)Due to an increase in the use of conformal antennas in military and commercial applications, the study of surface fields excited by a current distribution on material coated perfect electric conductor (PEC) surfaces is ... -
Computer aided diagnosis in radiology
(Bilkent University, 1999)Breast cancer is one of the most deadly diseases for middle-aged women. In this thesis, computer-aided diagnosis tools are developed for the detection of breast cancer on mammograms. These tools include a detection scheme ... -
Computer vision based behavior analysis
(Bilkent University, 2009)In this thesis, recognition and understanding of behavior based on visual inputs and automated decision schemes are investigated. Behavior analysis is carried out on a wide scope ranging from animal behavior to human ... -
Contextual multi-armed bandits with structured payoffs
(Bilkent University, 2020-09)Multi-Armed Bandit (MAB) problems model sequential decision making under uncertainty. In traditional MAB, the learner selects an arm in each round, and then, observes a random reward from the arm’s unknown reward ... -
Decentralized blocking zeros in the control of large scale systems
(Bilkent University, 1992)lu lliis lliesi.s, a luuiiber ot syiithe.sis problems i'or linear. ninc-invariauL, iiiiite-cliuieiiSioiial sysiems are adclres.se(l. It i.s sliown that tlie lu'w concejU of (l·.': m inili zed blocking zeros \s as ... -
Deep collapse mode capacitive micromachined ultrasonic transducers
(Bilkent University, 2010)Capacitive micromachined ultrasonic transducers (CMUTs) are suspended microelectromechanical membrane structures with a moving top electrode and a rigid substrate electrode. The membrane is actuated by electrical signals ... -
Design and applications of A Z-gradient array in magnetic resonance imaging
(Bilkent University, 2019-01)Array of gradient coils driven by independent power amplifiers can generate gradient fields with dynamically changing gradient field profiles. Nine channel prototype z-gradient coil array with a diameter of 25 cm is ... -
Design and implementation of a wireless passive sensing system for structural health monitoring
(Bilkent University, 2016-06)Structural health monitoring (SHM) aims to ensure detection and prevention of damage in structures and protection of human life via observation of certain damage indicators. In SHM, one of the most important damage indicators ... -
Development of new array signal processing techniques using swarm intelligence
(Bilkent University, 2010)In this thesis, novel array signal processing techniques are proposed for identifi- cation of multipath communication channels based on cross ambiguity function (CAF) calculation, swarm intelligence and compressed sensing ... -
Digital beamforming techniques and VLSI circuits for medical ultrasound imaging
(Bilkent University, 1992)For phased array medical ultrasound imaging, digital beamforming techniques and VLSI circuits are studied to form a fully digital receive front-end hardware. To increase the timing accuracy in beamforming, a computationally ...
