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Yayın tarihi için Elektrik- Elektronik Mühendisliği listeleme

Yayın tarihi için Elektrik- Elektronik Mühendisliği listeleme

Sırala: Sıra: Sonuçlar:

  • Conversion of current mode continuous time sigma delta converters from 1 bit to 3 bits 
    Akçakaya, Feyyaz Melih. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Sigma delta analog digital converters which are widely used in electronics are gradually achieving faster speeds and lower power consumption. The most important factor that affects speed and power consumption is the type ...
  • Object recognition in subspaces: applications in biometry and 3D model retrieval 
    Dutağacı, Helin. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Shape description is a crucial step in many computer vision applications. This thesis is an attempt to introduce various representations of two and three dimensional shape information. These representations are aimed to ...
  • Power aware switched capacitor integrator design 
    Korkmaz, Seyrani. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Switched Capacitors are used as resistors because they have better accuracy and they consume less die area than other resistor implementations in integrated circuits. In this technique, a capacitor is charged and discharged ...
  • A unified approach to speech enhancement and voice activity detection 
    Kasap, Ceyhan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    In this work, a unified system for voice activity detection (VAD) and speech enhancement is proposed. In the proposed system, there is mutual exchange of information between VAD and speech enhancement blocks. A new, robust ...
  • Sigma-delta dithering based frequency synthesis and modulation for DCS-1800 
    Atasoy, Oğuz. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Today cell phone industry tends to increase the capabilities of the cell phones and at the same time minimize the cost. This trend reflects itself to frequency synthesizer design. Hence, a cheap and efficient way of designing ...
  • Wheeze detection in respiratory sounds via statistical signal modeling 
    Aydöre, Sergül. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    The aim of this study is detection of wheeze and non-wheeze epochs within respiratory sound signals acquired from patients with asthma and COPD. Since a wheeze signal, having a sinusoidal waveform, has a different behavior ...
  • Communication theoretic analysis of digital fingerprinting under linear averaging Gaussian attack 
    Dalkılıç, Özgür. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    In this thesis, performance of correlation detector is investigated from a communication theoretic perspective for additive fingerprinting under Gaussian averaging attack. First, digital fingerprinting problem is modeled ...
  • A comparison of identification techniques for fractional order systems 
    Şenyuva, Rıfat Volkan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    This thesis compares the performances of various identification methods of deterministic and linear systems described by fractional order models. A detailed introduction to fractional calculus and fractional differential ...
  • Power optimization and modeling of switched-capacitor integrators suitable for delta-sigma modulators 
    Evci, Gökhan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    In this thesis, the power dissipation aspects of the Switched-Capacitor (SC) integrators used in Delta-Sigma ( ) modulators are treated. Delta-Sigma modulators which employ oversampling are one of the most critical types ...
  • Design of blocks for an ultra wireband transceiver 
    Akdağ, Evren. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    Ultra wideband (UWB) is one of the strongest technologies for short-range high data rate and longer range low data rate communications. Wireless personal area networks are one example of the first group while wireless ...
  • Analysis of FXLMS algorithm for active noise control 
    Aytaç, Erdem. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    With the increased number of industrial equipment and automation, acoustic noise problem become more and more evident, which has many negative effects on human health. This work is concerned with analysis of filtered - ...
  • Mobility tracking algorithms for cellular networks based on Kalman filtering 
    Yeşilyurt, Alper. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    This thesis is an in depth theoretical and practical survey of dynamic mobility tracking systems specifically for cellular networks. A user mobility state model that is originally proposed for tracking targets in tactical ...
  • Modelling of population dynamics in cell cultures 
    Aksu, Çiğdem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    In this thesis, two models at different resolution levels are developed for the population dynamics of animal cell cultures at the mitotic stage. The first model is a biologically plausible cellular automata-like micro-model ...
  • 0-30V / 5A digital power supply with computer control 
    Sünetci, Önder. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    Most of the electronic circuits require a DC power supply to operate. There are many designs and topologies covering different properties and specifications for DC power supplies. The voltage and current range and accuracy, ...
  • Automatic analysis of head and facial gestures in video streams 
    Akakın, Hatice Çınar. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    Automatic analysis of head gestures and facial expressions is a challenging research area and it has significant applications for intelligent human-computer interfaces. An important task is the automatic classification of ...
  • Circuit level analog design automation 
    Sönmez, Özsun Serkan. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    This thesis presents a simulation-based analog circuit synthesis methodology, its integration with system and layout level analog synthesis tools, and synthesis examples that were performed to validate the usefulness of ...
  • Low-voltage low-power design and implementation of current-mode circuits 
    Çakır, Cem. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    Low-voltage and low-power analog and digital circuits are needed to realize batteryoptimized, reliable and low-cost electronic devices for many applications. Example applications include remote environmental monitoring, ...
  • True random number generation via sampling from band-limited Gaussian processes 
    Gov, Necmettin Caner. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    A true random number generator topology based on regular sampling of an "irregular" process is considered, which is obtained via thresholding a continuoustime Gaussian (normal) process, of which spectrum is assumed to be ...
  • Analysis of an averaging based synchronization algorithm in continuous-time 
    Ersöz, Didem. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    Synchronization in distributed networks plays a significant role in a broad range of applications that consist of mobile and/or wireless nodes which need to agree on a common notion of time to successfully fulfill the tasks ...
  • A steady state analysis of competitive prediction using LMMN combination 
    Soysal, Betül. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    In this thesis, the adaptive linear prediction of autoregressive signals under additive Gaussian noise model is investigated in a competitive algorithm framework. In this framework, there is a comparison class of predictors ...