M.S. Theses: Recent submissions

  • Vision correction for the visually impaired via digital image processing 
    Keleş, Onur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    In this study, an adjustment based on the mathematical modeling on digital screens for people with refractive visual impairments is proposed. According to the laws of refraction and diffraction, the human eye can be considered ...
  • Spectrum estimation using adaptive filters 
    Anarın, Emin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1983., 1983.)
    In this work, the adaptive discrete-time, linear nonrecursive filters (or estimators) designed by the Least Mean Square (LMS) algorithm are investigated. The developmeni of adaptive techniques for estimating the parameters ...
  • Sound source localization using MEMS digital microphone arrays 
    Aşıroğlu, Mustafa. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Technological developments around artificial intelligence in the last decade have led to a significant increase in applications of audio capturing and speech processing. To increase quality of sound recording and to obtain ...
  • Temperature insenitive ultra low power 0.7 V supply input and reference driver for 8 bit ADC in 65 nm CMOS technology 
    As, Berk. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    With CMOS technology scaling down, performance of ADCs has been improving in terms of area, low supply voltage and especially ultra-low power consumption. How ever, analog performance has not been advancing compared to ...
  • Embedded system implementation for real-time control of ankle foot orthosis 
    Bayraker, Melih. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Exoskeletons are widely used to restore and augment human movements, and the global smart exoskeleton market has been rapidly growing because of the need for efficient rehabilitative and assistive purposes. One of the most ...
  • Place learning with a human tracking mobile robot 
    İşcan, Serhat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    This thesis is concerned with human-guided spatial cognition. This is an im portant problem in human-robot interaction as it can yield human-like knowledge of places. It is a difficult problem as it requires the robot to ...
  • A multi - channel wireless respiratory and heart sounds acquisition and processing system 
    Çınar, Onur Yusuf. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Methods and diagnostic tools used in medical examinations of cardiac and res piratory diseases have not changed significantly since they have been invented. Aus cultation is an advantageous way for physical examination due ...
  • Detecting attacks on a VLC system 
    Romdhane, Imene. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Nowadays, the amount of Internet Protocol (IP) traffic in telecommunication systems is increasing tremendously and in a very fast pace, making the WiFi incapable of supporting such a huge amount of data transmitted with high ...
  • Novel error - control coding techniques for molecular communication 
    Kışlal, Ahmet Oğuz. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    In molecular communication via diffusion, information molecules diffusing in the environment are subject to Brownian motion. Due to probabilistic propagation, the arrival of molecules at the receiver is spread in time, leading ...
  • Improving system reliability of HF RFID reader and comparison between different antennas for tv applications 
    Türksever, Nuray. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Developments in Radio frequency identification (RFID) technology in the recent history, has increased significantly. With such developments and improvements RFID technology provides many advantages. RFID allows none-LOS and ...
  • Increasing robustness in appearance-based spatial cognition 
    Höke, Berkan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    This thesis is concerned with the robustness of robots’ spatial cognition. Two separateissuesareconsidered: Illuminationinvarianceandplacerecognition. Illumination invariance ensures that appearances of the same scene under ...
  • Model predictive control of diesel engine air path with actuator delays 
    Kekik, Betul. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    In recent years, emission regulations of the countries have been tightened with the increase in the number of cars. Nevertheless, reducing the emissions of diesel engines is a difficult technical issue. Since the Diesel ...
  • Automatic LMS equalizer algorithms with fast rate of convergence 
    Hekim, Nazan. (Thesis (M.S.) - Bogazici University. Institute of School of Engineering, 1982., 1982.)
    In high speed voiceband modems, as in many other data transmission systems, linear distortion and additive noise are important degrading factors. The tapped-delay-line equalizers designed to minimize the mean-square-error ...
  • Nano - structured triboelectric nano generators for internet - of - things (IOT) applications 
    Ünlü, Kemal. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    In this thesis, three different triboelectric energy harvesters were designed and manufactured. Polydimethylsiloxane (PDMS) was used as triboelectric surface in the first of these harvesters. In addition to untreated this ...
  • Airflow estimation from respiratory sounds 
    Yıldırım, İlhan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    The aim of this study is estimate the respiratory airflow and phases from the respiratory sounds recorded at the chest wall. In order to estimate the absolute airflow curve, time varying autoregressive (TVAR) model coefficients ...
  • Worm infection dynamics on a local area network 
    Doğan, Kübra. (Thesis (M.A.) - Bogazici University. Institute for Graduate Studies in the Social Sciences, 2018., 2018.)
    The aim of this thesis is to investigate the spreading behaviour of worms on a Local Area Network that is supervised by a central administrator who is authorized to enforce the updates on individual computers, but leaves ...
  • Amplified backscattering in RFID communications with energy harvesting tags 
    Ünalan, Denizhan. (Thesis (M.A.) - Bogazici University. Institute for Graduate Studies in the Social Sciences, 2018., 2018.)
    The main objective of this thesis is to investigate the backscatter modulation based radio-frequency identification (RFID) communication with energy harvesting tags. Thus, the study analyzes the impacts of energy harvesting ...
  • A modified relay - race approach to automated floorplanning in PCB and in design 
    Vatansever, Mert. (Thesis (M.A.) - Bogazici University. Institute for Graduate Studies in the Social Sciences, 2018., 2018.)
    Floorplanning is a fundamental design step in the physical design of IC and PCB, as it manages the complexity of circuit design, which is increasing with the pro gression in technology. Floorplanning optimizes the locations ...
  • CMOS oscillator design by using a metamaterial - based split ring resonator 
    Serttek, Özgün. (Thesis (M.A.) - Bogazici University. Institute for Graduate Studies in the Social Sciences, 2018., 2018.)
    High purity oscillators are of great importance in communication, radar, or med ical instrumentation systems. In today’s integrated circuit technology, low quality factor of inductors and capacitors define the limits of the ...
  • Using crosslingual information for keyword search in low resource languages 
    Yusuf, Bolaji. (Thesis (M.A.) - Bogazici University. Institute for Graduate Studies in the Social Sciences, 2018., 2018.)
    Keyword search (KWS) is a subtask of spoken content retrieval that aims to solve the problem of locating a written query within a large, unlabeled spoken doc ument. The dominant approach to KWS involves transcribing the ...

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