M.S. Theses: Recent submissions

  • Effects of reverberation on monaural speech separation and recognition 
    Kurçenli, Hakan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Speech recognition is an active area of research with implementations spanning from commercial to medical applications such as hearing aids. Recognition of speech signals is studied for decades and a lot of progress has ...
  • Hardware and software development for robocup SSL robots 
    Esen, Huzeyfe. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    In Small Size League (SSL) which is one of the most dynamic and fastest competitions of RoboCup, a soccer game is played between two autonomous teams of 6 robots on a field of size 6050 mm 4050 mm. Because of this ...
  • 10-BIT 60 MS/s two-step flash ADC design 
    Esen, Vahap Barış. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Two step flash ADCs have widespread use in electronic circuits, since they can achieve decent resolutions in high speed applications. Their two step structure requires coordination of many analog blocks that is ensured by ...
  • Probabilistic time series classification 
    Sübakan, Yusuf Cem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    In this thesis, we investigate probabilistic methods for time series classification and clustering problems. For various classification and clustering tasks, we survey different time series models such as Markov models, ...
  • Speed control of induction motors by power transistors 
    Çardak, Necdet. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1981., 1981.)
    In this thesis, the speed control of a 3-phase induction motor by electronic circuitry is investigated and compared with alternative methods used in industry. The design of the control unit to synthesise a 3-phase stepped ...
  • RSSI based position estimation in ZigBee sensor networks 
    İleri, Fatih. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Localization in wireless sensor networks is getting more and more important in the recent years, since many applications need to locate the source of incoming measurements as precise as possible. Channel propagation and ...
  • Fast circuit topologies for finding the maximum of n k-bit numbers 
    Yüce, Bilgiday. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Finding the value and/or address (position) of the maximum (or similarly minimum) element of a set of binary numbers is a fundamental arithmetic operation. Numerous systems, which are used in various application areas, ...
  • An electromagnetic MEMS-based resonator design for catheter tracking in MRI 
    Çakacı, Ahmet Uraz. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Using Magnetic Resonance Imaging (MRI) in minimally invasive medical procedures has many advantages, such as the elimination of ionizing radiation and increased soft tissue contrast. However, the lack of MRI-compatible ...
  • Demand response and supply optimization in smart grids with renewable energy sources 
    Çiçek, Nihan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Smart grid is an electrical grid that uses information and communications technology to improve e ciency, reliability, economics, and sustainability of production and distribution of electricity. In this thesis, we study ...
  • Distributed spectrum sensing via energy detection in cognitive radios 
    Altay, Can. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Energy Detection is widely studied spectrum sensing system to detect signal energy due to its simplicity and lack of requirement signal characteristics. This thesis focuses on two main problems on distributed detection of ...
  • Sensor applications of polymer field effect transistors 
    Terkeşli, İsmail. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    This thesis presents the fabrication and characterization of organic field effect transistors (OFETs) for sensor applications using polymeric semiconductor of poly (3- hexyl thiophene)(P3HT). Utilizing deionized (DI) water ...
  • Fabrication and characterization of liquid electrolyte gated polymer field effect transistor for basic circuit applications 
    Yaman, Berkan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    In this thesis, a simple polymer field effect transistor structure is designed and fabricated. To decrease the operating voltage of the transistor, electrolyte solutions are used as gate material. Using electrolyte at the ...
  • Generator matrix selection for finite-length polar codes 
    Şerbetci, Berksan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Polar coding is a recently proposed coding technique, which has been proven to achieve the channel capacity. The original 2 x 2 generator matrix polarizes the channels and a portion of channels' capacity approach 1, while ...
  • Automatic Sigma-Delta Analog to Digital Converter architecture generator 
    Gök, Ali Murat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Sigma-delta A/D converters constitute a popular method of A/D conversion since they can achieve higher resolution with simpler analog circuitry. Using feedback and feedforward paths, their performance can be increased even ...
  • Digital DC motor speed control with phase locked loop regulation 
    Bodur, Fazıl Nihat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1981., 1981.)
    The object of the thesis is to study the speed control of direct current motor by using phase locked loop principle and compare alternative methods applied in practice. The operation of phase locked servo systems is described ...
  • New approaches to optimization algorithms used in circuit and system level of analog design automation 
    Ay, Simge. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    This thesis presents different simulation-based analog circuit synthesis methodologies, and synthesis examples that were performed to validate the usefulness of the methodologies. It also presents the integration of circuit ...
  • Spatially-coupled LDCP coding for the correlated erasure channel 
    Ashrafi, Mahmood Reza Alizadeh. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    In this thesis, spatially-coupled low density parity-check (LDPC) codes, which have been shown to exhibit the threshold saturation phenomenon over the binary erasure channel (BEC), are considered and a low-delay iterative ...
  • BIT manipulation attack to ultralightweight RFID protocols 
    Ünsal, Cihan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Radio frequency identification (RFID) enables identification of objects that are labeled with small tags in a wide variety of environments without needing a physical contact and a line-of-sight. A typical RFID system ...
  • Spectrum aware self-organizing networking in OFDMA / LTE heterogeneous networks 
    Karaman, Melih Ahmet. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Emerging information technologies provide a large number of services which require high throughput for the users. In order to supply the data rate needed by the consumer, the evolving ecosystem of mobile technologies have ...
  • Split ring resonator and metamaterials at microwave regime, numerical analysis, design, characterization 
    Sadeghzadeh, Seyedehayda. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Recently, there has been a significant interest in Terahertz (THz) technology, primarily for its potential applications in detection of concealed objects as well as in medical imaging for non-invasive diagnostics. THz ...

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