Now showing items 1-20 of 46

    • A Signal Processing Based Approach for Infant Cry Analysis and Classification 

      Chittora, Anshu (Dhirubhai Ambani Institute of Information and Communication Technology, 2016)
      The present work in this thesis is directed towards understanding the reason of crying of an infant using signal processing approaches. Infant cry analysis and classification is a non-invasive method of analyzing the infant ...
    • Adaptive channel estimation and loading for OFDM based two-way relay systems 

      Joy, Arun (Dhirubhai Ambani Institute of Information and Communication Technology, 2013)
      In this thesis we introduce a low complexity Recursive Least Square (RLS) based Orthogonal Frequency Division Multiplexing (OFDM) channel estimation for two-way relay system. Using the estimate of the channel, a bit and ...
    • Algebraic approach to Nash equilibria for finite normal form games 

      Gandhi, Ratnik (Dhirubhai Ambani Institute of Information and Communication Technology, 2011)
      In this work we consider methods for computing Nash equilibria of finite normal form games that emphasize use of polynomial algebra. Nash equilibria of a game can be characterized as solutions to a system of polynomial ...
    • Auditory Representation Learning 

      Sailor, Hardik B. (Dhirubhai Ambani Institute of Information and Communication Technology, 2018)
      Representation learning (RL) or feature learning has a huge impact in the field of signal processing applications. The goal of the RL approaches is to learn the meaningful representation directly from the data that can be ...
    • Bandwidth Considerations in Miniaturized Rectangular Dielectric Resonator Antennas: Experimental Validation 

      Durlabhji, Makwana Gautam (Dhirubhai Ambani Institute of Information and Communication Technology, 2016)
      In this thesis, an issue of bandwidth is considered in a rectangular dielectric resonator antenna (RDRA). Two techniques (merging of modes and stacking) of bandwidth im- provement are introduced with miniaturized resonator. ...
    • Between Insularity and Cosmopolitanism: a Study on the relation between Urban Space and Urban Identity in Modern Baroda 

      Desai, Nikita (Dhirubhai Ambani Institute of Information and Communication Technology, 2018)
      Located in the State of Gujarat, the city of Baroda or Vadodara is described a Sanskarnagri, the state's cultural capital and a cosmopolitan urban space. This thesis challenges this image of Vadodara and its current city ...
    • Broadband microstrip antennas with switchable polarizations 

      Bombale, Uttam Laxmanrao (Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
      Microstrip antenna consists of a patch of metallization on grounded substrate. These are low profile, lightweight antennas, most suitable for aerospace and mobile application. They are replacing many conventional antennas ...
    • Channel estimation and soft OSIC detection in coherent MIMO-OFDM systems using QRD techniques(802.16m) 

      Rawal, Divyang (Dhirubhai Ambani Institute of Information and Communication Technology, 2013)
      Next generation mobile systems will use multiple antennas at the transmitter and receiver to achieve higher capacity and diversity gain at high speeds. By transmitting through multiple transmitting and receiving antennas, ...
    • CLAPDAWN: cross layer architecture for protocol design in a wireless network 

      Jardosh, Sunil (Dhirubhai Ambani Institute of Information and Communication Technology, 2011)
      Architecture plays a key role in overall success of the network protocol stack. It is essential to have robust architecture for the complex system having multiple cross protocol interactions. In the literature more emphasis ...
    • Coordinated adaptive power management (CAPM) technique for sensor network nodes 

      Joshi, Gauri Hiren (Dhirubhai Ambani Institute of Information and Communication Technology, 2013)
      Small size of wireless sensor nodes limit the size of the battery supported on it which directly limits the capacity of the battery and lifetime of the sensor nodes. Though energy scavenging is one of the solutions, it is ...
    • Dense Disparity Estimation using Stereo Images 

      Nahar, Sonam (Dhirubhai Ambani Institute of Information and Communication Technology, 2017)
      "“Stereo vision” refers to the ability to infer information on the three-dimensional (3D) structure and distance/depth of a scene using two images captured from different view-points. It imitates one of the tasks performed ...
    • Design and Analysis of Distortion Reduction Techniques in Direct Conversion Receiver 

      Shah, Milind S. (Dhirubhai Ambani Institute of Information and Communication Technology, 2017)
      Direct-conversion is alternative wireless receiver architecture to the well-established super heterodyne architecture. Direct-conversion receiver (DCR) can offer highly integrated, low-power and low-cost hardware Solutions ...
    • Design and analysis of multiband fractal antenna 

      Dhoot, Vivek (Dhirubhai Ambani Institute of Information and Communication Technology, 2015)
      Miniaturized Multiband antenna design is an important and challenging task for communication industry. Several constraints like size, position of the antenna, feasibility, reflection coefficient, Specific absorption Rate ...
    • Design and analysis of novel receiver front-end sub-systems in ku-band for satellite applications 

      Patel, Sanket S. (Dhirubhai Ambani Institute of Information and Communication Technology, 2014)
      A novel receiver front-end; Low Noise Amplifier (LNA), mixer and Local Oscillator (LO); is designed and analyzed in Ku-band. Different design aspects of the subsystems along with the trade-offs and improvements are presented. ...
    • Design and Analysis of Schemes for Privacy Preserving Cloud Storage Services 

      Chaudhari, Payal (Dhirubhai Ambani Institute of Information and Communication Technology, 2018)
      Public cloud storage services have become the leading choice for individuals and organizations to store their data, as the service provides the benefits of availability and reliability together at a reduced cost. While ...
    • Design automation of analog to digital converters based on geometric programming 

      Purushothaman, A. (Dhirubhai Ambani Institute of Information and Communication Technology, 2012)
      The trend towards digital processing of analog signals in an increasing number of application fields has stimulated significant research efforts in the area of data converters implemented in CMOS technologies. Designing ...
    • Design of countermeasures for spoofed speech detection system 

      Patel, Tanvina (Dhirubhai Ambani Institute of Information and Communication Technology, 2017)
      Automatic Speaker Verification (ASV) systems are vulnerable to speech synthesisand voice conversion techniques due to spoofing attacks.Recently, to encourage thedevelopment of anti-spoofing measures or countermeasures for ...
    • Design of QbE-STD System: Audio Representation and Matching Perspective 

      Madhavi, Maulik C. (Dhirubhai Ambani Institute of Information and Communication Technology, 2017)
      The retrieval of the spoken document and detecting the query (keyword) within the audio document have attained huge research interest. The problem of retrieving audio documents and detecting the query (keyword) using a ...
    • Detection oftTampering in digital images using feature based hash generation 

      Mall, Vinod Kumar (Dhirubhai Ambani Institute of Information and Communication Technology, 2014)
      Recent years have witnessed an exponential growth in the use of digital images due to development of high quality digital cameras and multimedia technology. Easy availability of user-friendly image editing software has ...
    • Developing a framework of agriculture knowledge management process in Indian context 

      Vangala, Ram Naresh Kumar (Dhirubhai Ambani Institute of Information and Communication Technology, 2017)
      In the current economy of global competition, many organizations are using knowledge as one of the means to gain sustainable competitive advantage. Knowledge is becoming a critical success factor for organizational ...