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Design of architecture of artificial neural network : design and construction of a model for creation of an architecture of artificial neural network based on distributed genetic algorithms
(Dhirubhai Ambani Institute of Information and Communication Technology, 2004)
The objective of the work is to design and construct a model for creation of architecture of feed forward artificial neural network. The distributed genetic algorithms are used to design and construct the system. This ...
Hybrid approach to speech recognition in multi-speaker environment
(Dhirubhai Ambani Institute of Information and Communication Technology, 2004)
Recognition of voice, in a multi-speaker environment involves speech separation, speech feature extraction and speech feature matching. Traditionally, Vector Quantization is one of the algorithms used for speaker recognition. ...
Design and implementation of a framework for context aware mobile services
(Dhirubhai Ambani Institute of Information and Communication Technology, 2004)
Applications designed for mobile platforms are traditionally hampered by the limita¬tions of the client devices, in particular limited user interface and the change of user environment due to mobility. Incorporating location ...
Efficient scan-based BIST scheme for low heat dissipation and reduced test application time
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)
Switching activity during test application can be significantly higher than that during normal circuit operation in many circuits. This is due to the fact that the correlation between consecutive test vectors is significantly ...
Acoustic source localization using audio and video sensors
(Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
Problem of localizing an acoustic source using microphone array and video camera is studied. In general, it’s quite obvious that a human with both, eyes and ears can make out things more accurately than to a human who is ...
hybrid approach to digital image watermarking using informed coding, informed embedding and spread spectrum
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)
The growth and popularity of the Internet has led to the data storage of multimedia data (audio, image and video) in digital form. The digitization form of multimedia data can be copied easily and then distributed again ...
Design of laser driver circuit
(Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
Designing an Optoelectronic Integrated Circuit (OEIC) is an attractive field of research as it bridges the interface between electrical and optical components. The design of laser driver in optical transmitter is very ...
Enhancing data efficiency in OFDM (IEEE 802.11a) using equalization (11A)
(Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
IEEE 802.11a OFDM signal passed through a dispersive channel introduces ISI & ICI. To avoid ISI & ICI, cyclic prefix (guard interval) is introduced between the OFDM symbols. But the cyclic prefix contributes about 20% ...
Gaussian mixture models for spoken language identification
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)
Language Identification (LID) is the problem of identifying the language of any spoken utterance irrespective of the topic, speaker or the duration of the speech. Although A very huge amount of work has been done for ...
Passive direction of arrival (DOA) tracking
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)
The work reported in this thesis is concerned with the Passive Direction Of Arrival (DOA) tracking problem. Traditionally model based approach is used to solve tracking problems. The measurements (DOA) are nonlinearly ...