Browsing M Tech Dissertations by Issue Date
Now showing items 81-100 of 820
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A 0.18µ low power dual-mode transceiver front-end design for high speed bluetooth systems
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)Today’s market trend is to possess a single multi-purpose, multi-functional personal device for various wireless personal area network (WPAN) applications. So it raises a great demand to develop multi-mode/multi-standard ... -
Built-in self-test for a flash analog to digital converter
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)The intricacies of modern System on Chips (SoCs), comprising of analog, digital and even Redio-Frequency (RF) blocks on a single chip, are surpassing all previous conceivable limits. A more perplexing problem now is not ... -
Comparison of single-bit and multi-bit second order sigma-delta modulators
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)This work deals with comparison of Single-bit and Multi-bit Second Order Sigma-Delta Modulators at system level for various performance metrics and different circuit nonidealities. For this work of comparison, Boser-Wooley ... -
Design and synthesis of asynchronous circuits
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)For a very long time, there has been a requirement of circuits that can overcome the difficulties caused by the delay assumptions involved in a physical system. With decreasing on-chip dimensions of circuits as a result ... -
Design of a low power high slew rate OPAMP and to study its impact on sigma delta modulator's performance
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)This thesis presents the work done on the design of a low-power, high slew rate opamp and subsequently the design of a fully-differential second order Switched-Capacitor architecture of a Sigma Delta modulator in 1.8 V, ... -
Distributed caching mechanism for video on demand on the Internet
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)Video on Demand applications in the Internet are delay sensitive and highly resource intensive applications. Such applications require streaming of large video files in a time bound manner. Because large volume in terms ... -
Low power BIST architecture for fast multiplier embedded core
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)A typical core is deeply embedded in the chip of a system so that direct access to its input/output is not possible. Built in self test (BIST) structures are excellent solutions for testing embedded cores. In this work, ... -
Low power high speed amplifier design
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)The operational amplifier (op-amp) is one of the important component in analog to digital converters. The power consumption of these converters mostly depend on the op-amps used. The accuracy and speed performance of analog ... -
Performance evaluation of differentiated services over MPLS
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)There is a compelling need to provide Quality of Service (QoS) within Internet with the introduction of multimedia applications, video conferencing etc. These applications demand high resource guarantees and timeliness of ... -
Receiver amplifier design using CMOS current feedback amplifier and current conveyors
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)In the world of high-speed communications, systems involving high-speed data transfer require circuits with innovative features for good performance in terms of speed and power consumption. These data transfer systems ... -
Study of face recognition systems
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)Face Recognition comes under the general area of object recognition and has attracted researchers in the pattern recognition community for the past thirty years. The significance of this area has grown rapidly largely for ... -
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 ... -
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 ... -
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 ... -
Reconfigurable application specific instruction set processor for kalman filter (R-ASIK)
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)Kalman filter is one of the most important signal processing algorithms used in many tracking applications. The main challenges for hardware implementation of Kalman filter include compute intensiveness O (n3) of the ... -
Content-based image retrieval system for multi-object images using a combination of features
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)Content-based image retrieval (CBIR) is a research area dedicated to address the retrieval of images based on automatically derived features from the content of the images in database. Traditional CBIR systems generally ... -
Two-level pricing scheme for congestion control and service differentiation in the Internet
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)It is the property of any good service provider that, if a user is ready to pay for the services he demands, the provider will ensure that the requested level of service is made available. Is this possible in the Internet? ... -
Music genre classification using principal component analysis and auto associative neural network
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)The aim of music genre classification is to classify music pieces according to their style. Principal Component Analysis (PCA) is applied on raw music signals to capture the major components for each genre. As a large ... -
Modeling ad hoc network as queuing network
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)Ad hoc networks are networks in which there is no fixed infrastructure. The mobile nodes are independent and have distributed control. Modeling of Ad hoc network is a critical task, because it includes modeling of mobile ...