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Now showing items 191-200 of 209
Identifying the protein coding regions in DNA using IIR antinotch filter
(Dhirubhai Ambani Institute of Information and Communication Technology, 2007)
Genomic Signal Processing is an emerging interdisciplinary area. The problem of Identifying Protein Coding Regions in DNA is addressed using signal processing techniques in this work. DNA can be thought of a string formed ...
Symbol detection in MIMO systems
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Multiple input multiple output symbol detection methods are observed under frequency flat fading AWGN channel condition. The modulation method employed is Quadrature amplitude modulation (QAM). The various symbol detection ...
Model based channel shortening technique for IEEE 802.11a OFDM system
(Dhirubhai Ambani Institute of Information and Communication Technology, 2007)
Channel shortening tehniques for IEEE802.11a OFDM system are studied. Their performance is evaluated for various standard channel models. A model based channel shortening technique is presented, which reduces the computational ...
Nonuniform sampling and its reconstruction methodologies
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Alias-free DSP (DASP) is a methodology of processing signals digitally inside bandwidth that are wider than the famous nyquist limit of half of the sampling frequency. This topic has benefited from a strong research revival ...
Multirate signal processing in digital communications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Fundamentals of multirate signal processing and perfect reconstruction filter banks are revisited. An attempt is made to develop a good understanding of concepts by connecting the filter bank design issues to the concepts ...
Design of low voltage high performance voltage controlled oscillator
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
In this thesis an ultra low voltage differential capacitive feedback VCO is being proposed .The VCO operates at very low supply voltage of 0.6V.The VCO uses techniques like Forward Body Bias (FBB), and capacitive feedback ...
1.5V, 2.4GHz highly linear CMOS downconversion mixer
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
In the tremendous growth of wireless handheld devices, low power consumption becomes a major consideration in radio frequency integrated circuit (RFIC) designs. This thesis explores low voltage low power RFIC design for ...
Object classification in images using information slicing
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Human visual system, in real world, identifies objects by their shapes, sizes and colors. More than often we identify objects around us specifically by using contextual knowledge of the objects. For example, an area of ...
Designing of an efficient power clock generation circuit for complementary pass-transistor adiabatic logic carry save multiplier
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
This thesis presents a novel four-phase power clock generator for low power adiabatic logic without using inductors. The power clock generator is designed using current mirror arrangement of PMOS and NMOS transistors. ...
Multi band fractal antenna for satellite application
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Fractal Antenna is the current topic for the research engineering because Fractal Technology allow us to design miniature antennas and integrate multiple band in single device. This antenna is a type of Micro strip antenna ...