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Now showing items 21-30 of 48
Practical Evaluation and Analysis Of Passive UHF RFID Tags
(Electrical Engineering, 2008-08-08)
In this thesis, we have identified the important parameters that impact the performance of passive UHF RFID tags and developed a testing methodology to evaluate and characterize tags. We have also developed the theory to ...
Improving the Bit Error Rate Performance Of GSM System Using A Independent Component Analysis based Non-linear Filter
(Electrical Engineering, 2008-08-08)
Presently, call drop out is considered a major problem in wireless communication. A large percentage of call drops take place due to network congestion, handover failure and high bit error rate.Our main objective is to ...
Simulation Analysis Of Orthogonal Frequency Division Multiplexing Systems With Diversity Reception
(Electrical Engineering, 2008-08-08)
With the rapid increase in the utility of voice and data services,
there is a demand for higher data rates and reliability in wireless
communications. A wireless communication channel is prone to
degrading effects such ...
Investigation Of Power System Blackouts And Reliability Improvement For Power Distribution Systems
(Electrical Engineering, 2008-04-22)
Modern power systems often consist of thousands of equipments, each of which
may have an affect on the security of the system. The trend toward deregulation has
forced utilities to operate their systems closer to security ...
Performance Analysis And Effect Of Multi-user Interference For Ultra Wideband Communications
(Electrical Engineering, 2008-09-17)
Ultra-Wideband (UWB) is an upcoming technology for short-range high data rate applications like Wireless Personal Area Networks or medium/long-range low data rate applications like sensor networks. UWB has many captivating ...
Simultaneous Robot Localization And Mapping Of Parameterized Spatio-temporal Fields Using Multi-scale Adaptive Sampling
(Electrical Engineering, 2008-08-08)
This dissertation presents a Multi-scale Adaptive Sampling (AS) framework for combining measurements arriving from mobile robotic sensors of different scales, rates and accuracies, in order to reconstruct a parametric ...
Voltage Profile Estimation And Reactive Power Control Of Distribution Feeders
(Electrical Engineering, 2008-08-08)
Distribution systems are important transportation links for the delivery of electric power. Understanding the system conditions of distribution feeders is vital for controlling power systems and maintaining electricity ...
Fast Algorithms For MDCT And Low Delay Filterbanks Used In Audio Coding
(Electrical Engineering, 2008-08-08)
Modern audio and speech coding systems use filterbank and transform coding
techniques to decorrelate the input signal. Cosine-modulated, perfect reconstruction,
pseudo-QMF filterbanks are most commonly used for this ...
A Potential Field Approach For Distributed Control Of Discrete Actuator And Sensor Arrays
(Electrical Engineering, 2008-04-22)
This dissertation presents new methods of distributed sensing, classification and actuation using potential field and neural network approaches. Human look-a-like robot serves as an excellent tool to implement the strategies ...
Image Mirroring, Rotation And Interpolation In The Wavelet Domain
(Electrical Engineering, 2008-09-17)
JPEG2000, the international standard for still image compression, uses the wavelet transform. The filters used in JPEG2000 for transformation are the 9/7 Daubechies filters and the 5/3 Le Gall filters. At present, to achieve ...