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Articles 421 - 427 of 427
Full-Text Articles in Electrical and Computer Engineering
Computing Moments Of A Binary Horizontally/Vertically Convex Image Using Run-Time Reconfiguration, Cheowway Neoh
Computing Moments Of A Binary Horizontally/Vertically Convex Image Using Run-Time Reconfiguration, Cheowway Neoh
LSU Master's Theses
In this thesis, we present a design for computing moments of a binary horizontally/vertically convex image on an FPGA chip, using run-time reconfiguration. We compute the moments of up to third order for a total of 16 moments. We address how run-time reconfiguration speeds up moment computations without taking up huge hardware resources. Since we are considering a binary horizontally/vertically convex image, we look at an alternative method in moment computations that utilizes constant coefficient multipliers. We divide the image into segments and process one segment at a time. We reconfigure the constant coefficient multipliers before processing the next segment. …
Wavelength Assignment In All-Optical Networks For Mesh Topologies, Prabhulaiah Bijja
Wavelength Assignment In All-Optical Networks For Mesh Topologies, Prabhulaiah Bijja
LSU Master's Theses
All-Optical Networks employing Dense Wavelength Division Multiplexing (DWDM) are believed to be the next generation networks that can meet the ever-increasing demand for bandwidth of the end users. This thesis presents some new heuristics for wavelength assignment and converter placement in mesh topologies. Our heuristics try to assign the wavelengths in an efficient manner that results in very low blocking probability. We propose novel static and dynamic assignment schemes that outperform the assignments reported in the literature even when converters are used. The proposed on-line scheme called "Round-Robin" assignment outperforms previously proposed strategies such as first-fit and random assignment schemes. …
Three-Dimensional Micromachined On-Chip Inductors For High Frequency Applications, Nimit Chomnawang
Three-Dimensional Micromachined On-Chip Inductors For High Frequency Applications, Nimit Chomnawang
LSU Doctoral Dissertations
Demands for wireless communication are ever-escalating for consumer and military communication applications. The requirements of portability, more functionality and lower cost have been driving forces toward smaller, more sophisticated and flexible wireless devices with lower power consumption. To meet these requirements, monolithically integrated passive inductors with high Q-factors and high self-resonant frequencies are desirable. Q-factor and self-resonant frequency of an inductor are significantly degraded at high frequencies due to conductor ohmic loss, magnetically induced eddy current in the conductive substrate, and lower self-resonant frequency from capacitance between conductive substrate and conductors.
In this dissertation, novel three-dimensional arch-like solenoid and dome-shaped …
Multiple-Access Interference Suppression In Cdma Wireless Systems, Jianqiang He
Multiple-Access Interference Suppression In Cdma Wireless Systems, Jianqiang He
LSU Master's Theses
This thesis presents techniques that suppress the multiple access interference (MAI) in CDMA wireless systems. MAI is the main factor that influences the communication quality and the capacity in CDMA wireless systems. Hence the suppression of MAI is essential to the performance of a CDMA wireless system. For conventional CDMA systems where matched filters are used as receivers, the only MAI suppression method available is the power control, which allocates each user in the system an appropriate transmitter power level such that the transmitter power is minimized to decrease the MAI, while at the same time each user maintains a …
Dynamic Scheduling, Allocation, And Compaction Scheme For Real-Time Tasks On Fpgas, Shobharani Tatineni
Dynamic Scheduling, Allocation, And Compaction Scheme For Real-Time Tasks On Fpgas, Shobharani Tatineni
LSU Master's Theses
Run-time reconfiguration (RTR) is a method of computing on reconfigurable logic, typically FPGAs, changing hardware configurations from phase to phase of a computation at run-time. Recent research has expanded from a focus on a single application at a time to encompass a view of the reconfigurable logic as a resource shared among multiple applications or users. In real-time system design, task deadlines play an important role. Real-time multi-tasking systems not only need to support sharing of the resources in space, but also need to guarantee execution of the tasks. At the operating system level, sharing logic gates, wires, and I/O …
Simulation Study And Instability Of Adaptive Control, Zhongshan Wu
Simulation Study And Instability Of Adaptive Control, Zhongshan Wu
LSU Master's Theses
The Minimum-degree Pole Placement algorithm for Self-tuning Regulator design and the Recursive Least-square method and the projection algorithm for plant estimation are studied first in this thesis. Simulation studies for the estimator and controller algorithms are mainly undertaken after describing how to use MATLAB S-function in detail. Not only do Simulation experiments illustrates how and how well the MDPP and RLS algorithms work, but also show how to write and debug MATLAB codes for S-function programs. The robustness of the adaptive control system is intensively discussed subsequently. By using an estimator resistant to the noise contamination, the adaptive control system …
Gate Transient Equations For Digital Bicmos Circuits, Beshara Elmufdi
Gate Transient Equations For Digital Bicmos Circuits, Beshara Elmufdi
Honors Capstones
No abstract provided.