Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 32 for “"Circuit complexity"”.
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Algebraic methods in pseudorandomness and circuit complexity
… this to provide new partial results towards a circuit lower bound for this problem. Finally, we answer a question posed in [MR15] concerning VC dimension, interpolation degree and the Hilbert function.
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A study of circuit Complexity for Coherent States
Computational complexity is a popular quantity in quantum information theory. It has made huge strides in recent years in the study of black hole dynamics. A brief definition of complexity is the measure of how difficult it is to implement a task. For a quantum system, complexity evaluates the …
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Area and Power Conscious Rake Receiver Design for Third Generation WCDMA Systems
… our design process to reduce the overall circuit complexity by trading with the performance. The reduction of the circuit complexity results in low power dissipation for our rake receiver. As the first step in the design of a rake receiver, we generated a software prototype in MATLAB. The …
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VLSI REALIZATION OF AHPL DESCRIPTION AS SLA, PPLA, & ULA AND THEIR COMPARISONS (CAD).
Reducing circuit complexity to minimize design turnaround time and maximize chip area utilization is the most evident problem in dealing with VLSI layout. Three suggestions have been recommended to reduce circuit complexity. They are using regular modules as design targets, using hierarchical …
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An Investigation of Photovoltaic Power Optimization
… These techniques exhibit dramatic reductions in circuit complexity and power dissipation compared to traditional pure sine-wave inverters. However, designing multilevel DC-to-AC inverter-less systems with maximum efficiency and reduced circuit complexity is challenging. This project has produced …
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Aspects of amplitudes, gravity & complexity
… theories and entanglement entropy & complexity in quantum field theory. In part one, we utilise modern scattering amplitude techniques to efficiently calculate the deflection angle of both light and gravity due to the presence of a massive body. We find this to be in complete …
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A zero-crossing based pipelined analog-to-digital converter with supply voltage scalibility
… and high resolution. Using switched capacitor circuit, two phase charge transfer scheme is implemented without increasing power and circuit complexity.
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Improvements in Inductively Coupled Wireless Power Transfer Through Non-Sinusoidal Excitation and Closed-Loop Operation Using Optical Feedback
In this research, two novel designs with low circuit complexity are proposed to improve the performance in inductively coupled wireless power transfer (WPT) systems. The first is non sinusoidal excitation technique. By analysing the characteristics of rectifier diodes, LR time constant, and circuit …
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A study on complexity
This thesis explores quantum complexity for various quantum systems. Quantum complexity is a well defined quantity in quantum information theory that measures the difficulty of constructing a quantum state from a given reference state and so far, various methods within high energy physics …
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Optically Controlled Vertical GaN finFET for Power Applications
… devices often require complicated gate-driving circuits and are susceptible to electromagnetic interference (EMI). Optically triggered power devices can significantly improve circuit complexity, EMI susceptibility, and system reliability. This thesis presents the first demonstration of an …
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Communications in the observation limited regime
… signal energy, rather than amplitude, lowers circuit complexity and power dissipation significantly, but makes synchronization harder. We show that while the distance function of this non-linear coding problem is intractable in general, it is Euclidean at vanishing SNRs, and root Euclidean at …
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Dynamic Element Matching Techniques For Delta-Sigma ADCs With Large Internal Quantizers
… in the power dissipation, required area and complexity of the dynamic element matching (DEM) circuit required to attenuate digital-to-analog converter (DAC) mismatch errors. One way to overcome these drawbacks is to segment the feedback signal, creating a "coarse" signal and a "fine" signal. …
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GaN electronics for high-temperature applications
… the application point of view by reducing the circuit complexity and cost. At the same time, the two-dimensional electron gas induced by AlGaN/GaN heterostructures makes HEMTs be naturally depletion-mode devices. This thesis aims to demonstrate devices capable of high-temperature operation …
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Uniformity conditions for membrane systems Uncovering complexity below P
We characterise the computational complexity of biological systems to assess their utility as novel models of computation and learn how efficiently we can simulate these systems in software. In this work we focus on the complexity of biological cells by using several established models of cell …
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Complexity And Entanglement In Quantum Gravity
… three-manifolds. We then analyze the quantum circuit complexity of the time evolution operator in the Sachdev-Ye-Kitaev model, a theory of near-extremal black hole microstates. We find that this complexity grows linearly for a time exponential in the entropy, modulo a caveat concerning global …
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Genetic and Computational Tools for Engineering Complex Prokaryotic Systems
… promising platforms for bioproduction, but the complexity of their gene regulatory and metabolic networks presents significant challenges for engineering efficient biosynthetic pathways. While CRISPR-Cas technologies have revolutionized genome editing in eukaryotes, the development of …
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An investigation into non-linear propagation of MSK with a view to specifying an adaptive equalizer
… based on criteria such as construction cost, circuit complexity, and performance improvement. It is known from ray model analysis that at a transmitting frequency of 23 GHz deep fading will only occur on links longer than 5.24 kms. However even on hops of length 5 km' s the fade time is-in the …
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A low cost tellurometer
… has been accompanied by increased costs and complexity. There is a growing need in underdeveloped countries for a simple low-cost microwave Tellurometer with good performance and maintainability. These countries survey with low budgets and cannot afford expensive equipment and do not …
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Wide-Dynamic-Range Continuous-Time Delta-Sigma A/D Converter for Low-Power Energy Scavenging Applications
… with the above approach is power and circuit complexity. </p><p>We propose to use the unique properties of current-input continuous-time Delta-Sigma A/D converters to combine the photo-detector current-integration with simultaneous wide-dynamic-range A/D conversion, using programmable …
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Reconfigurable and Interference-Tolerant Receivers for Next Generation Wireless Systems
… receiver architectures, these switched-capacitor circuits remain inherently vulnerable to blockers at clock harmonics, due to their hard-switching nature. These blockers, common in 5G bands, pose a key bottleneck, delaying the realization of fully integrated multi-band, multi-mode radios. This …
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