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.
Results
Showing 1 to 20 of 23 for “"1-bit"”.
-
Custom High-Speed ADC for mmWave Digital Beamformers
… idea of using a reconfigurable, oversampled 1-bit converter to achieve a high signal bandwidth and lower power consumption for future use in mm-Wave 5G radios or phased array systems. The following sections introduces the design process and architecture of a multi-stage Delta-Sigma ADC using a …
-
Oversampled pipline A/D converters with mismatch shaping
… shaping can be realized in traditional 1-bit-per-stage pipeline ADCs, but suffers from some fundamental limitations, which limit its effectiveness at pushing the distortion out of band. These limitations can be alleviated by using a 1 bit/stage commutative feedback capacitor switching …
-
A Study of the Readability of On-Screen Type
… in the experiment. Since it was found that 8-bit on-screen text was not significanly more readable than 600dpi text on paper, and 1-bit onscreen text was found to be significantly less readable than onscreen text and 600dpi text on paper, this research concludes that for purposes of ease of …
-
Detection of sparse mixtures: fundamental limits and algorithms
… sample size dependent quantizer, which we term 1-bit quantized tests. As the 1-bit quantized tests have data on a binary alphabet, we are able to precisely analyze the fundamental rate of decay of error probabilities under both hypotheses using our theory. A key contribution of our work is …
-
Efficient Intelligence Towards Real-Time Precision Medicine With Systematic Pruning and Quantization
… map-based pruning, and quantization at different bit-widths (4-bit, 8-bit, 2-bit, and 1-bit), the study aims to develop a more compact and efficient CNN model while maintaining high accuracy. The experimental results demonstrate that these techniques effectively reduce model size, improve …
-
Analytical guarantees for reduced precision fixed-point margin hyperplane classifiers
… dataset is ~2x more accurate than a standard 8 bit low-precision implementation in spite of using ~2x10^4 fewer 1 bit full adders and ~2x10^3 fewer bits for data and weight representation.
-
Area-constrained frequency estimation for focal plane arrays
… is combined with the area estimates of a 1-bit full adder (FA) and a 1-bit register in a 65 nm CMOS process to obtain the area costs of the D-DHT and the DFT. Results show that the D-DHT achieves ~2x area reduction over the DFT with no significant impact on detection accuracy. However, …
-
Matrix multiplication with Asynchronous Logic Automata
… each consume as much power as a town of 5000 inhabitants in the United States. In this thesis I investigate an alternative type of architecture, Asynchronous Logic Automata, which I conclude has the potential to be easy to program in a parametric way and execute very dense, high-throughput …
-
Optical SNS folding circuit design
… processing. With resolution greater than 12 bits, these types of architectures are useful for a variety of applications. The new technique is based on the incorporation of a symmetrical number system (SNS) encoding to provide high resolution (greater than 1-bit per interferometer) while also …
-
Prime-sized multilevel flash memory with non-binary LDPC
… memory companies are increasing the number of bits per cell to obtain higher information capacity per cell, starting from 1 bit/cell and going to 4 bits/cell recently. This scaling is enabled by the advancements in flash semiconductor technology, specifically the Bit Cost Scalable (BiCS) …
-
Scripting graphics with graphics : icons as a visual editing tool
… representations or "icons." The icons are small bitmap images that carry with them information about spatial placement, list placement, and pointers to procedures. Icons have been created and connected to a series of image transformation procedures. Two interactive graphic software packages have …
-
Distributed Training with Heterogeneous Data: Bridging Median- and Mean-Based Algorithms
… approach for communication reduction via 1-bit compression on the local gradients, and medianSGD, an algorithm recently proposed to ensure robustness against Byzantine workers. The convergence analyses for these algorithms critically rely on the assumption that all the distributed data are …
-
An energy efficient CMOS interface to carbon nanotube sensor arrays
… the dynamic range of the interface should be 17 bits, while the resolution at each base resistance should be 7 bits. The proposed CMOS interface extends upon the previously published work to optimize the energy performance through both the architecture and circuit level innovations. The 17-bit …
-
Digital CMOS Design for Ultra Wideband Communication Systems: from Circuit-Level Low Noise Amplifier Implementation to a System-Level Architecture
… of the frequency domain sampler with 1-bit ADCs. Simulation results show that the proposed frequency-domain UWB receiver significantly outperforms a conventional analog correlator. A digital UWB receiver can be implemented efficiently in CMOS with the proposed LNA as an RF front-end, …
-
Broadband Approaches And Beam-Scanning Techniques For Reflectarray Antenna
… that currently efficiency is a big problem. A 1-bit 10ã—10 reconfigurable reflectarray using pin diode was designed, fabricated and measured to explore the energy loss, and experimental results shothat 14% efficiency could be reached. In summary, some improved designs regarding bandwidth and …
-
Decentralized detection in resource-limited sensor network architectures
… and in which all non-leaf nodes need only send 1-bit messages. We also investigate the impact of node failures and unreliable communications on the detection performance. Node failures are modeled by a Galton-Watson branching process, and binary symmetric channels are assumed for the case of …
-
Role of torque in haptic perception of virtual objects
… were also the same, at approximately 1 bit (out of a maximum of 2.81 bits). When subjects probed the virtual object by rocking against it, thus freely changing the orientation of the rod, even with forces reflected only at the front tip of the stylus, performance was the same as when …
-
Array Signal Processing for Communications from High Altitude Platforms and Other Applications
… cellular structure is proposed to generate arbitrary beampattern footprints. A vertical antenna array forming ring-shaped cells is shown to improve the coverage performance and reduce system complexity. In the adaptive beamforming scenario, the minimum variance distortionless response (MVDR) …
-
DESIGN OF MONOLITHICALLY INTEGRATED RF-MEMS MULTI-FUNCTIONAL PASSIVES FOR HYBRID BEAMFORMING ARCHITECTURES IN BEYOND-5G AND 6G SCENARIOS
… GHz). The resulting devices consist in a 3-bit attenuator, three 1-bit phase-shifting cells and a Single-Pole-Double-Throw (SPDT) switch, each relying on membranes featuring a reduced actuation voltage, in the 5–9 V range, for an easier interfacing with electronics based on Complementary …
-
Design of power delivery networks for noise suppression and isolation using power transmission lines
… role in maintaining the signal integrity of the bits propagating on the signal transmission lines. The problem is that the disruption between the power and ground planes induces return path discontinuities (RPDs), which create displacement current sources between the power and ground planes. The …
Page 1 of 2