14 papers · ranked by Valyu relevance
Michael Hutcheon, Andrew Teale
Algorithms are presented for performing a topological analysis of an arbitrary function, evaluated on an arbitrary grid of points. These algorithms work strictly by post-processing the data and require no additional function evaluations. This is achieved by connecting the grid points with a neighbourhood graph…
Jisheng Dai, Xu Bao, Weichao Xu, Chunqi Chang
—The performance of the existing sparse Bayesian learning (SBL) methods for off-grid DOA estimation is dependent on the trade off between the accuracy and the computational workload. To speed up the off-grid SBL method while remain a reasonable accuracy, this letter describes a computationally efficient root SBL method…
Albert Fannjiang, Hsiao-Chieh Tseng
Compressed sensing (CS) schemes are proposed for monostatic as well as synthetic aperture radar (SAR) imaging with chirped signals and Ultra-Narrowband (UNB) continuous waveforms. In particular, a simple, perturbation method is developed to reduce the gridding error for off-grid targets. A coherence bound is obtained…
Michael Hutcheon, Andrew Teale
Algorithms are presented for performing a topological analysis of an arbitrary function, evaluated on an arbitrary grid of points. These algorithms work strictly by post-processing the data and require no additional function evaluations. This is achieved by connecting the grid points with a neighbourhood graph…
Authors not listed
Development of meta-generalized gradient approximations (meta-GGAs) has generally led to more accurate density-functional approximations, albeit ones that have more stringent requirements for the quadrature grids that are used to evaluate the exchange-correlation energy. Here, we demonstrate that grid-induced errors…
Cristina Rueda-Uribe, Alyssa J. Sargent, María Ángela Echeverry-Galvis, Pedro A. Camargo-Martínez + 4 more
Automated radio telemetry systems (ARTS) have the potential to revolutionise our understanding of animal movement by providing a near-continuous record of individual locations in the wild. However, localisation error in data generated by ARTS can be very high, especially in natural landscapes with complex vegetation…
Antonio Nedjalkov, Jan Meyer, Heiko Göken, Maximilian V. Reimer + 1 more
'Wolfgang Schade'] Developed societies with advanced economic performance are undoubtedly coupled with the availability of electrical energy. Whilst industrialized nations already started to decrease associated carbon emissions in many business sectors, e.g., by substituting combustion engines with battery-powered…
Sajjad Haider, Babar Nazir
Computational grids are established with the intention of providing shared access to hardware and software based resources with special reference to increased computational capabilities. Fault tolerance is one of the most important issues faced by the computational grids. The main contribution of this survey is the…
Muhammad Shahzad Javed, Tao Ma, Navid Mousavi, Salman Ahmed + 3 more
'Henrik Lund' 'Hongxing Yang' 'Yanjun Dai'] Title: Summary Addressing climate change with the rising global energy usage necessitates electricity sector decarbonization by rapidly moving toward flexible and efficient off-grid renewable energy systems (RESs). This paper analyzes the wind and solar micro-grids, with…
Sławomir Bielecki, Tadeusz Skoczkowski, Marcin Wołowicz, Guillermo Villanueva + 4 more
The article presents an overview of knowledge in the field of energy microgrids as smart structures enabling energy self-sufficiency, with particular emphasis on decarbonisation. Based on a review of the literature and technical solutions, the characteristics have been classified and, emphasising the potential for…
Martin Stemmler, Alexander Mathis, Andreas V. M. Herz
Mammalian grid cells fire whenever an animal crosses the points of an imaginary, hexagonal grid tessellating the environment. Here, we show how animals can localize themselves and navigate by reading-out a simple population vector of grid cell activity across multiple scales, even though this activity is intrinsically…
Valliappan Muthukaruppan, Ashwin Shirsat, Rongxing Hu, Victor Paduani + 6 more
'Victor Paduani' 'Bei Xu' 'Yiyan Li' 'Mesut Baran' 'Ning Lü' 'David Lubkeman' 'Tang Wen-yuan'] Abstract—Forming a microgrid on a distribution system with large scale outage after a severe weather event is emerging as a viable solution to improve resiliency at the distribution level. This option becomes more attractive…
Rajesh Singh, Shaik Vaseem Akram, Anita Gehlot, Dharam Buddhi + 3 more
'Neeraj Priyadarshi' 'Bhekisipho Twala' 'Nikos Fotiou'] The United Nations’ sustainable development goals have emphasized implementing sustainability to ensure environmental security for the future. Affordable energy, clean energy, and innovation in infrastructure are the relevant sustainable development goals that are…
Olamide Oladeji, Pedro Ciller Cutillas, Fernando de Cuadra, José Ignacio Pérez Arriaga
Planning Authors: ['Olamide Oladeji' 'Pedro Ciller Cutillas' 'Fernando de Cuadra' 'José Ignacio Pérez Arriaga'] Abstract—In many developing countries, access to electricity remains a significant challenge. Electrification planners in these countries often have to make important decisions on the mode of electrification…