Results 1 to 10 of about 1,353,376 (300)

Rotating black hole orbit functionals in the frequency domain

, 2003
In many astrophysical problems, it is important to understand the behavior of functions that come from rotating (Kerr) black hole orbits. It can be particularly useful to work with the frequency domain representation of those functions, in order to bring
C. Cutler, C.D. Bailyn, D.C. Wilkins, E.J.M. Colbert, E.J.M. Colbert, K. Gebhardt, K. Glampedakis, K. Glampedakis, M. Shibata, M.C. Begelman, N.I. Shakura, R.K. Williams, S.A. Hughes, S.A. Hughes, S.A. Hughes, S.A. Teukolsky, Scott A. Hughes, Steve Drasco, W. Schmidt, Y. Mino   +19 more
core   +1 more source

Frequency Domain Image Filtering Using CUDA [PDF]

Mehran University Research Journal of Engineering and Technology, 2014
In this paper, we investigate the implementation of image filtering in frequency domain using NVIDIA?s CUDA (Compute Unified Device Architecture). In contrast to signal and image filtering in spatial domain which uses convolution operations and hence is ...
Muhammad Awais Rajput, Umair Ali Khan, Nisar Ahmed Memon   +2 more
doaj  

Interpolation in the time and frequency domains [PDF]

IEEE Signal Processing Letters, 1996
We clarify the connections between two apparently unrelated approaches to bandlimited interpolation by showing that, in a certain sense, they are the dual of each other. The advantages of recognizing this duality are discussed.
openaire   +1 more source

Evaluation of data representation techniques for vibration based road surface condition classification

Scientific Reports
The accurate classification of road surface conditions plays a vital role in ensuring road safety and effective maintenance. Vibration-based techniques have shown promise in this domain, leveraging the unique vibration signatures generated by vehicles to
E. Raslan, Mohammed F․ Alrahmawy, Y. A. Mohammed, A. S․ Tolba   +3 more
doaj   +1 more source

Frequency Domain Probe Design for High Frequency Sensing of Soil Moisture

Agriculture, 2016
Accurate moisture sensing is an important need for many research programs as well as in control of industrial processes. This paper describes the development of a high accuracy frequency domain sensing probe for use in obtaining dielectric measurements ...
Mathew G. Pelletier, Robert C. Schwartz, Greg A. Holt, John D. Wanjura, Timothy R. Green   +4 more
doaj   +1 more source

Co-movement of energy commodities revisited: Evidence from wavelet coherence analysis

, 2012
In this paper, we contribute to the literature on energy market co-movement by studying its dynamics in the time-frequency domain. The novelty of our approach lies in the application of wavelet tools to commodity market data.
Barunik, Jozef, Vacha, Lukas
core   +1 more source

Pipelined digital SAR azimuth correlator using hybrid FFT-transversal filter [PDF]

, 1984
A synthetic aperture radar system (SAR) having a range correlator is provided with a hybrid azimuth correlator which utilizes a block-pipe-lined fast Fourier transform (FFT).
Liu, K. Y., Wu, C.
core   +1 more source

Identifying technology shocks in the frequency domain [PDF]

Since Galí [1999], long-run restricted VARs have become the standard for identifying the effects of technology shocks. In a recent paper, Francis et al. [2008] proposed an alternative to identify technology as the shock that maximizes the forecast-error ...
Michael T. Owyang, Riccardo DiCecio
core  

Efficient Analysis of Ferrite Loaded Waveguides Using the MRFD Method [PDF]

, 2012
A full wave two-dimensional Multiresolution Frequency Domain formulation for efficient analysis of the dispersion characteristics of ferrite loaded waveguide structures is developed and presented.
Gokten, M.
core   +1 more source

A simple method for converting frequency domain aerodynamics to the time domain [PDF]

A simple, direct procedure was developed for converting frequency domain aerodynamics into indicial aerodynamics. The data required for aerodynamic forces in the frequency domain may be obtained from any available (linear) theory.
Dowell, E. H.
core   +1 more source