Buscar
Mostrando ítems 1-10 de 216
The aliasing effect, the Fejer Kernel and temporally aggregated long memory processes
(Escola de Pós-Graduação em Economia da FGV, 2003-01-01)
This paper derives the spectral density function of aggregated long memory processes in light of the aliasing effect. The results are different from previous analyses in the literature and a small simulation exercise ...
Retrieving shallow shear-wave velocity profiles from 2D seismic-reflection data with severely aliased surface waves
(Elsevier Science, 2019-02)
The inversion of surface-wave phase-velocity dispersion curves provides a reliable method to derive near-surface shear-wave velocity profiles. In this work, we invert phase-velocity dispersion curves estimated from 2D ...
Oversampling and aliasing in de Branges spaces arising from Bessel operators
(Academic Press Inc Elsevier Science, 2020-12-01)
We show that a class of de Branges spaces, generated by means of generalized Fourier transforms associated with perturbed Bessel differential equations, has the properties of oversampling and aliasing.
Disclosing ambiguous gene aliases by automatic literature profiling
(Biomed Central, 2015)
A note on Chambers's 'long memory and aggregation in macroeconomic time series'
(Escola de Pós-Graduação em Economia da FGV, 2003-10-07)
Chambers (1998) explores the interaction between long memory and aggregation. For continuous-time processes, he takes the aliasing effect into account when studying temporal aggregation. For discrete-time processes, however, ...
Inadequate Sampling Rates Can Undermine the Reliability of Ecological Interaction Estimation
(Mdpi, 2019-06-01)
Cycles in population dynamics are abundant in nature and are understood as emerging from the interaction among coupled species. When sampling is conducted at a slow rate compared to the population cycle period (aliasing ...
Disclosing ambiguous gene aliases by automatic literature profiling
(Biomed Central, 2010)
Spectral properties of temporally aggregated long memory processes
(Escola de Pós-Graduação em Economia da FGV, 2003-10-23)
This paper derives the spectral density function of aggregated long memory processes in light of the aliasing effect. The results are different from previous analyses in the literature and a small simulation exercise ...