[图书][B] Ice ages and astronomical causes: data, spectral analysis and mechanisms

RA Muller, GJ MacDonald - 2002 - books.google.com
It is not possible to understand the present or future climate unless scientists can account for
the enormous and rapid cycles of glaciation that have taken place over the last million years …

On the recovery of effective elastic thickness using spectral methods: examples from synthetic data and from the Fennoscandian Shield

M Pérez‐Gussinyé, AR Lowry, AB Watts… - … Research: Solid Earth, 2004 - Wiley Online Library
There is considerable controversy regarding the long‐term strength of continents (Te). While
some authors obtain both low and high Te estimates from the Bouguer coherence and …

Spatial information outflow from the hippocampal circuit: distributed spatial coding and phase precession in the subiculum

SM Kim, S Ganguli, LM Frank - Journal of Neuroscience, 2012 - Soc Neuroscience
Hippocampal place cells convey spatial information through a combination of spatially
selective firing and theta phase precession. The way in which this information influences …

Double-difference adjoint seismic tomography

YO Yuan, FJ Simons, J Tromp - Geophysical Journal …, 2016 - academic.oup.com
We introduce a 'double-difference'method for the inversion for seismic wave speed structure
based on adjoint tomography. Differences between seismic observations and model …

Parkinsonian rest tremor is associated with modulations of subthalamic high‐frequency oscillations

J Hirschmann, M Butz, CJ Hartmann… - Movement …, 2016 - Wiley Online Library
ABSTRACT Background High frequency oscillations (> 200 Hz) have been observed in the
basal ganglia of PD patients and were shown to be modulated by the administration of …

Spectrum estimation by wavelet thresholding of multitaper estimators

AT Walden, DB Percival… - IEEE Transactions on …, 1998 - ieeexplore.ieee.org
Current methods for power spectrum estimation by wavelet thresholding use the empirical
wavelet coefficients derived from the log periodogram. Unfortunately, the periodogram is a …

Spatiospectral localization of isostatic coherence anisotropy in Australia and its relation to seismic anisotropy: Implications for lithospheric deformation

FJ Simons, RD van der Hilst… - Journal of Geophysical …, 2003 - Wiley Online Library
We investigate the two‐dimensional (2‐D) nature of the coherence between Bouguer gravity
anomalies and topography on the Australian continent. The coherence function or isostatic …

Rotary components, random ellipses and polarization: a statistical perspective

AT Walden - … Transactions of the Royal Society A …, 2013 - royalsocietypublishing.org
Rotary analysis decomposes vector motions on the plane into counter-rotating components,
which have proved particularly useful in the study of geophysical flows influenced by the …

Multitaper spectral estimation of power law processes

EJ McCoy, AT Walden… - IEEE Transactions on …, 1998 - ieeexplore.ieee.org
In many branches of science, particularly astronomy and geophysics, power spectra of the
form f/sup-/spl beta//, where/spl beta/is a positive power-law exponent, are common. This …

Multivariate spectral analysis using Cholesky decomposition

M Dai, W Guo - Biometrika, 2004 - academic.oup.com
We propose to smooth the Cholesky decomposition of a raw estimate of a multivariate
spectrum, allowing different degrees of smoothness for different elements. The final spectral …