118 citations · 223 across the 6 of their papers we have counts for
6 papers
Global helioseismic evidence for a deeply penetrating Solar meridional flow consisting of multiple flow cells
A. Schad, J. Timmer, M. Roth
We use a novel global helioseismic analysis method to infer the meridional flow in the deep Solar interior. The method is based on the perturbation of eigenfunctions of Solar p mod…
Phase synchronization from noisy univariate signals
A. G. Rossberg, K. Bartholome, H. U. Voss +1
We present methods for detecting phase synchronization of two unidirectionally coupled, self-sustained noisy oscillators from a signal of the driven oscillator alone. One method de…
Data driven optimal filtering for phase and frequency of noisy oscillations: application to vortex flowmetering
A. G. Rossberg, K. Bartholome, J. Timmer
A new method for extracting the phase of oscillations from noisy time series is proposed. To obtain the phase, the signal is filtered in such a way that the filter output has minim…
Quantitative analysis by renormalized entropy of invasive electroencephalograph recordings in focal epilepsy
K. Kopitzki, P. C. Warnke, J. Timmer
Invasive electroencephalograph (EEG) recordings of ten patients suffering from focal epilepsy were analyzed using the method of renormalized entropy. Introduced as a complexity mea…
Analyzing X-ray variability by State Space Models
M. König, J. Timmer, R. Staubert
In recent years, autoregressive models have had a profound impact on the description of astronomical time series as the observation of a stochastic process. These methods have adva…
Analyzing X-ray variability by Linear State Space Models
Michael Koenig, Jens Timmer
In recent years, autoregressive models have had a profound impact on the description of astronomical time series as the observation of a stochastic process. These methods have adva…