15 citations · 37 across the 6 of their papers we have counts for
3 papers · 1 filter
Combustion Process in a Spark Ignition Engine: Dynamics and Noise Level Estimation
T. Kaminski, M. Wendeker, K. Urbanowicz +1
We analyse the experimental time series of internal pressure in a four cylinder spark ignition engine. In our experiment, performed for different spark advance angles, apart from u…
Noise reduction in chaotic time series by a local projection with nonlinear constraints
Krzysztof Urbanowicz, Janusz A. Holyst, Thomas Stemler +1
On the basis of a local-projective (LP) approach we develop a method of noise reduction in time series that makes use of nonlinear constraints appearing due to the deterministic ch…
Noise level estimation of time series using coarse grained entropy
K. Urbanowicz, J. A. Holyst
We present a method of noise level estimation that is valid even for high noise levels. The method makes use of the functional dependence of coarse grained correlation entropy $K_2…