Results 221 to 230 of about 258,729 (270)
Some of the next articles are maybe not open access.
Journal of Nonlinear Science, 1997
It is shown how it is possible to combine Fourier projections with local nonlinear prediction to provide a methodology which can, in principle, recognize independent dynamical signals. That methodology is applied to a variety of chaotic signals with superimposed the sine waves. Moreover, it is shown how sine wave frequency can be recognized dynamically
Kember, G., Fowler, A. C., Evans, H. B.
openaire +1 more source
It is shown how it is possible to combine Fourier projections with local nonlinear prediction to provide a methodology which can, in principle, recognize independent dynamical signals. That methodology is applied to a variety of chaotic signals with superimposed the sine waves. Moreover, it is shown how sine wave frequency can be recognized dynamically
Kember, G., Fowler, A. C., Evans, H. B.
openaire +1 more source
Optics Letters, 1996
We demonstrate a nonlinear Christiansen filter in both the steady state and the transient regimes and in both the self- and the cross-modulation modes. Experiments in which a thermal nonlinearity was used agree well with predictions based on a modified scattering theory model.
S D, Vartak, N M, Lawandy
openaire +2 more sources
We demonstrate a nonlinear Christiansen filter in both the steady state and the transient regimes and in both the self- and the cross-modulation modes. Experiments in which a thermal nonlinearity was used agree well with predictions based on a modified scattering theory model.
S D, Vartak, N M, Lawandy
openaire +2 more sources
Characterising auditory filter nonlinearity
Hearing Research, 1994An important aspect of auditory nonlinearity is that psychoacoustically measured auditory filters broaden as the level at which they are measured increases. However, it is not yet clear whether the change in filter shape is controlled primarily by the level of the probe or that of the masker.
Rosen, Stuart, Baker, Richard
openaire +3 more sources
Filtering by nonlinear systems
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2008Synchronization of nonlinear systems forced by external signals is formalized as the response of a nonlinear filter. Sufficient conditions for a nonlinear system to behave as a filter are given. Some examples of generalized chaos synchronization are shown to actually be special cases of nonlinear filtering.
Campos Cantón, E. +2 more
openaire +2 more sources
Introducing Legendre nonlinear filters
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014This paper introduces a novel sub-class of linear-in-the-parameters nonlinear filters, the Legendre nonlinear filters. Their basis functions are polynomials, specifically, products of Legendre polynomial expansions of the input signal samples. Legendre nonlinear filters share many of the properties of the recently introduced classes of Fourier ...
Alberto Carini +3 more
openaire +3 more sources
Journal of Applied Physics, 1953
The theory of optimum nonlinear filters outlined in this paper is based on the consideration of a sequence of classes of nonlinear filters, designated as 𝔑1, 𝔑2, 𝔑3, …, such that each class in the sequence includes all the preceding classes and, furthermore, the class of linear filters is a subclass of every class in the sequence.
openaire +2 more sources
The theory of optimum nonlinear filters outlined in this paper is based on the consideration of a sequence of classes of nonlinear filters, designated as 𝔑1, 𝔑2, 𝔑3, …, such that each class in the sequence includes all the preceding classes and, furthermore, the class of linear filters is a subclass of every class in the sequence.
openaire +2 more sources