Results 221 to 230 of about 2,878,509 (264)
Some of the next articles are maybe not open access.
Optical time domain reflectometer
Applied Optics, 1977By using an optical time domain reflectometer a new measurement technique which allows displaying the length dependence of the fiber attenuation by analyzing backscattered light has been developed. This paper compares the backscatter and insertion-loss techniques.
M K, Barnoski +3 more
openaire +2 more sources
Analysis of accumulated timing-jitter in the time domain
IEEE Transactions on Instrumentation and Measurement, 1998This paper deals with the effects of accumulated timing-jitter on the signal-to-noise ratio (SNR) of real sine waves. Such a problem was recently investigated by the author, using the discrete-Fourier method. However, the frequency-domain analysis has some limitations due to the fact that some of the accumulated timing-jitter noise power, found at the ...
openaire +1 more source
Time-domain Oustaloup approximation
2015 20th International Conference on Methods and Models in Automation and Robotics (MMAR), 2015Paper presents a new method for implementing Oustaloup approximation of non-integer order systems in digital environment. Classical method and its limitations are presented and discussed. Method of realization is formulated and schemes for discretization are presented. Operation of method is illustrated with two examples.
Jerzy Baranowski +4 more
openaire +1 more source
Time domain right invertibility
2006 American Control Conference, 2006Generalized systems (also called implicit, descriptor, etc.) usually offer more possibilities for solving control and observation problems. In this context, we use an important tool of System Theory, namely right invertible systems. In this paper we consider some possible dualizations results on time domain left invertibility and point out which ...
Moisés E. Bonilla +2 more
openaire +1 more source
On frequency-domain and time-domain phase unwrapping
Proceedings of the IEEE, 1987Time-domain phase unwrapping of analytic or complex functions of time is an unavoidable operation when processing such signals within an FM-modeling framework or when attempting to establish the instantaneous frequency of such signals. With the help of an alternate derivation of his equations, Tribolet's frequency-domain phase unwrapping algorithm is ...
openaire +1 more source
Electrical neuroimaging in the time domain
2009A publication entitled “A default mode of brain function” initiated a new way of looking at functional imaging data. In this PET study the authors discussed the often-observed consistent decrease of brain activation in a variety of tasks as compared with the baseline.
Michel, C M, Koenig, T, Brandeis, D
openaire +3 more sources
Conversion of frequency-domain data to the time domain
Proceedings of the IEEE, 1986The advantages and disadvantages of three different algorithms for transforming frequency-domain data to the time domain are reviewed. The algorithms are a direct computation of the Fourier series, the fast Fourier transform, and the chirp-z transform.
openaire +1 more source
1992
Many of the data sets which might best be handled by one of the approaches of the previous chapters would often be treated by a classical time series analysis, assuming a normal distribution. Most often, this simply amounts to fitting a multiple regression, with (a dynamic model) or without (a static model) lagged variables. Checks are then made on the
openaire +1 more source
Many of the data sets which might best be handled by one of the approaches of the previous chapters would often be treated by a classical time series analysis, assuming a normal distribution. Most often, this simply amounts to fitting a multiple regression, with (a dynamic model) or without (a static model) lagged variables. Checks are then made on the
openaire +1 more source
Comparation Classification of EMG Signals in the Time Domain and Time-Frequency Domain
2023 International Conference on Electrical Engineering and Informatics (ICEEI), 2023Muhammad Adzkia +2 more
openaire +1 more source