Results 291 to 300 of about 2,463,245 (334)
Some of the next articles are maybe not open access.
Abstract This chapter reviews the essentials of the harmonic analysis of fractional processes in the frequency domain. Section 1 briefly sets out the theory of harmonic analysis and defines concepts such as transfer function and spectral density. Section 2 shows how this theory applies to the fractional model. Section 3 considers partial
openaire +2 more sources
openaire +2 more sources
1993
Signal averaging is a gated summation of high temporal resolution surface ECG signals from several hundred beats, resulting in a high signal-to-noise ratio1. The technique has been used to study low voltage potentials at the end of the QRS complex2–12. These studies revealed high frequency low-amplitude signal in the terminal segment of the QRS complex
Josef Machac, J. Anthony Gomes
openaire +1 more source
Signal averaging is a gated summation of high temporal resolution surface ECG signals from several hundred beats, resulting in a high signal-to-noise ratio1. The technique has been used to study low voltage potentials at the end of the QRS complex2–12. These studies revealed high frequency low-amplitude signal in the terminal segment of the QRS complex
Josef Machac, J. Anthony Gomes
openaire +1 more source
Identification and Error Analysis in Frequency Domain
First International Conference on Innovative Computing, Information and Control - Volume I (ICICIC'06), 2006The identification algorithm and error analysis are considered in frequency domain by using discrete Fourier transform and spectral analysis. A simple algorithm to estimate the signal spectra is proposed and the property of the estimation is analyzed. The feature of the proposed algorithms is that they can be implemented very easily and the information
Lianming Sun, Akira Sano
openaire +1 more source
Frequency domain analysis of rotational motion
Multidimensional Systems and Signal Processing, 1993Frequency domain analysis of moving imagery is quite informative with respect to spectral estimation and coding techniques based on short-time Fourier transform and wavelet transform. The frequency domain analysis for translations [see the first and the third author, IEE Trans. Pattern Anal. Machine Intell. 15 (1993) and the first author and \textit{G.
Guido M. Cortelazzo +2 more
openaire +1 more source
A Frequency Domain Analysis of Learning Control
Journal of Dynamic Systems, Measurement, and Control, 1994The convergence of learning control is traditionally analyzed in the time domain. This is because a finite planning horizon is often assumed and the analysis in time domain can be extended to time-varying and nonlinear systems. For linear time-invariant (LTI) systems with infinite planning horizon, however, we show that simple frequency domain ...
openaire +2 more sources
1988
The analysis of electrical signals is a fundamental problem for most engineers. As we have seen, even if the basic problem is not electrical, the parameters of interest are usually changed from pressure, force, temperature etc. into an electrical quantity by means of transducers.
openaire +1 more source
The analysis of electrical signals is a fundamental problem for most engineers. As we have seen, even if the basic problem is not electrical, the parameters of interest are usually changed from pressure, force, temperature etc. into an electrical quantity by means of transducers.
openaire +1 more source
2001
Although the differential equation is a basic system description, obtaining this equation can be tedious and time-consuming. Consequently for a time-invariant system this approach is avoided in practice, except in special cases. The Fourier and Laplace transforms offer an alternative approach for characterizing and analyzing these systems. Insight into
openaire +1 more source
Although the differential equation is a basic system description, obtaining this equation can be tedious and time-consuming. Consequently for a time-invariant system this approach is avoided in practice, except in special cases. The Fourier and Laplace transforms offer an alternative approach for characterizing and analyzing these systems. Insight into
openaire +1 more source