Title :
Spectral noise density of the Preisach model
Author :
Dimian, M. ; Mayergoyz, I.D.
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Maryland, College Park, MD, USA
fDate :
7/1/2004 12:00:00 AM
Abstract :
The spectral density of the output of a Preisach system affected by internal noise is discussed. The method for computing the spectral noise density has two main ingredients. First, the mathematical theory of stochastic processes on graph is used to overcome the difficulty that the output is not a Markovian process. Second, special techniques are used to appreciably simplify the expression for the spectral noise density. Various Preisach systems are considered and the corresponding spectral noise densities are computed and analyzed.
Keywords :
graph theory; noise; spectral analysis; stochastic processes; Markovian process; Preisach model; Preisach system output; expression simplifying; graph theory; internal noise; spectral density; spectral noise density; stochastic processes; thermal relaxations; Autocorrelation; Helium; Magnetic analysis; Magnetic hysteresis; Memory; Quantum computing; Stochastic processes; Stochastic resonance; Superconducting device noise; Superconducting magnets; Graph theory; Preisach model; spectral density; thermal relaxations;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.832262
