Estimation of magnetization transition shape using Wiener deconvolution

Author

Chooruang, Komkrit ; Aziz, Mustafa M.

Author_Institution

Fac. of Ind. Technol., Nakhon Phanom Univ., Nakhon Phanom, Thailand

fYear

2014

fDate

22-25 Oct. 2014

Firstpage

1

Lastpage

5

Abstract

In this paper, magnetization transition width and shape were calculated by Wiener deconvolution on the measured replay waveform. It was found that the signal-to-noise ratio of replay waveform above 40dB, the error of computed magnetization transition was less than 1%. It can be observed that the magnetization transition from the experimental measurement is close to the tanh function and the transition width parameter was found to be as same as the result from using the replay signal fitted with magnetization function.

Keywords

deconvolution; magnetisation; perpendicular magnetic recording; stochastic processes; Wiener deconvolution; magnetization function; magnetization transition shape; magnetization transition width; replay signal; replay waveform; signal-to-noise ratio; tanh function; transition width parameter; Deconvolution; Magnetic heads; Magnetization; Noise measurement; Signal to noise ratio; Wiener filters; Wiener filter; reciprocity theorem; transition width;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2014 - 2014 IEEE Region 10 Conference

Conference_Location

Bangkok

ISSN

2159-3442

Print_ISBN

978-1-4799-4076-9

Type

conf

DOI

10.1109/TENCON.2014.7021868

Filename

7021868