Noise influence in time-to-frequency transformation of radiated emissions data

Author

Bellan, Diego ; Pignari, Sergio A.

Author_Institution

Dept. of Electr. Eng., Politec. di Milano, Milan

fYear

2008

fDate

8-12 Sept. 2008

Firstpage

1

Lastpage

4

Abstract

In this paper, the statistical properties of the amplitude of an electromagnetic field measured in the time domain by a three-axial system and processed through the discrete Fourier transform are investigated. Propagation of noise introduced by the three measuring channels is studied under the general assumption of channels with different noise levels. Analytical expressions for the probability density function, the mean value, and the standard deviation of the resulting amplitude are derived in explicit form.

Keywords

computational electromagnetics; discrete Fourier transforms; statistical analysis; time-frequency analysis; discrete Fourier transform; electromagnetic field; noise influence; probability density function; radiated emissions data; three-axial system; time-to-frequency transformation; Discrete Fourier transforms; Electric variables measurement; Electromagnetic interference; Electromagnetic measurements; Frequency measurement; Magnetic field measurement; Noise level; Noise measurement; Probability density function; Time measurement; discrete Fourier transforms; electromagnetic radiation; noise; time domain measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility - EMC Europe, 2008 International Symposium on

Conference_Location

Hamburg

Print_ISBN

978-1-4244-2737-6

Electronic_ISBN

978-1-4244-2737-6

Type

conf

DOI

10.1109/EMCEUROPE.2008.4786835

Filename

4786835