Ultra-fast broadband EMI measurement in time domain using classical spectral estimation

Krug, F.; Russer, P.

doi:10.1109/MWSYM.2002.1012318

krug_ultra-fast_2002

Document type:: Konferenzbeitrag
Author(s):: Krug, F.; Russer, P.
Title:: Ultra-fast broadband EMI measurement in time domain using classical spectral estimation
Abstract:: In this paper, a novel ultra-fast, broadband time domain EMI measurement system is described. Measurements were performed in the 30-1000 MHz range. The signals from the antenna are digitized and processed by computer in order to obtain Fast-Fourier Transform (FFT) as well as Welch and Bartlett Periodograms. Correction of errors originating from the frequency characteristics of antenna, cable and oscilloscope is made by digital signal processing. With the presented time domain measurement system, the measurement time can be reduced by a factor of 10. The results obtained with the described system have been compared with measurements performed with a conventional EMI receiver. Over the whole frequency range from 30 to 1000 MHz the deviations have been below 3 dB «
In this paper, a novel ultra-fast, broadband time domain EMI measurement system is described. Measurements were performed in the 30-1000 MHz range. The signals from the antenna are digitized and processed by computer in order to obtain Fast-Fourier Transform (FFT) as well as Welch and Bartlett Periodograms. Correction of errors originating from the frequency characteristics of antenna, cable and oscilloscope is made by digital signal processing. With the presented time domain measurement system,... »
Keywords:: electromagnetic interference, measurement time reduction, digital signal processing, signal processing, UHF measurement, fast Fourier transform, fast Fourier transforms, spectral analysis, electric noise measurement, error correction, 30 to 1000 MHz, time domain EMI measurement system, Bartlett periodograms, broadband EMI measurement system, FFT periodograms, ultra-fast EMI measurement system, Welch periodograms
Book / Congress title:: Microwave Symposium Digest, 2002 IEEE MTT-S International
Volume:: 3
Year:: 2002
Pages:: 2237--2240
Fulltext / DOI:: doi:10.1109/MWSYM.2002.1012318
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mediaTUM Gesamtbestand Einrichtungen Hochschulpräsidium TUM Senior Excellence Faculty

mediaTUM Gesamtbestand Einrichtungen Schools TUM School of Computation, Information and Technology Departments Electrical Engineering Computational Photonics (Prof. Jirauschek)Peter Russer