Ultra-fast broadband EMI measurement in time-domain using FFT and Periodogram

被引：0
|
作者：
Krug, F [1 ]
Russer, P [1 ]
机构：
[1] Tech Univ Munich, Inst High Frequency Engn, D-8000 Munich, Germany
来源：
2002 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, VOLS 1 AND 2, SYMPOSIUM RECORD | 2002年
关键词：
time domain measurements; spectral analysis; electromagnetic interference; measurement;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel ultra-fast, broadband time domain EMI measurement system is described. Measurenzents were performed in the 30 - 1000 MHz range. The signals from the antenna are digitized and processed by a 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.
引用
收藏
页码：577 / 582
页数：6
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