Title :
A time-domain EMI measurement system up to 26 GHz with amplitude probability distribution
Author :
Hoffmann, Christian ; Slim, Hassan Hani ; Russer, Peter
Author_Institution :
Inst. for High-Freq. Eng., Tech. Univ. Munchen, Munich, Germany
Abstract :
In this paper, a low-noise time-domain electromagnetic interference (EMI) measurement system for the frequency range from 9 kHz - 26 GHz is presented. It combines ultra-fast analog-to-digital-conversion and real-time digital signal processing on a field-programmable-gate-array (FPGA) with ultra-broadband multi-stage down-conversion. Scan time is decreased by several orders of magnitude compared to traditional EMI receivers. Non-stationary signals can be measured via the broadband, real-time spectrogram with a bandwidth of 162.5 MHz. The implemented multichannel amplitude probability distribution function (APD) allows for the evaluation of the statistical properties of broadband digital communication services.
Keywords :
analogue-digital conversion; electromagnetic interference; field programmable gate arrays; measurement systems; statistical distributions; time-domain analysis; bandwidth 162.5 MHz; broadband digital communication service; field programmable gate array; frequency 9 kHz to 26 GHz; multichannel amplitude probability distribution function; nonstationary signal measurement; real-time digital signal processing; real-time spectrogram; statistical property; time-domain EMI measurement system; ultra-broadband multistage down-conversion; ultra-fast analog-to-digital-conversion; Bandwidth; Electromagnetic interference; Frequency measurement; Real time systems; Receivers; Spectrogram; Time domain analysis;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2011 International Conference on
Conference_Location :
Torino
Print_ISBN :
978-1-61284-976-8
DOI :
10.1109/ICEAA.2011.6046382
