Title :
A novel automatic digital quasi-peak detector for a time domain measurement system
Author :
Braun, Stephan ; Krug, Florian ; Russer, Peter
Author_Institution :
Lehrstuhl fur Hochfrequenztechnik, Technische Univ. Munchen, Germany
Abstract :
An advanced ultra-fast broadband time domain EMI (TDEMI) measurement system is presented. Measurements were performed in the 30-1000 MHz range. Using digital signal processing for spectral estimation and detection, the measurement time is reduced by a factor of 10 in comparison to a conventional EMI receiver. A novel recording routine for TDEMI measurement and digital signal processing for proper quasi-peak detection is described. Different amplitude resolutions are selected during the recording to enhance the dynamic range by about 50 dB. Measurement results are compared with the results obtained with a conventional EMI receiver.
Keywords :
data recording; electromagnetic interference; measurement systems; peak detectors; signal detection; signal processing; spectral analysis; 30 to 1000 MHz; EMI measurement system; amplitude resolution; analog quasi-peak detector; automatic digital quasi-peak detector; digital signal processing; spectral detection; spectral estimation; time domain measurement system; ultra-fast broadband measurement system; Detectors; Digital signal processing; Dynamic range; Electric variables measurement; Europe; Frequency measurement; Performance evaluation; Signal detection; Time domain analysis; Time measurement;
Conference_Titel :
Electromagnetic Compatibility, 2004. EMC 2004. 2004 InternationalSymposium on
Print_ISBN :
0-7803-8443-1
DOI :
10.1109/ISEMC.2004.1349948
