TY - GEN
T1 - Time-domain EMI measurements in the presence of ambient noise
AU - Frech, Arnd
AU - Braun, Stephan
AU - Russer, Peter
PY - 2009
Y1 - 2009
N2 - This paper presents adaptive cancelation techniques to suppress ambient noise in electromagnetic interference measurements on open area test sites. The measurements are carried out in time-domain to reduce the total measurement time. To achieve optimum cancelation, time-domain as well as frequency domain adaptive filter algorithms have been investigated and compared in respect of their suppression performance. An advanced digital signal processing technique for fast measurements of electromagnetic interference from electronic devices is presented. Fast measurements of electromagnetic interference of electronic devices and systems are carried out on a test site polluted by electromagnetic ambient noise. Frequency domain adaptive filtering using the overlap-save method is applied. Measurements of a personal computer as device under test are carried out on an urban test site showing the successful cancelation of ambient noise in a frequency range from 30MHz to 1GHz.
AB - This paper presents adaptive cancelation techniques to suppress ambient noise in electromagnetic interference measurements on open area test sites. The measurements are carried out in time-domain to reduce the total measurement time. To achieve optimum cancelation, time-domain as well as frequency domain adaptive filter algorithms have been investigated and compared in respect of their suppression performance. An advanced digital signal processing technique for fast measurements of electromagnetic interference from electronic devices is presented. Fast measurements of electromagnetic interference of electronic devices and systems are carried out on a test site polluted by electromagnetic ambient noise. Frequency domain adaptive filtering using the overlap-save method is applied. Measurements of a personal computer as device under test are carried out on an urban test site showing the successful cancelation of ambient noise in a frequency range from 30MHz to 1GHz.
UR - http://www.scopus.com/inward/record.url?scp=74349089020&partnerID=8YFLogxK
U2 - 10.1109/ISEMC.2009.5284584
DO - 10.1109/ISEMC.2009.5284584
M3 - Conference contribution
AN - SCOPUS:74349089020
SN - 9781424442676
T3 - IEEE International Symposium on Electromagnetic Compatibility
SP - 139
EP - 142
BT - 2009 IEEE International Symposium on Electromagnetic Compatibility, EMC 2009
T2 - 2009 IEEE International Symposium on Electromagnetic Compatibility, EMC 2009
Y2 - 17 August 2009 through 21 August 2009
ER -