Ambient noise cancellation in frequency domain EMI measurement

Ambient noise cancellation in frequency domain EMI measurement

In this paper, an advanced signal processing technique for measurements of electromagnetic interference from electronic devices will be presented. Lower and lower ambient noise is preferred in electromagnetic interference measurement. Not all the device producers can pay for darkroom measurement, be...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Jian Xu, Fei Dai, Donglin Su, Qi Qiao, Haopeng Zheng
Format: Tagungsbericht
Sprache:eng
Schlagworte:
ambient noise cancellation
Antenna measurements
Electromagnetic compatibility
Electromagnetic interference
EMI measurement
Equations
frequency domain
Mathematical model
Noise
Noise measurement
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Beschreibung
Zusammenfassung:In this paper, an advanced signal processing technique for measurements of electromagnetic interference from electronic devices will be presented. Lower and lower ambient noise is preferred in electromagnetic interference measurement. Not all the device producers can pay for darkroom measurement, because it real costs a lot. This method provides an opportunity to perform an electromagnetic interference measurement at a site polluted by electromagnetic ambient noise. Resulted from a real device under test, automatic measurement with this method that successfully cancels the ambient noise will be presented.
DOI:10.1109/MAPE.2011.6156142