Print Request Permissions Save to Project Traditionally measurements of electromagnetic interference (EMI) are carried out in frequency domain resulting in long testing times according to the frequency range and resolution in frequency. By applying time-domain technology EMI measurements can be done now in real-time for a broad frequency range of several hundred Megahertz. This paper presents advanced strategies with real-time capability for adaptive noise cancellation based on a powerful hardware platform to enable EMI measurements in the presence of electromagnetic ambient noise on open test sites. Frequency domain and time-domain adaptive filtering are compared. Two adaptive filter algorithms are enhanced in respect of implementing the noise cancelling algorithm on field programmable gate arrays. Ensuring a continuous high data-throughput by an optimized digital signal processing a real-time noise suppressing method is shown for frequency bands of over 125 MHz bandwidth at once.      «

Print Request Permissions Save to Project Traditionally measurements of electromagnetic interference (EMI) are carried out in frequency domain resulting in long testing times according to the frequency range and resolution in frequency. By applying time-domain technology EMI measurements can be done now in real-time for a broad frequency range of several hundred Megahertz. This paper presents advanced strategies with real-time capability f...     »