Band-Limited, White Gaussian Noise Excitation for Reverberation Chambers andApplications to Radiated Susceptibility Testing

摘要

The report gives the results of demonstration tests conducted to (1) evaluate theelectromagnetic environment (EME) produced by band-limited, white gaussian noise (BLWGN) excitation of a reverberation chamber and to verify its applications to susceptibility and shielding effectiveness (SE) testing. Data were collected to compare the EME produced in a reverberation chamber by CW and swept frequency excitation using both mechanical stirring and BLWGN to excite the cavity mode structure. The feasibility of using the BLWGN technique for radiated susceptibility testing was evaluated by comparison with mechanical stirring in a reverberation chamber and with anechoic chamber results. Within normal measurement uncertainties, the response of both types of systems were the same for mechanical stirring and for BLWGN excitation and were consistent with the results obtained in the anechoic chamber.