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A new method is proposed to estimate power line communication radiated EMI noise. By using the noise separation to extract common mode (CM) noise current, the radiated EMI noise can be estimated according to the relationship between the radiated EM field and the CM noise current. The experiment results show that the radiated EMI noise is decreased obviously, while the CM current is suppressed by using...
Two-current probes method and S-parameter method are studied comparatively for conductive EMI noise source modelling in this paper. Firstly, the basic theory of the two-current probes method and S-parameter method are introduced for noise source impedance extraction. Secondly, ZX and Zsetup are important intermediate results in the two methods, therefore their extractions are analyzed respectively...
A new approach to conducted EMI noise separation is presented for EMI noise diagnosis based on blind signal separation algorithm in cooperation with the use of current probes in time domain measurement. In this paper, firstly the principle of BSS is introduced and then, the implementation of BSS for conducted EMI noise separation is described in detail. Experiment results show that by using BSS algorithm,...
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