1,721,162 research outputs found
Statistics and EMC
No full textIn this paper, applications of statistics to electromagnetic-compatibility (EMC) investigations are reviewed. The description covers both prediction and experimental aspects, and includes well-established results as well as recently-developed models and techniques. The potential of using probabilistic and statistical modeling for EMC assessment is highlighted, especially where system complexity, partial unavailability of data, and randomness
of electromagnetic interference play a role
Measuring Induced Currents on a CAN Bus
No full textA device for measuring currents induced in a CAN bus harness. In some embodiments, the device includes a first termination node, a second termination node, a current separator, a detection circuit, and a power source circuit. The current separator circuit has an RF transformer connected to the first termination node and separates a common mode RF current and a differential mode RF current of an RF current signal. The detection circuit is connected to the current separator circuit and receives at least one of the common mode RF current and the differential mode RF current from the separator circuit. The detection circuit also converts the common mode RF current and differential mode RF current to an non-RF output signal. The power source circuit provides power to the detection circuit
Parametric analysis of vertical risers effects in randomly externally-excited transmission lines
No full textA bulk current injection test conforming to statistical properties of radiation-induced effects
No full textIn this paper, a bulk current injection (BCI) immunity test is designed that conforms to the effects induced in the equipment under test (EUT) by a radiated electromagnetic disturbance (EMD). This is done by adopting a statistical description of the EMD and by comparing currents induced by BCI and distributed field-coupling (i.e., radiation) in the input pins of the EUT. Closed-form results are obtained that enforce equivalence of the aforementioned test procedures in terms of specific statistical estimates (e.g., expected value and dispersion) as well as for worst-case
radiation-induced effects. A distributed-parameter circuit model of the system under test is adopted, composed by the EUT, auxiliary equipment (AE), and a wiring harness. In the analysis, the EMD is described via plane waves with random parameters and a uniform multiconductor transmission line model is used for the wiring harness. The EUT and AE are represented via lumped impedance
matrices. Injection-probe feeding-conditions assuring equivalence are derived analytically, and involve a frequency piecewise-linear profile of the RF voltage source. The proposed BCI immunity test overcomes practical-design difficulties of previous formulations
Final report (TN 4), POLIMI-TN-04, ESA Contract # 20913/07/NL/GLC, Ref. TEC-EEE/2007.164/JW
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A probabilistic model for the response of an electrically short two-conductor transmission line driven by a random plane wave field
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