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The paper presents an algorithm for parametric fault diagnosis of nonlinear analog circuits. A power supply current waveform IDD is used as an indicator of a device feature. A test signal is filtered using the discrete wavelet transformation, treated as a filter bank, to obtain a component of signal sensitive to changes of device parameters. Coefficients of the polynomial approximating the component...
We propose a method for diagnosis of parametric faults in analog circuits using polynomial coefficients of the circuit model. As a sequel to our recent work, where circuit response is modeled as polynomial for uncovering parametric faults in nonlinear circuits, we propose diagnosis of such faults using sensitivity of coefficients of the estimated polynomial to circuit parameters. The proposed method...
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