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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...
Permutations of order N are generated using polynomials in a Galois field GF(q) where q ges N+1, which can be written as a linear transformation on a vector of polynomial coefficients. The Lempel and Golomb methods for generating Costas arrays of order q-2 are shown to be very simple examples. The generating polynomial for Costas arrays is examined to form an existence theorem for Costas arrays and...
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