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Polynomial Wigner–Ville distribution : ウィキペディア英語版 | Polynomial Wigner–Ville distribution
In signal processing, the polynomial Wigner–Ville distribution is a quasiprobability distribution that generalizes the Wigner distribution function. It was proposed by Boualem Boashash and Peter O'Shea in 1994. == Introduction ==
Many signals in nature and in engineering applications can be modeled as , where is a polynomial phase and . For example, it is important to detect signals of an arbitrary high-order polynomial phase. However, the conventional Wigner–Ville distribution have the limitation being based on the second-order statistics. Hence, the polynomial Wigner–Ville distribution was proposed as a generalized form of the conventional Wigner–Ville distribution, which is able to deal signals with nonlinear phase.
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