Wigner-Ville distribution analysis method of fractionallower-order alpha stable distribution
α稳定分布下信号的维格纳分布分析方法

It is not enough that only using a dimension analysis method for non-stable signal in alpha stable distribution noise, and it can need a two-dimensions time-frequency one. In the analysis of the existing time-frequency analyzing method, it found that the signal of background noise was assumed Gaussian distribution, so the performance of the time-frequency domain analysis for signal of noise in such non-Gaussian distribution as FLOA was in severe degradation. Focus on this problem, this paper proposed a novel Wigner-Ville distribution analysis method of fractional lower-order alpha stable distribution based on conventional Wigner-Ville distribution. Simulations show that the proposed method has more excellent performance than conventional Wigner-Ville distribution in time-frequency analyzing of alpha stable distribution process and is a new one in time-frequency domain research of alpha stable distribution.