Kurtosis estimation method

The invention discloses a kurtosis estimation method, which relates to the field of signal processing and comprises the following steps: S1, acquiring an initial observation signal; s2, performing k-order accumulation on the initial observation signal; s3, according to a high-order cumulant projecti...

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Bibliographic Details
Main Authors NIU BAOLIANG, ZHU XUEWANG, WANG DONGSHENG, NING ZUOGUI, CHENG JIAJUN, LIU QINGLIN, FAN QINGHUI
Format Patent
LanguageChinese
English
Published 05.08.2022
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:The invention discloses a kurtosis estimation method, which relates to the field of signal processing and comprises the following steps: S1, acquiring an initial observation signal; s2, performing k-order accumulation on the initial observation signal; s3, according to a high-order cumulant projection theorem, obtaining a k'order cumulant of an output signal in the initial observation signal, wherein the k 'order cumulant is self-correlated with the k order cumulant; s4, solving a kurtosis estimated value K of the output signal; the projection property of high-order accumulation is combined with a linear non-Gaussian system identification method, so that second-order accumulation separation of actually measured non-Gaussian random vibration signals mixed with Gaussian noise interference can be realized; and after separation, high-precision kurtosis estimation of the output signal can be obtained by utilizing 4-order accumulation of the observation signal. 本发明公开了峭度估计方法，涉及信号处理领域，包括S1、获取初始观测信号；S2、初始观测信号进行k阶累积；S3
Bibliography:Application Number: CN202210215656