摘要
Thefinitedataestimatesofthecomplexfourth-ordermomentsofasignalconsistingofrandomharmonicsareanalyzed.Conditionsforthefourth-orderstationarityandergodicityareobtained.Explicitformulasfortheestimationerroranditsvariance,aswellastheirlimitinglargesamplevaluesarederived.Finally,aspecialcaserelevanttocubicphasecouplingisconsidered,andtheseresultsarestatedforthiscase,thevarianceisshowntocompriseanergodicandanonergodicpart.
出版日期
1996年03月13日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)