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1、时域分析相关参数1 n平均值mean :=_X.n1i=11 n整流平均值arv = _|%|ni=11 IL均方根X = _%2rms兀ii=1n峭度 arv = x4 /nX1i rms1 n2X =-rni=1峰值因子c=X . /Xpeak rms脉冲因子I=X . /xpeak arv波形因子s=X/x丫ms arv裕度因子L=Xpeak /rMatLab 中对应函数如:y二sin(x)%最大值%最小值%平均值%峰-峰值mx = max(y);mi = min(y);mn = mean(y);pk = ma-mi;av = mean(abs(y);%整流平均值vr = var(y);
2、%方差sd = std(y);%标准差ku = kurtosis(y);%峭度rm = rms(y);%均方根S = rm/av;%波形因子C = pk/rm;%峰值因子Kr = sum(y44)/sqrt(sum(y42);%峭度因子I = pk/av;%脉冲因子L = pk/Xr;%裕度因子Xr = mean(sqrt(abs(y)A2;附图两张:Sin0.5振帽,BOX05Pkd:01。信号:披形因子:1 11133裕度因子:3 44526时堪分析n/2tt/23n/22n时问泡最大佰;1.00000最 PS; I-1.0DQDO平均佰.;-C.OdOOO峰峰低;2.00000标准:主;靖度; 丫莎碍曲方根;0 ZQ&72峰値因子:2 82596lW度因子:辿遇4。脉冲因子:3 14500正弦信号的湛形Sne X)方差;D50QZ5频率0 70729Anssis :ClearCloseCos