摘要
本文采用自回归谱分析结合改进周期图检验方法,建立表面粗糙度的混合谱模型,以分离其中表现为离散谱的确定性谐波成分和表现为连续谱的随机性成分,并在此基础上提出综合评定表面粗糙度各种参数的方法。同时,对AR模型的阶数与谐波成分识别给出较为有效的经验判定方法。
This paper presents a mixed spectral model of surface roughness,making use of modified periodogram test combined with AR spectral analysis,to separate its deterministic harmonic components described as discrete spectra and stochastic components described as continuous spectrum.Based on this model,a synthetical evaluation method of surface roughness parameters is presented.And some successful empirical methods for determining the order of AR model and identifying the harmonic components are also presented.
出处
《计量学报》
CSCD
1991年第1期7-15,共9页
Acta Metrologica Sinica
