In this thesis , based on principal component analysis ( pca ) , covariance stationary processes and spectral analysis theory of linear operator , spectral principal component analysis ( spca ) is put forward 在主成分分析的基礎(chǔ)上,基于協(xié)方差平穩(wěn)過(guò)程理論和線性算子譜分析理論,本文提出了譜主成分分析。