The applicability of principal component analysis to the separation of multiple plane-wave signals

Autor:	Z. A. Der, E. A. Flinn
Rok vydání:	1975
Předmět:	Geophysics Amplitude Geochemistry and Petrology Acoustics Principal component analysis Separation (aeronautics) Plane wave Electronic engineering Seismogram Signal Mathematics
Zdroj:	Bulletin of the Seismological Society of America. 65:627-635
ISSN:	1943-3573 0037-1106
DOI:	10.1785/bssa0650030627
Popis:	It is shown that principal component analysis (eigenvector-eigenvalue decomposition of array spectral matrices) can be used for the approximate separation of superposed plane-wave signals only if at least one of the following conditions is satisfied: 1. (a) The signals are grossly unequal in amplitude. 2. (b) The directions and the velocities of the various signals are such that if the array is beamed at a given signal the other signals do not fall on prominent sidelobes of the array response. Application of the method for such cases is demonstrated on composited long-period seismograms using recordings from the D ring and center element of ASA.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0935ab224b2e1352527ab5a23f795231 https://doi.org/10.1785/bssa0650030627 Zobrazit plný text záznamu