Record Display for the EPA National Library Catalog

RECORD NUMBER: 481 OF 1401

OLS Field Name OLS Field Data
Main Title Fourier Encoded Data Searching of Infrared Spectra (FEDS/IRS).
Author Azarraga, L. V. ; Williams, R. R. ; de Haseth, J. A. ;
CORP Author Environmental Research Lab., Athens, GA.
Year Published 1981
Report Number EPA-600/J-81-144;
Stock Number PB82-132499
Additional Subjects Infrared spectroscopy ; Information retrieval ; Searching ; Library science ; Subject indexing ; Information systems ; Performance evaluation ; Comparison ; Reprints ; Fourier transform spectroscopy
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB82-132499 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 6p
Abstract
A new library searching technique is reported that relies on Fourier transforms of infrared (IR) absorbance spectra. Searching in the time domain is shown to be more tolerant to noise than searches in the spectral domain and fewer points are required to encode the unique characteristics of the individual spectrum. This decreases both search time and library storage requirements. Additionally, time domain classification of IR spectra is demonstrated and the possibility of indexing the library for a binary search is discussed.