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 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
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. |