Title:
NONUNIFORM SAMPLING FOR SPECTRAL AND RELATED APPLICATIONS
Document Type and Number:
WIPO Patent Application WO1999018520
Kind Code:
B1
Abstract:
A method for deriving a spectrum of a substance in such a manner as to enhance a specified characteristic of the spectrum. Irregular intervals are chosen in the signal domain for sampling the signal. The irregular intervals may be randomly spaced. The signal is sampled at the irregular intervals and transformed into the transform domain through application of a transform algorithm, such as a fast orthogonal search, capable of accommodating an irregularly sampled signal. Interferometric spectrometers having parallel optical paths with irregularly spaced phase delays are provided for the practice of the claimed method.
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Inventors:
KORENBERG MICHAEL J
BRENAN COLIN J H
HUNTER IAN W
BRENAN COLIN J H
HUNTER IAN W
Application Number:
PCT/US1998/020967
Publication Date:
May 27, 1999
Filing Date:
October 06, 1998
Export Citation:
Assignee:
MASSACHUSETTS INST TECHNOLOGY (US)
International Classes:
G01J3/453; G01J9/02; (IPC1-7): G06F17/10; G01J3/453; G01R23/16; G06E3/00
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