Provider: ingentaconnect
Database: ingentaconnect
Content: application/x-research-info-systems
TY - ABST
AU - Keefe, C. Dale
AU - Comisarow, Melvin B.
TI - Exact Interpolation of Apodized, Magnitude-Mode Fourier Transform Spectra
JO - Applied Spectroscopy
PY - 1989-05-01T00:00:00///
VL - 43
IS - 4
SP - 605
EP - 607
KW - Computer applications
KW - Instrumentation, Fourier transform
N2 - A procedure is developed for the *exact* interpolation of apodized, magnitude-mode Fourier transform (FT) spectra. The procedure gives the true center frequency, i.e., the location of the *continuous* peak, from just the largest three discrete intensities in the *discrete*
magnitude spectrum. The procedure is applicable for the peaks in the apodized magnitude spectrum of time signal of the form *f*(*t*) = cos(ω*t*) exp(–*t*/τ). There are *no* restrictions on the value of the damping ratio *T*/τ. The procedure
is demonstrated for the sine-bell and Hanning windows and is gener-alizable to other windows which consist of a sum of constants and sine/cosine terms. This includes the majority of commonly used windows.
UR - http://www.ingentaconnect.com/content/sas/sas/1989/00000043/00000004/art00003
M3 - doi:10.1366/0003702894202418
UR - http://dx.doi.org/10.1366/0003702894202418
ER -