title: Techniques for deriving Doppler temperatures from multiple-line Fabry-Perot profiles: an analysis.
abstract: Two techniques for recovery of the Doppler temperature from Fabry-Perot spectrometer observations of multiple-line profiles are tested. A direct fit of a modeled profile to the data is found to produce more consistent results and is less sensitive to noise than the method of least-squares fitting to low-order Fourier-transform coefficients derived from the data. This result is unexpected since the Fouriertransform method permits the reduction of noise by truncating the series of coefficients used to determine the temperature.
authors.forename: J F
authors.initials: JF
authors.lastname: Conner
authors.forename: R W
authors.initials: RW
authors.lastname: Smith
authors.forename: G
authors.initials: G
authors.lastname: Hernandez