| 摘要 |
A spectrometer producing spectra with improved S/N. The spectrometer has: accumulation means for performing a measurement to obtain a data set containing N data points, repeating the measurement M times to obtain M spectral data sets or time-domain data sets S1 (d1 to dN) to SM (d1 to dN), and accumulating the M spectral data sets or time-domain data sets; means for creating sets S1 (dn) to SM (dn) of the data points contained in the M spectral data sets or time-domain data sets S1 (d1 to dN) to SM (d1 to dN) such that the data points of each one of the sets S1 (dn) to SM (dn) have the same ordinal number dn; correlation computing means for finding correlations between the sets S1 (dn) to SM(dn) to thereby find a correlation data set C(c1 to cN) indicating correlation strengths about the data points of the ordinal numbers; and computing means for finding either the product of an accumulated or anticipated spectrum having the N data points and obtained from the accumulation means or of a time-domain data set Sav(d1 to dN) and the correlation data set C(c1 to cN). |
