A method for resolving individual bands in absorption spectra

A new algorithm for resolving individual bands in absorption spectra is developed. It is assumed that the spectrum consists of absorption bands with halfwidths determined by different kinds of interactions—specific and nonspecific. The method has good accuracy in the case of the strong overlap of bands (the ratio of the distance between maxima of the peaks to the halfwidth is less than 0.2) and a high computational efficiency. Arkhangelsk State Technical University, 17, Naberezhnaya Severnoi Dviny, Arkhangelsk, 163007, Russia. Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 64, No. 3, pp. 400–404, May–June, 1997.     

Reflection spectra of natural objects and calibration of spectral devices

Procedures for laboratory and orbital calibration of spectrometers in the visible and near-infrared regions of the spectrum are described. Methods for allowing for atmospheric transmission and procedures of passive remote sensing of atmospheric aerosols are proposed. It is shown that methods of structure analysis of spectral data can be used to determine biological parameters of lake water and leaves. A. N. Sevchenko Research Institute of Applied Physical Problems, Belarusian State University, 7, Kurchatov St., Minsk, 220064, Belarus. Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 65, No. 2, pp. 269–277, March–April, 1998.