[en] A technique has been developed by which ground-based measurements made by the Chatanika radar can be used to determine the energy distribution of the incident auroral electrons. An altitude profile of electron density is deconvolved into an incident energy spectrum by use of a library of ionization production profiles for monoenergetic electrons. The accuracy of the method has been assessed by application to synthetic ionization profiles produced by known electron energy distributions. Results indicate that the incident energy distribution can be recovered with high precision (deviations typically < 25%) for incident energies between 1 and 12 keV. The method has been applied to several density profiles obtained at Chatanika during auroral activity. (Auth.)