A method of asymmetric projectors and an algorithm of ''mixed'' spectr
a separation to ''pure'' ones were developed. A notion of generalized
spectral indexes (i.e. a new space of spectral features), eliminating
the intereffect of parameters characterizing the state of different na
tural formations, was proposed. An example of the algorithm applicatio
n was given. The algorithm efficiency was compared with the known kaut
h-Thomas transfrom.