Am. Onishchenko et Ya. Onishchenko, CLASSIFICATION OF PAIRS OF SIGNALS ACCORDING TO INFORMATION-CONTENT, Russian journal of nondestructive testing, 32(11), 1996, pp. 892-901
For a pair of ellipses on a plane, specified as normal two-dimensional
sets, we introduce invariants depending on the coefficients of the co
variance matrices of the ellipses. We determine the information conten
t of a pair of signals whose dispersion ellipses do not intersect and
are located outside of each other.