METHOD TO INCREASE ACCURACY OF APPROXIMATION DURING EXTRACTION OF USEFUL SIGNAL UNDER CONDITIONS OF PRIOR UNCERTAINTY AND DEVICE THAT IMPLEMENTS IT Russian patent published in 2015 - IPC G06F17/00 

FIELD: instrumentation.

SUBSTANCE: initial realisation of a non-stationary random signal is broken into intervals of random length and approximated on each of them with a polynom of the second degree, thus signal evaluation is generated at the specified breakdown, multiple formation of breakdowns of initial realisation of a non-stationary signal into intervals of random length makes it possible to produce multiple evaluations in each of its cross section, by averaging which a resulting evaluation is generated, and during approximation at each interval of breakdown of the initial realisation of the non-stationary random signal detection is carried out, and the effect of "turning" of the approximated function is eliminated by means of error reflection of values of the approximating function from the 1st quarter of the Cartesian coordinate system into the 3rd quarter of the Cartesian coordinate system.

EFFECT: increased accuracy of approximation during extraction of a useful signal under conditions of prior uncertainty.

2 cl, 4 dwg