METHOD OF FILTERING OBJECT TRAJECTORY PARAMETRES AND DEVICE FOR REALISING SAID METHOD Russian patent published in 2010 - IPC G01S13/00 

FIELD: physics.

SUBSTANCE: invention is based on filtration using a "sliding smoothing" technique, involving measurement of the coordinate of the object, determination of the smoothed coordinate of the object, the smoothed value of acceleration of the coordinate of the object, the extrapolated value of the coordinate of the object, the extrapolated value of rate of change of the coordinate of the object, smoothing coefficients α, β, γ. During each measurement of the coordinate of the object, starting with the fourth measurement, the absolute value of deviation of the smoothed value of the coordinate of the object from its extrapolated value is determined, as well as the absolute value of deviation of the smoothed value of the rate of change of the coordinate of the object from its previous smoothed value and the absolute value of deviation of the smoothed value of acceleration of the coordinate of the object from its previous smoothed value, in accordance with which smoothing coefficients α, β, γ are determined.

EFFECT: reduced errors when filtering trajectory parametres of objects moving in accordance with a law which is not quadratic, with unequally discrete and unequally accurate measurement of parametres.

2 cl, 6 dwg