METHOD FOR BALLISTIC TARGET RECOGNITION USING ESTIMATES OF FIRST AND SECOND RADIAL VELOCITY INCREMENTS Russian patent published in 2023 - IPC G01S13/58 

FIELD: radio detecting; ranging.

SUBSTANCE: in the claimed method, the vertical speed of the BT is determined according to the first and second radial velocity increments, range measurements r_av and radial velocity in the middle of the “sliding window”:

,

where T_s - scanning interval of the radar. Type of segment of the ballistic trajectory: the ascending and descending branches of the passive segment, the active segment and the manoeuvre segment are determined by comparing the sign of the vertical speed and estimating the first increment of the product of range and radial velocity . All estimates are determined by optimal weighted summation of samples of values and radial velocity in digital non-recursive filters.

EFFECT: increasing the probability of recognizing a ballistic target (BT) in dense layers of the atmosphere and determining the type of the trajectory section on which the BT is located.

1 cl, 3 dwg, 2 tbl