METHOD OF FORMING ERROR PARAMETERS IN RADIO-ELECTRONIC CONTROL SYSTEM OF AIR-TO-AIR MISSILE AT ITS SELF-HOMING TO HELICOPTER WITH VARIOUS FLIGHT TYPE THEREOF Russian patent published in 2020 - IPC F41G7/22 G01S13/52 

FIELD: physics; rocket equipment.

SUBSTANCE: invention relates to radio-electronic control systems (RECS) by aircraft and can be used for homing of air-to-air missile to helicopter at various nature of its flight with corresponding dynamics. Method of mismatch parameters formation in RECS with air-to-air missile at its self-homing to helicopter at various flight character, consists in the fact that in the missile radar homing (MRH) angle meter of the missile the angular velocity of rotation of the sighting line missile-helicopter is evaluated, evaluation of helicopter bearings, there determined are increments of angular rotation speeds of the line of sight missile-helicopter, caused by helicopter maneuver in horizontal and vertical planes respectively, using the accelerometer, the missile's own accelerations in the horizontal and vertical planes are measured. In the MRH auto-speed selector parallel in each optimal Kalman filter of their matrix, the helicopter is tracked along the range and Doppler frequency at various a priori data, received during filtration in each optimum Kalman filter relative to m^th character of helicopter flight and appropriate for each flight character of j^th version of flight dynamics. At that, according to the rows of the matrix of the optimal filters there are filters, in which the a priori information is the dynamic models for various hypotheses regarding the m^th character of the helicopter flight, and on columns - filters with dynamic models for various hypotheses relative to j^th versions of flight dynamics of helicopter with its corresponding m^th nature of flight, by Chi-square Pearson criterion is estimate m̂^th character of helicopter flight, and by criterion of minimum of general dispersion of real filtration errors is estimate ĵ^th version of flight dynamics of helicopter for estimated value m̂^th nature of flight.

EFFECT: formation of mismatch parameters in the RECS with an air-to-air missile, which enable self-guidance of the missile to the helicopter with different flight characteristics (stationary flight, flight with acceleration, flight with braking and flight in hovering mode).

1 cl, 1 dwg