FIELD: homing systems of movable carriers.
SUBSTANCE: signals are formed that are proportional to the projections of the vector of the phantom linear acceleration and the projections of the vector of the absolute turning speed of the vector (line) of target sighting to the respective co-ordinate axes of the base antenna co-ordinate system. with the aid of the obtained signals with regard to the original information of assignment of the target or/and object of sighting and initial conditions of alignment of the inertial measurement of the parameters of the sighting vector determined are the signals proportional to the current values of the target sighting vector, i.e. the projections of the vector of the absolute linear speed of closure of the movable carrier with the target to the respective co-ordinate axes of the base antenna co-ordinate system, slant range of closure of the movable carrier to the target, components of the space angular target co-ordinate in the base antenna co-ordinate system, guide cosines of the mutual attitude of the base antenna co-ordinate system and the reference geocentric co-ordinate system linked by its, co-ordinate axis to the stationary target of/and to the sighting object located, for example, on the earth surface. At an absence of the location contact with the target or/and with the sighting object the obtained signals are converted to the stabilization signals of the movable carrier from its oscillations relative to its center of masses in the horizontal plane, in the vertical plane and in rolling, as well as to the homing signals of the movable carrier to the target proportional to the g-loads. At a search of the sighting object and at its tracking signals are formed in the main or built-in short-wave wave radiation chamber that are proportional to the components of the space angular co-ordinate of the sighting object and the slant range to the sighting object in the antenna co-ordinate system. An this case signals are determined that are proportional to the parameters of the trajectory fluctuations and the deforming actions of the movable carrier body an the spatial attitude of the antenna phase center relative to the target or/and the sighting object. With the use of these signals a signal is formed that is proportional to the phase of the reference function being the function of the module of the target sighting or/and object sighting vector in the shifted co-ordinate system, i.e. the slant range to the target or/and sighting object. An this case the position of the shifted co-ordinate system is determined by the shift vector of the antenna phase center or/and of the center of radiation of antenna sounding signals relative to the center of intersection of the axes of sensitivity of measurement of the projections of the phantom linear acceleration and the projections of the vector of the absolute angular turning speed of the target (line) sighting and/or sighting object vector in the process of the inertia measurement of the parameters of the target sighting vector, and/or sighting object vector. With the use of the obtained signal that is proportional to the phase of the reference function the signal is determined that is proportional to the phase correction compensating in the received signals reflected from the radiated sighting object for the trajectory instability of the antenna phase center and the deforming actions of the movable carrier body. At an automatic tracking of the sighting object in the direction and range compared are the formed signals proportional to the current parameters of the target sighting vector in the base antenna co-ordinate system in accordance with the identical signals of automatic tracking of the sighting object in the direction and in the range in thus co-ordinate system. Then, accomplished is the optimal adaptive jamproof filtration of the respective comparison signals, and signals proportional to the precise estimations of the respective comparison signals are formed. The signals proportional to the precise estimation are used for correction of the signals proportional to the respective current values of the target sighting vector parameters. These signals are used for turning the vector of sighting in the tilt angle and azimuth relative to movable carrier body up to its matching with the direction to the sighting object, and at an automatic tracking of the sighting object signals are formed that are proportional to the slant range and the rate of closure of the movable carrier to the sighting object. Besides, simultaneously formed are signals that are proportional to the rate of change respectively of the sighting angles of the sighting object in the horizontal and vertical planes in the horizontal co-ordinate system. With the use of the obtained data formed are the signals of stabilization of the movable carrier against its oscillations relative to the center of masses in the horizontal plane, vertical plane and rolling, as well as the homing signals of the movable carrier proportional to the g-loads respectively in the horizontal and vertical planes.
EFFECT: enhanced accuracy, linear and angular resolving power, homing noise immunity, at the same time enhanced antijam capability and dynamic accuracy of tracking of the sighting object in direction and range.
2 cl, 6 dwg
