METHOD FOR DETERMINATION OF OBJECT SPATIAL ATTITUDE Russian patent published in 2006 - IPC G01S1/08 H04B7/185 

FIELD: radio direction-finding, in particular, systems providing determination of the spatial attitude of an object, for example, a flight vehicle, and azimuth and angular altitude directions to the respective beacon.

SUBSTANCE: the system has functionally coupled beacon transmitter, on-board receiving system of electromagnetic signals, range, azimuth, angular altitude finders. The on-board receiving system of electromagnetic signals has an antenna device made in the form of two antennas installed opposite each other, with the rear bases facing each other, symmetrically relative to the plane parallel with the plane tied with the object. The antenna of the antenna device is made in the form of a body that is transparent for electromagnetic signals of a material with a high relative dielectric permeability 5 and the receiving element positioned in the material and connected to unit Б for determination of the level of the received radiation and its change at a change of the object attitude. The antenna is fastened on the object so that the angle between the longitudinal axes of the antenna and object would provide a high change of the reflection coefficient of the radiation from the antenna at a change of the direction of the object motion by an angle mainly not exceeding one degree, and units Б of both antennas are functionally connected via the unit of comparison of the levels of the radiations received by the antennas with the determinants of azimuth and/or angular altitude. For determination of the azimuth and/or angular altitude directions to the respective beacon the transmitter of the beacon and the on-board receiving system are made with provision, respectively, of transmission and reception of electromagnetic signals plane polarized in the horizontal and/or vertical planes.

EFFECT: enhanced accuracy of determination of the object location in space irrespective of the weather conditions due to the enhanced accuracy of determination of the azimuth and angular altitude directions to the respective beacon, absence of a false bearing, enhanced safety of object motion, for example, at landing, reduced mass and dimensional characteristics of the respective on-board equipment, enhanced technical-economic efficiency.

11 cl, 8 dwg