FIELD: physics.
SUBSTANCE: method for photonic location of an aerial object is characterised by using a ultraviolet (UV) detector to detect photon radiation of the aerial object, processing the received signal in the UV detector and then in a computer, and determining spatial coordinates of said aerial object at the corresponding moment of a universal time system (UTS), wherein tying to a unified coordinate system and the UTS is carried out with a local control-correction station (LCCS) which, besides photon radiation of the aerial object, also receives from navigation satellites of active global navigation systems periodic radio messages containing codes of current values of the UTS at the moment of emission of the radio messages by the corresponding navigation satellites, as well as data for accurate calculation of dislocation coordinates of the LCCS and the UV detector included therein, which are processed by a group of satellite receivers and the LCCS computer, characterised by that detection of photon radiation of the aerial object, sources of which are regions of ionisation of gases near the nose and the nozzle of the moving aerial object, is carried out using a first and a second group of UV detectors, arranged respectively on first and second masts vertically synchronous and in-phase mechanically rotating about their axes in the azimuthal plane, spaced from each other by a base distance, wherein using each group of UV detectors, detection of photon radiation of the aerial object at each given moment in time is carried out from all directions of the 90-degree elevation plane through uniform distribution of optical axes of the UV detectors of each group by said 90 degrees with a narrow beam pattern of the UV detectors in the azimuthal plane, and through rotation of the mast at each 360-degree view - successively for all directions of the 180-degree elevation angle, radiation received by each group of UV detectors is converted in each UV detector to a digital code, and then recorded in computer memory separately for each mast in an orderly manner for each detection radiation while recording the obtained azimuthal angle and elevation angle, wherein the azimuthal angle at each mast is calculated at the middle of the sector of the continuously received radiation, formed as result of turning the mast, and the elevation angle at each mast is calculated at the middle of the sector of radiation continuously received by a corresponding set of adjacent UV detectors, the obtained azimuth and elevation angles for each radiation for each mast are simultaneously recorded in computer memory with corresponding UTS readings and range and altitude values calculated from the obtained angles, after which for the current view, the separately obtained readings for each mast for common angle features thereof, range and altitude are identified at specific coordinates of specific detected aerial objects, which are corrected at the next views based on features of the corrected angles, range and altitude of the aerial object, as well as an additional common feature of velocity, manoeuvre and direction of the aerial object.
EFFECT: providing passive location of aerial objects without on-board UV transmitters, by receiving and processing weak photon radiation from the nose and tail parts of the moving aerial objects using two spaced apart groups of UV detectors synchronously scanning space.
4 cl, 3 dwg
