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Method for photonic location of aerial object

Method for photonic location of aerial object
IPC classes for russian patent Method for photonic location of aerial object (RU 2497079):
G01C21/24 - specially adapted for cosmonautical navigation
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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.

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The invention relates to the field of detection of air targets, as well as to the areas of automated control systems and processing, optics, satellite navigation and computer engineering and can be used for automated detection and tracking.

Widely known method of radiolocation IN (Dictionary of ham, M., "Energy", 1966, str), characterized by the reception of waves, which allows to detect and track IN. The known method, despite the very wide use, has a number of disadvantages, which primarily include:

- a relatively large complexity and cost of the radar;

- the vulnerability of the fashion radar for military use, because, radiating radio, radar reveals his whereabouts;

the relatively low efficiency of the method of radiolocation in the face of many modern defenses (radioactive suppression spray masking substances and elements, coated IN special substances and materials that make IN invisible and others).

The closest to the technical nature of the claimed invention is a method described in the invention "Complexional universal weatherproof method for identifying and landing aircraft..." (patent is 2441203 IPC 7G01C 21/24 2010), including the location in space with the aid of ultraviolet receiver (UFP) of photon radiation IN the processing of the received signal in OFP, and then in the computer and the coordinates of the location IN space at the appropriate time common timing system (CTS), with reference to the common coordinate system and to the NORTH is carried out using local control and correction station (LCCS), receiving in addition to photon radiation IN using UFP from navigation satellites (NS) operating global navigation systems periodic radiopacity containing the IDs of the current values SOWING at the time of radiation of radiopodarok relevant NS, and the data for the exact calculation of the coordinates of the dislocation LCCS and its UFP, which are processed by a group of satellite receivers and transmitter LCKS.

The disadvantage of this method is the relatively small range detection and tracking IN the order of 10 km)that were dictated by the specific task of working near the runway and landing IN without using a special antenna means with the masts needed for more distant locations. But the most important thing is that the known method, oriented to receive relatively strong ultraviolet radiation from Bartova the ultraviolet transmitter, does not allow for passive location IN without such on-Board transmitters (and missile), and also when they are shutdown and malfunction.

In recent years a highly sensitive AFP (such receiving tube has the applicant of the present invention)that capture even single photons at a distance of 100 km from the source, allowing you to take on such distances relatively weak ultraviolet radiation from any moving IN generating such radiation from the nose and tail areas due to shock and temperature of the gas is ionized. However, with such a high sensitivity WFP and when such relatively large distances, the challenge is the selection of the useful signal in the multiple photon interference.

The technical result and the purpose of the invention is to enhance the functionality of the prototype, i.e. the provision of passive location, does not have on-Board UV transmitters, by receiving and processing weak photon radiation from the nose and tail parts moving IN with spaced apart two synchronously scanning the space groups UFP.

The technical result and the goal is achieved that the method of photon locations of air object (VO), characterized by the detection of ultravio etopim receiver (UFP) of photon radiation, the processing of the received signal in OFP, and then in the computer to determine a position IN space at the appropriate time common timing system (CTS), with reference to the common coordinate system and to the NORTH is carried out using local control and correction station (LCCS), receiving in addition to photon radiation IN using UFP from navigation satellites (NS) operating global navigation systems periodic radiopacity containing the IDs of the current values of the NORTH at the time of radiation of radiopodarok relevant NS, and the data for the exact calculation of the coordinates of the dislocation LCCS and its UFP that handled by a group of satellite receivers and transmitter LCCS, as well as the fact that the detection of photon radiation IN the source region of ionization of gases near the tip and nozzle moving IN, is performed using the first and second groups UFP placed respectively on the first and second vertical synchronous and in-phase mechanically rotating around its axis in the azimuthal plane poles spaced from each other on the base distance, and with each group UFP detection of photon radiation IN at any given time carried out from all directions 90 - degree elevation plane for MF is t uniform distribution the optical axes UFP each group at 90 degrees with a narrow directivity UFP in the azimuthal plane, and due to the rotation of the masts on each 360 - degree review - consistently from all directions 180 - degree elevation plane, take each group UFP radiation IN if any transform in each UFP into a digital code, and then recorded in the memory of the calculator separately for each mast arrangement for each of the detected radiation with the fixation of the obtained azimuth angle and elevation angle, and azimuth angle for each mast is calculated by the middle of the sector continuously received radiation generated as a result of rotation of the mast, and elevation for each mast is calculated by the middle of the sector continuously received radiation corresponding set of adjacent WFP simultaneously with the obtained angles of azimuth and place for each radiation for each mast in memory of the transmitter register corresponding data reference SOWING and calculated according to the obtained angles the values of the distance and height, then for the current review identified separately obtained counts for each mast on their General traits of angles, distance and height at specific coordinates of a particular detected IN, which are specified on the next and subsequent review on the grounds specified angles, distance and height, and also for appearing more General terms, speed, maneuver and directions on what to achieve.

In figure 1, 2 and 3 present, respectively, sketches, explain the operation of the process showing the main elements of the implementation aspects of the azimuthal and elevation planes.

The figures shows the first mast 1 with the first group OFP 2, the second mast 3 with the second group UFP 4, point 5 and 6 installation of the first and second masts and base 7 of them explode, 8, ultraviolet radiation 9, LCCS 10 with a transmitter 11, as well as additional theoretical point 12 and 13, forming in the azimuthal plane two similar right-angled triangle 5-12-6 and 5-8-13 (figure 2), and 14 and 15 forming the elevation plane of the two similar right-angled triangle 5-14-6 and 5-8-15.

Figure 2 shows the azimuthal angles X1 and x2 of rotation of the first group OFP 2 and the second group UFP 4, respectively, relative to base line 7 explode masts 1 and 3, and figure 3 is an elevation angles U1 and U2, respectively, between lines connecting AT 8 with UV P2 and 8 with UV A4, and the projections of these lines in the azimuthal plane.

The way the photon location of air object (IN) 8, characterized by ultraviolet detection receivers (UFP) 2 and 4 photon radiation 9 IN this, the processing of the received signal in OFP 2 and 4, and then the transmitter 11 LCCS 10 and determining the position IN space at the appropriate time common timing system (CTS), while binding to a single is the first coordinate system and to the NORTH is carried out using LCCS 10, receiving in addition to photon radiation from 9 IN 8 using OFP 2 and 4 from the navigation satellites (NS) operating global navigation systems (NS Fig. not shown, because it is beyond the scope of this application) periodic radiopacity containing the IDs of the current values of the NORTH at the time of radiation of radiopodarok relevant NS, and the data for the exact calculation of the coordinates of the dislocation LCCS 10 and its component OFP 2 and 4, which are processed by a group of satellite receivers and transmitter LCCS, and the fact that the detection of photon radiation from 9 IN 8, the sources of which are the regions of ionization of gases near the tip and nozzle moving IN 8, is performed using the first and second groups OFP 2 and 4, placed respectively on the first 1 and the second 3 vertical synchronous and in-phase mechanically rotating around their axes 5 and 6 in the azimuthal plane poles spaced from each other by a base length 7, and with the help of each group OFP 2 and 4 detection of photon radiation from 9 IN 8 in every the moment in time carried out from all directions 90 - degree elevation plane due to the uniform distribution of the optical axes UFP each group 2 and 4 at 90 degrees with a narrow directivity UFP in the azimuthal plane, and due to the rotation of the mast 1 and 3 on each 360 - degree is bore - consistently from all directions 180 - degree elevation plane, take each group OFP 2 and 4 photon radiation from 9 IN 8 if any transform in each UFP into a digital code, and then recorded in the memory of the computer 11 separately for each of the mast 1 and 3 orderly for each detected radiation 9 with fixing the obtained azimuthal angle X1 (x2) and angle U1 (U2), and azimuthal angle for each mast is calculated by the middle of the sector continuously received radiation 9, formed as a result of rotation of the mast 1 and 3, and elevation for each the mast is calculated by the middle of the sector continuously received radiation corresponding set of adjacent OFP 2 and 4, simultaneously with the received azimuth angles X1 (x2) and designated U1 (U2) for each radiation 9 for each of the mast 1 and 3 in the memory of the computer 11 register corresponding data reference SOWING and calculated according to the obtained angles the values of the distance and height, then for the current review identified separately obtained counts for each mast 1 and 3 according to their common characteristics of angles, distance and height at specific coordinates of a particular detected IN, which are specified on the next and subsequent reviews features refined angles, distance and height, and also for appearing more General terms, speed, maneuver, and eg is the exercise movement.

The method is as follows.

Suppose the rotation of the first 1 and second 3 mast placed on them, respectively, the first 2 and second 4 groups UFP (1, 2) is in the azimuthal plane (parallel to the earth surface) synchronously and in phase (at the same speed, in one direction, for example, one revolution/sec, in a clockwise direction and with the same initial reference azimuthal angles X1 and x2 from a straight line coincident with the base line 7) and let each mast 1 and 3 is set to 18 (n=18) narrow-angle 5-degree WFP covering together 90 degrees elevation plane (orthogonal to the azimuthal plane) by sequential shift pattern (or optical axis) of each adjacent WFP otnositelnoj the nearest 5 degrees. Let all UPP in the azimuthal plane are also 5-degree directional pattern.

Then by rotating masts 1 and 3 at the hit of the continuous radiation from 9 IN 8 in 5-degree sector of the perception of some UFP (first one group of 2 or 4, and then the other, depending on which side of the base 7 is IN 8, except sudaev, when 8 is on the base line 7, i.e. on the same azimuth) perceiving WFP convert parallel analog signal radiation 9 into digital form using an analog-to-digital Converter (ADC), four is irua on the output of each of the perceiver WFP pack related digital samples (typically 5-10 times, depending on the pattern WFP and speed of rotation of the mast 1 and 3), which are then recorded in the memory of the computer 11 separately for each of the mast 1 and 3 with fixation of the azimuthal angle X1 (x2) and simultaneously tilt N1 (N2), as in this example, when using 18 WFP, dispersed in the elevation plane, perceiving radiation 9 WFP indicate elevation U1 (U2). The azimuthal angle X1 (x2) for each of the mast 1 and 3 use a calculator 11 calculates in the middle of the sector continuously received radiation 9 - in the middle of the pack adjacent digital samples, and the angle designated U1 (U2) in the middle of the sector perceives radiation 9 together adjacent OFP 2 (4). Simultaneously with the obtained angles of azimuth and place on each mast 1 (3) separately for each radiation given IN 8 (for others IN the same way) when they register register counts the NORTH.

On the obtained angles in the transmitter 11 at a known distance of the base 7 and the known value of the angles XI and x2 calculated value IN a range of up to 8 point 5 and point 6, as well as its height. For a right triangle 5-12-6 through the cosine X1 and sinus X1 receive side 5-12 and 6-12, and then through the proportions of similar right-angled triangles 5-12-6 and 5-8-13 at a known angle x2 are determined by any side of the triangle 5-8-13, including side 5-8, representing a projection of the slant range to the azimuthal plane. Similarly, C is th the angles U1 and U2 and the value base 7, elevation plane determine the amount of cut 8-15, i.e. the height IN 8 and size 5-8, i.e. inclined IN the range of up to 8 from point 5. After that, for the current review (one complete revolution of the masts 1 and 3) identify separately the received samples for each mast on their General traits of angles, distance and height at specific coordinates of a particular detected IN 8, which are specified on the next and subsequent review on the grounds specified angles, distance and height, as well as additional signs of speed, maneuver and movement.

In order to reduce the number UFP in groups 2 and 4 is used on each mast m wide OFP 2 and 4, covering together 90 degrees in elevation, for example, two WFP (m=2) with the pattern every 45 degrees. Additionally, each mast 1 and 3 apply d narrow-angle WFP, for example, one 5-degree UFP (d=1), which activate at a specific azimuth detection radiation 9 specific wide-angle WFP, and activate in the appropriate 45-degree sector to Refine the angle designated by mechanical or electronic scanning narrow-angle UFP. The gain in value of the product (instead of n=18 is used only three UFP) at the expense of lengthening the processing time due to the need to clarify the values of the elevation angle.

For maximum gains in the time of reception and processing of radiation 9 (due to the substantial appreciation of the product) both groups OFP 2 and 4 are placed on the two hemispheres, ensuring the reception of radiation from all directions at once.

1. The way the photon location of air object (VO), characterized by ultraviolet detection receiver (UFP) of photon radiation, the processing of the received signal in OFP, and then in the computer to determine a position IN space at the appropriate time common timing system (CTS), with reference to the common coordinate system and to the NORTH is carried out using local control and correction station (LCCS), receiving in addition to photon radiation IN using UFP from navigation satellites (NS) operating global navigation systems periodic radiopacity containing the IDs of the current values of the NORTH at the time of radiation radiopodarok relevant NS, and the data for the exact calculation of the coordinates of the dislocation LCCS and its UFP, which are processed by a group of satellite receivers and transmitter LCCS, characterized in that the detection of photon radiation IN the source region of ionization of gases near the tip and nozzle moving IN, is performed using the first and second groups UFP placed respectively on the first and second vertical synchronous and in-phase mechanically rotating around its axis in the azimuthal plane poles spaced apart one from the other by a base length, moreover, with each group UFP detection of photon radiation IN at any given time carried out from all directions 90-degree elevation plane due to the uniform distribution of the optical axes UFP each group on these 90° with narrow directivity UFP in the azimuthal plane, and by rotating masts on each 360-degree review - consistently from all directions 180-degree elevation plane, take each group UFP radiation, if any transform in each UFP into a digital code, and then recorded in the memory of the calculator separately for each mast, for orderly each detected radiation with fixing the obtained azimuth angle and elevation angle, and azimuth angle for each mast is calculated by the middle of the sector continuously received radiation generated as a result of rotation of the mast, and elevation for each mast is calculated by the middle of the sector continuously received radiation corresponding set of adjacent WFP, simultaneously with the obtained angles of azimuth and place for each radiation for each mast in memory of the transmitter register corresponding data reference SOWING and calculated according to the obtained angles the values of the distance and height, then for the current review identified separately obtained atsche the s on each mast on their General traits of the corners, the distance and height at specific coordinates of a particular detected IN, which are specified on the next and subsequent review on the grounds specified angles, distance and height, and also for appearing more General terms, speed, maneuver and movement.

2. The method according to claim 1, characterized in that the detection of photon radiation IN the corner of the place is carried out using n narrow in the elevation plane WFP, each of which each mast is installed with a corresponding angular offset of 90°/n, for each detection of the source of photon radiation simultaneously determine the angles of azimuth and places, allowing rotation of the mast carried out with the greatest possible speed for mechanical systems rotation about one revolution per second.

3. The method according to claim 1, characterized because the detection of photon radiation IN the azimuth angles and locations is carried out by electronic scanning space by WFP distributed with the corresponding angular displacements of the elevation angles and azimuth and placed on the surfaces of the two hemispheres, associated respectively with the first and second masts.

4. The method according to claim 1, characterized in that the detection of photon radiation IN the exercise by each mast m UFP with wide angle directed the TEW, which together cover 90° elevation plane and d UPP with narrow-angle orientation of the overlapped by electronic or mechanical scanning 90° elevation angle and narrow-angle WFP activate upon detection of photon radiation at a specific azimuth angle to clarify the appropriate elevation angle.

 

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