RU2801788C1 - Method for functioning of opto-electronic guidance coordinator under optical radiation effects - Google Patents

Abstract

FIELD: fire destruction of objects with guided munitions.

SUBSTANCE: method to ensure the functioning of the optical-electronic coordinator (OEC) of guidance under the influence of optical radiation is that they optical radiation of the OEC target of a homing ammunition (HA) is received. The parameters of the output signals of the photodetector (FD) of the HA OEC are measured and the parameters of the angular mismatch of the direction of flight of the HA and the direction to the target are determined from their values. According to their values, the flight path of the HA to the target is corrected. The selection of the K-th part of the incident optical flow is carried out in the OEC. The K-th part of the incident optical flow is directed to the additionally installed position-sensitive OEC FD. When signals appear at the output of the position-sensitive FD, the main FD of the OEC HA is turned off. The parameters of the output signals of the position-sensitive FD of the OEC HA are measured. According to their values, the parameters of the angular mismatch of the flight direction of the HA and the direction to the target are determined, and the trajectory of the flight of the HA to the target is corrected.

EFFECT: increased efficiency of HA use.

1 cl, 2 dwg

Description

The invention relates to weapons, in particular to systems of fire destruction of objects with guided munitions.

A known method of targeting a homing munition (SNBP) [see, for example, 2, pp. 165-169], based on the reception of optical radiation of the target by the optical-electronic coordinator (OEC) of the SNBP, measuring the output signals of the photodetector of the optical radiation of the target of the OEC SNBP, determining by their values of the parameters of the angular mismatch of the flight direction of the SNBP and the direction to the target, the correction of the trajectory of the flight of the SNBP to the target according to their values. The disadvantage of this method is the high probability of failure of guidance SNBP when exposed to damaging optical (laser) radiation (POI), leading to loss of efficiency of the OEC.

The technical result to which the present invention is directed is to increase the efficiency of the use of SNBP.

The technical result is achieved by the fact that in a known method for ensuring the functioning of the OEC guidance under conditions of exposure to optical radiation, based on receiving optical radiation from the target of the OEC SNBP, measuring the parameters of the output signals of the photodetector (FP) of the OEC SNBP, determining from their values the parameters of the angular mismatch of the direction of flight of the SNBP and directions to the target, adjusting the flight path of the SNBP to the target according to their values, the K-th part of the incident optical flow is selected in the OEC, where K=F _thr /F _rev , F _thr is the specified threshold power of the optical flow at which optical radiation damage occurs of the main FP of the OEC, F _det - the specified threshold power of the flow at the input of the position-sensitive FP (PSFP), at which the part of the optical flow that characterizes the damaging effect of optical radiation on the main FP of the OEC is detected, direct the K-th part of the incident optical flow to the additional established by the FCFP of the OEC, when signals appear at the output of the FCFP, the main FP of the OEC of the SNBP is turned off, the parameters of the output signals of the FCFP of the OEC of the SNBP are measured, the parameters of the angular mismatch of the direction of flight of the SNBP and the direction to the target are determined from their values, and the trajectory of the flight of the SNBP to the target is corrected.

The essence of the method lies in providing SNBP guidance under conditions of use by the object for its protection of sources of POI by means of a coordinate analysis of a part of POI by an additional PCF of the OEC.

The defeat of objects can be carried out by SNBP using for guidance the reflected laser radiation of the illumination of the object or the optical radiation of the object itself [see, for example, 1, pp. 165-169]. To protect against SNBP, the facility includes various defense systems, including those using PPI to influence the OEC of SNBP [see, for example, 2, pp. 36-37, 3, 4]. The requirement for accurate spatial coordination of the direction of propagation of the POI and the field of view of the OEC determines the placement of the laser exposure complex (CLV) on the protected object itself [see, for example, 2, pp. 39, 5]. Placement of the CLV on the protected object itself can provide guidance of the SNBP to the target by using the spatial parameters of the POI. Due to the design features in the OEC, the FP is the most vulnerable element to the impact of the POI. Therefore, in the interests of ensuring the guidance of the SNBP in the conditions of the use by the object for the protection of the CLV, it is proposed to carry out a coordinate analysis of a part of the POI with an additional FSFP.

The figure 1 shows a diagram explaining the essence of the method (where the following designations are accepted: 1 - target-object of destruction; 2 - KLV, 3 - SNBP; 4 - OEK SNBP; 5.7 - main FP and additional PChFP OEK; 6 - processing unit and control of the OEK; 8 - element of selection of a part of the POI flow; 9 - SNBP steering system; 10 - POI.

In accordance with the scheme, the procedure in the proposed method is as follows. SNBP 3, using OEK 4, receives the optical radiation of the target-object of destruction 1. The KLV 2 is included in the composition of the object of destruction 1. KLV 2 detects it 3 by optical radiation of the engine or body of the SNBP 3, carries out the location module refines the spatial coordinates of the SNBP 3, directs the striking module and radiates in the direction of SNBP 3 POI 10. Part of the stream POI 10 is selected by the selection element 8 and sent to the PCFP 7. In this case, the value of the selection of POI 10 is determined by the ratio K=F _thr /F _det , F _thr is the specified threshold power of the POI flow, with which the defeat of the FP 5 of the OEC 4 occurs, F _det - the specified pore power of the flow at the inlet of the PSFP 7, at which there is a stable detection of the part of the POI 10, which characterizes the damaging effect of the POI 10 on the main FP 5. The value of the proportionality of the shared flows can be determined by the ratio of the sensitivity of the PSFP 7 to the radiation resistance of FP 5 (element OEC 4 with the minimum value of the radiation resistance). When signals appear at the output of the PCFP 7, through the processing and control unit 6, the main PC 5 is disconnected from the formation of control signals for the steering system SNBP 9. Next, the parameters of the output signals of the PCFP 7 are measured, according to their values, the processing and control unit 6 controls the steering system SNBP 9.

Figure 2 shows a block diagram of a device with which the method can be implemented. The block diagram of the device contains: an optical radiation flux divider in a given proportionality 11 (other designations correspond to figure 1).

The device works as follows. The optical radiation 10 is divided by the flow divider in a given proportionality 11 into two streams, the smaller of which is sent to the PCFP 7. According to the values of the output signals of the FP 5 and 7, the processing and control unit 6 further controls the SNBP.

Thus, due to the coordinate analysis of a part of the POI by an additional PPPP in the structure of the OEK, the proposed method has the properties of increasing the efficiency of the use of SNBP, ensuring its guidance under the conditions of use by the object to protect its sources of POI. Thus, the method proposed by the authors eliminates the disadvantages of the prototype.

The proposed technical solution is new, since from publicly available information there is no known method for ensuring the operation of the OEC guidance under the influence of optical radiation, based on the reception of optical radiation of the target of the OEC SNBP, measuring the parameters of the output signals of the FP OEC SNBP, determining from their values the parameters of the angular mismatch of the direction of flight of the SNBP and direction to the target, adjusting the SNBP flight trajectory to the target according to their values, selecting the K-th part of the incident optical flow in the OEC, where K=F _thr /F _rev , F _thr is the specified threshold power of the optical flow at which damage occurs by optical radiation main FP OEC, Ф _def - the specified threshold power of the pore flow at the input of the PCFP, at which there is a stable detection of a part of the optical flow that characterizes the damaging effect of optical radiation on the main FP OEC, the direction of the K-th part of the incident optical flow to the additionally installed PCFP OEC, at the appearance of signals at the output of the FCFP, turning off the main FP of the OEC SNBP, measuring the parameters of the output signals of the FCFP of the OEC SNBP, determining the parameters of the angular mismatch of the direction of flight of the SNBP and the direction to the target, and adjusting the flight path of the SNBP to the target.

The proposed technical solution is practically applicable, since typical optical and electrical components and devices can be used for its implementation.

Information sources

1. Lazarev L.P. Optoelectronic guidance devices. M.: Mashinostroeniya, 1989. 512 p.

2. Baloev V.A., Ilyin G.I., Ovsyannikov V.A. Efficiency, noise immunity and noise immunity of specific optoelectronic systems. Kazan: KSTU, 2015. 424 p.

3. Shentsev N.I., Yutilov E.N. On the possibility of using laser weapons to solve air defense problems / N.I. Shentsev, E.N. Yutilov // Strategic stability. - 2010. - No. 1 (50). - S. 31 - 39.

4. Kuleshov P.E., Glushkov A.N., Marchenko A.V. Classification of technical methods (methods) for protecting optical-electronic means from a laser complex of functional damage // Aerospace Forces. Theory and practice. 2019. No. 10. pp. 72-80 [Electronic resource]. Access mode: http://academy-vvs.ru/editions/VKS/zhumal_vks/10-2019/72-80.pdf (accessed 05.10.2022).

5. Pat. No. 2593522, Russian Federation, G01S 17/66. A method of counteracting guided munitions / Koziratsky Yu.L., Kuleshov P.E., Dontsov A.A. and etc.; applicant and patent holder VUNTS VVS “VVA named after Professor N.E. Zhukovsky and Yu.A. Gagarin" (Voronezh). No. 2015110384; dec. 03/23/2015; publ. 08/10/2016, Bull. No. 22.

Claims (1)

A method for ensuring the operation of an optoelectronic guidance coordinator under conditions of exposure to optical radiation, which consists in receiving optical radiation from a target by an optoelectronic coordinator of a homing ammunition, measuring the parameters of the output signals of a photodetector of an optoelectronic coordinator of a homing ammunition, determining from their values the parameters of the angular mismatch of the direction of flight of a homing ammunition and direction to the target, adjusting the flight path of the homing ammunition to the target according to their values, characterized in that the selection of the K-th part of the incident optical flow is carried out in the optoelectronic coordinator, where K=F _thr /F _rev , F _thr is the specified threshold power of the optical flow, at which the main photodetector of the optoelectronic coordinator is damaged by optical radiation, Ф _det - the specified threshold power of the flow at the input of the position-sensitive photodetector, at which the part of the optical flow that characterizes the damaging effect of optical radiation on the main photodetector of the optoelectronic coordinator, direct the K-th part of the incident optical flow to the additionally installed position-sensitive photodetector of the optoelectronic coordinator, when signals appear at the output of the position-sensitive photodetector, the main photodetector of the optoelectronic coordinator of the homing ammunition is turned off, the parameters of the output signals of the position-sensitive photodetector of the optical -electronic coordinator of the homing munition, their values determine the parameters of the angular mismatch between the direction of flight of the homing munition and the direction to the target and correct the flight path of the homing munition to the target.

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