RU2410710C2 - Method of protecting mobile devices from radio, radiolocation, optoelectronic reconnaissance equipment and weapons using composite decoy targets and apparatus for realising said method - Google Patents

Abstract

FIELD: physics, radio.

SUBSTANCE: invention relates to methods of protecting mobile communication equipment from reconnaissance equipment (radio, radiolocation, optoelectronic) and weapons. N composite decoy targets are set, which imitate mobile communication equipment and functioning thereof in an operation on the primary task by converting the created information message from the radio frequency range to an optical range for its transmission over a laser communication line to one of N(N>1) composite decoy targets. Laser radiation from the i-th composite decoy target is received and then converted back to a radio frequency signal and then retransmitted to the user, where if the i-th composite decoy target is destroyed, the source of laser radiation is redirected onto the j-th composite decoy target. Also, each composite decoy target enables reproduction of give-away signs of the mobile communication equipment in the infrared and radiolocation range, provides visibility of the camouflaged mobile communication equipment in the visible wavelength range by covering camouflage net with holding of the overall dimensions of the mobile communication equipment.

EFFECT: high durability of mobile communication equipment owing to simulation of give-away signs of an object in the radiolocation, visible and infrared range and avoiding detection and direction finding of emission of mobile communication equipment by reconnaissance equipment during operation on the primary task.

3 cl, 3 dwg

Description

The invention relates to methods for protecting mobile communications (MSS) from radio, radar, optoelectronic reconnaissance and destruction.

Among the ways to ensure the protection of radio-emitting objects from precision weapons, simulation methods using false targets (LC) are widespread. In this capacity, various radiation sources [1] and reflectors [2] are used.

A disadvantage of the known methods is that their use is aimed at protecting the object only in the radio range, simulating, but not reducing, the unmasking signs of the actual radiation of the protection object, while the unmasking signs of the object in the radar, visible and infrared (IR) wavelength ranges are not imitated.

Closest to the proposed is a method of protecting radar stations (radar) from homing weapons equipped with passive radar homing heads (GOS), given in [3], adopted as a prototype.

The prototype method consists in the emission of distracting signals by additional sources located at a distance not less than the radius of destruction of the warhead of anti-radar missiles and not more than the distance of direct visibility from the perimeter of a group of m radars that have the ability to programmatically review the space and control the time and frequency parameters of distracting signals in turn .

The introduction of N false radiation sources (false targets) reduces the probability of detecting radar to a non-zero value (m / m + N) ^L , (where L is the number of switchings of the frequency parameters of the RS radar), but the possibility of detecting the object of protection by its radiation is preserved.

The disadvantages of the prototype method are as follows:

- a false target protects the object only in the radar range of its operation, without reducing the unmasking signs of the functioning of the protected object for its main purpose, while the unmasking signs in the visible and infrared ranges are not imitated;

- the use of N false radiation sources reduces the likelihood of detection and guidance of high-precision weapons on the object of protection to a non-zero value, while maintaining the possibility of its detection and destruction.

The objective of the proposed method is to increase the survivability of the MSS due to the use of imitation of the unmasking features of the object in the radar, visible and infrared ranges and to exclude the possibility of detecting and direction finding radiation of the MSS by means of radio reconnaissance (RR).

To solve the problem in a method of protecting mobile communications (MSS) from radio, radar, optoelectronic reconnaissance and destruction by setting N false targets at a distance of not less than the radius of destruction of the warhead of the weapon and not more than the direct line of sight from the MSS with the possibility of the main purpose - the formation of information messages for transmission to the subscriber, according to the invention, set N combined false targets (CLC), providing an imitation of MSS and e o functioning in the frequency range of the work for the main purpose, by converting the information message generated in the MCC from the radio frequency range to the optical frequency range for transmission via a laser line to one of the N (N> 1) CLCs, laser radiation is received in the ith KLC, with its subsequent conversion to a radio frequency signal and reradiation to its subscriber, and in case of destruction of the i-th KLC, the laser source is redirected to the j-th KLC, in addition, each of the KLC provides The ability to reproduce the unmasking signs of the MSS in the IR and in the radar range makes the masked MSS visible in the visible wavelength range by covering it with a camouflage network while maintaining the overall dimensions of the MSS.

Figure 1 - illustration of the proposed method using combined false targets (KLC); figure 2 presents a diagram of a prototype device; figure 3 is a diagram of the proposed device.

The proposed method is as follows.

The N CLC is set at a distance of not less than the radius of destruction of the warhead of the weapon and not more than the distance of direct visibility from the MSS. Moreover, in order to ensure the functioning of the MSS for its main purpose and at the same time hide it from the means of the MSS, the MSS itself does not emit, but converts the generated information message from the radio frequency range to the optical range for transmission through a laser communication line to one of N (N> 1) KLTs for conversion and re-emission in the radio range by KLT antenna devices. In the event of the destruction of this CLC, the MSS redirects the source of laser radiation (OR) to another CLC.

Laser signal transmission of signals generated by MCC means in the process of functioning for the main purpose excludes the possibility of detection and direction finding of MCC radiation by means of PP in the radio range.

The combined false target receives laser radiation from the MSS, converts it into a radio frequency signal emitted to the intended subscriber. In addition, the CLC provides the ability to reproduce the unmasking signs of the MSS in the radar and IR ranges, in particular, by staging radar corner reflectors and simulating a thermal portrait, i.e. temperature distribution over the surface of the MSS, and covering with a camouflage net with maintaining the overall dimensions of the MSS makes the masked MSS visible in the visible wavelength range.

In the proposed method, the MSS does not emit a signal in the radio range, since the transmission of an information message is carried out with one of the N CLCs, the connection with which is provided by the laser channel. As a result, the possibility of detecting an MSS in the radio range by the radiation of its means is excluded. In case of defeat of the i-th CLC, the redirection of the laser radiation source to the j-th CLC follows (for N> 1). In this case, the functionality of the MSS is preserved.

Thus, an increase in the survivability of the MSS is achieved by using imitation of the unmasking features of the object in the radar, visible and infrared ranges and eliminating the possibility of detecting and detecting the radiation of the MSS by means of radio reconnaissance (RR).

Existing devices imitate features of a protected object in the same wavelength range. If reconnaissance and defeat means use unmasking features from a wavelength range different from that used in the simulator for target recognition, the probability of recognizing a false target as non-identical to the object increases significantly.

A device [5] is known, comprising several radars, a frequency synchronization unit, a code synchronization unit. The disadvantage of this device is the simulation without reducing the unmasking signs of the actual radiation of the radio objects of the protection object, while the unmasking signs of the object in the radar, visible and infrared wavelength ranges are not simulated.

Closest to the proposed is a device for protecting a group of radar stations from anti-radar missiles, given in [3], adopted as a prototype.

Figure 2 shows a diagram of a prototype device, where indicated:

1 - m radar stations (radar);

3 - N radiation sources;

6 - k sensors;

7 - control unit for changing frequencies and viewing the space.

The prototype device contains m radar 1, the control units of which are connected to the outputs of the frequency change control device and the overview of the space 7, as well as N radiation sources 3 located relative to the center of the radar group 1, and k sensors 6, designed to monitor the health of radiation sources 3 while the outputs of the sensors 6 are connected to the input of the control unit for changing the frequencies and the overview of the space 7. All parts of the device are located relative to each other at a distance providing electromagnetic compatibility.

The prototype device works as follows.

To control the frequency and time parameters of the probing signals (GL) of the radar 1 and the correspondence of the radiation sources 3, a general control unit for changing the frequencies and the overview of the space 7 is introduced into the device. The control unit 7 determines for each radar 1 the frequency and time parameters of the radar, their switching times, numbers or the coordinates of the radiation sources 3, which must be issued to set the parameters of the ES. A radar missile is highly likely to be guided by the signal of radiation source 3 and blown up by a contact fuse in case of direct hit by radiation source 3 or local objects, or by a non-contact radio fuse in case of a flight of the point with the maximum value of the power of the distraction signal.

Thus, in the prototype device, actions are taken to protect the radar in the range of operation of the object for its main purpose (radar range), while maintaining the unmasking signs of the radar both in the radar and in the visible and infrared ranges.

The objective of the proposed device is the elimination of unmasking signs of radiation of radio facilities in the MSS while ensuring its operation for the main purpose by converting the information message from the radio frequency into the optical range for transmission through a laser communication line to one of the N (N> 1) CLCs for conversion and radiation into the radio range of the antenna devices of the KLTs, as well as simulations of the MSS in the radar, visible and infrared frequency ranges.

To solve this problem, a device for protecting mobile communications equipment (MSS) from radio, radar, optoelectronic reconnaissance and destruction means, containing N false targets located at a distance not less than the radius of destruction of the warhead of the weapon and not more than the direct line of sight from the MSS and providing the possibility of emitting signals generated by the radio communication means of the MSS in the process of functioning for the main purpose using the antenna device, according to the invention, the following are introduced into the MSS the separately connected converter of the information message from the radio frequency range to the optical signal and the laser radiation source (OR), as well as an optical signal receiver, the output of which is connected to the retargeting unit OR, the output of which is connected to the second input OR, the false targets are made combined (CLC) with the possibility simulating MSS in the radar, visible and infrared ranges, each of the N CLCs contains a second optical signal receiver with an optical reflector, and the signal from the output of the optical receiver The signal is converted into an optical to radio-frequency signal conversion unit, the output of which is connected to an antenna device, in addition, each of the N CLCs is a thermal simulator with installed radar angle reflectors that simulates MSS in the infrared and radar wavelength ranges, and is also covered by a masking network with maintaining the overall dimensions, which gives the visibility of the masked MSS in the visible wavelength range, and the MSS has a laser line connection with the i-th CLC, at the MSS optical signal receiver via a laser line is connected to the reflector of the i-CLC receiver, and if the i-CLC is destroyed, the MCC optical signal receiver signals this to the retargeting unit, which sends OR to the j-th CLC, which continues to transmit the signal through radio channel, providing functioning for the main purpose.

Figure 3 presents a diagram of the proposed device, where it is indicated:

1 - mobile communications tool (MCC);

1.1 - converter of information messages from the radio frequency range to the optical;

1.2 - a source of laser radiation (OR);

1.3- redirection block OR;

1.4 - receiver of optical radiation;

2 - laser channel (line) of communication;

3 ¹ -3 ^N - N combined false targets (CLC);

3.1 - optical radiation receiver;

3.2 - block conversion of the optical (laser) signal into a radio frequency signal;

3.2.1 - control unit of the high-frequency generator (GHF);

3.2.2 - high frequency generator (GHF);

3.2.3 - power amplifier (PA);

3.3 - antenna device;

4 - thermal simulator;

5 - camouflage net.

The proposed device contains MCC 1, N KTsL 3 ¹ -3 ^N , each of which simultaneously simulates MCC 1 in the radio range and operates with MCC for the main purpose, because emits information messages generated in the MSS, imitation in the radar and infrared ranges, as well as the visibility of the disguised MSS 1 with maintaining its overall dimensions in the visible wavelength range. That is, each of the N KLC 3 is a false thermal simulator 4 covered by a standard camouflage network 5. For simulation in the radar range, radar angle reflectors are set (not shown in FIG. 3). Moreover, each of the N CLCs 3 contains an optical radiation receiver 3.1, which together with the laser radiation source 1.2 on the MCC 1 forms a laser communication channel 2. The optical radiation receiver 3.1 is connected to the antenna device 3.3, which emits a signal, through the conversion unit of the optical signal into radio frequency 3.2 for the main purpose in the radio wavelength range.

The block for converting an optical signal to radio-frequency 3.2 contains a series-connected control unit for a high-frequency generator (HHF) 3.2.1, a high-frequency generator (HHF) 3.2.2 and a power amplifier 3.2.3, the output of which is the output of the conversion unit 3.2, and its input is input of the GHF control unit 3.2.1.

In addition, MCC 1 contains a series-connected information message converter from the radio frequency range to optical 1.1, a laser source 1.2 and a retarget block OR 1.3, as well as an optical signal receiver 1.4, the output of which is connected to the second input of the switching unit 1.3, and the input of the optical signal receiver 1.4 through a laser communication line 2 has a connection with the i-th CCL 3. For this, the receiver 3.1 of each CCL 3 is equipped with an optical reflector that is connected via a laser line 2 with the i-th CCL 3.

As a block for re-targeting the radiation source 1.3, a rotary mechanism OR 1.2 can be used. As a thermal simulator can be used a thermal simulator, for example, according to US Pat. RF №2278344. The optical reflector can be made as described, for example, in the book: V.I. Vorobyov "Optical location for radio engineers", "Radio and communications", M., 1983, p. 89. Radar angle reflector can be performed, for example, as described in the book "Electronic warfare", Paly A.I., M., "Military Publishing", 1981, p.50.

The proposed device operates as follows.

The signal generated in MCC 1 for transmission to the subscriber is converted in the converter 1.1 into an optical signal, emitted OR 1.2 through a laser communication line 2 to the i-th MSC 3, where the signal received by receiver 3.1 is converted in block 3.2 into a radio frequency signal and emitted by the antenna device 3.3 broadcast. Moreover, each KTSL 3 is a thermal simulator 4 (a device for generating a thermal portrait), which creates a thermal portrait of MCC 1 in the IR wavelength range. In addition, the covering of KTsL 3 with a camouflage net 5 with maintaining the overall dimensions of MCC 1 gives the visibility of the masked MCC 1 in the visible wavelength range. In the case of destruction of the i-th MSC 3, the receiver 1.4 does not receive a signal from the optical reflector (not shown in FIG. 3) of the receiver 3.1 of the i-th MSC. Receiver 1.4 transmits a control signal to a retargeting unit 1.3, which sends OR 1.2 to the j-th CCL 3, which continues to transmit the signal to the main destination by radio to the subscriber, and also simulates MCC 1 in the visible and infrared wavelength ranges.

The proposed device contains the signs of the protected object in the radar, radio, infrared and in the visible wavelength range, when it is used, the need for the functioning of the radio source on the MSS is eliminated, which reduces the likelihood of its detection and damage, and therefore, the increase in the survivability of the MSS.

Information sources

1. Application RU 99118102 A, F41H 11/02.

2. Application 2001103933, G01S 7/38.

3. Patent RU 2099734, G01S 7/38 (prototype).

4. Patent RU 2278344, F41H 3/00.

5. US patent 4347513, G01S 7/38.

6. Patent RU 2278344, F41H 3/00.

Claims (3)

1. A method of protecting mobile communications (MSS) from radio, radar, optoelectronic reconnaissance and destruction by setting N false targets at a distance not less than the radius of destruction of the warhead of the weapon and not more than the line of sight from the MSS with the ability to function for its main purpose - the formation of information messages for transmission to the subscriber, characterized in that they produce the setting of N combined false targets (CLC), providing the simulation of the MSS and its functioning in the range of hours That work for the main purpose, by converting the information message generated in the MSS from the radio frequency range to the optical frequency range for transmission via a laser line to one of the N (N> 1) KLC, receive laser radiation in the i-th KLC with its subsequent reverse conversion into a radio frequency signal and reradiation to its subscriber, moreover, in the case of destruction of the i-th KLC, redirect the laser source to the j-th KLC, in addition, each of the KSC provides the ability to play dem Skiri MCC characteristics in the infrared and radar range, gives visibility masked MCC in the visible wavelength range by covering with masking network MCC maintaining overall dimensions. 2. A device for protecting the MSS from radio, radar, optoelectronic reconnaissance and destruction means, containing N false targets located at a distance not less than the radius of destruction of the warhead of the weapon and not more than the direct line of sight from the MSS and providing the possibility of radiation of signals generated by the MCC radio communications in the process of functioning for the main purpose with the help of an antenna device, characterized in that a series-connected converter of the information community is introduced into the MSS from the radio frequency range to the optical signal and the laser radiation source (OR), as well as the optical radiation receiver, the output of which is connected to the retargeting unit OR, the output of which is connected to the second input of OR, the false targets are made combined (CLC) with the possibility of simulating MSS in the radar visible and infrared ranges, each of the N CLCs contains an optical radiation receiver with an optical reflector, while the signal from the output of the optical signal receiver is converted into an optical conversion unit signal to the radio frequency signal, the output of which is connected to the antenna device, in addition, each of the N CLCs is a thermal simulator with installed radar angle reflectors that simulates MSS in the infrared and radar wavelength ranges, and is also covered by a camouflage network with maintaining overall dimensions, which gives the visibility of the disguised MSS in the visible wavelength range, and the MSS has a laser line connection with the i-th CLC, while the receiver of the optical MSS signal along the laser line has communication with the reflector of the receiver of the i-th FLC, and if the i-th FLC is destroyed, the MSS optical signal receiver signals this to the retargeting unit, which sends OR to the j-th FLC, which continues to transmit the signal over the air, ensuring operation for the main purpose. 3. The protection device according to claim 2, characterized in that the optical-to-radio-frequency signal conversion unit comprises a control unit for a high-frequency generator, a high-frequency generator and a power amplifier connected in series, the output of which is the output of the optical-to-radio-frequency converter.

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