JP2008224194A - Air defense system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air defence system capable of easily overcoming disadvantages in air defence. <P>SOLUTION: The air defense system comprises an electric wave transmitting device 6 and an echo receiving device 7 separately arranged and both connected to a target information network system 1. The transmitting device 6 has a role of a decoy for coping with an electric wave follow-up type threat such as an ARM (Anti Radar Missile). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air defense system.

  The air defense system is formed by intertwining a plurality of elements such as a radar (hereinafter referred to as a sensor) and an interceptor. A sensor used in a relatively small air defense system (see, for example, Patent Document 1) detects and follows an invasion target from echoes of radio waves radiated into space, and copes with the target.

By the way, there is an invasion threat called ARM (Anti Radar Missile) in defending Japan. This type of flying object (invasion target) reacts to the radio wave emitted by the sensor and attacks the radio wave emitted by the air defense system. The best way to escape this attack is to not emit radio waves, but then you cannot detect the invading target. Eventually, the original capabilities of the air defense system cannot be demonstrated.
JP 2004-239561 A

If ARM is used on the enemy side, either the current air defense system will be destroyed, or if the radio wave emission is stopped to avoid ARM, the invasion target cannot be detected and the enemy is allowed to invade. Wait for the result. The fact that the enemy invasion cannot be dealt with in this way is a weak point in defense, and it is a good invasion point for the invader, so some countermeasure is desired.
The present invention has been made under the circumstances described above, and an object of the present invention is to provide an air defense system that can easily overcome a weakness in defense.

  In order to achieve the above object, according to one aspect of the present invention, a plurality of radio wave sources that radiate radio waves and a radio wave source provided at a location different from the radio wave sources and radiating from at least one of the plurality of radio wave sources. Receiving means for receiving and analyzing received echoes of radio waves, obtaining air target information, an air defense unit for performing air defense treatment on a critical target based on the target information, and communication forming a communication environment between the receiving means and the air defense unit An air defense system is provided.

  By taking such means, the means having the function as a radar is formed in a mode different from that of a normal sensor, so that a radar wave transmitter (radio wave source) and a receiver (reception means) are formed separately. Is done. Of these, the ARM flies toward the radio source and destroys it, but the radar function itself is not lost as long as other radio sources are alive. That is, since a plurality of radio wave sources function as a pseudo sensor (decoy), it is possible to easily cope with a critical target such as ARM, and to improve the air defense capability.

  According to the present invention, it is possible to provide an air defense system that can easily overcome a weakness in defense.

  FIG. 1 is a system diagram showing an embodiment of an air defense system according to the present invention. This system can be suitably used for a relatively small air defense system deployed on the ground, such as a SAM system. The system of FIG. 1 is formed with the target information network system 1 as a core. A plurality of ground devices 21 to 2n, a network FCS (Fire Control System) 31 and 32, and a plurality of airships 41 to 4m and 4n are connected to the target information network system 1 by wire or wirelessly. Of these, the airship is, for example, a stratospheric platform, and the ground devices 21 to 2n are, for example, air defense radars, command stations, command centers, radar equipment such as SAM systems, or radar devices. The networks FCS 31 and 32 and the airships 41 to 4m and 4n exchange information with each other using the target information network system 1 as a communication environment, and deal with threat targets (shock targets).

  Each of the networks FCS 31 and 32 includes an LAU (flying object launching device) 5 that can launch, for example, a SAM (Surface to Air Missile). The LAU 5 has a function as a so-called air defense unit that performs an air defense treatment with respect to the critical target. The network FCS 31 does not include a sensor, but acquires target information such as a target position, speed, direction, and number from the sensor of another system or apparatus via the target information network system 1.

  The ground devices 21 and 2n and the airships 44, 45, and 4n include a transmission device 6 as a radio wave source. The ground device 22 and the airships 41, 42, 43, 4 m include a receiving device 7 for receiving an echo of radio waves radiated from the transmitting device 6. As described above, the transmission device 6 and the reception device 7 are provided in different places. The difference between the two positions can be complemented by a data link via the target information network system 1, for example. Any one of the transmission devices has a function of radiating a radio wave toward an incoming target.

  In the system of FIG. 1, when an invasion target (ARM) 10 arrives, the target information is acquired and sent to the target information network system 1. In response to this, an intercept command is issued from the FCS to the LAU 5, and the intercept flying object 100 is launched from any of the LAU 5. In time, the invasion target 10 can be destroyed before damage to the viewer.

On the other hand, the invasion target 10 captures the radio wave radiated from the transmission device 6 and flies toward one of the transmission devices 6. For example, if the transmitter 6 mounted on the ground device 2n is captured and the interception is not in time, the ground device 2n will be damaged.
However, since there are a plurality of transmission devices 6, the remaining ones are still alive. Since the target information acquired by the remaining transmission device 6 is still flowed to the target information network system 1, the defense capability itself is hardly reduced.

  FIG. 2 is a flowchart showing an example of a processing procedure in the system of FIG. In FIG. 2, when the invasion target 10 is detected by the search by the transmitter (step S1) (step S2), the detection / following face by the receiver is entered (step S3). The target information obtained in this way is sent to the target information network system 1 (step S4) and transmitted to the network FCS32. Thus, the invasion target attack phase is entered (step S5), and the target is destroyed (step S6).

  FIG. 3 is a flowchart showing another example of the processing procedure in the system of FIG. In FIG. 3, it is assumed that a search phase is executed by a transmitter as a decoy and a true transmitter (steps S10 and S11), and two invasion targets are detected (steps S12 and S14). Even if the decoy transmitter is destroyed (step S13), the detection / following face by the receiver is started from the information obtained by the other transmitter (step S15). The target information obtained in this way is sent to the target information network system 1 (step S16) and transmitted to the network FCS32. Thus, the invasion target attack phase is entered (step S17), and the target is finally destroyed (step S18).

  As described above, in the present embodiment, the radio wave transmission device 6 and the reception device 7 that receives the reflected echo from the invasion target are separately arranged, and both are connected to the target information network system 1 to form an air defense system. . By making the transmitting device 6 also have a role as a decoy, it is possible to cope with a radio wave tracking type threat such as ARM. That is, the sensor that detects and follows the original target is protected from the attack of the enemy (target), and the invading enemy (target) can be dealt with while maintaining the original air defense capability.

In summary, by installing multiple airships (decoys) that can transmit strong radio waves in all directions, the invading ARM will fly in the direction in which strong radio waves are emitted, and the airships Defeat. Here, since a plurality of airships are installed (floating) and all transmit radio waves, the function as an air defense system is not lost. Moreover, the same effect can be obtained by installing a plurality of transmitters 6 on the ground that can transmit strong radio waves in the target direction of invasion.
As described above, according to the present embodiment, it is possible to easily protect the air defense system from the invasion target that reacts to the radio wave (attacks), and the weak point in the air defense system can be overcome.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be added to or deleted from all the components shown in the embodiment.

1 is a system diagram showing an embodiment of an air defense system according to the present invention. The flowchart which shows an example of the process sequence in the system of FIG. The flowchart which shows the other example of the process sequence in the system of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Target information network system, 21-2n ... Ground device, 31, 32 ... Network FCS, 41-4m, 4n ... Airship, 5 ... Flying object launcher (LAU), 6 ... Transmitter, 7 ... Receiver, 10 ... Invasion target (ARM), 100 ... Intercepting flying object

Claims (4)

Multiple radio sources that emit radio waves,
A receiving means provided at a location different from the radio wave source, and receiving and analyzing echoes of radio waves emitted from at least one of the radio wave sources to obtain target information;
An air defense unit for performing an air defense against a target to be hit based on the target information;
An air defense system comprising: communication means for forming a communication environment between the receiving means and the air defense unit. The air defense system according to claim 1, wherein at least one of the plurality of radio wave sources is mounted on an airship. The air defense system according to claim 1, wherein at least one of the plurality of radio wave sources is installed on the ground. The air defense system according to claim 1, wherein at least one of the plurality of radio wave sources radiates the radio wave toward the critical target.

Images