JP2007247952A - Missile and missile guidance system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a missile of a plurality of missiles that are guided toward a plurality of different targets even if a guidance control device installed on the ground or in a vehicle is difficult in discriminating the plurality of targets. <P>SOLUTION: The missile is equipped with: a seeker for searching a target; a communication device for transmitting information on a target position and speed acquired between this missile and the other missile; and a signal processing part for setting the searching range of the seeker not to include the target that the other missile has acquired within the search range based on the target position and speed acquired by the other missile received from the other missile through the communication device. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a flying body guided toward a target. Specifically, the present invention relates to a flying object that is exchanged with information about a target among a plurality of flying objects and is guided toward different targets.

  In the conventional simultaneous multi-target guidance method, information is exchanged between a radar device and a guidance control device mounted on the ground, a vehicle, a ship, an aircraft, etc., and the guidance control device is individually connected to a plurality of flying objects. By giving the target information, multiple flying objects are directed toward multiple targets. As an example, multiple simultaneous communication links that set the local oscillation frequency of the flying object so that the flying object can receive the Doppler frequency of the reflected wave calculated by the fire control device input via the ground radar. A target guidance method is shown (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 7-198298 (page 4, FIG. 1)

When a plurality of targets approach and proceed at substantially the same speed, the target information obtained from the radar device is similar, so that it is difficult for the guidance control device to distinguish the plurality of targets. In addition, it is difficult for the guidance control device to discriminate between multiple targets even when the radar device cannot obtain accurate target information due to shooting with the target out of sight of the radar device or due to the accuracy of the radar device. Become.
In such a case, in the conventional guidance system, the guidance control device cannot give individual target information to a plurality of flying objects, and the plurality of flying objects are locked on the same target and are the same. There was a problem of being guided by the goal. In addition, there is a problem that a plurality of flying objects are locked on the same target and guided to the same target due to the positional relationship between the target and the flying object even if the target can be distinguished.

  The present invention has been made to solve such a problem, and even in a situation where it is difficult to discriminate a target having a plurality of guidance control devices, the plurality of flying bodies are locked on different targets and are different. The aim is to obtain a flying object that is guided towards the target.

  The flying object according to the present invention includes a communication device that transmits information between a seeker searching for a target and another flying object, and the other received from another flying object via the communication device. A signal processing unit that sets a search range that does not include the target captured by the other flying object in the search range of the seeker, using target information such as the position and speed of the target captured by the flying object I did it.

  According to the flying object according to the present invention, even when it is difficult to discriminate a target having a plurality of guidance control devices installed on the ground or the like because a plurality of targets are approaching, each flying object is Capture different goals and be guided to each goal.

Embodiment 1
FIG. 1 is a diagram showing a configuration of a flying object guidance system according to Embodiment 1 of the present invention. The flying object guidance system according to the present invention includes a radar device 31 that detects and tracks a target and outputs target position / velocity information 200 that is information on the position and velocity of the target, and a guidance control device that guides the flying object. 32 and a plurality of flying bodies 1 that perform mutual communication between the flying bodies. The radar device 31 and the guidance control device 32 for guiding the flying object are mounted on the ground, a vehicle, a ship, an aircraft, and the like. Here, the radar device 31, the guidance control device 32, and the launch device 33 are collectively referred to as a launch guide device 3.

In FIG. 1, it is assumed that the targets 2a and 2b are close to each other and are approaching at substantially the same speed. For this reason, the radar device 31 cannot separate and discriminate between the targets 2a and 2b, and recognizes and tracks as a target group 4 that is a group of a plurality of targets. The launcher 33 launches a plurality of flying objects 1 in response to launch command signals 100 and 101 (not shown) from the guidance control device 32. Here, two flying bodies 1a and 1b are fired, but two or more flying bodies may be used.

FIG. 2 is a diagram illustrating the configuration of the flying object 1. The flying object 1 includes a seeker device 6, a data link device 7, a signal processing device 8, and an inertia device 9. The configuration of the flying object 1a and the flying object 1b is the same. The inertial device 9 periodically outputs the flying object position speed information 201 that is information on the position and speed of the flying object 1 to the data link 7. The data link 7 includes a communication facility, and periodically transmits the flying object position speed information 201 to the guidance control device 32.

The guidance control device 32 calculates the distance between the flying object 1 and the target group 4 using the target position speed information 200 and the flying object position speed information 201. When the distance between the flying object 1 and the target county 4 is longer than a predetermined distance, the guidance control device 32 sets the target county 4 as a guidance target and the expected meeting that is the meeting position where the flying object 1 and the target county 4 meet. The point 5 is calculated at a predetermined cycle using the target position speed information 200 and the flying object position speed information 201. The target position speed information 200 is information related to the target such as the position, speed, and traveling direction of the target group 4.
The guidance control device 32 sequentially transmits the predicted meeting point information 102, which is information of the predicted meeting point 5, to the flying object 1a and the flying object 1b that are flying.

In Embodiment 1, the positional relationship between the flying object 1a and the flying object 1b is assumed to be preceded by the flying object 1a as shown in FIG.

FIG. 3 is a flowchart for explaining the operation of the flying object guidance system. Until the distance between the flying object 1 and the target group 4 reaches a predetermined distance, the launching guidance device 3 transmits the expected meeting point information 102 to the flying object 1, and the flying objects 1a, 1b are expected meetings. Based on the point information 102, it is guided to the target county 4 (steps S001 to S009).

When the distance between the flying object 1 and the target group 4 reaches a predetermined distance, the guidance control device 32 transmits a seeker search start command 104 to the preceding flying object 1a (S010).

Next, after the launching guidance device 3 transmits the seeker search start command 104, an operation for setting a search range in which the flying objects 1a and 1b search for the target 2 will be described with reference to FIGS.
FIG. 4 is a diagram illustrating an operation in which the flying objects 1a and 1b set a target search range. FIG. 5 is a flowchart of an operation in which the flying object 1b sets a target search range.

The seeker device 6a of the preceding flying object 1a operates in response to a seeker search start command 104 from the launch guidance device 3, and starts searching for and tracking the target 2 (S011).

The seeker device 6 a searches the target group 4 for the target 2. When a plurality of targets are searched in the target group 4, a target closest to the flying object 1a is extracted from the plurality of targets. Here, let the extracted target be the target 2a. The seeker device 6a detects the position and speed of the target 2a (S012).
Here, the closest target is extracted, but the seeker device 6a may search and extract the first detected target.
The flying object 6a is closer to the target 2 than the guidance control device 32 provided on the ground or the like, and can search for the target 2 in a search direction that is easy to search. Can be searched.

  Next, the seeker device 6a outputs a guidance signal 200 for guiding the flying object 1a toward the target 2a to the signal processing device 8a. The guidance signal 200 includes the position and speed of the target 2a.

  The signal processing unit 8a uses the guidance signal 200 to guide the flying object 1a.

  The signal processing unit 8a extracts information on the position and speed of the target 2a locked on from the guidance signal 200, and outputs the target position / speed information 202 to the data link 7a.

  The data link 7a includes target position / velocity information 202 of the locked-on target 2a output from the signal processing device 8a, and flying object position / speed information 201 which is information on the position and speed of the flying object 1a output from the inertial device 9a. Is transmitted to the data link 7b of the flying object 1b located behind as the preceding flying object information 105.

When the flying object 1b receives the preceding flying object information 105 (S014), the signal processing device 8b calculates the search range of the seeker device 6b, and outputs the calculated search range 302 to the seeker device 6b (S015).
When the seeker device 6b receives the seeker search range 302 and the seeker search start command 106 from the launching guidance device 3, the seeker device 6b starts searching for and tracking the target (S017).

  Here, the operation of the signal processing device 8b calculating the search range of the seeker 6b will be described with reference to FIG.

  First, the signal processing device 8b inputs the position information and velocity information of the flying object 1b and the position information of the target group 2 by the radar device 3, and calculates the seeker search direction and the seeker search range by Equation 1 (step S101). ).

  The seeker search range is represented by a cone whose bottom surface with the seeker device 6b of the flying object 1b as a vertex is a part of a sphere. Therefore, the seeker search range is the hypotenuse of the cone, and the seeker search distance m that is the radius of the sphere, the seeker search angle θ that is the apex angle of the cone, and the search direction unit vector n (0) that indicates the direction of the cone axis It is determined. Here, the seeker search angle θ can be arbitrarily determined according to the characteristics of the seeker device.

  Next, the signal processing device 8b inputs the position and speed information of the target 2a where the flying object 1a obtained from the preceding flying object information 105 is locked on, and calculates the existence prediction range of the target 2a by Expression 2. (S102).

  In the presence prediction range, the bottom surface around the position of the target 1a where the flying object 1a is locked on is expressed as a cone of a part of the sphere. Therefore, the expected existence range is the hypotenuse of the cone, and is determined by the movable distance k that is the radius of the sphere, the movable angle γ that is the apex angle of the cone, and the motion direction unit vector j that indicates the direction of the cone axis. . Here, the movable angle γ can be arbitrarily determined according to the characteristics of the target 2a.

Next, the signal processing device 8b compares the seeker search range with the presence prediction range of the target 2a (S103).
When the seeker search range does not overlap with the presence prediction range of the target 2a, the seeker search direction is set as it is as an input value to the seeker device 6b.
If the seeker search range overlaps with the target prediction range of the target 2a, the seeker search range is calculated again as follows using the target prediction range of the target 2a and the position information of the target group 4 by the radar device 3.

The signal processing device 8b inputs the presence prediction range of the target 2a and the position information of the target group 2 by the radar device 3, and calculates a seeker search direction and a seeker search range that do not overlap with the presence prediction range of the target 2a by Equation 3. To do.
The signal processing device 8b sets the seeker search direction as an input value to the seeker device 6b (S104).

  The seeker search range calculated at this time is biased toward the position information side of the target group 2 by the radar device 3. In this case, the seeker search range is the hypotenuse of the cone, the seeker search distance m that is the radius of the sphere, the seeker search angle θ that is the apex angle of the cone, and the updated search direction unit vector that indicates the direction of the cone axis determined by n (1). Here, Formula 3 is applied to a plane composed of three points, ie, the closest point to the flying object 1b and the target group 2 position by the radar apparatus 3 within the range of the flying object 1b and the target 2a.

  The seeker device 6b searches and tracks the target within the seeker search range calculated by the signal processing unit 7b.

  When the seeker device 6b searches for the target 2b, it outputs target position speed information 300 such as the position and speed of the target 2b to the signal processing device 8b.

  The signal processing unit 8b guides the flying object 1b based on the target information output from the seeker device 6b.

As described above, the flying object of the present invention is provided with the data link for performing communication between the flying objects. The preceding flying object sends information such as the position and speed of the locked-on target to the flying object located behind by a data link. When a flying object located behind receives information such as the position and speed of the target that the preceding flying object is locked on, the target that the preceding flying object is locked on may be out of the search range of the seeker device. The search range was set.
As a result, even in a situation where it is difficult to discriminate between targets having a plurality of guidance control devices, a plurality of flying objects can be locked on to different targets and guided toward different targets. You can get a ginger.

Embodiment 2
In the first embodiment, when the launching guidance device 3 cannot separate and discriminate the target and recognizes it as a target group 4 that is a group of a plurality of targets, the flight located behind the preceding flying object 1a The body 1b sets the search range so that the already locked target 1a is excluded. In the second embodiment, the flying object 1b located at the rear side sets the search start time for starting the search so that the already locked target 1a is excluded.

  The configuration of the flying object guidance system of the second embodiment is the same as that of the first embodiment. Here, the operation in which the flying object 1 sets the search range will be described with reference to FIGS. 1, 2, 6, and 7. Until the distance between the flying object 1 and the target group 4 reaches a predetermined distance, the description is omitted because it is the same as in the first embodiment, and the distance between the flying object 1 and the target group 4 is a predetermined distance. The operation from that point will be described. Moreover, the same number is attached | subjected about the same structure as Embodiment 1, and description is abbreviate | omitted.

  FIG. 6 is a diagram for explaining an operation in which the flying objects 1a and 1b according to the second embodiment of the present invention set a target search range. FIG. 7 is a flowchart of the operation in which the flying object 1b according to the first embodiment of the present invention sets the target search start time.

  The preceding flying object 1a detects the target 2a, and transmits position / velocity information 400, which is information on the detected position and speed of the target 2a, to the flying object 1b via the data link 7a.

  The flying object 1b searches for the target 2, but if the search is performed when the position velocity information 400 is received from the flying object 1a, the flying object 1a may be locked on the target 2a that is locked on. Is expensive. Therefore, the flying object 1b sets a time for starting the search for the target 2. A procedure for setting the search start time by the flying object 2b will be described with reference to FIG.

  In FIG. 7, the flying object 2 receives the position speed information 400 of the target 2a in which the flying object 1a is locked on from the flying object 1a (S201).

  The flying object 2 receives the position / velocity information 410, which is information on the position and speed of the target group 4 from the launch guidance device 3 (S202).

  Next, the flying object 2 calculates the seeker search range by Equation 1 using the position / velocity information 410. Next, the flying object 2 uses the calculated seeker search range and the position / velocity information 400 to determine whether or not the target 2a already locked on exists in the seeker search range (S203).

  When the target 2a does not exist within the seeker search range, a search start signal is input to the seeker device 6b (S204).

  When the target 2a exists in the seeker search range, the position information of the target 2a where the flying object 1a is locked on from the flying object 1a, the position of the target 2a and the target 2b from the radar apparatus 3 are again transmitted through the data link 7b. The information is updated, the position information of the flying object 1b is updated from the inertial device 9b, and the process returns to S201.

As described above, in the second embodiment, when the launch guidance device 3 cannot recognize and discriminate the target and recognizes it as the target group 4 which is a group of a plurality of targets, The search start time for the seeker device to start searching for a target is set so that the target already locked by the flying object is excluded.
As a result, even in a situation where it is difficult to discriminate between targets having a plurality of guidance control devices, a plurality of flying objects can be locked on to different targets and guided toward different targets. You can get a ginger.

It is a figure which shows the structure of the flying body guidance system by Embodiment 1 of this invention. It is a figure explaining the structure of the flying body 1 by Embodiment 1 of this invention. It is a flowchart explaining operation | movement of the flying body guidance system by Embodiment 1 of this invention. It is a figure explaining the operation | movement which the flying bodies 1a and 1b by Embodiment 1 of this invention set a target search range. It is a flowchart of the operation | movement which the flying body 1b by Embodiment 1 of this invention sets a target search range. It is a figure explaining the operation | movement which the flying bodies 1a and 1b by Embodiment 2 of this invention search for a target. It is a flowchart of the operation | movement which the flying body 1b by Embodiment 2 of this invention sets the target search start time.

Explanation of symbols

  1a flying object, 1b flying object, 2 target, 2a 2b target, 3 launch guidance device, 4 target group, 5 predicted meeting point, 6a seeker device, 6b seeker device, 7a data link, 7b data link, 8a signal processing Device, 8b signal processing device, 9a inertial device, 9b inertial device, 31 radar device, 32 guidance control device, 33 launch device, 100, 101 launch command signal, 102 expected meeting point information, 104, 106 seeker search start command, 105 Prior flying object information, 200 target position speed information, 201 flying object position speed information, 202 target position speed information, 300 target position speed information, 302 seeker search range, 1000 flying object guidance system.

Claims (3)

With Sika searching for the target,
A communication device that communicates information with other flying objects;
Based on the target information such as the position and speed of the target captured by the other flying object received from the other flying object via the communication device, the other flying object is within the search range of the seeker. A flying body comprising a signal processing unit for setting a search range of the seeker so that a target captured by the body is not included. A radar device that detects and tracks a target to acquire target information such as the position and speed of the target;
A guidance control device for calculating a meeting position between the target and the flying object calculated based on the target information and transmitting the calculated position to the flying object;
A seeker that searches for the target; a communication device that receives the meeting position from the guidance control device and communicates information with other flying objects; and a signal processing unit that sets a search range of the seeker With multiple flying bodies with
When it is impossible to identify a target having a plurality of the guidance control devices, the flying object, such as the position and speed of the target captured by the other flying object, is obtained from the other flying object via the communication device. Receiving the target information, and setting the search range of the seeker so that the target captured by the other flying object is not included in the search range of the seeker based on the target information. Gypsum guidance system. With Sika searching for the target,
A communication device that communicates information with other flying objects;
Using the target information such as the position and speed of the target captured by the other flying object received from the other flying object via the communication device, the target captured by the other flying object is the seeker. And a signal processing unit that calculates a time that is no longer included in the search range and outputs a search start instruction to start searching for the seeker at the time.

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