JP2000338236A - Target-tracking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select such target as a rocket bomb that is not to be tracked of a radar device, stop output to target information-judging equipment, and perform exclusion from a target to be tracked, by excluding a shell and the rocket bomb being detected by a shell and rocket bomb detection circuit from an antiaircraft target candidate for obtaining antiaircraft target information. SOLUTION: A low-altitude target detection circuit 8 extracts a low-altitude target that is at a lower altitude than a reference altitude based on target information from a radar device 1. When the target altitude is equal to or less than 5 km, it is judged that a low-altitude target has been detected, thus outputting a low-altitude target detection signal to a shell detection circuit 9 and a rocket bomb detection circuit 10. The rocket bomb detection circuit 10 transmits a rocket bomb detection signal to a target control processor 11 according to a flowchart when the low-altitude target detection signal is inputted. The target control processor 11 excludes the target information of the shell and the rocket bomb based on the shell detection signal and the rocket bomb detection signal from the target information from the radar device 1 and transmits it to target information-judging equipment 4, and at the same time instructs the exclusion of following the shell and the rocket bomb to the radar device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a target tracking device that searches for and follows a target that enters from the sky (hereinafter referred to as an anti-aircraft target) using a radar device.

[0002]

2. Description of the Related Art With the recent development of electronics technology, radar devices have become able to follow an anti-aircraft target in a wider range and with higher accuracy. However, because of this, even low-priced, low-impact information such as artillery shells and rockets that are not originally targeted for expensive and powerful surface-to-air missiles (hereinafter referred to as non-targets) can be sensed. , Delaying the reaction to other highly urgent aircraft and missiles (hereinafter referred to as target targets), or dealing with a large number of the above-mentioned shells and rockets, would result in the early launch of surface-to-air missiles. There were drawbacks.

FIG. 10 is a diagram showing the operation of a conventional typical target tracking device. The operation of the conventional target tracking device will be described with reference to FIG. In FIG. 10, reference numeral 1 denotes a radar device that searches and follows an anti-aircraft target candidate, 2 denotes a target information processing device that inputs target information from the radar device 1 and controls launching of a surface-to-air missile, and 3 denotes a target information processing device A surface-to-air missile launcher that launches a surface-to-air missile m1 in accordance with control information.
H1 is a field gun h2 is a multiple rocket launcher, t1
Is an aircraft, t2 is an air-to-ground missile, t3 is a cruise missile, t4 is a shell fired by the field gun h1, and h5 is a rocket fired by the multiple rocket launcher h2.

The radar apparatus 1 searches for targets such as an aircraft t1, an air-to-ground missile t2, a cruise missile t3, a shell t4, a rocket t5, etc., detects the presence of each target as an anti-aircraft target candidate, and detects each target. Following, the target information corresponding to each target is transmitted to the target information processing device 2. The target information is generally the position, altitude, speed, radio wave reflection intensity, and the like of the above-mentioned t1 to t5. The tracking of the target by the radar device 1 is described in the book “INTROD” published by MCGRAW-HILL of the United States.
UCTINO TO RADAR SYSTEMS 2
nd Edition "(MERRILL, I, SKO
For example, the angle is determined by a monopulse method and the distance is determined by a split-range-gate method. The determination of the anti-aircraft target is mainly performed based on altitude and speed. This is because, by definition, an anti-aircraft target has an altitude and has a higher velocity than a ground target. The target information processing device 2 performs a surface-to-air missile m1 based on the target information.
The anti-aircraft target to be fired is extracted from the above t1 to t5, and the extracted antiaircraft target is a surface-to-air missile m1.
Calculates the launch direction of the surface-to-air missile m1 (hereinafter referred to as the launch specification) and sends it to the surface-to-air missile launcher 3. The surface-to-air missile launcher 3 launches the surface-to-air missile m1 in the direction indicated by the launch specifications.

FIG. 11 shows the conventional target information processing apparatus 2 described above.
4 is a block diagram showing details of the target information judging unit 4 for judging an air-to-air target based on the position and speed of the target information from the radar device 1;
A target information holder 6 for holding target information of a target or a plurality of targets determines a target (hereinafter referred to as an engagement target) for launching the surface-to-air missile m1 based on the target information held by the target information holder 5. An engagement target determiner 7 is a trajectory calculator for calculating the launch parameters of the engagement target from the engagement target determiner 6. As described above, the launch parameters from the ballistic calculator 7 are sent to the surface-to-air missile launcher 3, where the launch direction of the surface-to-air missile m1 is controlled.

[0006]

As described above, as described above,
In the conventional target tracking device, the target information is held for all the anti-aircraft targets observed by the radar device 1 to determine the engagement target. Therefore, the above-mentioned non-target targets are also determined as the anti-aircraft targets by the target information determiner 4. Since it is stored as goal information,
If a large number of these non-target targets appear, these targets alone will squeeze the maximum tracking target number of the radar device 1 and the maximum target processing number of the target information processing device 2, making it impossible to process the target targets. Further, in some cases, there is a disadvantage that an untargeted target is erroneously determined as a target target and an anti-aircraft missile is fired.

The present invention has been made in order to solve the above-mentioned drawbacks. The radar apparatus 1 determines a target that is not targeted by an anti-aircraft missile such as a shell or a rocket from a target that the radar apparatus 1 follows. The purpose of the present invention is to obtain a target tracking device that stops outputting to the target device and excludes the target tracking target from the target tracking target of the radar device 1.

[0008]

According to a first aspect of the present invention, there is provided a target tracking device for searching for and following a candidate for an anti-aircraft target, a low altitude target detection circuit for extracting a low altitude target from the target followed by the radar device, A shell and rocket detection circuit that detects shells and rockets based on the motion characteristics of the low altitude target extracted by the low altitude target detection circuit; and a shell and rocket shell detected by the shell and rocket detection circuit from the anti-aircraft target candidates. Exclude the anti-aircraft target to obtain information of the anti-aircraft target, and make the radar device follow only the anti-aircraft target. The anti-aircraft target is determined based on the antiaircraft target information output by the target management processor. And a container.

[0009] A target tracking device according to a second aspect of the present invention includes:
A ballistic calculator for inputting information of the target target from the engagement target determiner and performing a trajectory calculation of a surface-to-air missile, and inputting a ballistic calculation result calculated by the ballistic calculator to launch a surface-to-air missile; And a controlled surface-to-air missile.

[0010] The target tracking device according to a third aspect of the present invention includes:
A transmission processor is provided for inputting information on the shells and rockets detected by the shell and rocket detection circuit and transmitting the information to the command post.

[0011] The target tracking device according to a fourth aspect of the present invention includes:
A ballistic calculator that calculates the trajectories of shells and rockets from the information of the shells and rockets detected by the shell and rocket detection circuits, and calculates the point of impact, and transmits the points of impact of the shells and rockets to the command post. It has a transmission processor.

[0012] A target tracking device according to a fifth aspect of the present invention includes:
A reverse trajectory calculator that calculates the launch point by calculating the trajectory of the shell and rocket from the information of the shell and rocket detected by the shell and rocket detection circuit, and transmits the firing point of the shell and rocket to the command post. It has a transmission processor.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is a block diagram showing a configuration of the first embodiment of the present invention. In the figure,
Reference numeral 1 denotes a radar device for searching for and following an anti-aircraft target, 8 denotes a low-air target detection circuit for detecting a low-air target from target information that the radar device follows, and 9 detects a shell from a low-air target detected by the low-air target detection circuit 8. The ammunition detection circuit 10 is a rocket detection circuit that detects a rocket from a low altitude target detected by the low-altitude target detection circuit 8, and 11 is information on the munition detected by the munition detection circuit 9 and the rocket munition detected by the rocket detection circuit 10. Is input, and the target information of the shells and rockets is excluded from the target information output by the radar device 1 and output to the target information determination circuit 4, and the radar device 1 is also instructed to exclude the following of the shells and rockets. A target management processor for causing the radar apparatus 1 to stop following ammunition and rockets; and 4, target information for determining an air-to-air target from target information output from the target management processor 11. Joki, 5 target information cage holding the target information target information determiner 4 outputs, 6 is a war target determiner target information holding unit 5 determines the engagement target from a plurality of target information held.

Next, the operation will be described. Radar device 1
Are not shown, aircraft t1, air-to-ground missile t2,
Searches and follows each target of the cruise missile t3, the ammunition t4 fired by the field gun, and the rocket ammunition t5 fired by the multiple rocket launcher, and sends the target information for each target to the low-altitude target detection circuit 8 and the target management processor 11. Output.

Each target has a difference in flight motion characteristics due to the purpose of flight and structural restrictions. UK Jan
e's "Jane's All The World"
D'SAIRCRAFT ","JANE'S STRA
The aircraft t1, air-to-ground missiles t2, cruise missiles t3, and field guns are estimated from documents such as "TEGIC WEAPONSYSTEMS", "Self Defense Force Equipment Yearbook" by Asakumo Shimbun, and "All of Soviet Ground Army Weapons and Tactics" by Hara Shobo. FIG. 2 shows the motion characteristics of the cannonball t4 to be fired and the rocket bullet t5 to be fired by the multiple rocket launcher. From this figure, it can be estimated that the target flying in the ascending direction from low altitude at Mach 1.3 to Mach 2.7 is a shell, and from low altitude Mach 1.0 to Mach 1.0
Ascending at Mach 1.3 and up to 4 from dozens of shots every few seconds
It can be estimated that the target in which zero targets fly densely is a rocket.

The low altitude target detection circuit 8 extracts a low altitude target located at an altitude lower than the reference altitude according to the flowchart shown in FIG. In FIG. 3, it is determined whether or not each target is a low altitude target based on whether the target altitude from the target information is 5 km or less (procedure 22). If the target altitude is 5 km or less, the low altitude target is determined. Is detected, and a low-altitude target detection signal is output to the shell detection circuit 9 and the rocket detection circuit 10 (procedure 23). When the low altitude target detection signal is input, the shell detection circuit 9 detects a shell according to the flowchart shown in FIG. In FIG. 4, first, it is determined whether the target speed from the target information falls between Mach 1.3 and Mach 2.7 (procedure 24), and the flight direction rises from the target speed of the target information with respect to the corresponding target. Judge whether it is the direction (processing procedure 2
5) If applicable, judge it as a shell (processing procedure 26)
The shell detection signal is sent to the target management processor 11. Also,
The rocket detection circuit 10 sends the rocket detection signal to the target management processor 11 according to the flowchart shown in FIG. In FIG. 5, first, it is determined whether the target speed falls between Mach 1.0 and Mach 1.3 (procedure 27), and it is determined whether the flight direction is an ascending direction with respect to the corresponding target (processing procedure). 28), it is determined whether there are tens to 40 targets at intervals of several seconds based on, for example, whether tens of targets are densely located within a radius of 1 km in diameter of the target. (Processing procedure 2
9) If it is determined that they are dense, it is determined that the rocket is a rocket (procedure 30), and a rocket detection signal is sent to the target management processor 11. The target management processor 11 excludes the target information of the shell and the rocket from the target information from the radar device 1 based on the above-mentioned shell detection signal and the rocket detection signal, and sends the target information to the target information determiner 4. , And instructs the radar device 1 to exclude following the shell and the rocket. The radar device 1 prohibits following a target having the same position, altitude, and speed as indicated by the instruction, thereby stopping the following of shells and rockets. Hereinafter, the operation of the target information determiner 4, target information holder 5, and engagement target determiner 6 is the same as that of the above-described conventional embodiment.

Embodiment 2 FIG. FIG. 6 is a block diagram showing the configuration of the second embodiment of the present invention. 3 is a surface-to-air missile launcher, 6 is an engagement target determiner, 7 is a ballistic calculator, m
1 is a surface-to-air missile. In the second embodiment, similarly to the above-described conventional example, an engagement target determiner 6, a ballistic calculator 7, and a surface-to-air missile launching device 3 are provided, and the surface-to-air missile m1 is operated in the same manner as the above-described conventional example. Fire.

Embodiment 3 FIG. 7 is a block diagram showing a configuration of the third embodiment of the present invention. Embodiment 3
Then, the target information estimated as the shell t4 and the rocket t5 from the shell detection circuit 9 and the rocket shell detection circuit 10 is input to the transmission processor 12 and transmitted to the command post 13. Based on the target information, the command post 13 communicates with, for example, another target tracking device (not shown), and performs command and control such as instructing the target tracking device not to track the above-mentioned cannonball t4 and rocket bullet t5.

Embodiment 4 FIG. 8 is a block diagram showing the configuration of the fourth embodiment of the present invention, in which 14 is a ballistic ballistic calculator, and 15 is a rocket ballistic calculator. In the fourth embodiment, the trajectory calculator 14 performs approximate trajectory calculation from the motion vector of the munition output by the munition detection circuit 9 to estimate the impact point of the munition, and the rocket output from the rocket detection circuit 10 outputs The rocket ballistics calculator 15 estimates the impact point of the rocket from the motion vector at t5, and the transmission processor 12
Transmits to the command post 13 information on the positions and impact points of shells and rockets. The command post 13 receives the information on the positions and the impact points of the shells t4 and rockets t5, and performs command and control, for example, instructs a friendly battle vehicle near the impact point (not shown) to move.

Embodiment 5 FIG. 9 is a block diagram showing the configuration of the fifth embodiment of the present invention, in which 16 is a shell reverse ballistics calculator, and 17 is a rocket reverse ballistics calculator. In the fifth embodiment, the shell reverse trajectory calculator 16 performs approximate trajectory calculation from the motion vector of the shell output from the shell detection circuit 9 to estimate the firing point of the shell, and the rocket shell output from the rocket detection circuit 10. The rocket bullet reverse trajectory calculator 17 estimates the launch point of the rocket from the motion vector at t5, and the transmission processor 12 transmits information on the positions of the shells and rockets and the position of the launch point to the command post 13. At command post 13, shells t
4 and the position of the rocket bullet t5 and the position of the launch point, and performs command and control, for example, on a ground attack helicopter (not shown) such as an instruction to attack the launch point.

[0022]

According to the first and second aspects of the present invention, it is possible to remove a target that is not targeted by the target tracking device among the targets that the radar device captures and tracks, so that the number of simultaneous target tracking of the radar device and the maximum number of simultaneous processing of the information processing device can be eliminated. Since all target processing numbers can be allocated to target targets, the performance of the radar device and the information processing device can be maximized.

According to the third invention, the command post can grasp the appearance of the non-target.

Further, according to the fourth aspect, the command post can grasp the appearance and the point of impact of the non-target target.

Further, according to the fifth invention, the command post can grasp the appearance and the launch point of the non-target.

[Brief description of the drawings]

FIG. 1 is a first embodiment of a target tracking device according to the present invention;
FIG. 3 is a block diagram showing the configuration of FIG.

FIG. 2 is a diagram showing estimated motion characteristics for each target type according to the present invention.

FIG. 3 is a first embodiment of a target tracking device according to the present invention;
It is a flowchart which shows the processing procedure of the low altitude detector in.

FIG. 4 is a first embodiment of a target tracking device according to the present invention;
4 is a flowchart showing a processing procedure of a shell detection circuit in FIG.

FIG. 5 is a first embodiment of the target tracking device according to the present invention;
6 is a flowchart showing a processing procedure of a rocket detection circuit in FIG.

FIG. 6 is a second embodiment of the target tracking device according to the present invention;
FIG. 3 is a block diagram showing the configuration of FIG.

FIG. 7 is a third embodiment of the target tracking device according to the present invention;
FIG. 3 is a block diagram showing the configuration of FIG.

FIG. 8 is a fourth embodiment of the target tracking device according to the present invention;
FIG. 3 is a block diagram showing the configuration of FIG.

FIG. 9 is a fifth embodiment of the target tracking device according to the present invention.
FIG. 3 is a block diagram showing the configuration of FIG.

FIG. 10 is a diagram showing the operation of a conventional typical target tracking device.

FIG. 11 is a block diagram showing a typical configuration of a conventional target tracking device.

[Explanation of symbols]

1 radar device, 2 target information processing device, 3 surface-to-air missile launcher, 4 target information determiner, 5 target information retainer, 6 engagement target determiner, 7 ballistic calculator, 8 low altitude target detection circuit, 9 shell detection circuit , 10 rocket detection circuit, 11 target management processor, 12 transmission processor, 13
Command post, 14 artillery trajectory calculator, 15 rocket trajectory calculator, 16 artillery reverse trajectory calculator, 17 rocket trajectory reverse trajectory calculator, 18 example of tracking status of radar equipment, 19 example of processing status of low altitude target detection circuit 20, an example of the processing status of the shell target detection circuit, 21 an example of the processing status of the rocket detection circuit, 22 a processing procedure for determining whether the target is a low altitude target, 23
A processing procedure for outputting results to the shell detection circuit and the rocket detection circuit, a processing procedure for determining whether the target velocity is within the range of the shell, a processing procedure for determining whether the flight direction matches the characteristics of the shell, 26 a procedure for determining that the target is an ammunition, 27 a procedure for determining whether the target speed is within the range of the rocket, 28 a procedure for determining whether the flight direction matches the characteristics of the rocket, 29 A processing procedure for determining whether the density of the flight targets matches the characteristics of the rocket, 30 a processing procedure for determining that the target is a rocket, t1 aircraft, t
2 air-to-surface missiles, t3 cruise missiles, t4 shells, t5 rockets, m1 surface-to-air missiles.

Claims (5)

[Claims] 1. A radar device for searching for an anti-aircraft target candidate and following the searched anti-aircraft target candidate, and a low altitude detecting a target flying in a low altitude based on the altitude of the anti-aircraft target candidate which the radar device has followed. A target detection circuit, a shell and rocket detection circuit that detects shells and rockets based on the low altitude target motion characteristics detected by the low altitude target detection circuit, and the shell detection circuit and the rocket detection circuit from the anti-aircraft target candidate A target management processor that makes the radar device follow only the anti-aircraft target while obtaining information on the anti-aircraft target excluding the detected shells and rockets, and information on the anti-aircraft target output by the target management processor. And a battle target determiner for determining a battle target to be dealt with by an anti-aircraft missile. 2. A trajectory calculator for inputting information of a target target from the engagement target determiner and calculating a trajectory of a surface-to-air missile, and a ballistic calculation result calculated by the ballistic calculator is input to launch a surface-to-air missile. 2. The target tracking device according to claim 1, further comprising: a surface-to-air missile launching device that performs the following control. 3. The target tracking device according to claim 1, further comprising a transmission processor for inputting information of the shell and the rocket from the shell and rocket detection circuit and outputting the information to the command post. 4. A ballistic calculator for inputting information on shells and rockets from the shell and rocket detection circuit and calculating the impact points of shells and rockets, and the shots of the shells obtained by the ballistic calculator 2. A transmission processor for transmitting a point and a launch point of a rocket to a command post.
Target tracking device as described. 5. A reverse trajectory calculator for inputting information of a shell and a rocket from the shell and rocket detection circuit to calculate a firing point of the shell and the rocket, and a shell and a rocket obtained by each of the calculators. The target tracking device according to claim 1, further comprising a transmission processor that transmits the launch point of the target to the command post.