CN115311904A - Air target comprehensive identification method and device based on dynamic reasoning modeling - Google Patents
Air target comprehensive identification method and device based on dynamic reasoning modeling Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
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- G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
- G08G5/003—Flight plan management
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
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- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/415—Identification of targets based on measurements of movement associated with the target
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- G—PHYSICS
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- G08G—TRAFFIC CONTROL SYSTEMS
- G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
- G08G5/0047—Navigation or guidance aids for a single aircraft
- G08G5/006—Navigation or guidance aids for a single aircraft in accordance with predefined flight zones, e.g. to avoid prohibited zones
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- G—PHYSICS
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- G08G—TRAFFIC CONTROL SYSTEMS
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Abstract
The invention discloses an aerial target comprehensive identification method and device based on dynamic reasoning modeling, wherein the method comprises the steps of respectively acquiring information related to an aerial target through a collaborative identification system, a primary radar, an air traffic control system and a communication data chain system; and comprehensively processing the information related to the aerial target through dynamic reasoning modeling, and judging the aerial target attribute. The invention improves the accuracy and the recognition probability of the aerial target attribute recognition; the information source of target attribute judgment is enlarged, the method is complementary with the existing cooperative identification system, the reliability of aerial target attribute judgment is improved, and the occurrence of misjudgment and misinjury events is reduced; and transmitting the result of the comprehensive identification of the attributes of the aerial targets to a radar terminal in real time, and providing decision basis for a commander to judge the attributes of the aerial targets.
Description
Technical Field
The invention relates to the technical field of target identification, in particular to an aerial target comprehensive identification method and device based on dynamic reasoning modeling.
Background
The cooperative identification system adopts an inquiry response mode, a transponder is additionally arranged on an airplane platform of the owner, when the radar of the owner detects an aerial target, a matched identification interrogator sends an inquiry signal to the target, if the aerial target has a response opportunity, the inquiry signal is decoded and a response signal is automatically sent back, the interrogator outputs an identification mark, a number, a height, a distress signal and the like to a radar display terminal after decoding the response signal, and the identification mark, the number, the height, the distress signal and the like are confirmed to be the target of the owner. When the aerial target has no agreed identification signal, the system judges that the aerial target is a non-own target, but cannot distinguish other targets, and because the collaborative identification system has technical problems of crosstalk, mixed interference, sidelobe inquiry and the like, the identification probability is reduced, and the aerial target is easily interfered and cheated.
Disclosure of Invention
In view of the above, the invention provides a dynamic reasoning modeling-based aerial target comprehensive identification method and device, which not only can bystander targets of a collateral evidence collaborative identification system, but also can further distinguish other party attributes in non-party targets, thereby being beneficial to reducing the identification range of the non-party targets and improving the accuracy and identification probability of aerial target attribute identification.
The invention discloses an air target comprehensive identification method based on dynamic reasoning modeling, which comprises the following steps:
step 1: respectively acquiring information related to an aerial target through a cooperative identification system, a primary radar, a navigation management system and a communication data chain system;
step 2: and comprehensively processing the information related to the aerial target through dynamic reasoning modeling, and judging the aerial target attribute.
Further, before the step 2, the method further comprises:
determining the aerial target attribute by taking target response information of the cooperative identification system as a main determination element; said step 2 is performed in the absence of agreed target response information.
Further, the step 1 comprises:
acquiring a target response signal through a cooperative identification system, acquiring target position and motion information through a primary radar, acquiring target position and attribute information through a navigation management system, and acquiring an instruction and a flight plan through a communication data link system; the target response signal, the target position and motion information, and the target position and attribute information form flight airspace information of the aerial target.
Further, the step 2 comprises:
judging the attribute of the aerial target according to an agreed identification response signal and an instruction sent by the aerial target; the aerial target attribute is that the aerial target belongs to one party or the other party;
judging the attribute of the aerial target according to the instruction and the flight plan;
and judging the attribute of the aerial target according to the flight plan and the flight airspace.
Further, the determining the attribute of the aerial target according to the agreed identification response signal and the instruction sent by the aerial target includes:
if the cooperative identification system detects an identification response signal but the instruction indicates that the aerial target is the other party, judging that the aerial target belongs to the other party;
the judging of the aerial target attribute according to the instruction and the flight plan comprises the following steps:
if the instruction does not indicate the aerial target, detecting the flight plan of the aerial target, and judging that the aerial target belongs to one party for the aerial target flying according to the flight plan;
if the aerial target does not fly according to the flight plan, detecting a flight airspace where the aerial target is located, if the aerial target is located in an aerial no-fly area, judging that the aerial target belongs to the other party, and otherwise, judging that the aerial target is unknown in attribute.
Further, the determining the attribute of the aerial target according to the agreed identification response signal and the instruction sent by the aerial target further includes:
if the cooperative identification system does not detect the identification response signal, but the instruction indicates that the aerial target is the party, judging that the aerial target belongs to the party;
the judging of the aerial target attribute according to the instruction and the flight plan comprises the following steps:
if the instruction does not indicate the aerial target, detecting the flight plan of the aerial target, and judging that the aerial target belongs to the other party for the aerial target which does not fly according to the flight plan;
if the aerial target flies according to the flight plan, the flight airspace where the aerial target is located needs to be detected, if the aerial target is located in the air no-fly area, the aerial target is judged to belong to the other party, and if not, the aerial target is judged to be unknown in attribute.
The invention also discloses an aerial target comprehensive identification device based on dynamic reasoning modeling, which comprises a collaborative identification system, a primary radar, an air traffic control system, a communication data link system and fusion processing equipment, wherein the device is used for comprehensively identifying various signals by utilizing various sensor signals collected by the comprehensive identification system and judging aerial target attributes through the fusion processing equipment of the comprehensive identification system;
The cooperative identification system is used for acquiring a target response signal;
the navigation management system is used for acquiring target position and attribute information;
the communication data chain system is used for acquiring instructions and flight plans;
and the fusion processing equipment is used for comprehensively utilizing the information acquired by the cooperative identification system, the primary radar, the navigation management system and the communication data link system to judge the target attribute.
Further, the fusion processing apparatus includes:
the response signal detection module is used for detecting a response signal according to the condition whether the response signal is detected;
the first target attribute judging module is used for judging the aerial target attribute according to the indication of whether the response signal and the instruction are detected;
the second target attribute judging module is used for judging the attribute of the aerial target according to the instruction of the instruction and the flight plan;
and the third target attribute judging module is used for judging the attributes of the aerial targets according to the flight plan and the flight airspace.
Further, the first target attribute determination module specifically includes:
when the response signal is detected, but the instruction indicates that the aerial target is the party, judging that the aerial target belongs to the party;
when the identification response signal is not detected, but the command indicates that the aerial target is a party, judging that the aerial target belongs to the party;
The two-target attribute judgment module specifically comprises:
if the instruction does not indicate the aerial target, detecting the flight plan of the aerial target, and judging that the aerial target belongs to one party for the aerial target flying according to the flight plan;
if the instruction does not indicate the aerial target, detecting the flight plan of the aerial target, and judging that the aerial target belongs to the other party for the aerial target which does not fly according to the flight plan.
Further, the three-target attribute determining module specifically includes:
if the aerial target does not fly according to the flight plan, detecting a flight airspace where the aerial target is located, if the aerial target is located in an aerial no-fly area, judging that the aerial target belongs to the other party, and if not, judging that the aerial target is unknown in attribute;
if the aerial target flies according to the flight plan, the flight airspace where the aerial target is located needs to be detected, if the aerial target is located in the air no-fly area, the aerial target is judged to belong to the other party, and if the aerial target is not judged to be unknown in attribute.
Due to the adoption of the technical scheme, the invention has the following advantages: the method not only can identify the target of the party of the collateral evidence collaborative identification system, but also can further distinguish the attribute of the other party in the non-target of the party, thereby being beneficial to reducing the identification range of the non-party and improving the accuracy and the identification probability of the identification of the attribute of the target in the air; the information source of target attribute judgment is enlarged, the method is complementary with the existing cooperative identification system, the reliability of aerial target attribute judgment is improved, and the occurrence of misjudgment and misinjury events is reduced; and transmitting the result of the comprehensive identification of the attributes of the aerial targets to a radar terminal in real time, and providing decision basis for a commander to judge the attributes of the aerial targets.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings.
FIG. 1 is a schematic diagram of an integrated identification system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the work flow of the comprehensive identification of other party attributes according to the embodiment of the present invention;
fig. 3 is a schematic diagram of an aerial target integrated identification and decision model according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, it being understood that the examples described are only some of the examples and are not intended to limit the invention to the embodiments described herein. All other embodiments available to those of ordinary skill in the art are intended to be within the scope of the embodiments of the present invention.
Referring to fig. 1, the comprehensive identification system for the aerial target attribute is composed of signal sensors such as a cooperative identification system, a primary radar, a navigation management system, a communication data link system and the like, and various sensor signals collected by the comprehensive identification system are utilized to comprehensively identify various signals through fusion processing equipment of the comprehensive identification system to judge the aerial target attribute. The integrated identification system is composed as shown in fig. 1.
The aerial target comprehensive identification method based on dynamic reasoning modeling comprises the steps of firstly, when identifying the aerial target of a party, taking target response information of a collaborative identification system as a main judgment element, and judging target attributes; under the condition of lacking appointed target response information, comprehensively utilizing target response information, target position and motion information, target position and attribute information generated by signal sensors such as a cooperative identification system, a primary radar, an air traffic control system, a communication data link system and the like, combining judgment elements such as instructions, flight plans and the like, judging the attributes of the aerial targets through an aerial target comprehensive identification judgment model, and effectively making up the limitation of attribute identification of the cooperative identification system (only judging the targets of the same party and the non-same party).
The workflow of the attribute comprehensive identification is shown in fig. 2.
Target information collected by various signal sensors is used as identification information for judging target attributes, and various acquired identification information is converted into judgment elements required by a comprehensive identification system to comprehensively identify the attributes of the hollow target. The various types of identification information provided by the signal sensor are shown in table 1.
TABLE 1 identification information of various types provided by signal sensor
| Serial number | Signal sensor | Identifying information |
| 1 | Collaborative recognition system | The identification inquiry response signal is a group of special pulse code signals, and is obtained by signal analysis and information Interpreting and analyzing the fine characteristics to judge the type and the attribute of the target. |
| 2 | Primary radar | The primary radar is mainly used for early warning, detection and the like to obtain the motion track and radio frequency of radar signals Rate, pulse amplitude, pulse width, intra-pulse subtle features, etc., to determine the type and attributes of the target. |
| 3 | Navigation management system | The navigation management system is one kind of radar beacon system for air traffic control and consists of airborne responder and ground The surface inquiry machine can provide the information of the code, altitude, etc. of the airplane and judge the attribute of the target airplane And (4) sex. |
| 4 | Communication data link system | According to working frequency, waveform, information format, fine feature and motion characteristic of communication data chain The information of the signals is obtained, the platform of the target airplane is judged, and the information of the command, the flight plan and the like is obtained And (6) stopping the reaction. |
The following signal types are selected as decision elements according to the requirements of the identification system.
1. Identification of the response signal
The cooperative identification system adopts a secondary radar working principle, consists of an interrogator and a responder, and utilizes an identification interrogation response signal to judge the target attribute. The aerial target is additionally provided with a transponder, when the signal sensor detects the aerial target, the matched interrogator sends out an interrogation signal, the airborne transponder decodes the interrogation signal and sends back an agreed identification response signal, and then the target is judged to be the own party.
2. Instructions
The command is one of the important bases for determining the attribute of the target in the air. And if the mechanism clearly indicates the attributes of the empty target, judging the attributes of the target according to the instruction, otherwise, further judging the attributes of the empty target.
3. Flight plan
And (4) judging the attributes of the aerial targets, and making a decision according to the flight tracks shown by the aerial targets. The flight plan refers to predetermined target state parameters of an aerial target, such as an airway, a course, a heading, a speed, an altitude and time. And comparing the target position detected by the signal sensor with the expected position of the flight plan, and if other state information such as the found target position, flight path and the like is completely related to the flight plan, judging the target to be the target of the party.
4. Flight airspace
The determination of the target attribute by utilizing the importance of the flight airspace of the aerial target is an important means for identification and determination. In order to ensure the safety of the air space in the important area to the maximum extent, the important air space such as the air no-fly area is set, and the prior notice of the owner and the friend is given, so that any unauthorized aircraft cannot enter the air no-fly area. If the aerial target is found in an important airspace such as an aerial no-fly area, the aerial target can be judged to be the other party.
Based on the above-mentioned decision elements, an aerial target integrated recognition decision model is established, as shown in fig. 3.
Utilizing an air target comprehensive identification and judgment model to perform identification and judgment on the attributes of the air target:
judging a first path: if the system detects the appointed identification response signal sent by the aerial target, but the mechanism indicates that the aerial target belongs to the other party target, the system judges the aerial target as the other party. If the mechanism does not indicate the aerial target, detecting the flight plan of the aerial target, and judging the system as the party of the aerial target flying according to the flight plan; and for the aerial target which does not fly according to the flight plan, detecting the airspace where the aerial target is located, if the aerial target is in important airspaces such as an aerial no-fly area, judging that the aerial target is the other party, and otherwise, judging that the aerial target is unknown in attribute.
And a second judgment path: if the system does not detect the appointed identification response signal sent by the aerial target, but the mechanism indicates that the aerial target belongs to the target of the party, the system judges the aerial target as the party. If the mechanism does not indicate the aerial target, detecting the flight plan of the aerial target, and if the aerial target does not fly according to the flight plan, judging the system as the other party; and detecting the airspace of the aerial target flying according to the flight plan, if the target is in an important airspace such as an air no-fly area, judging that the aerial target is the other party, and otherwise, judging that the aerial target is unknown in attribute.
Aiming at the defects and shortcomings of a cooperative identification system, the invention provides an air target comprehensive identification judgment model shown in fig. 3 by combining various identification information provided by a signal sensor, and comprehensively identifies the attributes of an air target by using judgment elements such as instructions, flight plans, identification response signals, electronic interference, target airspace and the like; the method expands the information source of target attribute judgment, forms complementation with the prior collaborative identification system, increases the reliability of aerial target attribute judgment, and reduces the occurrence of misjudgment and misinjury events; and sending the result of the comprehensive identification of the attributes of the aerial target to a radar terminal in real time, and providing a decision basis for a commander to judge the attributes of the aerial target.
The invention relates to an air target comprehensive identification and judgment model based on dynamic reasoning modeling; the model is used for identifying and judging the attributes of the aerial target, so that the accuracy and the identification probability of identifying the attributes of the aerial target can be improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. An aerial target comprehensive identification method based on dynamic reasoning modeling is characterized by comprising the following steps:
step 1: respectively acquiring information related to an aerial target through a cooperative identification system, a primary radar, a navigation management system and a communication data chain system;
step 2: and comprehensively processing the information related to the aerial target through dynamic reasoning modeling, and judging the aerial target attribute.
2. The method of claim 1, wherein prior to step 2, the method further comprises:
taking target response information of a cooperative identification system as a main judgment element, and judging the attribute of the aerial target; said step 2 is performed in the absence of agreed target response information.
3. The method of claim 1, wherein step 1 comprises:
acquiring a target response signal through a cooperative identification system, acquiring target position and motion information through a primary radar, acquiring target position and attribute information through a navigation management system, and acquiring an instruction and a flight plan through a communication data link system; the target response signal, the target position and motion information, and the target position and attribute information form flight airspace information of the aerial target.
4. The method of claim 3, wherein step 2 comprises:
judging the attribute of the aerial target according to an agreed identification response signal and an appointed instruction sent by the aerial target; the aerial target attribute is that the aerial target belongs to one party or the other party;
judging the attribute of the aerial target according to the instruction and the flight plan;
and judging the attribute of the aerial target according to the flight plan and the flight airspace.
5. The method as claimed in claim 4, wherein said determining the attributes of the aerial targets based on the agreed identification reply signals and commands issued by the aerial targets comprises:
if the cooperative identification system detects an identification response signal but the instruction indicates that the aerial target is the other party, judging that the aerial target belongs to the other party;
the judging of the aerial target attribute according to the instruction and the flight plan comprises the following steps:
if the instruction does not indicate the aerial target, detecting the flight plan of the aerial target, and judging that the aerial target belongs to one party for the aerial target flying according to the flight plan;
if the aerial target does not fly according to the flight plan, detecting a flight airspace where the aerial target is located, if the aerial target is located in an aerial no-fly area, judging that the aerial target belongs to the other party, and otherwise, judging that the aerial target is unknown in attribute.
6. The method as claimed in claim 4, wherein said determining the attributes of the aerial targets based on the agreed identification reply signals and commands issued by the aerial targets further comprises:
if the cooperative identification system does not detect the identification response signal but the instruction indicates that the aerial target is a party, judging that the aerial target belongs to the party;
the method for judging the attributes of the aerial target according to the instruction and the flight plan comprises the following steps:
if the instruction does not indicate the aerial target, detecting the flight plan of the aerial target, and judging that the aerial target belongs to the other party for the aerial target which does not fly according to the flight plan;
if the aerial target flies according to the flight plan, the flight airspace where the aerial target is located needs to be detected, if the aerial target is located in the air no-fly area, the aerial target is judged to belong to the other party, and if not, the aerial target is judged to be unknown in attribute.
7. The device is characterized by comprising a cooperative identification system, a primary radar, a navigation management system, a communication data chain system and fusion processing equipment, wherein the device is used for comprehensively identifying various signals by utilizing various sensor signals collected by the comprehensive identification system and judging the attributes of the aerial target through the fusion processing equipment of the comprehensive identification system;
The cooperative identification system is used for acquiring a target response signal;
the navigation management system is used for acquiring target position and attribute information;
the communication data chain system is used for acquiring instructions and flight plans;
and the fusion processing equipment is used for comprehensively utilizing the information acquired by the cooperative identification system, the primary radar, the navigation management system and the communication data link system to judge the target attribute.
8. The apparatus according to claim 7, wherein the fusion processing device includes:
the response signal detection module is used for detecting a response signal according to the condition whether the response signal is detected or not;
the first target attribute judging module is used for judging the aerial target attribute according to the indication of whether the response signal and the instruction are detected;
the second target attribute judging module is used for judging the attribute of the aerial target according to the instruction of the instruction and the flight plan;
and the third target attribute judging module is used for judging the attributes of the aerial targets according to the flight plan and the flight airspace.
9. The apparatus according to claim 8, wherein the first target attribute determining module specifically includes:
when the response signal is detected, but the instruction indicates that the aerial target is the party, judging that the aerial target belongs to the party;
When the identification response signal is not detected, but the instruction indicates that the aerial target is the party, judging that the aerial target belongs to the party;
the two-target attribute judgment module specifically comprises:
if the instruction does not indicate the aerial target, detecting the flight plan of the aerial target, and judging that the aerial target belongs to one party for the aerial target flying according to the flight plan;
if the instruction does not indicate the aerial target, detecting the flight plan of the aerial target, and judging that the aerial target belongs to the other party for the aerial target which does not fly according to the flight plan.
10. The apparatus according to claim 9, wherein the three-target attribute determining module specifically includes:
if the aerial target does not fly according to the flight plan, detecting a flight airspace where the aerial target is located, if the aerial target is located in an aerial no-fly area, judging that the aerial target belongs to the other party, and if not, judging that the aerial target is unknown in attribute;
if the aerial target flies according to the flight plan, the flight airspace where the aerial target is located needs to be detected, if the aerial target is located in the air no-fly area, the aerial target is judged to belong to the other party, and if not, the aerial target is judged to be unknown in attribute.
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