CN115453474A - Subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device - Google Patents
Subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device Download PDFInfo
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- 238000006243 chemical reaction Methods 0.000 claims description 11
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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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention discloses a subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device, which comprises: a ground equipment system and an aerial equipment system, the ground equipment system comprising: the data transmission radio station and the display control equipment; wherein the aerial device system comprises: unmanned aerial vehicle platform and unmanned aerial vehicle load, the unmanned aerial vehicle platform includes: the unmanned aerial vehicle and the flight control system thereof are completed by an unmanned aerial vehicle attached with an independent unit; unmanned aerial vehicle load synthesizes analog equipment for the radar, and it includes: the system comprises a data chain, a main control computer, a data recorder, a radar simulator, a duplex switch synthesizer and a broadband transceiving antenna. The invention mainly solves the tactical technical application problem of 'no field for training and no opponent for training', establishes a practical training means with simulated battlefield complex electromagnetic environment, and can play the role of 'blue army' in battle training under the complex electromagnetic environment condition. The training of constructing the complex electromagnetic environment of the battlefield by adopting the analog simulation mode can play an important positive role.
Description
Technical Field
The invention relates to the technical field of radio communication, in particular to a subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device.
Background
The target drone is an important tactical technical application mode which is generally adopted at present by training, testing and verifying ground equipment by setting a radar comprehensive analog signal by using a subsonic fixed wing unmanned aerial vehicle platform. Consisting essentially of a platform, load and other equipment. The used platforms are generally provided with a power device, a flight control system and the like, and can fly under the control of a ground control station and also can automatically navigate to fly according to a preset route. The load is mainly various task devices including electronic warfare devices, radar/infrared enhancement devices, foil/infrared bait throwing devices, miss indicator and the like which are used for carrying out target characteristic simulation tasks. Other devices also include towing targets and launch and recovery devices.
In recent years, modern radar technology and electronic countermeasure technology have been developed dramatically, the electromagnetic environment of modern battle fields is more and more complex and has higher density, the complex electromagnetic environment formed by each party in the battle and the nature seriously threatens the safety and the performance of weaponry, and the fighting of the electromagnetic right becomes the main action of the battle. Whether the control right of the electromagnetic spectrum can be obtained in a complex electromagnetic environment is one of the key factors for obtaining the war victory.
Therefore, a practical training means with a simulated battlefield complex electromagnetic environment is established, and the training means can play the role of 'blue army' in combat training under the complex electromagnetic environment condition. The training of constructing the complex electromagnetic environment of the battlefield by adopting the analog simulation mode can play an important positive role.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made keeping in mind the above problems occurring in the prior art.
Therefore, the invention aims to provide a subsonic fixed wing drone platform radar comprehensive simulation device which aims at comprehensively simulating electronic countermeasure real scenes and means in a complex electromagnetic environment.
In order to solve the technical problems, the invention provides the following technical scheme:
a subsonic fixed wing drone platform radar comprehensive simulation device, includes: a ground equipment system and an aerial equipment system, the ground equipment system comprising: the system comprises a data transmission radio station and a display control device;
wherein the aerial device system comprises: subsonic fixed wing drone platform and load based on drone platform, subsonic fixed wing drone platform includes: the subsonic fixed wing unmanned aerial vehicle and a flight control system thereof are completed by an unmanned aerial vehicle attached with an independent unit;
subsonic fixed wing unmanned aerial vehicle platform load synthesizes analog equipment for the radar, and it includes: the system comprises a data link, namely a data transmission radio station, a main control computer, a data recorder, a radar simulator, a duplex switch synthesizer and a broadband transceiving antenna;
various instructions are sent to the aerial unmanned aerial vehicle platform load by the display control equipment through the data transmission radio station, and the unmanned aerial vehicle load execution state and various data are received by the data transmission radio station and are transmitted back to the display control equipment.
As an optimal scheme of the subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device, the device comprises the following components: the radar simulator includes: the system comprises three subsystems, namely a radar target simulation system, a radar signal simulation system and an interference signal suppression system, wherein working switches and states of the three subsystems are controlled by a master control computer.
As an optimal scheme of the subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device, the device comprises the following components: the radar target simulation system includes: the radar signal received by the broadband receiving and transmitting antenna reaches the frequency standard of the current digital storage through down-conversion after being amplified by the limiting amplifier, the analog signal is converted into the digital signal in the A/D converter and stored in the storage, the information is timely extracted from the storage according to the rule of a target route under the control of a main control computer, then the digital signal is converted into the analog signal, the analog signal is converted into the radio frequency signal which is the same as the received signal through two stages of up-conversion, the radio frequency signal is radiated to the air by the broadband antenna through a duplex switch synthesizer, and a vivid target track is formed in a ground or air radar receiving system.
As an optimal scheme of the subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device, the device comprises the following components: and the system frequency source and the DRFM frequency source of the radar simulation system are both DDS signal sources.
As an optimal scheme of the subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device, the device comprises the following components: the radar signal simulation system is used for generating various radar signals and checking radar signal detection equipment, and comprises: the main control computer receives the control of the data link signal and feeds back application information, and the radar waveform generator is an FPGA programmable circuit and is used for generating various radar basic signals and repetition frequency signals thereof according to instructions.
As an optimal scheme of the subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device, the device comprises the following components: . A plurality of radar basic signals and repetition frequency signals thereof: conventional pulse radar signal, frequency agile radar signal, multiple frequency spread radar signal, multiple frequency jittered radar signal, chirp radar signal, phase encoded radar signal, frequency encoded signal, and the like
As a preferred scheme of the subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device, the invention comprises the following steps: the jamming signal mitigation system comprises: the receiving branch circuit sends the received signals to a signal processor for analysis after A/D conversion, judges the frequency and waveform characteristics of the ground radar in advance, modulates the frequency sweep signal generator to generate radio frequency interference signals in the same frequency and interference mode under the control of an MCU, and radiates the radio frequency interference signals to the air through a duplex switch synthesizer and a broadband antenna after the radio frequency interference signals are amplified by a broadband power amplifier.
As an optimal scheme of the subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device, the device comprises the following components: the load of the unmanned aerial vehicle platform is supplied with power by direct current 24V through a lithium battery pack, and the continuous working time is longer than 1 hour.
The invention has the beneficial effects that: the invention mainly solves the technical application problem of 'training without field and opponent', establishes a practical training means with simulated complex electromagnetic environment of battlefield, can play the role of 'blue army' in combat training under the condition of complex electromagnetic environment, and plays an important active role in constructing the training of complex electromagnetic environment of battlefield by adopting a simulation mode.
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In order to more clearly illustrate the technical solutions of 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 of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
fig. 1 is a schematic block diagram of a subsonic fixed-wing drone platform radar comprehensive simulation device provided by the present invention;
FIG. 2 is a schematic block diagram of a radar target simulation system of the subsonic fixed-wing drone platform radar comprehensive simulation device provided by the present invention;
FIG. 3 is a schematic block diagram of a radar signal simulation system of the subsonic fixed-wing drone platform radar comprehensive simulation device provided by the present invention;
fig. 4 is a schematic block diagram of a system for suppressing interference signals of the subsonic fixed-wing drone platform radar comprehensive simulation device provided by the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 4, in one embodiment of the present invention, a subsonic fixed wing drone platform radar integrated simulation apparatus is provided, which includes a ground equipment system and an aerial equipment system.
Wherein, ground equipment system includes: data radio station and show accuse equipment, aerial equipment system includes: unmanned aerial vehicle platform machine platform and unmanned aerial vehicle platform load, unmanned aerial vehicle platform machine platform includes: the unmanned aerial vehicle and the flight control system thereof are completed by an unmanned aerial vehicle attached with an independent unit, and when the unmanned aerial vehicle is specifically implemented, the 'sand cone 260C type' subsonic fixed wing unmanned aerial vehicle is adopted, so that the unmanned aerial vehicle can be remotely controlled on the ground, and can also be subjected to autonomous program flight by presetting parameters, and the unmanned aerial vehicle is completely suitable for the invention.
Unmanned aerial vehicle platform load is radar synthesis analog device, carries out direct current 24V power supply through lithium cell group, and it includes: data link (data transmission radio station), main control computer are MCU, data record appearance, radar simulator, duplex switch synthesizer and broadband receiving and dispatching antenna, and the radar simulator includes: the radar target simulation system, the radar signal simulation system and the interference signal suppression system are controlled by a master control computer.
Various instructions are sent to the aerial unmanned aerial vehicle platform load by the display control equipment through the data transmission radio station, and the unmanned aerial vehicle load execution state and various data are received by the data transmission radio station and are transmitted back to the display control equipment.
Specifically, the radar target simulation system includes: the system frequency source and the DRFM frequency source of the radar analog system are both DDS signal sources, the system frequency source is designed to be a coherent frequency source for frequency down-conversion of main radar application frequency in a broadband range from 2GHz to 18GHz, and is designed to be suitable for a DRFM frequency range, and the DRFM frequency source is a coherent signal source set for basic frequency of the current storage equipment.
The MCU plays a leading role in the simulation state of the radar target, because the up-down conversion frequency is the same coherent frequency source, the signal similarity is extremely high and is not easy to be identified by the radar of the opposite side, the duplex switch synthesizer is a public channel circuit, the MCU controls the switching of the state channel, the broadband transceiving antenna adapts to the signal transceiving in the broadband range of 2GHz-18GHz, all the working states are controlled by data link signals, the set simulation parameters can be stored in the recorder, and can be transmitted back to the ground control center through the data link communication of the data transmission radio station for checking the accuracy of the equipment to be tested or evaluating the performance.
The radar target simulation system adopts a digital frequency storage (DRFM) technology and has interference patterns such as direct delay forwarding interference, dense false target interference, track deception interference, random false target interference and the like, and the simulated radar target of the DRFM carrier has the characteristics of simulating azimuth and distance information of the false target, also having target height information and having better vivid effect.
The radar signal simulation system is used for generating various radar signals and checking radar signal detection equipment, and comprises: radar waveform generator, two local oscillators, a local oscillator, upper frequency conversion circuit and broadband power amplifier, main control computer accept data link signal control and feedback application information, radar waveform generator is FPGA programmable circuit for produce multiple radar basic signal and its repetition frequency signal according to the instruction, both included: conventional pulse radar signal, frequency agility radar signal, repetition frequency spread radar signal, repetition frequency jitter radar signal, linear frequency modulation radar signal, phase encoding radar signal, frequency encoding signal cover radar's basic waveform characteristics, and the local oscillator signal is the DDS optional signal, for up-conversion bandwidth area coherent frequency signal, can cover the frequency range of broad. The broadband power amplifier is a high-power radio-frequency output circuit, can provide radar radio-frequency signals with the bandwidth larger than 200W and simulates the basic characteristics of radar space radiation signals, and the duplex switch synthesizer and the broadband horn antenna are all public input and output devices, and the on-off of the devices is controlled by the MCU according to instructions. The control instruction comes from a data transmission data chain and can also be preprogrammed to independently work to complete the radar signal simulation function.
Furthermore, a jamming signal suppression system is an aggressive means for radio electronics, including targeting and coverage jamming, comprising: the receiving branch circuit sends the received signal to the signal processor for analysis after A/D conversion, judges the frequency and waveform characteristics of the ground radar in advance, modulates the sweep frequency signal generator to generate a radio frequency interference signal in the same frequency and interference mode under the control of the MCU, and radiates the radio frequency interference signal in the air after the radio frequency interference signal is amplified by the power amplifier. The MCU will check the interference effect from the received signal through the gap control, if the other party takes the evasive measures such as frequency change, the frequency will be updated at any time, and the new frequency range will be covered rapidly, which is also called as the adaptive interference. The adaptive noise interference may generate interference signals in the form of suppressed noise modulation interference, frequency-aiming noise interference, doppler flicker interference, and the like. Coverage interference, which may also be referred to as blind interference, refers to continuous interference signals generated in a certain frequency range, and such interference is generally modulated on the basis of noise signals, and finally blocks the receiving channels of radar and communication equipment in a larger frequency range through frequency sweeping. The overlay interference can be preset as wideband blocking, comb spectrum interference, clutter interference, etc.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. The utility model provides a subsonic fixed wing unmanned aerial vehicle platform radar synthesizes analogue means which characterized in that includes: a ground equipment system and an aerial equipment system, the ground equipment system comprising: the data transmission radio station and the display control equipment;
wherein the aerial device system comprises: subsonic fixed wing unmanned platform and load based on unmanned platform, unmanned platform includes: the subsonic fixed wing unmanned aerial vehicle and a flight control system thereof are completed by an unmanned aerial vehicle attached with an independent unit;
unmanned aerial vehicle platform load synthesizes analog equipment for the radar, and it includes: the system comprises a data link, a main control computer, a data recorder, a radar simulator, a duplex switch synthesizer and a broadband transceiving antenna;
various instructions are sent to the aerial unmanned aerial vehicle platform load by the display control equipment through the data transmission radio station, and the unmanned aerial vehicle load execution state and various data are received by the data transmission radio station and are transmitted back to the display control equipment.
2. The subsonic fixed-wing drone platform radar synthetic simulation device of claim 1, characterized in that: the radar simulator includes: the system comprises three subsystems, namely a radar target simulation system, a radar signal simulation system and an interference signal suppression system, wherein working switches and states of the three subsystems are controlled by a master control computer.
3. The subsonic fixed-wing drone platform radar synthetic simulation device of claim 2, characterized in that: the radar target simulation system includes: the radar signal received by the broadband receiving and transmitting antenna reaches the frequency standard of the current digital storage through down-conversion after being amplified by the limiting amplifier, the analog signal is converted into the digital signal in the A/D converter and stored in the storage, the information is timely extracted from the storage according to the rule of a target route under the control of a main control computer, then the digital signal is converted into the analog signal, the analog signal is converted into the radio frequency signal which is the same as the received signal through two stages of up-conversion, the radio frequency signal is radiated to the air by the broadband antenna through a duplex switch synthesizer, and a vivid target track is formed in a ground or air radar receiving system.
4. The subsonic fixed-wing drone platform radar synthetic simulation device of claim 3, characterized in that: and the system frequency source and the DRFM frequency source of the radar simulation system are both DDS signal sources.
5. The subsonic fixed wing drone platform radar synthetic simulation device of claim 4, characterized by: the radar signal simulation system is used for generating various radar signals and checking radar signal detection equipment, and comprises: the main control computer receives the control of the data link signal and feeds back application information, and the radar waveform generator is an FPGA programmable circuit and is used for generating various radar basic signals and repetition frequency signals thereof according to instructions.
6. The subsonic fixed-wing drone platform radar synthetic simulation device of claim 5, characterized in that: a plurality of radar basic signals and repetition frequency signals thereof: conventional pulse radar signals, frequency agile radar signals, multiple frequency spread radar signals, multiple frequency dithered radar signals, chirp radar signals, phase encoded radar signals, frequency encoded signals and the like.
7. The subsonic fixed wing drone platform radar synthetic simulation device of claim 2, characterized in that: the jamming signal mitigation system comprises: the receiving branch circuit sends the received signals to a signal processor for analysis after A/D conversion, judges the frequency and waveform characteristics of the ground radar in advance, modulates the frequency sweep signal generator to generate radio frequency interference signals in the same frequency and interference mode under the control of an MCU, and radiates the radio frequency interference signals to the air through a duplex switch synthesizer and a broadband antenna after the radio frequency interference signals are amplified by a broadband power amplifier.
8. The subsonic fixed-wing drone platform radar synthetic simulation device according to any of claims 1 to 7, characterized in that: and the load of the unmanned aerial vehicle platform is supplied with power by direct current 24V through a lithium battery pack.
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| CN116430330A (en) * | 2023-06-08 | 2023-07-14 | 航宇伟创科技(北京)有限公司 | Unmanned aerial vehicle-based radar radiation signal simulation system |
| CN118671718A (en) * | 2024-08-01 | 2024-09-20 | 国营洛阳丹城无线电厂 | Guided data chain function simulation method applied to introduced radar product simulation |
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