CN109709543A - A method of search detecting unmanned plane - Google Patents
A method of search detecting unmanned plane Download PDFInfo
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- CN109709543A CN109709543A CN201910177529.3A CN201910177529A CN109709543A CN 109709543 A CN109709543 A CN 109709543A CN 201910177529 A CN201910177529 A CN 201910177529A CN 109709543 A CN109709543 A CN 109709543A
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Abstract
A kind of method that the present invention proposes search detecting unmanned plane, for scanning for detecting to the unmanned plane in designated flying zone, the method includes transmitting radar modules, the analysis module for receiving radar module and being connected with reception radar module；The analysis module storage has unmanned plane flow perturbation characteristic when unmanned plane during flying；The transmitting radar is the transmitting radar being set as to designated flying zone launching detection radar wave, the received radar module of analysis module obtains the radar reflection wave beam of designated flying zone, and the airflow state data of designated flying zone are analyzed from reflected beam, when airflow state data include the matched data of the man-machine flow perturbation characteristic of being and not being, that is, think that designated flying zone there may be the unmanned plane of state of flight；The present invention can make up the defect of traditional unmanned plane search, accurately scan for detecting to the unmanned plane during flying phenomenon of designated flying zone.
Description
Technical field
The present invention relates to the radar exploration technique field, especially a kind of method of search detecting unmanned plane.
Background technique
Since China opens gradually 1000 meters or less low altitude airspaces, unmanned plane, model plane, fire balloon, hot balloon etc. " low,
Slowly, small " aircraft is more and more, while offering convenience to socio-economic development, chance also is brought to criminal,
Various illegal flights cause serious security risk to key activities, key area." black to fly " especially frequently reported recently
Cause numerous flight Emergency avoidances, the very disruptive normal flight of flight, landing.At the same time, it is also not excluded for individual illegal
Molecule can carry video camera possibly also with the more dry illegal business of unmanned plane or terrorist activity, unmanned plane, can also transport explosive
And other items, sound is small, is difficult to discover, and can pry through other people privacies and the attack of terrorism etc. using miniature drone to criminal and create
Condition.
" black to fly " event is also possible to jeopardize life and property safety of people, disturb public order.Professional instruction is not received
It is experienced, in order to meet personal interest, largely exist without the user that flight laws and regulations are realized without common sense；Civilian unmanned plane is light
Two or three kilogram, tens kilograms of weight, tens meters, more than 100 meters in the air fall down, may cause casualties.If in public affairs
Place " black to fly " more than garden et al., the danger that may cause is self-evident.
Search at present finds that the mode of aerial low slow Small object mainly has, passive radio-frequency spectrum detecting search discovery,
Traditional passive or active search lighting discovery target surface, sound wave identification search discovery and visible light camera or infrared
Thermal imaging system etc..
Monitoring radio-frequency spectrum is by passively detecting unmanned plane and ground remote control person " communication ", as remote control system, number pass
The spectrum signal of system or image transmission system is to search for discovery unmanned plane.Monitoring radio-frequency spectrum wide, distance with reconnaissance range
Far, swift feature is a practicable effective detecting means, if but unmanned plane target do not emit radio signal and
In " silence " state, will be unable to detect unmanned plane using electromagnetic spectrum method.
Conventional radar search discovery unmanned plane is to utilize electromagnetic wave by existing 2D/3D mechanically or electrically scanning radar technology
Detecting of the back wave phenomenon realization to unmanned plane target is generated when by different transmission mediums, but modern unmanned plane is generally all
It is to be made of plastic foam, cork wood and composite, this material has special wave property, greatly reduces actual effect.In addition
The radar scattering area of unmanned plane itself is very small, reduces effective scattering area, distance and the probability of detection detected by radar.
Sound wave identification search discovery unmanned plane is the noise by issuing when identification unmanned aerial vehicle onboard work to find and detect
Survey unmanned plane.The audio detected is matched with the database for having recorded all unmanned plane machine audios, can be picked out
Whether be unmanned plane the sound.But the current technology is effectively detected apart from short, and is easily disturbed.
Visible light/infrared detecting reflected using the thermal infrared of visible light or target, using over the horizon, high definition, is revealed
It can be seen that video camera and infrared thermal imager sensor combinations carry out unmanned plane detecting.Visible light/infrared detecting can find various
The unmanned plane of model can be realized all-weather, real time implementation, visual monitoring management.But unmanned plane is due to small in size, infrared
Radiation is low with feature, so that being greatly shortened by the detective distance of infrared detecting, on anti-laser detecting, unmanned plane is easier to take
Wave, transmission, leaded light material are such as inhaled, laser reflection and shape stealth design etc. are reduced, so that visible light/infrared detecting becomes more
Add difficulty.
Summary of the invention
A kind of method that the present invention proposes search detecting unmanned plane can make up the defect of traditional unmanned plane search, accurately
The unmanned plane during flying phenomenon of designated flying zone is scanned for detecting.
The present invention uses following technical scheme.
A method of search detecting unmanned plane, for scanning for detecting to the unmanned plane in designated flying zone, the side
Method includes the analysis module for emitting radar module, receiving radar module and being connected with reception radar module；The analysis module storage
There is unmanned plane flow perturbation characteristic when unmanned plane during flying；The transmitting radar is to be set as to designated flying zone emission detection
The transmitting radar of radar wave, the received radar module of the analysis module obtain the radar reflection wave beam of designated flying zone, and from anti-
The airflow state data that designated flying zone is analyzed in ejected wave beam, when airflow state data include the man-machine flow perturbation characteristic of being and not being
When according to matched data, that is, think that designated flying zone there may be the unmanned plane of state of flight.
The transmitting radar module and the quantity for receiving radar module are carried out in one-to-one ratio or one-to-many ratio
Configuration.
The transmitting radar module receives a part that radar module is weather radar, or is the one of Doppler radar
Part.
The unmanned plane include fixed-wing unmanned plane, multi-rotor unmanned aerial vehicle or be provided simultaneously with fixed-wing and more rotors nobody
Machine.
The unmanned plane flow perturbation characteristic includes the vortical disturbance spy generated when unmanned plane rotor works in the sky
Data are levied, further include the body wake flow perturbation features data of unmanned plane.
The vortical disturbance characteristic, body wake flow perturbation features data are the sky that unmanned plane works or formed when moving
Radar reflection wave beam feature caused by refractive index caused by gas turbulent flow and air density change changes.
When analysis module discovery airflow state data include the matched data of the man-machine flow perturbation characteristic of being and not being,
Think that the unmanned plane flow perturbation point position of designated flying zone there may be the unmanned plane of state of flight.
The transmitting radar module and reception radar module are highly sensitive UHF Doppler radar module or V.H.F. radar
Module.
The transmitting radar module includes transmitter；The reception radar module includes receiver, signal processor, data
Processor and display；The transmitting radar module is connected through duplexer with radar antenna with radar module is received；The thunder
It is connected up to antenna with beam scanning generator or servomechanism.
Technical solution of the present invention is the vortex generated when working in the sky for the rotor of multi-rotor unmanned aerial vehicle or solid
The different degrees of variation for determining the atmospheric refraction index that the wake flow that wing unmanned plane body generates is occurred can scatter irregular thunder
It is designed up to this phenomenon of wave beam, it is well known that the irregular variation of atmospheric refraction can generate irregular radar illumination and return
Wave, and atmospheric refraction is irregularly irregular variation (vortex or wake flow internal gas flow by the temperature of air-flow, humidity and density
Flow at high speed) caused by；When unmanned plane during flying, air-flow high-speed motion that vortex or wake flow generate when working in the sky with unmanned plane
And flow, ground radar receiving module can detect the irregular echo that vortex or wake flow are scattered and search for discovery and arrive nobody
Machine；And vortex or wake flow are that unmanned plane works the fundamemtal phenomena that can not be disappeared in the sky, obtain vortex or wake flow is irregular
Radar return information just finds that unmanned plane provides a kind of most direct effective tool for search lighting.
The principle of the invention is unique, is skillfully constructed, feasibility height, and energy effective search finds aerial " low, small, slow " target, energy
Effectively inhibit unmanned plane " black to fly " irregularity, the present invention program is not influenced by unmanned plane material, and due to mechanical
The movement of aircraft and flying bird have larger difference, therefore can easily be distinguish to unmanned plane and flying bird.
Detailed description of the invention
The present invention is described in more detail with reference to the accompanying drawings and detailed description:
Attached drawing 1 is the schematic diagram that unmanned plane generates flow perturbation；
Attached drawing 2 is operation schematic diagram of the invention；
Attached drawing 3 is the composition schematic diagram of radar；
In figure: 1- unmanned plane；2- emits radar module；3- receives radar module.
Specific embodiment
As shown in Figure 1-3, a kind of method of search detecting unmanned plane, for being searched to the unmanned plane 1 in designated flying zone
Rope detecting, the method includes transmitting radar modules 2, the analysis module for receiving radar module 3 and being connected with reception radar module；
The analysis module storage has unmanned plane flow perturbation characteristic when unmanned plane during flying；The transmitting radar is to be set as to finger
Determine the transmitting radar of airspace launching detection radar wave, the radar that the received radar module of analysis module obtains designated flying zone is anti-
Ejected wave beam, and the airflow state data of designated flying zone are analyzed from reflected beam, when to include being and not being man-machine for airflow state data
When the matched data of flow perturbation characteristic, that is, think that designated flying zone there may be the unmanned plane of state of flight.
The transmitting radar module and the quantity for receiving radar module are carried out in one-to-one ratio or one-to-many ratio
Configuration.
The transmitting radar module receives a part that radar module is weather radar, or is the one of Doppler radar
Part.
The unmanned plane include fixed-wing unmanned plane, multi-rotor unmanned aerial vehicle or be provided simultaneously with fixed-wing and more rotors nobody
Machine.
The unmanned plane flow perturbation characteristic includes the vortical disturbance spy generated when unmanned plane rotor works in the sky
Data are levied, further include the body wake flow perturbation features data of unmanned plane.
The vortical disturbance characteristic, body wake flow perturbation features data are the sky that unmanned plane works or formed when moving
Radar reflection wave beam feature caused by refractive index caused by gas turbulent flow and air density change changes.
When analysis module discovery airflow state data include the matched data of the man-machine flow perturbation characteristic of being and not being,
Think that the unmanned plane flow perturbation point position of designated flying zone there may be the unmanned plane of state of flight.
The transmitting radar module and reception radar module are highly sensitive UHF Doppler radar module or V.H.F. radar
Module.
The transmitting radar module includes transmitter；The reception radar module includes receiver, signal processor, data
Processor and display；The transmitting radar module is connected through duplexer with radar antenna with radar module is received；The thunder
It is connected up to antenna with beam scanning generator or servomechanism.
Embodiment:
The lift of multi-rotor unmanned aerial vehicle be mainly derived from air is pushed by rotor blade high speed rotation and is utilized thus to obtain
The active force of downwash flow and generate, therefore rotor upper and lower of the multi-rotor unmanned aerial vehicle in traveling or hovering because blade high speed revolve
It changes the line of production raw vortex.
The wake flow that the vortex or fixed-wing unmanned plane body generated when the rotor of multi-rotor unmanned aerial vehicle works in the sky generates
The different degrees of variation of the atmospheric refraction index occurred can scatter irregular radar beam.The irregular change of atmospheric refraction
Change can generate irregular radar illumination echo, and atmospheric refraction be irregularly by air-flow temperature, humidity and density not
Caused by rule variation (vortex or wake flow internal gas flow flow at high speed).
Air-flow high-speed motion that vortex or wake flow generate when working in the sky with unmanned plane and flow, ground launch radar
The same wave beam that (transmitting radar module) is launched reaches in the swirling air stream of multi-rotor unmanned aerial vehicle, reflects from swirling air stream
Be to the echo for receiving radar (receive radar module) it is different, handled in this way by rear end a series of signal and data processing
Discovery is searched for unmanned plane etc. irregular echo that vortex or wake flow are scattered can be detected.
It is described through the invention since vortex or wake flow are that unmanned plane works the fundamemtal phenomena that can not be disappeared in the sky
After scheme obtains vortex or the irregular radar return information of wake flow, just find that unmanned plane provides one kind most for search lighting
Direct effective tool.
Claims (9)
1. a kind of method of search detecting unmanned plane, for scanning for detecting to the unmanned plane in designated flying zone, feature exists
In: the method includes transmitting radar modules, the analysis module for receiving radar module and being connected with reception radar module；Described point
Analysis module storage has unmanned plane flow perturbation characteristic when unmanned plane during flying；The transmitting radar is to be set as to designated flying zone
The transmitting radar of launching detection radar wave, the received radar module of analysis module obtain the radar return of designated flying zone
Beam, and from reflected beam analyze designated flying zone airflow state data, when airflow state data include the man-machine air-flow of being and not being
When the data of perturbation features Data Matching, that is, think that designated flying zone there may be the unmanned plane of state of flight.
2. a kind of method of search detecting unmanned plane according to claim 1, it is characterised in that: the transmitting radar module
It is configured with the quantity for receiving radar module in one-to-one ratio or one-to-many ratio.
3. a kind of method of search detecting unmanned plane according to claim 1, it is characterised in that: the transmitting radar module
Or receive a part that radar module is weather radar, or a part for Doppler radar.
4. a kind of method of search detecting unmanned plane according to claim 1, it is characterised in that: the unmanned plane includes solid
Determine wing unmanned plane, multi-rotor unmanned aerial vehicle or the unmanned plane for being provided simultaneously with fixed-wing and more rotors.
5. a kind of method of search detecting unmanned plane according to claim 4, it is characterised in that: the unmanned plane air-flow is disturbed
Dynamic characteristic includes the vortical disturbance characteristic generated when unmanned plane rotor works in the sky, further includes the body of unmanned plane
Wake flow perturbation features data.
6. a kind of method of search detecting unmanned plane according to claim 5, it is characterised in that: the vortical disturbance feature
Data, body wake flow perturbation features data are that the air turbulence and air density change that unmanned plane works or formed when moving cause
Refractive index change caused by radar reflection wave beam feature.
7. a kind of method of search detecting unmanned plane according to claim 1, it is characterised in that: when analysis module finds gas
When stream status data includes the man-machine flow perturbation characteristic of being and not being matched data, that is, think the unmanned plane gas of designated flying zone
Flow disturbance point position there may be the unmanned plane of state of flight.
8. a kind of method of search detecting unmanned plane according to claim 1, it is characterised in that: the transmitting radar module
It is highly sensitive UHF Doppler radar module or V.H.F. radar module with radar module is received.
9. a kind of method of search detecting unmanned plane according to claim 8, it is characterised in that: the transmitting radar module
Including transmitter；The reception radar module includes receiver, signal processor, data processor and display；The transmitting
Radar module is connected through duplexer with radar antenna with radar module is received；The radar antenna and beam scanning generator or
Servomechanism is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910177529.3A CN109709543A (en) | 2019-03-09 | 2019-03-09 | A method of search detecting unmanned plane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070089502A1 (en) * | 2003-08-11 | 2007-04-26 | Martin Andrew L | Detection of wake vortices and the like in the lower atmosphere |
| CN102721967A (en) * | 2012-06-21 | 2012-10-10 | 中国人民解放军电子工程学院 | Method for discovering target in air based on disturbance type of wind field |
| CN102759732A (en) * | 2011-04-28 | 2012-10-31 | 谢媛媛 | Novel method for detecting aerodynamic vehicle |
| CN107678023A (en) * | 2017-10-10 | 2018-02-09 | 芜湖华创光电科技有限公司 | A kind of passive location and identifying system to civilian unmanned plane |
| CN210072069U (en) * | 2019-03-09 | 2020-02-14 | 福建星图智控科技有限公司 | Unmanned aerial vehicle's device is listened in search |
-
2019
- 2019-03-09 CN CN201910177529.3A patent/CN109709543A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070089502A1 (en) * | 2003-08-11 | 2007-04-26 | Martin Andrew L | Detection of wake vortices and the like in the lower atmosphere |
| CN102759732A (en) * | 2011-04-28 | 2012-10-31 | 谢媛媛 | Novel method for detecting aerodynamic vehicle |
| CN102721967A (en) * | 2012-06-21 | 2012-10-10 | 中国人民解放军电子工程学院 | Method for discovering target in air based on disturbance type of wind field |
| CN107678023A (en) * | 2017-10-10 | 2018-02-09 | 芜湖华创光电科技有限公司 | A kind of passive location and identifying system to civilian unmanned plane |
| CN210072069U (en) * | 2019-03-09 | 2020-02-14 | 福建星图智控科技有限公司 | Unmanned aerial vehicle's device is listened in search |
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