CN205621848U - Portable aerial target information acquisition device - Google Patents
Portable aerial target information acquisition device Download PDFInfo
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- CN205621848U CN205621848U CN201620028542.4U CN201620028542U CN205621848U CN 205621848 U CN205621848 U CN 205621848U CN 201620028542 U CN201620028542 U CN 201620028542U CN 205621848 U CN205621848 U CN 205621848U
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Abstract
The utility model discloses an aerial target information acquisition device, include: the support is including servo turntable and a plurality of supporting legs of ability folding, the servo turntable sets up on the servo turntable, microstrip antenna is including fixing metal level on the servo turntable is located the metal level top is the flat dielectric substrate, and set up the antenna of a plurality of arrays on the dielectric substrate, aerial target information acquisition device's weight is less than 25kg. Through setting the support to including collapsible and flexible supporting leg, replace into microstrip antenna with ordinary antenna, can reduce aerial target information acquisition device's volume and weight effectively to make and be convenient for install and be convenient for the transport, save manpower and material resources.
Description
Technical field
The utility model relates to Aerial Targets Information acquisition device technical field, particularly a kind of target information acquisition device minimizing and can carrying out the aircraft installing response additional detection tracking.
Background technology
With scientific and technological development and progress, the application of the airborne aircraft such as such as aircraft is more and more extensive.How control effectively is carried out to air traffic or monitoring is the important topic that people study.The beginning of the sixties, International Civil Aviation Organization confirmed the basic component devices that secondary radar is air traffic control (ATC) system.Within 2008, successfully develop all solid state secondary surveillance radar with S mode.In recent years, secondary radar (SSR) is as high-precision pulse (time) range finding/direction-finding system, it has also become the main supervision equipment in air traffic control (ATC) system, has obtained applying widely in army's boat, civil aviaton etc..
The mode of operation of secondary radar is that ground radar launches radar wave to such as target aircraft, and target aircraft carries out response in the corresponding way.As secondary radar generally comprises antenna, signal reception and processing equipment.A kind of secondary radar answer-back simulator, it includes power module, display control module, receiver, emitter.Signal processing module the first port, signal processing module the second port are connected with display control module, receiver Single port both-way communication respectively, and signal processing module the 3rd port receives passage with secondary radar system transmission channel, secondary radar system respectively and is connected.In use, secondary radar answer-back simulator receives the request signal of secondary radar system and goes forward side by side row decoding process, then replys secondary radar accordingly.Secondary radar receives the return signal of secondary radar answer-back simulator, and processes.By secondary radar and secondary radar answer-back simulator, controller it is known that such as aircraft numbering, highly, the parameter such as direction, the appearance of secondary radar is the technology development the most great of air traffic control.Secondary radar i.e. can work independently, it is also possible to primary radar cooperating.
During the use of secondary radar, antenna converges in electromagnetic energy in narrow beam, when antenna beam axis is to standard target, echo-signal is the strongest, when target deviation antenna beam axis when echo-signal weaken, be typically based on receive echo the strongest when antenna beam point to, i.e. can determine that the direction of target.Therefore, antenna is the important composition parts of secondary radar, is also the vitals of restriction secondary radar development.The antenna size of conventional secondary radar is huge, and width, typically at 8-10m, adds the parts such as servo turntable, and secondary radar weighs upper ton.Therefore, it is generally required to use the concreting antenna base that bearing capacity is bigger, and need to be installed by lifting.Or, antenna base is by four foundation posts, and is connected pilum by reinforcement so that the heavier-weight of antenna base, is not easy to carrying etc..
Therefore, one of those skilled in the art's technical issues that need to address are exactly, and how to solve the bigger problem of existing secondary radar volume and weight.
Utility model content
The utility model provides a kind of Aerial Targets Information acquisition device, mitigated the weight of Aerial Targets Information acquisition device by arranging the support of microstrip antenna and simple in construction, to facilitate carrying or individual soldier to bear, increase the purposes of Aerial Targets Information acquisition device further.
One of the present utility model portable Aerial Targets Information acquisition device, including be provided with the support of servo turntable and multiple supporting leg, the servo turntable being arranged on described servo turntable and the microstrip antenna being connected with described servo turntable, described microstrip antenna includes the metal level being fixed on described servo turntable, be positioned at described metal layer and be flat dielectric substrate, and the antenna of the multiple arrays being arranged on described dielectric substrate
Wherein, the weight of described Aerial Targets Information acquisition device is less than 25kg.
Preferably, what described Aerial Targets Information acquisition device was arranged in described microstrip antenna is smaller in size than 1000 × 200 × 23mm3And on the basis of weight≤3.5kg, realize high-gain, big zero deep and/poor (∑/△) binary channels ability.
Preferably, also include fixing, with described servo turntable, the main frame being connected, wherein said main frame be placed on described servo turntable and with described servo turntable clamping.
Preferably, it is provided with three spaced apart described supporting legs on described servo turntable, the lower section of wherein said servo turntable is provided with the guiding groove for guiding the first supporting leg to move towards supporting leg two other described, three described supporting legs are arranged in described first supporting leg and move to fold or open after two other described supporting leg
Preferably, described dielectric substrate is in use provided with cushion near one end of described first supporting leg,
It is further preferable that the bottom of each described supporting leg is provided with threaded fine setting pipeline section.
Preferably, described dielectric substrate, servo turntable and main frame are sealing structure,
Preferably, the cabinet of described main frame is milling structure, and the gap of described cabinet is provided with waterproof layer,
Spray paint it is further preferable that the outside of described main frame is provided with camouflage color.
Preferably, also including the equipment knapsack using ergonomic designs, braces and the knapsack periphery of described equipment knapsack all have foam-filled.
Preferably, the radio signal transmission of described Aerial Targets Information acquisition device uses coaxial cable, and analog signal transmission uses coaxial cable, and digital data transmission uses shielded cable.
Preferably, described antenna includes 4 rectangular patches of horizontal array, 2 two derived power distributors, 1 branch line directional coupler, and wherein, 4 described rectangular patches are connected with branch line directional coupler respectively through 2 Wilkinson power splitters.
Preferably, each rectangular patch all includes bottom layer of patches and upper strata paster, the size of described bottom layer of patches is 127mm × 127mm, the size of upper strata paster little 7mm than bottom layer of patches, wherein, four unit forms are selected to be optimized design to the width phase distribution of microstrip antenna, with unit homophase during wave beam, amplitude distribution is taper distribution, microstrip antenna symmetrical both sides phase 180 ° during difference beam, use Wilkinson power divider power up the amplitude distribution that bridge realizes microstrip antenna, it is achieved the homophase of each microstrip antenna with anti-phase.
Preferably, described branch line directional coupler is four port networks, and between 1 port to 2 ports, path is served as theme, and between 3 ports to 4 ports, path is served as theme, and the line between two main lines is branch line, and the length of main line and branch line is all near being 1/4th operation wavelengths.
Preferably, 2 described two derived power distributors are three-port network, and 2 described Wilkinson power splitters introduce isolation resistance on the basis of described two derived power distributor, are the three-port network having consumption.
The method of a kind of Aerial Targets Information acquisition device acquisition Aerial Targets Information according to above-mentioned of the present utility model, it is characterised in that include:
Step s1, selects objective, sets up Aerial Targets Information acquisition device；
Step s2, carries out leveling to described microstrip antenna, makes described microstrip antenna be horizontally oriented；
Step s3, starts power supply and north, automatic school pattern, carries out positive north calibration automatically to equipment.
Step s4, startup A/C tupe, and complete reception and the process of Aerial Targets Information, A/C tupe i.e. uses A, C alternate mode to scan for inquiry to the aerial aircraft in sky；If receiving response, then recording the azimuth-range of this aircraft, being determined the accurate orientation of aircraft by signal processing algorithm；
Step s5, after described Aerial Targets Information acquisition device completes work, fold described support and pack up described Aerial Targets Information acquisition device, wherein when folding described support, first described first supporting leg is moved close to remaining two supporting leg, described microstrip antenna is tiltedly put on the ground, then fold three described supporting legs.
Preferably, in step s3, based on described microstrip antenna, use the orthogonal double channels reception processing of conforming amplitude A and phase, and difference beam slide window processing technology, thus realize high accuracy Monopulse estimation.
Preferably, in step s3, compatible processing 1090ES ADS-B signal, receive ADS-B signal by ADS-B isotropic receiving antenna, through image frequency suppression, mixing, logarithm is put, the sampling of intermediate frequency high-speed a/d, digital filtering, interference target signal filter, multi-objective, information decoding, verification acquisition ADS-B infomational message；
The positioning time-code information arranging GPS/BD positioning time service module is that ADS-B message adds time stamp, then carries out resolving and provide the positional information of aerial target, destination address, nationality, state of flight attribute information to message.
Preferably, in step s4, detection region is from top to bottom divided into first area and second area, and measures its residing region according to the elevation angle and the oblique distance of aerial target；When aerial target is in second area and moves closer to described Aerial Targets Information acquisition device, polar coordinates are converted to rectangular coordinate system, and based on rectangular coordinate system, the position of aerial target are updated；According to the position of aerial target, calculate the real-time update cycle of aerial target, and preserve the update cycle.
Preferably, in step s4, after decoding, obtained the position of aerial target by code value after, XOR is carried out with the address in Aerial Targets Information acquisition device；When XOR value is zero, then code is correct, by code value output to asynchronous suppression circuit, if XOR value is not zero, then carry out correction process, after correction process completes, it is judged that whether error correction is successful, if success, then by correct code output to asynchronous suppression circuit, if unsuccessful, then abandon this code.
Relative to prior art, Aerial Targets Information acquisition device of the present utility model includes support, servo turntable and microstrip antenna.By support being arranged to include collapsible and flexible supporting leg, ordinary antennas is replaced to microstrip antenna, the volume and weight of Aerial Targets Information acquisition device can be efficiently reduced, so that being easily installed and being easy to carrying, save man power and material.
Additionally, it no matter is made up of microstrip antenna, main frame, servo turntable, four parts of support, or being made up of microstrip antenna, main frame (contain servo turntable), three, support part and constituting a complete Aerial Targets Information acquisition device, the gross weight of Aerial Targets Information acquisition device is both less than 25 kilograms.
Microstrip antenna be smaller in size than 1000 × 200 × 23mm3, and on the basis of weight≤3.5kg, it is achieved that high-gain, big zero deep and/poor (∑/△) binary channels ability, this is the prerequisite realizing high precision angle-measuring.
Servo turntable and main frame are arranged to integral structure, decrease the cable between servo turntable and main frame to greatest extent and connect quantity and length, improve anti-electromagnetic interference capability, alleviate weight, reduce cost, it is simple to move transport, erection and dismounting are installed；And there is good airproof performance, the waterproof feature such as anti-dust, significantly enhance reliability and service life.
Brief description
Hereinafter based on embodiment and with reference to accompanying drawing, the utility model will be described in more detail.
Fig. 1 is the structural representation of Aerial Targets Information acquisition device of the present utility model,
Fig. 2 is the first structural representation of microstrip antenna of the present utility model,
Fig. 3 is structural representation when being provided with multiple rectangular patch for the utility model,
Fig. 4 is the structural representation of power splitter of the present utility model；
Fig. 5 is the structural representation of branch line directional coupler of the present utility model；
Fig. 6 is the attachment structure schematic diagram of servomotor of the present utility model and main frame.
Wherein, support-1, servo turntable-2,
Microstrip antenna-3, main frame-4,
Servo turntable-11, supporting leg-12 first supporting leg 121.
Detailed description of the invention
Below in conjunction with accompanying drawing, Aerial Targets Information acquisition device of the present utility model and method are further described.
As it is shown in figure 1, Aerial Targets Information acquisition device of the present utility model includes support the 1st, servo turntable 2 and microstrip antenna 3.Support 1 includes servo turntable 11 and is connected with servo turntable 11 and is supported on the multiple supporting legs 12 below servo turntable 11.When arranging supporting leg 12, supporting leg 12 is arranged towards outside and tilts, to improve steadiness during support.Be provided with groove in the lower section of servo turntable 11, supporting leg 12 is arranged to side that is flexible and that can be folded in servo turntable 11, preferably can be folded in the groove of servo turntable 11.Servo turntable 2 is fixed on the top of servo turntable 11.Microstrip antenna 3 includes the metal level being connected with servo turntable 2, is positioned at metal layer and becomes flat dielectric substrate, and the rectangular patch 31 of the multiple one-tenth array formats being arranged on dielectric substrate.By support 1 being arranged to include collapsible and flexible supporting leg 12, ordinary antennas is replaced to microstrip antenna 3, the volume and weight of Aerial Targets Information acquisition device can be efficiently reduced, so that being easily installed and being easy to carrying, save man power and material.Certainly, dielectric substrate also can be processed into engraved structure, to mitigate the weight of dielectric substrate.
In one embodiment, as shown in Figure 2, microstrip antenna includes the rectangular patch (preferably rectangular air microstrip paster) in 4 figures, and the rectangular patch (radiation patch) of microstrip antenna is the rectangular sheet of a × b, and the thick h of substrate (is approximately part wavelength).Microstrip antenna can be equivalent to that a section termination presents open-circuit condition, length is a, the transmission line of wide b.The voltage of microstrip antenna end is antinodal point.Assuming that the electric field of microstrip antenna excitation is unchanged with substrate thickness and radiating element width, size and direction are only with length (L ≈ λ/2) the direction change of rectangular patch.
In one embodiment, as it is shown on figure 3, microstrip antenna includes being positioned at 4 rectangular patches at middle part, 2 two derived power distributors and two Wilkinson power splitters and 1 branch line directional coupler.Wherein 4 rectangular patches are connected with branch line directional coupler respectively through 2 Wilkinson power splitters.Microstrip antenna, in the case of introducing driving source, can produce radiation field, and the radiation field of microstrip antenna is mainly by the gap generation between rectangular patch and floor between rectangular patch and floor.
Each rectangular patch all includes bottom layer of patches and upper strata paster, and the size of bottom layer of patches is 127mm × 127mm, the size of upper strata paster little 7mm (all little 7mm of length and width) than bottom layer of patches.Wherein, four unit forms are selected to be optimized design to the width phase distribution of microstrip antenna, with unit homophase during wave beam, amplitude distribution is taper distribution, microstrip antenna symmetrical both sides phase 180 ° during difference beam, use Wilkinson power divider power up the amplitude distribution that bridge realizes microstrip antenna, it is achieved the homophase of each microstrip antenna with anti-phase.
Further, as shown in Figure 4, two derived power distributors belong to typical three-port network.From the fundamental property of lossless reciprocity three-port network, its three ports can not mate simultaneously, and without isolation between each port.Wilkinson power splitter mainly introduces isolation resistance on the basis of simple dichotomy's power divider, thus realizes coupling and the high degree of isolation of signal link.After its principle is to introduce isolation resistance, power splitter becomes the three-port network having consumption.From the fundamental property of three-port network, have three ports of consumption three-port network to mate completely and between each port isolation higher.The structural representation of two derived power distributors and equivalent circuit as Figure 2-3, if the work(proportion by subtraction of power splitter the 1st, 2 two ports is k1:k2。
Further, as it is shown in figure 5, the typical structure of branch line directional coupler is four symmetrical port networks, when 1 port is input port, and 4 ports are isolated ports, the 2nd, 3 ports are output port.1 port is served as theme to the path of 2 ports, and its characteristic impedance is designated as Zb, 3rd, same be also main line between 4 mouthfuls；Line between two main lines is branch line, and its characteristic impedance is designated as Za.Four port identity impedances are Z0.The length of main line and branch line is all approximately 1/4th operation wavelengths, and the 2nd, 3 output ports can obtain phase quadrature, and the work(proportion by subtraction of output port is determined by network parameter.
In addition, be provided with three supporting legs 12 in the lower section of servo turntable 11.The steadiness of three supporting legs 12 is preferable, and negligible amounts, to mitigate the weight of Aerial Targets Information acquisition device further, consequently facilitating move or carry.The material of three supporting legs 12 can be metal, in order to realizes altogether, improving security performance when using.And three supporting legs 12 can be hollow tubular structure, to mitigate the weight of support 1 further.
The all main hollow pipeline section by the sheathed connection of multistage of three supporting legs 12 is constituted.Connected by spacing preiection between two adjacent hollow pipeline sections, to prevent two hollow pipes from departing from.And between two adjacent hollow pipeline sections, it is additionally provided with the buckling groove cooperating and clamping projection.Clamping projection can moving radially along hollow pipeline section.It when needs elongate support leg 12, is directed away from direction each other and moves one of them hollow pipeline section, till clamping projection is connected in buckling groove.When needs shorten supporting leg 12, pressing clamping projection, clamping is protruding to be departed from buckling groove, moves one of them hollow pipeline section towards near direction each other.Hollow pipeline section can be provided with at least three sections, arranges at various height microstrip antenna 3 as required to facilitate.One section of threaded fine setting pipeline section can also be set in the lower end of supporting leg 12, in order to realizes the fine setting of supporting leg 12.For example, when ground out-of-flatness, the leveling of microstrip antenna 3 is realized by regulation fine setting pipeline section.Arrange by the way, simple in construction, lightweight, low cost, install, easy to use, save trouble and labor.
Further, servo turntable 11 can be the rectangular plate-like structure of hollow out, to mitigate the weight of servo turntable 11.It is provided with in the lower section of servo turntable 11 for guiding the guiding groove towards the motion of two other supporting leg 12 for one of them supporting leg 12 (for convenience of description, the referred to as first supporting leg 121).When folding support 1, the first supporting leg 121 is promoted to move along guiding groove, until being positioned at one end near two other supporting leg 12 of guiding groove, then will control target information acquisition device slant setting (microstrip antenna 3 is also supported on ground) on the ground, finally fold each supporting leg 12.It is arranged such, when the height of supporting leg 12 higher (such as more than two meters), and during the heavier-weight of microstrip antenna 3 (such as more than 20 kilograms), even if individual soldier bears in the wild, uses aerial target recoil simulator, also oneself to complete the folding of support 1 and can open, use aerial target recoil simulator to provide possibility for individual soldier further.
First supporting leg 121 and other two supporting legs 12 all hinged with servo turntable 11 (such as ball-joint) are arranged.When not needing to use support 1, three supporting legs 12 all can turn to substantially parallel with the bottom surface of servo turntable 11 position of its axis direction, then it is folded in supporting leg 12 in the groove of servo turntable 11, to reduce the volume of support 1 further, consequently facilitating realize that individual soldier bears again.Reinforcement can also be set between supporting leg 12, to improve the steadiness of support 1.
It is further preferable that cushion can be provided with on the dielectric substrate of microstrip antenna 3.Cushion arranges the one end near the first supporting leg 121 being in use positioned at dielectric substrate.When needs folding supporting legs 12 is by microstrip antenna 3 slant setting during ground, by cushion reduce in the face of the impulsive force of microstrip antenna 3, improve security and the service life of microstrip antenna 3.Cushion can be plastic foam, to mitigate the weight of Aerial Targets Information acquisition device.
Of course, it is possible to the lower section at servo turntable 11 does not arranges guiding groove, three supporting legs 12 are fixed on certain some position of servo turntable 11 all in articulated manner.When folding supporting legs 12, realized the folding of folding leg by the cooperation of many people.
Additionally, Aerial Targets Information acquisition device also includes the main frame 4 that be connected fixing with servo turntable 2.Main frame 4 is placed on servo turntable 11 and is connected with servo turntable 11 by the such as snap fit such as draw-in groove and bayonet fittings, to realize the installation and removal quickly and easily of main frame 4.When pin is arranged in draw-in groove, lock pin by locking piece, to improve the fix tightly solidity of main frame 4.
The cabinet of main frame 4 can be processed by milling mode, and is changed into integral type cabinet by original march-past cabinet.So design can be accomplished waterproof and dampproof, also can increase the fastness of main frame 4 simultaneously.In Milling Processes, process the radiation tooth of cabinet, in order to better heat radiation, and in the gap of main frame 4, be filled with waterproof layer, to improve sealing.During processing cabinet, engraved structure, for sealing structure, is processed into, to mitigate the weight of main frame 4 in the inside of cabinet by the outside of type.Also can add waterproof pad in each connection of cabinet, to reach waterproof, moistureproof purpose at gap.It is also carried out improving to the various components inside of main frame 4, the profile of each module and interface mode can be carried out improving, to reduce interface quantity, the external interface of main frame 4 can be provided only with a network interface and a power interface, reaches the condition of integral type cabinet to reduce module volume and weight.The exterior color of main frame 4 uses camouflage color to spray paint, to reach appearance color demand.
Main frame 4 be internally provided with embedded 1090ES ADS-B base station receiver, A/C mode query device, to complete the detection under A/C pattern.Small-sized ADS-B antenna is external and can conveniently dismantle, and is integrated with GPS/BD receiver module and miniature antenna thereof, can optionally GPS or BD pattern work, it is possible to share both of which.
As shown in Figure 6, servo turntable 2 is placed directly within the cabinet top of main frame 4, constitute a complete independent subject, decrease the cable between servo turntable 2 with main frame 4 to greatest extent and be connected quantity and length, improve anti-electromagnetic interference capability, alleviate weight, reduce cost, it is easy to move transport, erection and dismounting are installed, significantly enhance reliability and service life.
Each module of Aerial Targets Information acquisition device and parts are all provided with waterproof layer Seal Design in outside, use requirement to meet the rainy day.Microstrip antenna the 3rd, servo turntable the 2nd, several vitals such as main frame 4 are Seal Design and moisten into equipment to ensure that rainwater can not be invaded.Linker between other modules all uses military waterproof connector, can accomplish preferable waterproof effect.
Additionally, without the measure of shielding between each module of Aerial Targets Information acquisition device, between interference can be very big, electromagnetic compatibility also is difficult to the requirement reaching to need, therefore the shell all using aluminium alloy between modules encapsulates, and the holding wire of high frequency and intermediate frequency all uses shielding line to transmit signal.
The utility model needs because of field studies, so mainly using battery powered mode.Pre-counter device total power consumption≤100W/ hour, Selection of Battery jumbo dynamic lithium battery 48V/5.2A.Due to battery in use, voltage can elapse with the use time and gradually reduce, and therefore battery out-put supply needs to be transported to modules again after power module is processed.
Aerial Targets Information acquisition device possesses certain lightning protection capability, so that when running into Lightning Disaster, loss is preferably minimized.All modules and parts are altogether in the design process, to greatest extent thunder and lightning are imported among the earth when running into thunder and lightning, and the feeder line end of microstrip antenna 3 has special lightning-protection module simultaneously.If run into Lightning Disaster, loss can be reduced to greatest extent.
In addition, the radio signal transmission of Aerial Targets Information acquisition device uses coaxial cable；Analog signal transmission uses coaxial cable；Digital data transmission uses shielded cable；The holding wire being easily disturbed should select coaxial cable with the holding wire being easily generated interference；Easily being disturbed cable and should being arranged in the place away from power line, transformer and other higher power device, high frequency, low frequency wire separate wrapping；Analog signal transmission cable and digital signal transmission cable should be arranged apart.
The Receiver Module of Aerial Targets Information acquisition device uses high-conductivity aluminum alloy material shield, and whole module is placed in shielding cavity, disturbs other modules to reduce revealing of radiofrequency signal and shields the interference to radio-frequency module for other modules；In device, high performance electromagnetic interface filter selected by trunk branch road of powering.PCB rational deployment and optimization cabling.Simulate ground and digitally separate.In addition, this Aerial Targets Information acquisition device uses the extensive on-site programmable gate array FPGA of advanced person, high-speed digital video camera DSP, CPU+ARM module, built-in PC display control module.
The equipment knapsack of Aerial Targets Information acquisition device uses ergonomic designs, and braces and knapsack periphery all have Special Foam to fill, and to ensure that contact personnel are not hindered by equipment metal shell, ensures comfortableness when bearing simultaneously.Equipment can also be protected as far as possible not damaged by external force in long-time transportation.
Arranging by the way, all modules of Aerial Targets Information acquisition device and parts are adapted to the needs of Field Operational and scouting, use material lightweight, that fastness is high (as support 1 uses aluminium alloy) to be designed.The quality of this Aerial Targets Information acquisition device can≤25kg, and cumulative volume is suitable for individual soldier and bears., various cables all use concealed design, and outward appearance neat and tidy is generous.The utility model requires in strict accordance with International Civil Aviation Organization's ICAO annex 10 (ANNEX 10), RTCA-DO 260B related specifications, and combine the particular/special requirement of the practical situations of army of China boat, civil aviaton, it miniature precision micro-strip flat plate array pulse and difference antenna have been specifically designed, it is achieved that high precision angle-measuring；Use antenna, the integrated design of servo turntable the 2nd, main frame 4, it is achieved that the miniaturization of device and portable functional, be suitable for kinds of platform and application scenarios, be greatly expanded range of application.
In step s4, detection region is from top to bottom divided into first area and second area, and measures its residing region according to the elevation angle and the oblique distance of aerial target；When aerial target is in second area and moves closer to described Aerial Targets Information acquisition device, polar coordinates are converted to rectangular coordinate system, and based on rectangular coordinate system, the position of aerial target are updated；According to the position of aerial target, calculate the real-time update cycle of aerial target, and preserve the update cycle.As such, it is possible to the air position next time of prediction aerial target, can realize more accurately following the tracks of and to monitor.
In step s4, after decoding, obtained the position of aerial target by code value after, carry out XOR with the address in Aerial Targets Information acquisition device；When XOR value is zero, then code is correct, by code value output to asynchronous suppression circuit, if XOR value is not zero, then carry out correction process, after correction process completes, it is judged that whether error correction is successful, if success, then by correct code output to asynchronous suppression circuit, if unsuccessful, then abandon this code, can realize more accurately following the tracks of and to monitor.
In one more specifically using method, Aerial Targets Information acquisition device use small microstrip flat plate array pulse and/poor (∑/△) antenna, integration servo turntable 2/ main frame when the 4th, detachable lifting support 1 and GPS/BD is two-in-one base position antenna, built-in embedded 1090ES ADS-B receiver, small-sized ADS-B antenna.Can be based on small microstrip flat plate array pulse and/poor (∑/△) antenna, by using the orthogonal double channels reception processing of conforming amplitude A and phase, and high-gain/high zero deep and poor (∑/△) antenna processing, difference beam slide window processing technology, to realize high accuracy Monopulse estimation.
When needing to obtain Aerial Targets Information, step s1, first select objective, and set up Aerial Targets Information acquisition device；Step s2, carries out leveling to microstrip antenna 3, so that microstrip antenna 3 is horizontally oriented, improves sensitivity during reception information；Step s3, starts power supply and north, automatic school pattern, carries out positive north calibration automatically to equipment.Step s4, starts AC tupe, scans for whole spatial domain, i.e. uses A, C alternate mode to scan for inquiry to the aerial aircraft in sky；If receiving response, then recording the azimuth-range of this aircraft, being determined the accurate orientation of aircraft by signal processing algorithm.Step s5, after the reception of Aerial Targets Information to be done and process, folding rack 1, and pack up A/C detection device.
In step s4, operation principle and flow process are as follows: the utility model is based on utonomous working mode, by to air-launched Mode A/C (A/C pattern) request signal, trigger and after the corresponding answer signal of reception processing aerial target, calculate this Aerial Targets Information acquisition device to the distance (oblique distance) of this aerial target, and the Mode C answer signal of this aerial target of reception processing can draw (air pressure) of this aerial target highly.During signal reception processing, real-time high accuracy pulse and poor reception treatment technology can be used to calculate the azimuth of this aerial target, so can obtain distance, height and the azimuth information (also translating to target corresponding rectangular co-ordinate position as required) of this aerial target in real time, it is achieved thereby that the Detection location of target in AIR.
Resolve measurement continuously, incessantly by above-mentioned, the locating and tracking to aerial target can be completed；Under sighting condition, the continuous output of track of the target aircraft can be realized.The 1090ES ADS-B signal of the compatible process of this Aerial Targets Information acquisition device simultaneously, receive ADS-B signal by ADS-B isotropic receiving antenna, through image frequency suppression, mixing, logarithm is put, the sampling of intermediate frequency high-speed a/d, digital filtering, interference target signal filter, multi-objective, information decoding, the acquisition ADS-B infomational message such as verification；The positioning time-code information arranging GPS/BD positioning time service module is that ADS-B message adds time stamp, then carry out resolving and provide the attribute informations such as the positional information of aerial target, destination address, nationality, state of flight to message, send computer to carry out Track In Track and show and other application.Aerial Targets Information acquisition device positions, by receiving GPS/BD, the initial point that the positioning information (longitude, latitude) obtaining after time service module is processed can be changed to rectangular co-ordinate by coordinate transform, provides A/C mode detection positioning to use (school is northern).Because using pulse real-time, high-precision and difference treatment technology, the utility model scheme has anti-false target deception ability very by force, identifies that the probability of decoy is very high, ensures that the confidence level of institute's Detection location target output.
Monopulse ranging in the utility model scheme is located through scanning in the range of 360 ° for the microstrip antenna 3 and realizes, the digital servomotor output antenna bearingt angle information of Aerial Targets Information acquisition device is to signal processor simultaneously, correspondence can go out the true bearing residing for target.
A/C mode detection subsystem operation principle is as follows: if it is to be understood that the orientation of target to be measured, first has to determine residing for the accurate location of oneself and antenna butt position really.Use the two-in-one module of high-precision GPS/BD to carry out position correction to this base station, to obtain system position accurately at this.GPS pattern i.e. can be used, it is possible to use Big Dipper BD pattern during position correction.
Owing to A/C pattern answering machine cannot broadcast the information of self voluntarily, it is therefore desirable to carry out inquiry triggering to it and obtain corresponding information.First whole spatial domain is scanned for, i.e. scan for inquiry to the aerial aircraft in sky with only A interrogation mode query mode.If having received response, then show spatial domain exists the only aircraft equipped with A/C pattern answering machine to exist, record the approximate location angle of this aircraft simultaneously, then use only A and only C mode alternate interrogation improve interrogation frequency and determine its orientation more accurately when upper once microstrip antenna 3 rotates near this azimuth.From the characteristic with difference antenna, when amplitude difference A △=max (∑-△), then can determine whether this target in this position.Again by the C code obtained by C mode inquiry, then can parse the height of target.The oblique distance of remaining target then can determine according to the speed that electromagnetic wave is propagated in the air, such as formula
D=C × (T-3us)/2
Wherein C is light velocity 300000km/s, and T is the interval time between the rising edge of last pulse of request signal and the rising edge receiving first pulse of answer signal, and 3us is the fixed delay time of answering machine.
The parameters of this Aerial Targets Information acquisition device is provided that
Tranmitting frequency: 1030MHz ± 6～8MHz；
Reception frequency: 1090MHz ± 6～8MHz；
Receiving sensitivity :-81dBm；
Dynamic range: 60dB
Launch power: >=250W
Standing-wave ratio :≤1.5
Weight of equipment :≤25kg；
Although the utility model being described by reference to preferred embodiment, but in the case of without departing from scope of the present utility model, various improvement can be carried out to it and parts therein can be replaced with equivalent.Especially, as long as there is not structural hazard, the every technical characteristic being previously mentioned in each embodiment all can combine in any way.The utility model is not limited to specific embodiment disclosed herein, but includes all technical schemes falling within the scope of the appended claims.
Claims (14)
1. an Aerial Targets Information acquisition device, it is characterised in that being made up of microstrip antenna, main frame, servo turntable, four parts of support, its gross weight is both less than 25 kilograms,
It is provided with three spaced apart supporting legs on described servo turntable, the lower section of wherein said servo turntable is provided with the guiding groove for guiding the first supporting leg to move towards supporting leg two other described, and three described supporting legs are arranged in described first supporting leg and move to fold or open after two other described supporting leg.
2. Aerial Targets Information acquisition device according to claim 1, it is characterized in that, be smaller in size than 1000 × 200 × 23mm3 at it, and on the basis of weight≤3.5kg, achieving high-gain, big zero deep and/difference binary channels ability, this is the prerequisite realizing miniaturization high precision angle-measuring.
3. Aerial Targets Information acquisition device according to claim 1, it is characterised in that also include fixing, with described servo turntable, the main frame being connected, wherein said main frame be placed on described servo turntable and with described servo turntable clamping.
4. Aerial Targets Information acquisition device according to claim 1, it is characterised in that dielectric substrate is in use provided with cushion near one end of described first supporting leg.
5. Aerial Targets Information acquisition device according to claim 1, it is characterised in that the bottom of each described supporting leg is provided with threaded fine setting pipeline section.
6. Aerial Targets Information acquisition device according to claim 4, it is characterised in that described dielectric substrate, servo turntable and main frame are sealing structure.
7. Aerial Targets Information acquisition device according to claim 2, it is characterised in that the cabinet of described main frame is milling structure, and the gap of described cabinet is provided with waterproof layer.
8. Aerial Targets Information acquisition device according to claim 2, it is characterised in that the outside of described main frame is provided with camouflage color and sprays paint.
9. Aerial Targets Information acquisition device according to claim 1, it is characterised in that also including the equipment knapsack using ergonomic designs, braces and the knapsack periphery of described equipment knapsack all have foam-filled.
10. Aerial Targets Information acquisition device according to claim 1, it is characterised in that the radio signal transmission of described Aerial Targets Information acquisition device uses coaxial cable, analog signal transmission uses coaxial cable, and digital data transmission uses shielded cable.
The 11. Aerial Targets Information acquisition device according to according to any one of claim 1-10, it is characterized in that, described microstrip antenna includes 4 rectangular patches of horizontal array, 2 two derived power distributors, 1 branch line directional coupler, wherein, 4 described rectangular patches are connected with branch line directional coupler respectively through 2 Wilkinson power splitters.
12. Aerial Targets Information acquisition device according to claim 11, it is characterized in that, each rectangular patch all includes bottom layer of patches and upper strata paster, the size of described bottom layer of patches is 127mm × 127mm, the size of upper strata paster little 7mm than bottom layer of patches, wherein, four unit forms are selected to be optimized design to the width phase distribution of microstrip antenna, with unit homophase during wave beam, amplitude distribution is taper distribution, microstrip antenna symmetrical both sides phase 180 ° during difference beam, Wilkinson power divider is used to power up the amplitude distribution that bridge realizes microstrip antenna, realize the homophase of each microstrip antenna with anti-phase.
13. Aerial Targets Information acquisition device according to claim 11, it is characterized in that, described branch line directional coupler is four port networks, between 1 port to 2 ports, path is served as theme, between 3 ports to 4 ports, path is served as theme, and the line between two main lines is branch line, and the length of main line and branch line is all near being 1/4th operation wavelengths.
14. Aerial Targets Information acquisition device according to claim 11, it is characterized in that, 2 described two derived power distributors are three-port network, and 2 described Wilkinson power splitters introduce isolation resistance on the basis of described two derived power distributor, are the three-port network having consumption.
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| CN201620028542.4U CN205621848U (en) | 2016-01-12 | 2016-01-12 | Portable aerial target information acquisition device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666743A (en) * | 2018-04-16 | 2018-10-16 | 浙江大学 | The cross polarization planar array antenna designed using cross polarization suppressing method |
| CN109324631A (en) * | 2018-09-19 | 2019-02-12 | 北京机械设备研究所 | A kind of photoelectronic tracking device auxiliary body having positioning direction-measuring function |
| CN111337888A (en) * | 2020-04-13 | 2020-06-26 | 北京航天长征飞行器研究所 | Dense decoy jamming method, computer device and computer readable storage medium |
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- 2016-01-12 CN CN201620028542.4U patent/CN205621848U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666743A (en) * | 2018-04-16 | 2018-10-16 | 浙江大学 | The cross polarization planar array antenna designed using cross polarization suppressing method |
| CN109324631A (en) * | 2018-09-19 | 2019-02-12 | 北京机械设备研究所 | A kind of photoelectronic tracking device auxiliary body having positioning direction-measuring function |
| CN111337888A (en) * | 2020-04-13 | 2020-06-26 | 北京航天长征飞行器研究所 | Dense decoy jamming method, computer device and computer readable storage medium |
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