CN212255695U - Ku-waveband four-side array two-dimensional digital array low-altitude early warning radar - Google Patents

Abstract

The utility model discloses a Ku wave band four-side array two-dimensional digital array low-altitude early warning radar, which comprises a four-side array radar shell, wherein the phased array antenna array surfaces are all installed by adopting elevation inclination of 15 degrees, and four phased array antenna array surfaces cover a range of 360 degrees; the periphery bottom of four sides array radar casing is provided with the fan, every all the intercommunication is provided with big air outlet, the little air outlet in the right side and the little air outlet in a left side on the tuyere subassembly, big air outlet is total four and the air-out end is towards the corresponding side of quick-witted case respectively, lies in same one side the air-out end of the little air outlet in the right side and the little air outlet in a left side all faces the phased array antenna array face of homonymy and the department of pasting of four sides array radar casing mutually. The utility model provides a Ku wave band four sides array two-dimensional digital array low latitude early warning radar can realize 360 all-round covers, need not mechanical slewing mechanism, embeds there is the total coverage, to the heat dissipation cooling of change, high efficiency, ensures the long-term steady operation of device under high temperature environment, is worth very much promoting.

Description

Ku-waveband four-side array two-dimensional digital array low-altitude early warning radar

Technical Field

The utility model relates to a low latitude early warning radar technical field specifically is a Ku wave band four sides array two-dimensional digital array low latitude early warning radar.

Background

The low-altitude early warning radar mainly completes the tasks of searching, capturing, tracking and the like of low, small and slow targets such as unmanned aerial vehicles around the radar, can measure target parameters, provides target information for other equipment, determines the running track, speed and moving direction of the target for the small low-altitude unmanned aerial vehicles and the omnibearing detection of the low, small and slow targets, and can provide information such as the absolute position, the speed and the time of the detected target for higher command departments and related units in real time.

In the prior art, a low-altitude security defense early warning radar with application number "201820066712.7" includes: the FPGA unit, transmitter signal conditioning circuit, power amplifier circuit, signal amplification circuit, receiver signal conditioning circuit, transmitting antenna and receiving antenna, the FPGA unit respectively with transmitter signal conditioning circuit, receiver signal conditioning circuit electricity is connected, transmitter signal conditioning circuit is connected with power amplifier circuit electricity, power amplifier circuit is connected with transmitting antenna electricity, receiver signal conditioning circuit is connected with signal amplification circuit electricity, signal amplification circuit is connected with receiving antenna electricity, this low latitude safety defense early warning radar receives and dispatches the direct code phase difference of signal through the FPGA unit and solves the time difference, thereby accomplish unmanned aerial vehicle target monitoring, it has higher distance resolution to compare unmanned aerial vehicle monitoring facilities based on pulse radar, can be used to in the chemical plant control.

However, the method still has the obvious defects in the using process: 1. the horn-type directional antenna used in the device is a microwave antenna with a circular or rectangular section, and a waveguide tube terminal is gradually flared, so that the coverage range is limited, and tasks such as quick search, capture and tracking of part of low-altitude targets cannot be met; 2. the device is lack of a necessary heat dissipation structure, so that accumulated heat is easily generated after the early warning radar works for a long time, electronic equipment is burnt, and the service life of the device is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a Ku wave band four sides array two-dimensional digital array low latitude early warning radar to solve the problem that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a Ku waveband four-side array two-dimensional digital array low-altitude early warning radar comprises a four-side array radar shell, wherein four phased array antenna array surfaces are arranged on the outer side surface of the four-side array radar shell, the phased array antenna array surfaces are all installed by inclining elevation angles by 15 degrees, the four phased array antenna array surfaces cover the range of 360 degrees, and the phased array antenna array surfaces are respectively connected with a chassis through a high-temperature wire cable and a radio-frequency cable to form a control and data transmission link;

an upper frame, a lower cover plate and a side cover plate are fixedly arranged in the four-area array radar shell, a case is arranged among the upper frame, the lower cover plate and the side cover plate, and a blind plugboard is fixedly arranged at the bottom of the case;

the four-surface array radar casing is characterized in that a fan is arranged at the bottom of the periphery of the four-surface array radar casing, an air inlet is formed in the bottom of the fan, four air nozzle assemblies are arranged on the fan in a communicated manner, each air nozzle assembly is provided with a large air outlet, a small right air outlet and a small left air outlet in a communicated manner, the number of the large air outlets is four, air outlet ends of the large air outlets face the corresponding side of the case respectively, the number of the small right air outlets and the number of the small left air outlets are four respectively, the air outlet ends of the small right air outlets and the small left air outlets which are positioned on the same side face the same side and face the corresponding position of the phased array antenna array surface and the four-surface array radar casing, an upper end cover plate is arranged above the four-surface array radar;

a lower connection plate is fixedly arranged at the center of the bottom of the four-side array radar shell and connected with a case through optical fibers, and a cover body is arranged on the lower connection plate;

the four-area array radar is characterized in that a complete machine power supply is arranged in the four-area array radar shell, the complete machine power supply is provided with commercial power input and is connected with the lower connection plate, and the complete machine power supply is respectively connected with the phased array antenna array surface, the case and the fan through direct current multi-path output.

Preferably, the phased array antenna array surface is detachably arranged on the outer side surface of the four-side array radar shell.

Preferably, the contact surface between the four-area array radar shell and the phased array antenna array surface is hollowed out.

Preferably, the housing of the case is hollow.

Preferably, eight fans are arranged, and two fans located on the same side are communicated with one air nozzle assembly in a shared mode.

Preferably, the four-side array radar shell is fixedly provided with four handles on the outer side surface.

Preferably, an upper sealing strip is arranged between the upper frame and the case, and a lower sealing strip is arranged between the lower cover plate and the case.

Preferably, the inside of the four-side array radar shell is provided with an antenna metal shell radiator, and the antenna metal shell radiator and the corresponding phased array antenna array surface are attached and installed through a metal layer.

Preferably, a complete machine power supply radiator is arranged in an inner cavity of the four-side array radar shell and attached to a complete machine power supply.

Preferably, an outer surface of a case radiator is arranged in an inner cavity of the four-side array radar shell, and the outer surface of the case radiator is provided with four radiators which are respectively arranged on different sides of the case for receiving air from the large air outlet.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a 360 all-round covers can be realized to four phased array antenna array faces, and no blind area need not mechanical slewing mechanism simultaneously, compare the machine that has linear array antenna, fixed beam point and pass through mechanical scanning of current universal adoption and sweep two coordinate radar, obviously the utility model discloses more stable, avoided the slewing structure easy problem of makeing mistakes and being obstructed under the complex environment, the coverage is also wider;

2. the low-altitude early warning radar has strong adaptability to meteorological environment and low-altitude target characteristic complication, so that tasks such as searching, capturing, tracking and measuring target parameters of low, small and slow targets can be quickly and stably carried out, and the low-altitude early warning radar has excellent target monitoring capability;

3. the Ku waveband four-side array two-dimensional digital array low-altitude early warning radar of the utility model can work in all weather, is insensitive to complex meteorological environment, and has a response speed greatly superior to that of the existing radar to low altitude, slow speed and small target;

4. the utility model discloses built-in have multiple relevant heat radiation structure such as fan, tuyere subassembly, antenna metal casing radiator, complete machine power radiator and machine case surface radiator, can realize aeration cooling, effectively protect inside electronic equipment can not damage because of lasting high fever, and have more pertinence such as setting up of wind direction in the ventilation system, and the radiating efficiency is higher.

The utility model provides a Ku wave band four sides array two-dimensional digital array low latitude early warning radar can realize 360 all-round covers, need not mechanical slewing mechanism, consequently stronger to the adaptability of complex environment, the reaction rapidly, has excellent target monitoring ability, embeds there is the full coverage, to the heat dissipation cooling of change, high efficiency, ensures the long-term steady operation of device under high temperature environment, is worth very much promoting.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic bottom view of the overall structure of the present invention;

FIG. 3 is a schematic front view of the overall structure of the present invention;

fig. 4 is a schematic front view of the tuyere assembly of the present invention;

fig. 5 is a rear view of the tuyere assembly of the present invention;

fig. 6 is a front view of the antenna metal case heat sink structure of the present invention;

fig. 7 is a side view of the antenna metal casing heat sink structure of the present invention.

In the figure: the antenna comprises a four-side array radar shell 1, a phased array antenna array 2, a chassis 3, an upper frame 4, a lower cover plate 5, a side cover plate 6, a blind inserting plate 7, a fan 8, a tuyere assembly 9, a large air outlet 91, a small air outlet 921 on the right, a small air outlet 922 on the left, an upper end cover plate 10, a lower connecting plate 11, a cover body 12, a complete machine power supply 13, a handle 14, an upper sealing strip 15, a lower sealing strip 16, an antenna metal shell radiator 17, a complete machine power supply radiator 18 and an external surface radiator 19 of the chassis.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution:

a Ku wave band four-side array two-dimensional digital array low-altitude early warning radar comprises a four-side array radar shell 1, wherein the outer side surface of the four-side array radar shell 1 is provided with four phased array antenna array surfaces 2, the phased array antenna array surfaces 2 are two-dimensional phased array antennas capable of scanning wave beams and controlling the direction of the wave beams, the four phased array antenna array surfaces 2 adopt unified time sequence and simultaneous transmission and reception, meanwhile, the four array surfaces adopt different frequency working design, the phased array antenna array surfaces 2 are all installed by inclining elevation angle by 15 degrees, each phased array antenna array surface 2 is divided into four quadrants according to the center, each quadrant has 96 array elements, each quadrant forms a channel, the four channels respectively form four receiving outputs and one transmitting output through a power division network at the rear end, the four phased array antenna array surfaces 2 cover the range of 360 degrees and have no blind area, the phased array antenna array surface 2 is respectively connected with a case 3 through a high-temperature lead, forming a control and data transmission link.

An upper frame 4, a lower cover plate 5 and a side cover plate 6 are fixedly arranged in a four-area array radar shell 1, a case 3 is arranged between the upper frame 4, the lower cover plate 5 and the side cover plate 6, the upper frame 4, the lower cover plate 5 and the side cover plate 6 are mainly used for isolating and sealing the case 3 from the outside, the case 3 internally comprises a frequency source plug-in unit, a local array plug-in unit, two digital board plug-in units and a time sequence wave control plug-in unit, the insides are mutually connected through cables or optical fibers, a blind plug-in board 7 is fixedly arranged at the bottom of the case 3, the blind plug-in board 7 is a blind matching board used by the plug-in units inside the case 3, and the function of blind.

The bottom of the periphery of the four-side array radar shell 1 is provided with a fan 8, the fan 8 is a direct-current high-speed-adjustable fan, and is convenient to adjust flexibly according to actual application conditions, the bottom of the fan 8 is provided with an air inlet, the fan 8 is communicated with an air nozzle assembly 9, the air nozzle assembly 9 is provided with four air nozzle assemblies, each air nozzle assembly 9 is communicated with a large air outlet 91, a small right air outlet 921 and a small left air outlet 922, the large air outlet 91, the small right air outlet 921 and the small left air outlet 922 are in special-shaped design, the air duct contact area can be effectively improved, the heat dissipation efficiency is improved, the large air outlet 91 is provided with four air outlet ends which respectively face the corresponding sides of the case 3, so that the case 3 can be blown and dissipated completely in four directions, the small right air outlet 921 and the small left air outlet 922 are respectively provided with four air outlets, the air outlet ends of the small right air outlet 921 and the small left air outlet 922, from this combination realization is to the heat dissipation of blowing of four mutual departments of pasting, it is thus clear that tuyere subassembly 9 can be to quick-witted case 3, phased array antenna array face 2 all carries out the heat dissipation of full coverage with four mutual departments of array radar casing 1, it is corresponding more, the radiating effect is better, the effective utilization ratio of the heat energy is higher, four sides array radar casing 1's top is provided with upper end cover plate 10, leave the gap between upper end cover plate 10 and four sides array radar casing 1's top, be used as the air outlet, and then guarantee that four sides array radar casing 1's inside temperature can effectively circulate to four sides array radar casing 1's outside, accomplish the heat exchange, in time, the heat dissipation cooling.

Four sides battle array radar casing 1's bottom center department is fixed to be provided with down fishplate bar 11, and lower fishplate bar 11 is connected with quick-witted case 3 through optic fibre, and lower fishplate bar 11 is used for being responsible for the telecommunication connection switching of outdoor equipment and indoor set, is provided with the cover body 12 down on the fishplate bar 11, and the cover body 12 has mainly played fixed sealed function.

The four-area array radar shell 1 is internally provided with a complete machine power supply 13, an alternating current is input into various direct current outputs, each direct current output adopts an isolation design, the complete machine power supply 13 has a commercial power input and is connected with the lower connecting plate 11, the direct current output of the complete machine power supply 13 adopts various connector designs, and the complete machine power supply 13 is respectively connected with the phased array antenna array surface 2, the case 3 and the fan 8 through direct current multi-path output.

As a preferred, phased array antenna array 2 detachably installs in the lateral surface of four sides array radar casing 1, and every phased array antenna array 2 all adopts the mode of can dismantling alone, and wire cable junction all adopts the connector interconnection with radio frequency cable junction, and convenient independent array can dismantle control.

As an optimization, the contact surface of the four-side array radar shell 1 and the phased array antenna array surface 2 is arranged in a hollow manner, so that the phased array antenna array surface 2 can be conveniently and timely ventilated and cooled.

As an optimization, the shell of the case 3 is hollowed out, so that the case 3 can be conveniently and timely ventilated and cooled.

Preferably, the eight fans 8 are arranged, the two fans 8 located on the same side are communicated with one air nozzle assembly 9 in a shared mode, the air outlet quantity of the air nozzle assembly 9 can be increased due to the arrangement, the heat dissipation effect is improved, the two fans 8 are arranged on the same side, the device is more stable, after the device is used for a long time, when one fan 8 is damaged, the other fan 8 can still work normally, the fault tolerance is high, and the service life of the device can be effectively prolonged.

Preferably, handles 14 are fixedly arranged on the outer side surface of the four-side array radar shell 1, the number of the handles 14 is four, and the handles 14 are used during installation and are convenient to take and operate.

Preferably, an upper sealing strip 15 is arranged between the upper frame 4 and the case 3, and a lower sealing strip 16 is arranged between the lower cover plate 5 and the case 3, so as to perform a function of sealing the case 3 therein, and prevent dust or moisture from entering and damaging the case 3.

Preferably, an antenna metal casing radiator 17 is arranged on the inner side of the four-side array radar casing 1, and the antenna metal casing radiator 17 and the corresponding phased array antenna array surface 2 are attached through a metal layer.

Preferably, a complete machine power supply radiator 18 is arranged in the inner cavity of the four-side array radar shell 1, and the complete machine power supply radiator 18 is attached to the complete machine power supply 13.

Preferably, the case outer surface radiators 19 are arranged in the inner cavity of the four-side array radar housing 1, and the case outer surface radiators 19 are totally four and are respectively arranged on different sides of the case 3 for receiving the air blown by the air outlet 91.

The utility model discloses a Ku wave band four sides array two-dimensional digital array low latitude early warning radar adopts digital array technology system, and this technique easily realizes multiple beam form, carries out nimble space-time resource allocation, improves radar resource utilization efficiency, can adapt to multiple mode demand better. The digital array radar system has the advantages of simple structure, expandability, strong reconfigurable capability, high spatial freedom degree and strong active interference resistance, and the system architecture is a full-digital active array + optical fiber transmission + high-performance integrated operation platform.

The utility model discloses a software system's operation platform adopts the integrated design, calculates "FPGA + DSP + CPU" general computing platform that the processing node adopted high density, and FPGA is responsible for accomplishing multichannel digital beam and forms, and DSP is responsible for accomplishing a large amount of repeated regularity operations, and CPU is responsible for multitask processing, management and communication, and the operational capability of each node can be improved greatly to such combination, the reduction system volume. The computing nodes can be flexibly and effectively expanded according to needs, and the system operation cannot be influenced by the fault of a single computing node.

The working principle is as follows: the utility model discloses a four phased array antenna wavefront 2, phased array antenna wavefront 2 all adopts the installation of elevation slope 15, every phased array antenna wavefront 2's electric sweep scope is position 45, every single move 45, realize four phased array antenna wavefront 2 from this and cover 360 scopes, can effectively realize the position omnidirectional and cover the electric sweep, and four wavefronts adopt unified chronogenesis, with sending out with receiving, four wavefronts adopt the different frequency work design simultaneously, compare with two coordinate radars of current mechanical scanning, the electric scanning has to the low latitude, slow speed, the quick search of small-size wait target, catch, trail, no mechanical slewing mechanism, it is better to complicated meteorological environment adaptability, the stability reliability of use is better.

In the using process, the fans 8 can be opened to be in a working state, two fans 8 positioned on the same side are communicated with one air nozzle assembly 9 in common, air flow generated by the fans 8 is finally blown out by a large air outlet 91, a small right air outlet 921 and a small left air outlet 922 on the air nozzle assembly 9, the large air outlet 91 is four in number, air outlet ends face the corresponding sides of the case 3 respectively, so that air blowing and heat dissipation in four directions of the case 3 are realized, the small right air outlet 921 and the small left air outlet 922 are four in number respectively, the air outlet ends of the small right air outlet 921 and the small left air outlet 922 positioned on the same side face the attachment positions of the phased array antenna array surface 2 and the four-side array radar casing 1 on the same side, so that air blowing and heat dissipation in the four attachment positions are realized in combination, and therefore, the air nozzle assembly 9 can perform full-coverage heat dissipation on the case 3, the phased array antenna surface 2 and the four-, the fan 8 is provided with an air inlet at the bottom, an upper end cover plate 10 is arranged above the four-side array radar shell 1, a gap is reserved between the upper end cover plate 10 and the top end of the four-side array radar shell 1 and is used as an air outlet, thereby ensuring that the internal temperature of the four-side array radar shell 1 can effectively circulate to the outside of the four-side array radar shell 1, therefore, heat exchange is completed, in addition, the antenna metal shell radiator 17 radiates the heat of the corresponding phased array antenna array surface 2 through the metal layer, the complete machine power supply radiator 18 radiates the heat of the complete machine power supply 13, and the external case surface radiator 19 radiates the heat of different sides of the case 3 receiving the air blown by the large air outlet 91, so that full coverage, pertinence and high-efficiency heat radiation and cooling are realized, and the long-term stable operation of the device in a high-temperature environment is ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a Ku wave band four sides array two-dimensional digital array low latitude early warning radar, includes four sides array radar casing (1), its characterized in that: the four-area array radar antenna comprises a four-area array radar shell (1), wherein four phased array antenna array surfaces (2) are arranged on the outer side surface of the four-area array radar shell (1), the phased array antenna array surfaces (2) are all installed by inclining an elevation angle by 15 degrees, the four phased array antenna array surfaces (2) cover a range of 360 degrees, and the phased array antenna array surfaces (2) are respectively connected with a case (3) through a high-temperature wire cable and a radio-frequency cable to form a control and data transmission link;

an upper frame (4), a lower cover plate (5) and a side cover plate (6) are fixedly arranged in the four-area array radar shell (1), a case (3) is arranged among the upper frame (4), the lower cover plate (5) and the side cover plate (6), and a blind inserting plate (7) is fixedly arranged at the bottom of the case (3);

the periphery bottom of four-area array radar shell (1) is provided with fan (8), the bottom of fan (8) is provided with the air intake, the intercommunication is provided with tuyere subassembly (9) on fan (8), tuyere subassembly (9) are provided with four altogether, every all the intercommunication is provided with big air outlet (91), little air outlet (921) in the right side and little air outlet (922) in the left side on tuyere subassembly (9), big air outlet (91) is total four and the air-out end is respectively towards the corresponding side of quick-witted case (3), little air outlet (921) in the right side and little air outlet (922) in the left side are provided with four respectively, the air-out end of little air outlet (921) in the right side and little air outlet (922) in the same side all towards phased array antenna array face (2) and the laminating department of four-area array radar shell (1) of homonymy, the top of four-area array radar shell (1) is provided with upper end cover board (10, a gap is reserved between the upper end cover plate (10) and the top end of the four-side array radar shell (1) and is used as an air outlet;

a lower connection plate (11) is fixedly arranged at the center of the bottom of the four-area array radar shell (1), the lower connection plate (11) is connected with the case (3) through optical fibers, and a cover body (12) is arranged on the lower connection plate (11);

the four-area array radar antenna is characterized in that a complete machine power supply (13) is arranged in the four-area array radar shell (1), the complete machine power supply (13) is provided with commercial power input and is connected with the lower connection plate (11), and the complete machine power supply (13) is respectively connected with the phased array antenna array surface (2), the case (3) and the fan (8) through direct current multi-path output.

2. The Ku waveband four-sided array two-dimensional digital array low-altitude early warning radar as claimed in claim 1, wherein: the phased array antenna array surface (2) is detachably arranged on the outer side surface of the four-area array radar shell (1).

3. The Ku waveband four-sided array two-dimensional digital array low-altitude early warning radar as claimed in claim 1, wherein: the contact surface of the four-area array radar shell (1) and the phased array antenna array surface (2) is arranged in a hollow mode.

4. The Ku waveband four-sided array two-dimensional digital array low-altitude early warning radar as claimed in claim 1, wherein: the shell of the case (3) is arranged in a hollow manner.

5. The Ku waveband four-sided array two-dimensional digital array low-altitude early warning radar as claimed in claim 1, wherein: the eight fans (8) are arranged, and the two fans (8) located on the same side are communicated with one air nozzle assembly (9) in a shared mode.

6. The Ku waveband four-sided array two-dimensional digital array low-altitude early warning radar as claimed in claim 1, wherein: the outer side face of the four-area array radar shell (1) is fixedly provided with four handles (14), and the number of the handles (14) is four.

7. The Ku waveband four-sided array two-dimensional digital array low-altitude early warning radar as claimed in claim 1, wherein: an upper sealing strip (15) is arranged between the upper frame (4) and the case (3), and a lower sealing strip (16) is arranged between the lower cover plate (5) and the case (3).

8. The Ku waveband four-sided array two-dimensional digital array low-altitude early warning radar as claimed in claim 1, wherein: the antenna is characterized in that an antenna metal shell radiator (17) is arranged on the inner side of the four-area array radar shell (1), and the antenna metal shell radiator (17) and the corresponding phased array antenna array surface (2) are attached through a metal layer.

9. The Ku waveband four-sided array two-dimensional digital array low-altitude early warning radar as claimed in claim 1, wherein: the whole machine power supply radiator (18) is arranged in the inner cavity of the four-area array radar shell (1), and the whole machine power supply radiator (18) is attached to the whole machine power supply (13).

10. The Ku waveband four-sided array two-dimensional digital array low-altitude early warning radar as claimed in claim 1, wherein: an outer surface radiator (19) of a case is arranged in an inner cavity of the four-area array radar shell (1), and the outer surface radiator (19) of the case is provided with four different side faces which are respectively arranged on the case (3) and used for receiving air blowing from the large air outlet (91).

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