CN108089158A - A kind of omnidirectional's radar corner reflector array - Google Patents
A kind of omnidirectional's radar corner reflector array Download PDFInfo
- Publication number
- CN108089158A CN108089158A CN201810013757.2A CN201810013757A CN108089158A CN 108089158 A CN108089158 A CN 108089158A CN 201810013757 A CN201810013757 A CN 201810013757A CN 108089158 A CN108089158 A CN 108089158A
- Authority
- CN
- China
- Prior art keywords
- array
- corner reflector
- omnidirectional
- radar
- circular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
- G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a kind of omnidirectional's radar corner reflector array, which carries out annular as basic array element using circular corner reflector and structures the formation, including upper strata corner reflector circular array and lower floor's corner reflector circular array.Upper strata corner reflector circular array and lower floor's corner reflector circular array on the vertical plane under coaxial setting, the two array element number is identical and is that equiangularly spaced annular is structured the formation.Equiangularly spaced interlaced arrangement successively between the adjacent array element of upper strata corner reflector circular array and lower floor's corner reflector circular array.Omnidirectional's radar corner reflector array of mode proposed by the present invention of being structured the formation based on bidimensional annular, the radial space occupancy of the conventional one-dimensional annular array of omnidirectional's radar corner reflector can effectively be reduced, radar cross section (Radar Cross Section, RCS) omnidirectional's covering performance is excellent, meets 360 ° of sourceless seism confrontation functional requirements of omnidirectional.
Description
Technical field
The invention belongs to Radar ECM technical fields, and in particular to a kind of omnidirectional's radar corner reflector array is applicable in
The sourceless seism counterdevice in Radar ECM system.
Background technology
Radar corner reflector is typically the three-dimensional rigid structure being made of two pieces or three pieces of orthogonal metal flats, it
It is a kind of very effective device that Radar ECM technical field carries out sourceless seism confrontation for enemy radar detection.By
In special geometry, the radar electromagnetic wave being irradiated on corner reflector can generate multipath reflection, finally make inside it
Radar electromagnetic wave is reflected back along incident direction.Therefore, corner reflector has strong radar cross section (Radar Cross
Section, RCS), it can be considered echo intensifier, radar can be generated and significantly disturb, cheat and lure inclined effect.It is based on
This, radar corner reflector can be high to us to reduce enemy radar by forming decoy to achieve the purpose that camouflage
The detection probability of value goal, disturbs the attack precision of enemy attack weapon, and then plays protection weaponry and the work in position
With.
Compared to other sourceless seism counterdevice, radar corner reflector is with working band is wide, interference effect is lasting, dry
Disturb significant effect, it is of low cost, easy to process the features such as.But when physical appearance size determines, single radar corner reflector
The RCS values of generation are substantially definite and about 30 ° of RCS directions map combining spatial domain, it is difficult to it is passive to meet comprehensive 360 ° of coverings
Interference confrontation functional requirement.Furthermore with the variation of battlefield operational environment under the new situation, the target that we needs to pretend and simulate
Gradually increase, the use scope of single radar corner reflector is limited to a certain extent.As it can be seen that it adapts to practical application request and adopts
It is ideal solution with omnidirectional's radar corner reflector array.But due to RCS values and corner reflector structure size phase
It closes, is limited to the structure size of single corner reflector array element, during in order to ensure the array element group battle array of omnidirectional's radar corner reflector array
Do not interfere in locations of structures between each other, the radial space occupancy of the conventional one-dimensional annular array of omnidirectional's radar corner reflector
Height, array appearance and size are larger.Therefore, under the premise of omnidirectional's RCS values of sourceless seism confrontation requirement are ensured, it is further reduced complete
Seeming to the radial space occupancy of radar corner reflector array is highly desirable.
The content of the invention
Technical problems to be solved
For the deficiency of background technology, in order to efficiently reduce the conventional one-dimensional annular array of omnidirectional's radar corner reflector
Radial space occupancy, the present invention propose a kind of omnidirectional's radar corner reflector array.
Technical solution
A kind of omnidirectional's radar corner reflector array, it is characterised in that：Omnidirectional's radar corner reflector array is with circular corner reflection
Device carries out bidimensional annular for basic array element and structures the formation, including upper strata corner reflector circular array and lower floor's corner reflector circular array；Upper strata
Corner reflector circular array and lower floor's corner reflector circular array on the vertical plane under coaxial setting, the two array element number is identical and is
Equiangularly spaced annular is structured the formation mode；Between the adjacent array element of upper strata corner reflector circular array and lower floor's corner reflector circular array etc.
Angle is interval-staggered.
The array element number of the upper strata corner reflector circular array is hexa-atomic, adjacent 60 ° of equiangularly spaced arrangements of array element.
The array element number of lower floor's corner reflector circular array is hexa-atomic, adjacent 60 ° of equiangularly spaced arrangements of array element.
30 ° of interleaved cloth successively between the adjacent array element of upper strata corner reflector circular array and lower floor's corner reflector circular array
It puts.
Advantageous effect
A kind of omnidirectional's radar corner reflector array proposed by the present invention, has the following technical effect that：
The mode 1. two dimension of two layers of circular array up and down proposed by the present invention is structured the formation, compared to the conventional one-dimensional annular side of structuring the formation
Formula, the array element number needed for individual layer reduce half, can efficiently reduce the integrally-built radial space occupancy of array；
2. equiangularly spaced interlaced arrangement between two layers of circular array adjacent cells up and down proposed by the present invention, can realize
RCS omnidirectionals covering performance meets 360 ° of sourceless seism confrontation functional requirements of omnidirectional.
Description of the drawings
Fig. 1 is the circular corner reflector array element structure schematic diagram used
Fig. 2 is the three dimensional structure diagram of the conventional one-dimensional annular array of omnidirectional's radar corner reflector
Fig. 3 is the top view of the conventional one-dimensional annular array of omnidirectional's radar corner reflector
Fig. 4 is the three dimensional structure diagram one of omnidirectional's radar corner reflector array of the present invention
Fig. 5 is the three dimensional structure diagram two of omnidirectional's radar corner reflector array of the present invention
Fig. 6 is the top view of omnidirectional's radar corner reflector array of the present invention
Fig. 7 is that the RCS of omnidirectional's radar corner reflector array of the present invention emulates directional diagram
In attached drawing and written explanation, all parts of the label instruction present invention, in all attached drawings and entire written explanation
In, identical label represents identical component.Specifically, more than figure label is construed to：1- circular corner reflector array elements,
2- upper stratas corner reflector circular array, 3- lower floors corner reflector circular array, 21- upper stratas the first corner reflector circular array array element,
22- upper stratas the second corner reflector circular array array element, 23- upper stratas the third angle reflector circular array array element, 24- upper stratas fourth angle
Reflector circular array array element, 25- upper stratas penta reflector circular array array element, 26- upper stratas hexagonal reflector annular are a burst of
Member, 31- lower floors the first corner reflector circular array array element, 32- lower floors the second corner reflector circular array array element, 33- lower floors the 3rd
Corner reflector circular array array element, 34- lower floors fourth angle reflector circular array array element, 35- lower floors penta reflector circular array
Array element, 36- lower floors hexagonal reflector circular array array element.
Specific embodiment
In conjunction with embodiment, attached drawing, the invention will be further described：
Omnidirectional's radar corner reflector array of the present invention carries out bidimensional annular as basic array element using circular corner reflector and structures the formation, and wraps
Include upper strata corner reflector circular array and lower floor's corner reflector circular array.The array element number of upper strata corner reflector circular array to be hexa-atomic,
Adjacent 60 ° of equiangularly spaced arrangements of array element.The array element number of lower floor's corner reflector circular array is hexa-atomic, adjacent 60 ° of isogonisms of array element
Spend arranged for interval.Upper strata corner reflector circular array and lower floor's corner reflector circular array on the vertical plane under coaxial setting, the two phase
Between adjacent array element successively 30 ° it is interval-staggered, avoid upper strata corner reflector circular array and lower floor's corner reflector circular array
Adjacent array element interferes influence in structure.
Omnidirectional's radar corner reflector array of the present invention use the two dimension of upper and lower two layers of circular array structure the formation mode (array element number for
2 × 6), from the aspect of specific whole battle array RCS coverings spatial domain, it is equivalent to the one-dimensional annular of 12 array elements and structures the formation mode, and designs
The RCS coverings spatial domain of each array element be more than 30 °, it is achieved thereby that the purposes of 360 ° of Zheng Zhen omnidirectionals covering.
The present embodiment is omnidirectional's radar corner reflector array that a kind of working frequency is X-band, and the key technical indexes is：
1. working frequency：8GHz~12GHz；
2. cover spatial domain：The 360 ° of coverings of orientation omnidirectional, out-of-roundness are less than 3dB；
3. radar cross section：RCS≥2000m2(33dBsm)。
With reference to Fig. 1, the basic array element form that the present invention uses is R, the center of circle by three radiuses for circular corner reflector 1
The fan-shaped composition that angle is 90 °.Compared to the triangular corner reflector generally used, when RCS values require identical and directional diagram width
At about 30 °, 1 appearance and size smaller of circular corner reflector.Rule of thumb formula (see《Principles of Radar》(third edition) fourth aigret such as flies at the works
Publishing house of Xian Electronics Science and Technology University) it can be calculated, it is contemplated that 8~12GHz operating frequency ranges and single corner reflector direction
The 30 ° of limitations of figure width, will meet RCS >=2000m2Index request, R=0.6 meters of the radius of 1 array element of circular corner reflector.Cause
This, to realize 360 ° of covering function demands of orientation omnidirectional, it is necessary to which 12 circular corner reflectors 1 carry out annular structures the formation.
With reference to Fig. 2, conventional one-dimensional annular is carried out for basic array element with the circular corner reflector 1 of design and structures the formation to obtain omnidirectional
Radar corner reflector array.Array element number is ten binary, and adjacent 30 ° of array element angularly structure the formation by annular.
With reference to Fig. 3, due to the linear array of single 1 appearance and size of circular corner reflector, in order to avoid between array element in structure
Interfere with each other influence, it is necessary to maximum radial dimension be 3.6 meters.
With reference to Fig. 4, Fig. 5, bidimensional annular is carried out for basic array element with the circular corner reflector 1 of design and structures the formation to obtain the present invention
Omnidirectional's radar corner reflector array, including upper strata corner reflector circular array 2 and lower floor's corner reflector circular array 3.Upper strata corner reflection
The array element number of device circular array 2 is hexa-atomic, and array element is respectively upper strata the first corner reflector circular array array element 21, upper strata second according to this
Corner reflector circular array array element 22, upper strata the third angle reflector circular array array element 23, upper strata fourth angle reflector circular array array element
24th, upper strata penta reflector circular array array element 25, upper strata hexagonal reflector circular array array element 26, and 60 ° of adjacent array element etc.
Angle arranged for interval.The array element number of lower floor's corner reflector circular array 3 is hexa-atomic, and array element is respectively the first corner reflection of lower floor according to this
Device circular array array element 31, lower floor's the second corner reflector circular array array element 32, lower floor's the third angle reflector circular array array element 33, lower floor
Fourth angle reflector circular array array element 34, lower floor's penta reflector circular array array element 35, lower floor's hexagonal reflector circular array
Array element 36, and 60 ° of equiangularly spaced arrangements of adjacent array element.
With reference to Fig. 6, upper strata corner reflector circular array 2 and lower floor's corner reflector circular array 3 on the vertical plane under coaxial setting,
Between the adjacent array element of the two successively 30 ° it is interval-staggered, avoid upper strata corner reflector circular array 2 and lower floor's corner reflector ring
The influence that the adjacent array element of shape battle array 3 interferes in structure, the maximum that final entire omnidirectional radar corner reflector array needs
Radial dimension is 1.9 meters.
With reference to Fig. 7, the RCS emulation directional diagrams of omnidirectional's radar corner reflector array of the present invention.It is covered by whole battle array RCS empty
Domain, RCS values simulation result as it can be seen that the present invention uses the two dimension of upper and lower two layers of circular array to structure the formation mode (array element number is 2 × 6),
It is equivalent to the conventional one-dimensional annular of 12 array elements and structures the formation mode；At working frequency low side 8GHz, meet RCS >=2000m2
(33dBsm) technical requirement, directional diagram out-of-roundness are about 3dB, it is achieved thereby that the purpose of 360 ° of coverings of omnidirectional.
Claims (4)
1. a kind of omnidirectional's radar corner reflector array, it is characterised in that：Omnidirectional's radar corner reflector array is with circular corner reflector
(1) carry out bidimensional annular for basic array element to structure the formation, including upper strata corner reflector circular array (2) and lower floor's corner reflector circular array
(3)；Upper strata corner reflector circular array (2) and lower floor's corner reflector circular array (3) on the vertical plane under coaxial setting, the two array element
Number is identical and is that equiangularly spaced annular is structured the formation mode；Upper strata corner reflector circular array (2) and lower floor's corner reflector annular
Equiangularly spaced interlaced arrangement between the adjacent array element of battle array (3).
A kind of 2. omnidirectional's radar corner reflector array according to claim 1, it is characterised in that the upper strata corner reflection
The array element number of device circular array (2) is hexa-atomic, adjacent 60 ° of equiangularly spaced arrangements of array element.
A kind of 3. omnidirectional's radar corner reflector array according to claim 1, it is characterised in that lower floor's corner reflection
The array element number of device circular array (3) is hexa-atomic, adjacent 60 ° of equiangularly spaced arrangements of array element.
A kind of 4. omnidirectional's radar corner reflector array according to claim 1, it is characterised in that upper strata corner reflector annular
Battle array (2) and lower floor's corner reflector circular array (3) adjacent array element between successively 30 ° it is interval-staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810013757.2A CN108089158A (en) | 2018-01-08 | 2018-01-08 | A kind of omnidirectional's radar corner reflector array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810013757.2A CN108089158A (en) | 2018-01-08 | 2018-01-08 | A kind of omnidirectional's radar corner reflector array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108089158A true CN108089158A (en) | 2018-05-29 |
Family
ID=62182134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810013757.2A Pending CN108089158A (en) | 2018-01-08 | 2018-01-08 | A kind of omnidirectional's radar corner reflector array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108089158A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109814114A (en) * | 2019-01-15 | 2019-05-28 | 北京百度网讯科技有限公司 | A kind of ultrasonic radar array, obstacle detection method and system |
| CN110244317A (en) * | 2019-06-03 | 2019-09-17 | 深圳市速腾聚创科技有限公司 | Laser radar system |
| CN110749864A (en) * | 2019-09-24 | 2020-02-04 | 四川航天燎原科技有限公司 | Array type corner reflector |
| CN110794375A (en) * | 2019-12-02 | 2020-02-14 | 湖北航天飞行器研究所 | Novel radar scattering cross section reinforcing device |
| CN115436938A (en) * | 2022-09-22 | 2022-12-06 | 山东大学 | Passive signal measuring device and measuring method based on millimeter wave radar |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5636201A (en) * | 1979-09-03 | 1981-04-09 | Zeniraito V:Kk | Combined corner reflector |
| US5175645A (en) * | 1991-12-04 | 1992-12-29 | Bennett Reginald B | Three panel reflector |
| CN1627563A (en) * | 2003-12-11 | 2005-06-15 | 索尼国际(欧洲)股份有限公司 | Three-dimensional omni-directional monopole antenna designs for ultra- wideband applications |
| CN101278441A (en) * | 2005-10-17 | 2008-10-01 | 宝矿研究公司 | Synthetic aperture perimeter array radar |
| US7573435B2 (en) * | 2006-10-24 | 2009-08-11 | Agilent Technologies, Inc. | Convex mount for element reduction in phased arrays with restricted scan |
| CN101799568A (en) * | 2010-03-23 | 2010-08-11 | 北京大学 | Two-dimensional bilateral-array type corner reflector |
| CN106342241B (en) * | 2011-12-14 | 2013-02-13 | 中国电子科技集团公司第二十七研究所 | A kind of cooperative target of the laser radar for space device intersection docking |
| CN102931481A (en) * | 2012-11-21 | 2013-02-13 | 西安电子科技大学 | Broadband bionic yagi antenna with low radar cross section |
| CN203909274U (en) * | 2014-04-30 | 2014-10-29 | 北京市水文地质工程地质大队 | Microwave enhancement reflection apparatus in three dimensional variable mode |
| CN104483672A (en) * | 2015-01-05 | 2015-04-01 | 山东省地质环境监测总站 | INSAR corner reflector |
| CN105403868A (en) * | 2015-11-21 | 2016-03-16 | 葛强林 | Cellular radar angle reflector |
| CN105403861A (en) * | 2015-11-26 | 2016-03-16 | 西安电子工程研究所 | Multi-layer spherical corner reflector device |
| CN105652251A (en) * | 2014-11-20 | 2016-06-08 | 中国航空工业集团公司雷华电子技术研究所 | Small-caliber distributed corner reflector combined structure |
| CN106252900A (en) * | 2016-07-27 | 2016-12-21 | 江西洪都航空工业集团有限责任公司 | A kind of Shared aperture Broadband interferometer antenna array |
-
2018
- 2018-01-08 CN CN201810013757.2A patent/CN108089158A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5636201A (en) * | 1979-09-03 | 1981-04-09 | Zeniraito V:Kk | Combined corner reflector |
| US5175645A (en) * | 1991-12-04 | 1992-12-29 | Bennett Reginald B | Three panel reflector |
| CN1627563A (en) * | 2003-12-11 | 2005-06-15 | 索尼国际(欧洲)股份有限公司 | Three-dimensional omni-directional monopole antenna designs for ultra- wideband applications |
| CN101278441A (en) * | 2005-10-17 | 2008-10-01 | 宝矿研究公司 | Synthetic aperture perimeter array radar |
| US7573435B2 (en) * | 2006-10-24 | 2009-08-11 | Agilent Technologies, Inc. | Convex mount for element reduction in phased arrays with restricted scan |
| CN101799568A (en) * | 2010-03-23 | 2010-08-11 | 北京大学 | Two-dimensional bilateral-array type corner reflector |
| CN106342241B (en) * | 2011-12-14 | 2013-02-13 | 中国电子科技集团公司第二十七研究所 | A kind of cooperative target of the laser radar for space device intersection docking |
| CN102931481A (en) * | 2012-11-21 | 2013-02-13 | 西安电子科技大学 | Broadband bionic yagi antenna with low radar cross section |
| CN203909274U (en) * | 2014-04-30 | 2014-10-29 | 北京市水文地质工程地质大队 | Microwave enhancement reflection apparatus in three dimensional variable mode |
| CN105652251A (en) * | 2014-11-20 | 2016-06-08 | 中国航空工业集团公司雷华电子技术研究所 | Small-caliber distributed corner reflector combined structure |
| CN104483672A (en) * | 2015-01-05 | 2015-04-01 | 山东省地质环境监测总站 | INSAR corner reflector |
| CN105403868A (en) * | 2015-11-21 | 2016-03-16 | 葛强林 | Cellular radar angle reflector |
| CN105403861A (en) * | 2015-11-26 | 2016-03-16 | 西安电子工程研究所 | Multi-layer spherical corner reflector device |
| CN106252900A (en) * | 2016-07-27 | 2016-12-21 | 江西洪都航空工业集团有限责任公司 | A kind of Shared aperture Broadband interferometer antenna array |
Non-Patent Citations (5)
| Title |
|---|
| F.Z.FANG: "《Manufacturing and measurement of freeform optics》", 《CIRP ANNALS》 * |
| 杨亚兵; 赵迎超; 李绪平; 田江: "《一种宽带低副瓣微带阵列天线的设计》", 《火控雷达技术》 * |
| 汤广富；李华; 甘荣兵; 袁茹芳: "《海战场环境下角反射器干扰分析》", 《电子信息对抗技术》 * |
| 祝寄徐，裴志斌，屈绍波: "《一种旋转型的角反射器的设计》", 《现代电子技术》 * |
| 隋起胜、袁健全: "《反舰导弹战场电磁环境仿真及试验鉴定技术》", 31 May 2015, 国防工业出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109814114A (en) * | 2019-01-15 | 2019-05-28 | 北京百度网讯科技有限公司 | A kind of ultrasonic radar array, obstacle detection method and system |
| CN110244317A (en) * | 2019-06-03 | 2019-09-17 | 深圳市速腾聚创科技有限公司 | Laser radar system |
| CN110749864A (en) * | 2019-09-24 | 2020-02-04 | 四川航天燎原科技有限公司 | Array type corner reflector |
| CN110794375A (en) * | 2019-12-02 | 2020-02-14 | 湖北航天飞行器研究所 | Novel radar scattering cross section reinforcing device |
| CN110794375B (en) * | 2019-12-02 | 2024-05-17 | 湖北航天飞行器研究所 | Radar scattering cross section reinforcing means |
| CN115436938A (en) * | 2022-09-22 | 2022-12-06 | 山东大学 | Passive signal measuring device and measuring method based on millimeter wave radar |
| CN115436938B (en) * | 2022-09-22 | 2024-05-07 | 山东大学 | Passive signal measurement device and method based on millimeter wave radar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108089158A (en) | A kind of omnidirectional's radar corner reflector array | |
| CN105655723B (en) | A kind of RCS reduction methods for phased array antenna | |
| CN106291477B (en) | Two-dimentional frequency mutually sweeps small target detection system | |
| US9362627B2 (en) | Artificial microstructure and artificial electromagnetic material using the same | |
| CN102117971B (en) | Low-scattering plane-reflective array antenna | |
| CN110854544B (en) | Low-RCS phased-array antenna and RCS reduction method | |
| CN107271970B (en) | A kind of radar co-interfere method based on distributed platform | |
| CN104182636A (en) | Fast implementation method for comprehensive minor lobes of array antenna radiation field and scattered field | |
| CN108875280B (en) | A kind of carrier-borne phased array guidance radar residence time dynamic dispatching method | |
| CN103490169B (en) | Individual layer broadband random surface | |
| CN107300691B (en) | A kind of passive co-interfere method of distribution for Antiship Missile Terminal Guidance Radar | |
| CN101931124A (en) | Embattling method of logarithmic spiral array antennas | |
| US3324468A (en) | Method and apparatus for determining the accuracy of projectiles fired at a target | |
| CN105785362B (en) | A kind of low graing lobe configuration method of three-dimensional imaging radar two dimension thinned array | |
| CN104063426B (en) | Radiation-and-scattering-oriented quick determination method for active phased-array antenna structure tolerance | |
| CN115063544A (en) | Radar detection power range calculation method for accompanying support interference | |
| CN106299720A (en) | Meta Materials, eyelid covering and aircraft | |
| CN108987934A (en) | A kind of ULTRA-WIDEBAND RADAR scattering section decrement Meta Materials and ULTRA-WIDEBAND RADAR | |
| CN109325306B (en) | Local plane-based arbitrary curved surface conformal array modeling method | |
| Dranidis | Airborne Stealth in a Nutshell-part I | |
| CN106532262A (en) | Multi-system antenna nested ring array | |
| CN203721888U (en) | Satellite navigation antenna array | |
| CN105652251B (en) | A kind of small-bore distributed corner reflector composite structure | |
| Zhang et al. | Air-floating corner reflectors dilution jamming placement position | |
| CN106403731A (en) | Novel invisible torpedo |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180529 |
|
| WD01 | Invention patent application deemed withdrawn after publication |