CN108646222A - A kind of visible angular domain corner reflector of radar cross section - Google Patents
A kind of visible angular domain corner reflector of radar cross section Download PDFInfo
- Publication number
- CN108646222A CN108646222A CN201810372844.7A CN201810372844A CN108646222A CN 108646222 A CN108646222 A CN 108646222A CN 201810372844 A CN201810372844 A CN 201810372844A CN 108646222 A CN108646222 A CN 108646222A
- Authority
- CN
- China
- Prior art keywords
- cant board
- angular domain
- rcs
- bottom plate
- visible angular
- 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.)
- Granted
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Aerials With Secondary Devices (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The present invention relates to a kind of visible angular domain corner reflectors of radar cross section, including：First cant board, the second cant board, bottom plate, the visible angular domain adjusters of the first radar cross section RCS and the visible angular domain adjusters of the 2nd RCS；The right-angle side of the right-angle side of first cant board, the right-angle side of second cant board and the bottom plate is vertical two-by-two and conllinear two-by-two, wherein the equal length of conllinear right-angle side two-by-two；The visible angular domain adjuster of first RCS is connected with first cant board and the bottom plate；The visible angular domain adjuster of 2nd RCS is connected with second cant board and the bottom plate.This programme is capable of providing a kind of visible angular domain corner reflector of the radar cross section that application flexibility is high.
Description
Technical field
The present invention relates to Radar Technology field more particularly to a kind of visible angular domain corner reflectors of radar cross section.
Background technology
Corner reflector is a kind of reflector for no reason at all, has extremely strong echo reflection characteristic.Since it is in wider angle model
There is very strong backward radar cross section (Radar Cross Section, RCS) in enclosing and be used as RCS boosters, calibration
Body or target body are widely used in the fields such as maritime search and rescue, the test of indoor and outdoor target property, target.
Currently, found during drone design, being modeled target, often to there are many places in RCS spatial distributions relatively narrow
It can be seen that angular domain, to realistically simulated target, such characteristic is very important.And traditional corner reflector scattering properties changes ratio
Relatively slowly, relatively narrow visible angular domain RCS cannot be simulated in application process, so that the flexibility of corner reflector application is poor.
Therefore, for the above deficiency, it is desirable to provide a kind of visible angular domain angle of the radar cross section that application flexibility is high is anti-
Emitter.
Invention content
The technical problem to be solved in the present invention is that traditional corner reflector scattering properties variation is slower, cannot answer
With relatively narrow visible angular domain RCS is simulated in the process, so that the flexibility of corner reflector application is poor, in the prior art
Defect provides a kind of radar cross section that application flexibility is high visible angular domain corner reflector.
In a first aspect, an embodiment of the present invention provides a kind of visible angular domain corner reflectors of radar cross section, including：First
Cant board, the second cant board, bottom plate, the visible angular domain adjusters of the first radar cross section RCS and the visible angular domains of the 2nd RCS are adjusted
Device；
The right-angle side of the right-angle side of first cant board, the right-angle side of second cant board and the bottom plate hangs down two-by-two
It is straight and conllinear two-by-two, wherein the equal length of conllinear right-angle side two-by-two；
The visible angular domain adjuster of first RCS is connected with first cant board and the bottom plate；
The visible angular domain adjuster of 2nd RCS is connected with second cant board and the bottom plate.
Preferably, the visible angular domain adjusters of the first RCS length and institute conllinear with the right-angle side conllinear two-by-two
The ratio for stating the length of side of right-angle side conllinear two-by-two is the predetermined dielectric-slab dimension ratio factor, wherein the first RCS
It can be seen that angular domain adjuster and the visible angular domain adjusters of the 2nd RCS, the conllinear length phase with the right-angle side conllinear two-by-two
Deng.
Preferably, the dielectric-slab dimension ratio factor and the visible angular domain width of RCS, meet following formula：
Y=ax3+bx2+cx+d
Wherein, y characterizes the visible angular domain width of the RCS, and x characterizes the dielectric-slab dimension ratio factor, and a characterizations are true in advance
Fixed the first regulatory factor, b characterize predetermined second regulatory factor, c characterizes predetermined third regulatory factor, d tables
Levy predetermined 4th regulatory factor.
Preferably, the shape of first cant board, second cant board and the bottom plate includes：Square or isosceles
Right angled triangle；
When the shape of first cant board, second cant board and the bottom plate is isosceles right triangle,
The value of first regulatory factor is -48, and the value of second regulatory factor is 61, the value of the third regulatory factor
It is -61, the value of the 4th regulatory factor is 48；
When the shape of first cant board, second cant board and the bottom plate is square, described first
The value of regulatory factor is 4, and the value of second regulatory factor is -3, and the value of the third regulatory factor is -26, described
The value of 4th regulatory factor is 25.
Preferably, when the shape of first cant board, second cant board and the bottom plate is isosceles right angle three
When angular, the shape of the visible angular domain adjusters of the first RCS and the visible angular domain adjusters of the 2nd RCS is triangular pyramid；
When the shape of first cant board, second cant board and the bottom plate is square, described first
The shape of the visible angular domain adjusters of RCS and the visible angular domain adjusters of the 2nd RCS is triangular prism shape.
Preferably, the value range of the dielectric-slab dimension ratio factor is (0,1).
Preferably, the visible angular domain of first cant board, second cant board, the bottom plate, the first RCS is adjusted
The material of device and the visible angular domain adjusters of the 2nd RCS is metal material.
Preferably, the thickness range of first cant board, second cant board and the bottom plate be [3mm,
7mm]。
Preferably, the length of side of conllinear right-angle side two-by-two and first cant board, second cant board and institute
The RCS for stating the solid of bottom plate formation meets following formula：
Wherein, the length of side of conllinear right-angle side, ε characterize predetermined plate shape coefficient two-by-two described in l characterizations, and S characterizes institute
The RCS for the solid that the first cant board, second cant board and the bottom plate are formed is stated, λ characterizes wavelength.
Preferably, when the shape of first cant board, second cant board and the bottom plate is isosceles right angle three
When angular, the template coefficient value is 3/4；
When the shape of first cant board, second cant board and the bottom plate is square, the template
Coefficient value is 1/12.
In embodiments of the present invention, the right-angle side of the right-angle side of the first cant board, the right-angle side of the second cant board and bottom plate
Conllinear two-by-two, i.e. the first cant board, the second cant board and bottom plate are arranged in a mutually vertical manner, and can reduce RCS magnitudes to the greatest extent
Decaying.And the visible angular domain adjusters of the first RCS are connected with the first cant board and bottom plate, and by the visible angular domains of the 2nd RCS
Adjuster is connected with the second cant board and bottom plate, can make electromagnetic wave on the visible angular domain corner reflector of radar cross section
Ejection area becomes smaller, so that the width of the visible angular domains of RCS narrows, to realize the visible angular domain angle of enhancing radar cross section
The purpose of reflector applications flexibility.
Description of the drawings
Fig. 1 is a kind of structural representation for the visible angular domain corner reflector of radar cross section that one embodiment of the invention provides
Figure；
Fig. 2 is a kind of spaces RCS point for the visible angular domain corner reflector of radar cross section that one embodiment of the invention provides
Butut；
Fig. 3 is the spaces RCS for the visible angular domain corner reflector of another radar cross section that one embodiment of the invention provides
Distribution map；
Fig. 4 is the spaces RCS for the visible angular domain corner reflector of another radar cross section that one embodiment of the invention provides
Distribution map；
Fig. 5 is a kind of spaces RCS point for the visible angular domain corner reflector of radar cross section that one embodiment of the invention provides
Butut；
Fig. 6 is the structural representation for the visible angular domain corner reflector of another radar cross section that one embodiment of the invention provides
Figure；
Fig. 7 is the structural representation for the visible angular domain corner reflector of another radar cross section that one embodiment of the invention provides
Figure.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
As shown in Figure 1, a kind of visible angular domain corner reflector of radar cross section provided in an embodiment of the present invention, including：
First cant board 101, the second cant board 102, bottom plate 103, the visible angular domain adjusters of the first radar cross section RCS
104 and the 2nd visible angular domain adjuster of RCS 105；
The right-angle side of first cant board 101, the right-angle side of second cant board 102 and the bottom plate 103 it is straight
The arm of angle is vertical two-by-two and conllinear two-by-two, wherein the equal length of conllinear right-angle side two-by-two；
The visible angular domain adjuster 104 of first RCS is connected with first cant board 101 and the bottom plate 103；
The visible angular domain adjuster 105 of 2nd RCS is connected with second cant board 102 and the bottom plate 103.
In embodiments of the present invention, the right-angle side of the right-angle side of the first cant board, the right-angle side of the second cant board and bottom plate
Conllinear two-by-two, i.e. the first cant board, the second cant board and bottom plate are arranged in a mutually vertical manner, and can reduce RCS magnitudes to the greatest extent
Decaying.And the visible angular domain adjusters of the first RCS are connected with the first cant board and bottom plate, and by the visible angular domains of the 2nd RCS
Adjuster is connected with the second cant board and bottom plate, can make electromagnetic wave on the visible angular domain corner reflector of radar cross section
Ejection area becomes smaller, so that the width of the visible angular domains of RCS narrows, to realize the visible angular domain angle of enhancing radar cross section
The purpose of reflector applications flexibility.
Embodiment two
In order to realize that the width of the visible angular domains of RCS narrows by the visible angular domain corner reflector of radar cross section, in this hair
In a bright embodiment, the visible angular domain adjuster of the first RCS length conllinear with the right-angle side conllinear two-by-two and described
The ratio of the length of side of conllinear right-angle side is the predetermined dielectric-slab dimension ratio factor two-by-two, wherein the first RCS can
See angular domain adjuster and the visible angular domain adjusters of the 2nd RCS, the conllinear equal length with the right-angle side conllinear two-by-two.
In embodiments of the present invention, since the visible angular domain adjusters of the first RCS are connected with the first cant board and bottom plate, because
This, the visible angular domain adjusters of the first RCS are conllinear with conllinear right-angle side two-by-two, are the visible angular domain adjusters of the first RCS and
The right-angle side that one cant board and bottom plate are lain mutually in line is conllinear.And the visible angular domain adjusters of the 2nd RCS and the second cant board and bottom plate
It is connected, and the visible angular domain adjusters of the first RCS and the visible angular domain adjusters of the 2nd RCS, it is conllinear with conllinear right-angle side two-by-two
The shape of equal length, the i.e. visible angular domain adjusters of the first RCS and the visible angular domain adjusters of the 2nd RCS is symmetrical in minute surface, so that
Under the premise of fully ensuring that through the visible angular domain adjusters of the first RCS and the 2nd RCS visible angular domain adjuster regulating effects, make
The coordination handsome in appearance of the visible angular domain corner reflector of radar cross section.And the visible angular domain adjusters of the first RCS and the 2nd RCS can
See that the angular domain adjuster length conllinear with conllinear right-angle side two-by-two respectively, and the ratio of the length of side of right-angle side conllinear two-by-two exist
In the value range of the predetermined dielectric-slab dimension ratio factor, you can pass through the visible angular domain corner reflector of radar cross section
It realizes that the width of the visible angular domains of RCS narrows, and then realizes and improve the visible angular domain corner reflector application flexibility of radar cross section
Purpose.
Embodiment three
In order to enhance the application flexibility of the visible angular domain corner reflector of radar cross section, in an embodiment of the present invention,
The dielectric-slab dimension ratio factor and the visible angular domain width of RCS, meet following formula：
Y=ax3+bx2+cx+d
Wherein, y characterizes the visible angular domain width of the RCS, and x characterizes the dielectric-slab dimension ratio factor, and a characterizations are true in advance
Fixed the first regulatory factor, b characterize predetermined second regulatory factor, c characterizes predetermined third regulatory factor, d tables
Levy predetermined 4th regulatory factor.
In embodiments of the present invention, it according to actual demand, can be determined by the visible angular domain width of the required RCS of determination
The dielectric-slab dimension ratio factor, and then can determine the size of the visible angular domain corner reflector of radar cross section, it can also be by true
The fixed length of side of conllinear right-angle side, the conllinear length of the first RCS visible angular domain adjuster and the visible angular domain adjusters of the 2nd RCS two-by-two
Degree, determines the visible angular domain width of RCS.
Example IV
In an embodiment of the present invention, the shape of first cant board, second cant board and the bottom plate includes：
Square or isosceles right triangle；
When the shape of first cant board, second cant board and the bottom plate is isosceles right triangle,
The value of first regulatory factor is -48, and the value of second regulatory factor is 61, the value of the third regulatory factor
It is -61, the value of the 4th regulatory factor is 48；
When the shape of first cant board, second cant board and the bottom plate is square, described first
The value of regulatory factor is 4, and the value of second regulatory factor is -3, and the value of the third regulatory factor is -26, described
The value of 4th regulatory factor is 25.
In embodiments of the present invention, the shape of the first cant board, the second cant board and bottom plate can be identical, can not also
Together.But when the shape difference of the first cant board, the second cant board and bottom plate, the variation of magnitude can be caused, i.e., it can the amount of making
Grade decaying is serious.It therefore, can by radar cross section when the shape all same of the first cant board, the second cant board and bottom plate
See that angular domain corner reflector realizes that the visible angular domain reductions of RCS are more preferable.
That is, when the shape of the first cant board, the second cant board and bottom plate is isosceles right triangle,
Y=-48x3+61x2-61x+48
When the shape of the first cant board, the second cant board and bottom plate is square,
Y=4x3-3x2-26x+25
It should be noted that the shape of the first cant board, the second cant board and bottom plate can carry at least one right angle
Polygon, for example, rectangle, equilateral triangle, the pentagon at least one right angle, six sides at least one right angle
Shape.
Embodiment five
In an embodiment of the present invention, when the shape of first cant board, second cant board and the bottom plate is equal
For isosceles right triangle when, the shape of the first the RCS visible angular domain adjuster and the visible angular domain adjusters of the 2nd RCS
For triangular pyramid；
When the shape of first cant board, second cant board and the bottom plate is square, described first
The shape of the visible angular domain adjusters of RCS and the visible angular domain adjusters of the 2nd RCS is triangular prism shape.
In embodiments of the present invention, the shape of the first cant board, the second cant board and bottom plate is isosceles right triangle
Or it is square, the corresponding shape of the visible angular domain adjusters of the first RCS and the visible angular domain adjusters of the 2nd RCS is triangular pyramid
Or triangular prism shape, it can fully ensure that the visible angular domain adjusters of the first RCS and the visible angular domain adjuster regulating effects of the 2nd RCS
Under the premise of so that the more attractive coordination of moulding of the visible angular domain corner reflector of radar cross section.
Embodiment six
In an embodiment of the present invention, the value range of the dielectric-slab dimension ratio factor is (0,1).
In embodiments of the present invention, the dielectric-slab dimension ratio factor is the visible angular domain adjusters of the first RCS or the 2nd RCS
It can be seen that the length that angular domain adjuster is conllinear with conllinear right-angle side two-by-two, and the length of side of right-angle side conllinear two-by-two ratio.It is situated between
The scutum dimension ratio factor is less than or equal to 0, then is characterized in the visible angular domain corner reflector of radar cross section and the first RCS is not present
It can be seen that angular domain adjuster or the visible angular domain adjusters of the 2nd RCS, and when more than or equal to 1, then the visible angular domain adjusters of the first RCS and
The visible angular domain adjusters of 2nd RCS can then cause the visible angular domain corner reflector of radar cross section to be unable to fully play regulation and control effect
Fruit causes the reduction that cannot achieve the visible angular domains of RCS.
It should be noted that dielectric-slab dimension ratio factor value can be 0.2,0.4,0.6,0.8.
Embodiment seven
In an embodiment of the present invention, first cant board, second cant board, the bottom plate, the first RCS
It can be seen that the material of angular domain adjuster and the visible angular domain adjusters of the 2nd RCS is metal material.
In embodiments of the present invention, the first cant board, the second cant board, bottom plate, the visible angular domain adjusters of the first RCS and
The material of the visible angular domain adjusters of two RCS can be steel, copper material, aluminium, alloy, iron material.
Embodiment eight
In an embodiment of the present invention, the thickness range of first cant board, second cant board and the bottom plate
It is [3mm, 7mm].
In embodiments of the present invention, the thickness range of the first cant board, the second cant board and bottom plate is [3mm, 7mm],
It can make the visible angular domain corner reflector mistake of radar cross section to avoid the blocked up of the first cant board, the second cant board and bottom plate
It is heavy to influence to use, it can also avoid excessively thin and so that the visible angular domain corner reflector of radar cross section is easy deformation, and then influence
Realize the reduction of the visible angular domains of RCS.
It should be noted that the thickness of the first cant board, the second cant board and bottom plate can be 3mm, 5mm, 7mm, 5mm is
The optimum thickness value of first cant board, the second cant board and bottom plate.
Embodiment nine
In an embodiment of the present invention, the length of side of conllinear right-angle side two-by-two and first cant board, described the
The RCS for the solid that two cant boards and the bottom plate are formed meets following formula：
Wherein, the length of side of conllinear right-angle side, ε characterize predetermined plate shape coefficient two-by-two described in l characterizations, and S characterizes institute
The RCS for the solid that the first cant board, second cant board and the bottom plate are formed is stated, λ characterizes wavelength.
In embodiments of the present invention, it can determine that the first cant board, the second cant board and bottom plate are mutual according to actual demand
The length of side of conllinear right-angle side when vertical, the i.e. length of side of conllinear right-angle side two-by-two, then can determine first by above-mentioned formula
Cant board, the second cant board and bottom plate are formed by the RCS of solid.
It is equally possible that determining that the first cant board, the second cant board and bottom plate are formed by geometry according to actual demand
The RCS of body, and then determine the length of side of conllinear right-angle side two-by-two.
Embodiment ten
In an embodiment of the present invention, when the shape of first cant board, second cant board and the bottom plate is equal
For isosceles right triangle when, the template coefficient value be 3/4；
When the shape of first cant board, second cant board and the bottom plate is square, the template
Coefficient value is 1/12.
In embodiments of the present invention, the shape of the first cant board, the second cant board and bottom plate can be identical, can not also
Together.When being reflected between the first cant board, the second cant board and bottom plate in order to avoid electromagnetic wave, due to the first cant board, the second side
Riser is different with the area of bottom plate and leads to the variation of magnitude, the shape all same of the first cant board, the second cant board and bottom plate
When, the RCS that the first cant board, the second cant board and bottom plate are formed by solid is more preferable, and the first cant board, the second side
The shape of riser and bottom plate is isosceles right triangle or square, is not only convenient for making, also helping radar cross section can
See the assembling of angular domain corner reflector.
As shown in Fig. 2, show that the shape of the first cant board, the second cant board and bottom plate is square, and dielectric-slab
The RCS spatial distribution maps of the visible angular domain corner reflector of radar cross section when the dimension ratio factor is 0.5.
As shown in figure 3, show that the shape of the first cant board, the second cant board and bottom plate is isosceles right triangle,
And the dielectric-slab dimension ratio factor be 0.5 when the visible angular domain corner reflector of radar cross section RCS spatial distribution maps.
As shown in figure 4, show that the shape of the first cant board, the second cant board and bottom plate is square, and dielectric-slab
The RCS spatial distribution maps of the visible angular domain corner reflector of radar cross section when the dimension ratio factor is 0.8.
As shown in figure 5, show that the shape of the first cant board, the second cant board and bottom plate is isosceles right triangle,
And the dielectric-slab dimension ratio factor be 0.8 when the visible angular domain corner reflector of radar cross section RCS spatial distribution maps.
According to fig. 2 with Fig. 3, Fig. 4 and Fig. 5 as it can be seen that the dielectric-slab dimension ratio factor under the same conditions, first is edge-on
The visible angular domain width of RCS when the shape of plate, the second cant board and bottom plate is square, than the first cant board, second edge-on
The shape of plate and bottom plate is that the visible angular domain width of RCS of isosceles right triangle is tighter narrow.
According to fig. 2 with Fig. 4, Fig. 3 and Fig. 5 as it can be seen that the first cant board, the second cant board and bottom plate shape all same
Under the conditions of, the dielectric-slab dimension ratio factor is bigger, and the visible angular domain width of RCS the tight narrow.
To sum up, the size of the first RCS of control visible angular domain adjuster and the visible angular domain adjusters of the 2nd RCS, that is, control
The dielectric-slab dimension ratio factor processed, you can the width of the visible angular domains of control RCS.By RCS spatial distribution maps it is found that total two-by-two
The length of the right-angle side of line be fixed value under conditions of, with the visible angular domain adjusters of the first RCS and the visible angular domain tune of the 2nd RCS
The increase of device size is saved, i.e. the width of the increase of the dielectric-slab dimension ratio factor, the visible angular domains of RCS narrows.
In order to more clearly illustrate the technical solution and advantage of this life, below with the first cant board, the second cant board and
The shape of bottom plate is isosceles right triangle, and the visible angular domain adjusters of the first RCS and the visible angular domain adjusters of the 2nd RCS
For shape is triangular pyramid, as shown in fig. 6, to the visible angular domain corner reflection of radar cross section provided in an embodiment of the present invention
Device is described in detail, including：
First cant board (AOB), the second cant board (AOC), bottom plate (BOC), the visible angular domain adjusters (DBEF) of the first RCS
Angular domain adjuster (HCIG) visible with the 2nd RCS.
AO is the right-angle side of the first cant board and the second cant board lain mutually in line；
BO is the right-angle side that the first cant board and bottom plate are lain mutually in line；
CO is the right-angle side that the second cant board and bottom plate are lain mutually in line；
AO is mutually perpendicular to BO and CO respectively, and BO is mutually perpendicular to OC, and the equal length of AO, BO and CO；
OZ is the perpendicular bisector of BC；
The visible angular domain adjusters (DBEF) of first RCS angular domain adjuster (HCIG) visible with the 2nd RCS is about AOZ pairs of face
Claim, i.e. DF and HG equal lengths, DE and HI equal lengths, FE and GI equal lengths, DB and HC equal lengths, BE and IC length phases
Deng BF and GC equal lengths；
Wherein, DF is perpendicular to AB, and FE is perpendicular to BC, and DE is perpendicular to BC；
HI is perpendicular to BC, HG perpendicular to OC, and GI is perpendicular to BC；
The ratio of the length of BF and BO is the dielectric-slab dimension ratio factor；
The ratio of the length of GC and OC is the dielectric-slab dimension ratio factor；
The value range of the dielectric-slab dimension ratio factor is (0,1).
In order to more clearly illustrate the technical solution and advantage of this life, below with the first cant board, the second cant board and
The shape of bottom plate is square, and the shape of the visible angular domain adjusters of the first RCS and the visible angular domain adjusters of the 2nd RCS is
For triangular prism shape, as shown in fig. 7, being carried out to the visible angular domain corner reflector of radar cross section provided in an embodiment of the present invention detailed
Thin description, including：
First cant board (LKOM), the second cant board (KQPO), bottom plate (MOPN), the visible angular domain adjusters of the first RCS
(LSR-MTU) and the visible angular domain adjusters (QWV-PXY) of the 2nd RCS.
KO is the right-angle side of the first cant board and the second cant board lain mutually in line；
MO is the right-angle side that the first cant board and bottom plate are lain mutually in line；
PO is the right-angle side that the second cant board and bottom plate are lain mutually in line；
KO is mutually perpendicular to MO and PO respectively, and MO is mutually perpendicular to OP, and the equal length of KO, MO and PO；
The visible angular domain adjusters (LSR-MTU) of first RCS angular domain adjuster (QWV-PXY) visible with the 2nd RCS is about face
KNO is symmetrical in minute surface, i.e. LR and QV equal lengths, RS and VW equal lengths, LS and WQ equal lengths, MU and YP equal lengths,
MT and XP equal lengths, TU and XY equal lengths, wherein LS and LR equal lengths, WQ and VQ equal lengths；
RU is respectively perpendicular to LK and MO, and LS is respectively perpendicular to MN and LS perpendicular to LK, ST；
VX is respectively perpendicular to KQ and OP, and WQ is respectively perpendicular to WQ and NP perpendicular to KQ, WX；
The ratio of the length of MU and MO is the dielectric-slab dimension ratio factor；
The ratio of the length of YP and OP is the dielectric-slab dimension ratio factor.
The value range of the dielectric-slab dimension ratio factor is (0,1).
In conclusion each embodiment of the present invention at least has the advantages that：
1, in an embodiment of the present invention, the right-angle side of the first cant board, the right-angle side of the second cant board and bottom plate is straight
The arm of angle is conllinear two-by-two, i.e. the first cant board, the second cant board and bottom plate are arranged in a mutually vertical manner, and can reduce RCS to the greatest extent
The decaying of magnitude.And the visible angular domain adjusters of the first RCS are connected with the first cant board and bottom plate, and the 2nd RCS is visible
Angular domain adjuster is connected with the second cant board and bottom plate, and electromagnetic wave can be made in the visible angular domain corner reflector of radar cross section
On ejection area become smaller so that the width of the visible angular domains of RCS narrows, to realize the visible angle of enhancing radar cross section
The purpose of domain corner reflector application flexibility.
2, in an embodiment of the present invention, since the visible angular domain adjusters of the first RCS are connected with the first cant board and bottom plate
It connects, therefore, the visible angular domain adjusters of the first RCS are conllinear with conllinear right-angle side two-by-two, are the visible angular domain adjusters of the first RCS
It is conllinear with the right-angle side that the first cant board and bottom plate are lain mutually in line.And the visible angular domain adjusters of the 2nd RCS and the second cant board and
Bottom plate is connected, and the visible angular domain adjusters of the first RCS and the visible angular domain adjusters of the 2nd RCS, with conllinear right-angle side two-by-two
Collinear lengths are equal, i.e. the shape of the visible angular domain adjusters of the first RCS and the visible angular domain adjusters of the 2nd RCS is symmetrical in minute surface,
So that fully ensuring that the premise by the first RCS visible angular domain adjuster and the visible angular domain adjuster regulating effects of the 2nd RCS
Under, make the coordination handsome in appearance of the visible angular domain corner reflector of radar cross section.And the visible angular domain adjusters of the first RCS and second
The visible angular domain adjusters of the RCS length conllinear with conllinear right-angle side two-by-two respectively, and the length of side of right-angle side conllinear two-by-two
Ratio is in the value range of the predetermined dielectric-slab dimension ratio factor, you can passes through the visible angular domain angle of radar cross section
Reflector realizes that the width of the visible angular domains of RCS narrows, and then realizes and improve the visible angular domain corner reflector application of radar cross section
The purpose of flexibility.
3, in an embodiment of the present invention, according to actual demand, can by the visible angular domain width of the required RCS of determination,
It determines the dielectric-slab dimension ratio factor, and then can determine the size of the visible angular domain corner reflector of radar cross section, can also lead to
Cross being total to for the determining length of side of conllinear right-angle side, the visible angular domain adjusters of the first RCS and the 2nd visible angular domain adjusters of RCS two-by-two
Line length determines the visible angular domain width of RCS.
4, in an embodiment of the present invention, the shape of the first cant board, the second cant board and bottom plate can be identical, can also
It is different.But when the shape difference of the first cant board, the second cant board and bottom plate, the variation of magnitude can be caused, i.e., can be made
Magnitude decaying is serious.Therefore, when the shape all same of the first cant board, the second cant board and bottom plate, pass through radar cross section
It can be seen that angular domain corner reflector realizes that the visible angular domain reductions of RCS are more preferable.
5, in an embodiment of the present invention, the shape of the first cant board, the second cant board and bottom plate is isosceles right angle three
Angular or square, the corresponding shape of the visible angular domain adjusters of the first RCS and the visible angular domain adjusters of the 2nd RCS is trigone
Taper or triangular prism shape can fully ensure that the visible angular domain adjusters of the first RCS and the visible angular domain adjuster regulation and control of the 2nd RCS
Under the premise of effect so that the more attractive coordination of moulding of the visible angular domain corner reflector of radar cross section.
6, in an embodiment of the present invention, the dielectric-slab dimension ratio factor is the visible angular domain adjusters of the first RCS or
The visible angular domain adjusters of the two RCS length conllinear with conllinear right-angle side two-by-two, and the length of side of right-angle side conllinear two-by-two ratio
Value.The dielectric-slab dimension ratio factor is less than or equal to 0, then is characterized in the visible angular domain corner reflector of radar cross section that there is no the
The visible angular domain adjusters of one RCS or the visible angular domain adjusters of the 2nd RCS, and when more than or equal to 1, then the visible angular domain tune of the first RCS
Device and the visible angular domain adjusters of the 2nd RCS are saved, then the visible angular domain corner reflector of radar cross section can be caused to be unable to fully play
Regulating effect causes the reduction that cannot achieve the visible angular domains of RCS.
7, in an embodiment of the present invention, the first cant board, the second cant board, bottom plate, the visible angular domain adjusters of the first RCS
The material of angular domain adjuster visible with the 2nd RCS can be steel, copper material, aluminium, alloy, iron material.
8, in an embodiment of the present invention, the thickness range of the first cant board, the second cant board and bottom plate be [3mm,
7mm], the visible angular domain angle of radar cross section can be made anti-to avoid the blocked up of the first cant board, the second cant board and bottom plate
Emitter is excessively heavy to be influenced to use, and can also be avoided excessively thin and so that the visible angular domain corner reflector of radar cross section is easy deformation, into
And influence to realize the reduction of the visible angular domains of RCS.
9, in an embodiment of the present invention, the first cant board, the second cant board and bottom plate can be determined according to actual demand
The length of side of conllinear right-angle side when being mutually perpendicular to, the i.e. length of side of conllinear right-angle side two-by-two, then can determine by above-mentioned formula
First cant board, the second cant board and bottom plate are formed by the RCS of solid.
10, in an embodiment of the present invention, the shape of the first cant board, the second cant board and bottom plate can be identical, also may be used
With difference.When being reflected between the first cant board, the second cant board and bottom plate in order to avoid electromagnetic wave, due to the first cant board,
Two cant boards are different with the area of bottom plate and lead to the variation of magnitude, and the shape of the first cant board, the second cant board and bottom plate is equal
When identical, the RCS that the first cant board, the second cant board and bottom plate are formed by solid is more preferable, and the first cant board,
The shape of two cant boards and bottom plate is isosceles right triangle or square, is not only convenient for making, and also helps radar scattering and cuts
The assembling of the visible angular domain corner reflector in face.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of visible angular domain corner reflector of radar cross section, which is characterized in that including：First cant board, the second cant board,
Bottom plate, the visible angular domain adjusters of the first radar cross section RCS and the visible angular domain adjusters of the 2nd RCS；
The right-angle side of the right-angle side of first cant board, the right-angle side of second cant board and the bottom plate it is vertical two-by-two and
It is conllinear two-by-two, wherein the equal length of conllinear right-angle side two-by-two；
The visible angular domain adjuster of first RCS is connected with first cant board and the bottom plate；
The visible angular domain adjuster of 2nd RCS is connected with second cant board and the bottom plate.
2. the visible angular domain corner reflector of radar cross section according to claim 1, which is characterized in that
The visible angular domain adjuster of first RCS length conllinear with the right-angle side conllinear two-by-two and described conllinear two-by-two
The ratio of the length of side of right-angle side be the predetermined dielectric-slab dimension ratio factor, wherein the visible angular domain tune of the first RCS
Device and the visible angular domain adjusters of the 2nd RCS are saved, the conllinear equal length with the right-angle side conllinear two-by-two.
3. the visible angular domain corner reflector of radar cross section according to claim 2, which is characterized in that
The dielectric-slab dimension ratio factor and the visible angular domain width of RCS, meet following formula：
Y=ax3+bx2+cx+d
Wherein, y characterizes the visible angular domain width of the RCS, and x characterizes the dielectric-slab dimension ratio factor, and a characterizations are predetermined
First regulatory factor, b characterize predetermined second regulatory factor, c characterizes predetermined third regulatory factor, d characterizations are pre-
The 4th regulatory factor first determined.
4. the visible angular domain corner reflector of radar cross section according to claim 3, which is characterized in that
The shape of first cant board, second cant board and the bottom plate includes：Square or isosceles right triangle；
It is described when the shape of first cant board, second cant board and the bottom plate is isosceles right triangle
The value of first regulatory factor is -48, and the value of second regulatory factor is 61, the value of the third regulatory factor is -
61, the value of the 4th regulatory factor is 48；
When the shape of first cant board, second cant board and the bottom plate is square, described first is adjusted
The value of the factor is 4, and the value of second regulatory factor is -3, and the value of the third regulatory factor is the -26, the described 4th
The value of regulatory factor is 25.
5. the visible angular domain corner reflector of radar cross section according to claim 4, which is characterized in that
It is described when the shape of first cant board, second cant board and the bottom plate is isosceles right triangle
The shape of the visible angular domain adjusters of first RCS and the visible angular domain adjusters of the 2nd RCS is triangular pyramid；
When the shape of first cant board, second cant board and the bottom plate is square, the first RCS can
See that the shape of angular domain adjuster and the visible angular domain adjusters of the 2nd RCS is triangular prism shape.
6. the visible angular domain corner reflector of radar cross section according to claim 4, which is characterized in that
The value range of the dielectric-slab dimension ratio factor is (0,1).
7. the visible angular domain corner reflector of radar cross section according to claim 1, which is characterized in that
First cant board, second cant board, the bottom plate, the visible angular domain adjusters of the first RCS and described
The material of the visible angular domain adjusters of two RCS is metal material.
8. the visible angular domain corner reflector of radar cross section according to claim 1, which is characterized in that
The thickness range of first cant board, second cant board and the bottom plate is [3mm, 7mm].
9. according to any visible angular domain corner reflector of radar cross section in claim 1 to 8, which is characterized in that
The length of side of conllinear right-angle side two-by-two is formed with first cant board, second cant board and the bottom plate
The RCS of solid meets following formula：
Wherein, the length of side of the l characterizations conllinear right-angle side two-by-two, ε characterize predetermined plate shape coefficient, and S characterizes described the
The RCS for the solid that one cant board, second cant board and the bottom plate are formed, λ characterize wavelength.
10. the visible angular domain corner reflector of radar cross section according to claim 9, which is characterized in that
It is described when the shape of first cant board, second cant board and the bottom plate is isosceles right triangle
Template coefficient value is 3/4；
When the shape of first cant board, second cant board and the bottom plate is square, the template coefficient
Value is 1/12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810372844.7A CN108646222B (en) | 2018-04-24 | 2018-04-24 | Radar scattering cross section visible angle domain corner reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810372844.7A CN108646222B (en) | 2018-04-24 | 2018-04-24 | Radar scattering cross section visible angle domain corner reflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108646222A true CN108646222A (en) | 2018-10-12 |
| CN108646222B CN108646222B (en) | 2020-04-07 |
Family
ID=63747504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810372844.7A Active CN108646222B (en) | 2018-04-24 | 2018-04-24 | Radar scattering cross section visible angle domain corner reflector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108646222B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444821A (en) * | 2019-01-04 | 2019-03-08 | 北京环境特性研究所 | A kind of controllable corner reflector that polarizes |
| CN109459736A (en) * | 2019-01-04 | 2019-03-12 | 北京环境特性研究所 | A kind of radar drone design method and apparatus |
| CN109490863A (en) * | 2019-01-04 | 2019-03-19 | 北京环境特性研究所 | A method of extracting trihedral angle parameters of structural dimension |
| CN109765537A (en) * | 2019-01-04 | 2019-05-17 | 北京环境特性研究所 | A kind of adjustable corner reflector and corner reflector polarization adjusting method of polarizing |
| 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 |
| CN110824435A (en) * | 2019-11-13 | 2020-02-21 | 北京环境特性研究所 | Water accumulation preventing corner reflector and mounting method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4990918A (en) * | 1989-12-21 | 1991-02-05 | University Of British Columbia | Radar reflector to enhance radar detection |
| SU1774304A1 (en) * | 1991-02-04 | 1992-11-07 | Nii Prikladnych | Prismatic corner reflector |
| CN201615950U (en) * | 2009-12-18 | 2010-10-27 | 中国国土资源航空物探遥感中心 | Corner reflector for multi-angle observation |
| JP2014132222A (en) * | 2013-01-04 | 2014-07-17 | Ihi Aerospace Co Ltd | Corner Reflector |
| CN104483672A (en) * | 2015-01-05 | 2015-04-01 | 山东省地质环境监测总站 | INSAR corner reflector |
| CN105466365A (en) * | 2015-11-12 | 2016-04-06 | 中国科学院光电研究院 | Method for obtaining RCS precision of radar corner reflector |
| CN107037407A (en) * | 2017-04-20 | 2017-08-11 | 北京环境特性研究所 | A kind of broad-adjustable corner reflector of RCS main lobes orientation |
-
2018
- 2018-04-24 CN CN201810372844.7A patent/CN108646222B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4990918A (en) * | 1989-12-21 | 1991-02-05 | University Of British Columbia | Radar reflector to enhance radar detection |
| SU1774304A1 (en) * | 1991-02-04 | 1992-11-07 | Nii Prikladnych | Prismatic corner reflector |
| CN201615950U (en) * | 2009-12-18 | 2010-10-27 | 中国国土资源航空物探遥感中心 | Corner reflector for multi-angle observation |
| JP2014132222A (en) * | 2013-01-04 | 2014-07-17 | Ihi Aerospace Co Ltd | Corner Reflector |
| CN104483672A (en) * | 2015-01-05 | 2015-04-01 | 山东省地质环境监测总站 | INSAR corner reflector |
| CN105466365A (en) * | 2015-11-12 | 2016-04-06 | 中国科学院光电研究院 | Method for obtaining RCS precision of radar corner reflector |
| CN107037407A (en) * | 2017-04-20 | 2017-08-11 | 北京环境特性研究所 | A kind of broad-adjustable corner reflector of RCS main lobes orientation |
Non-Patent Citations (1)
| Title |
|---|
| 吴春光等: "活动板类角反射器的RCS计算", 《长春理工大学学报（自然科学版）》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444821A (en) * | 2019-01-04 | 2019-03-08 | 北京环境特性研究所 | A kind of controllable corner reflector that polarizes |
| CN109459736A (en) * | 2019-01-04 | 2019-03-12 | 北京环境特性研究所 | A kind of radar drone design method and apparatus |
| CN109490863A (en) * | 2019-01-04 | 2019-03-19 | 北京环境特性研究所 | A method of extracting trihedral angle parameters of structural dimension |
| CN109765537A (en) * | 2019-01-04 | 2019-05-17 | 北京环境特性研究所 | A kind of adjustable corner reflector and corner reflector polarization adjusting method of polarizing |
| CN109459736B (en) * | 2019-01-04 | 2020-10-13 | 北京环境特性研究所 | Radar target design method and device |
| CN109765537B (en) * | 2019-01-04 | 2020-10-13 | 北京环境特性研究所 | Corner reflector with adjustable polarization and polarization adjusting method of corner reflector |
| CN110824435A (en) * | 2019-11-13 | 2020-02-21 | 北京环境特性研究所 | Water accumulation preventing corner reflector and mounting method thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108646222B (en) | 2020-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108646222A (en) | A kind of visible angular domain corner reflector of radar cross section | |
| KR100419946B1 (en) | Reflecting plate, reflection type polarizing plate and reflection type liquid crystal display devive | |
| CN205691764U (en) | A kind of adjustable corner reflector of RCS main lobe direction | |
| CN108631064A (en) | A kind of two-band corner reflector and its design method | |
| CN102192440A (en) | Backlight module | |
| CN108427101A (en) | A kind of RCS passive analogs device | |
| US2221890A (en) | Pebbled surface | |
| JP2007094047A (en) | Reflection type screen | |
| CN104279510A (en) | Optical lens, light emitting device, and display | |
| CN109765537B (en) | Corner reflector with adjustable polarization and polarization adjusting method of corner reflector | |
| CN106129632A (en) | Bandwidth can the random surface of careful design | |
| CN107037407A (en) | A kind of broad-adjustable corner reflector of RCS main lobes orientation | |
| Rodriguez | Basic rules for anechoic chamber design, Part one: RF absorber approximations | |
| CN109444821B (en) | Controllable corner reflector polarizes | |
| CN105633592A (en) | Artificial electromagnetic shielding material | |
| JPH0731323B2 (en) | Surface light source element | |
| CN106646391A (en) | Pitching direction width adjustable corner reflector for RCS main lobe | |
| DE2308701A1 (en) | RADAR REFLECTOR CONSISTING OF SEVERAL TRIPLE MIRRORS | |
| CN203839486U (en) | Frequency-adjustable 90-degree bender and beam splitter based on auto-collimation effect | |
| CN209928046U (en) | Diffusion film | |
| CN207571436U (en) | A kind of apparatus of direct type backlight unit and its reflector plate | |
| JP3056633B2 (en) | Decorative groove structure of building board | |
| EP3644357A1 (en) | Surface-mounted element | |
| CN214037805U (en) | Plastic plate | |
| CN219261405U (en) | Acoustic diffusion plate |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |