CN106777536A - Electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation - Google Patents
Electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation Download PDFInfo
- Publication number
- CN106777536A CN106777536A CN201611056365.1A CN201611056365A CN106777536A CN 106777536 A CN106777536 A CN 106777536A CN 201611056365 A CN201611056365 A CN 201611056365A CN 106777536 A CN106777536 A CN 106777536A
- Authority
- CN
- China
- Prior art keywords
- physical quantity
- field
- electro
- dimensional
- physical
- 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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Abstract
Electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation of the invention, study and select suitable data structure, display logic and visualization technique, after the calculating of fine Electromagnetic Simulation terminates, dimension and represented content according to Electromagnetic Simulation result data, 2-D data is visualized with geometric ways such as curve, broken lines under rectangular co-ordinate, polar coordinates, three-dimensional data is visualized in the way of color under rectangular coordinate system, convenient use person quickly and accurately understands the physical quantity result that fine Electromagnetic Simulation is calculated.By fine electromagnetism numerical simulation post processing, designer can be in the reasonability without processing test design in the case of in kind, it is possible to analyze its electromagnetic compatibility problem.Product design costses can be reduced, shortens the research and development of products cycle.Requirement to research staff's professional skill can be reduced simultaneously so that design simplerization of antenna and microwave system, popular.
Description
Technical field
The present invention relates to a kind of electro-magnetic far-field two, three-dimensional visual processing method, in particular, more particularly to a kind of base
In the electro-magnetic far-field two, three-dimensional visual processing method of fine Electromagnetic Simulation.
Background technology
Electromagnetic field numerical simulation calculate refer to using numerical computation method frequency domain or time domain solve Maxwell equations and its
Derivative other equations.With the development of computer technology and Numerical Calculation of Electromagnetic Fields method, electromagnetic field numerical simulation is extensive
It is applied to the electromagnetism such as microwave and millimetre-wave attenuator, radar, precise guidance, electromagnetic compatibility, medical diagnosis, navigation and geological prospecting neck
Domain, the modernization necessary means as installation electromagnetical specificity analysis with design, with huge practical value.
In recent years, the design of large-scale antenna array layout etc. " complicated, TV university " system proposes more smart to Electromagnetic Simulation calculating
Really, more efficient active demand, generally requires the fine electromagnetism of the large-scale parallel of cores up to ten thousand or even hundreds of thousands core parallel scale
The business softwares such as simulation calculation, traditional FEKO, HFSS is limited by parallel check figure cannot meet large-scale parallel emulation
The demand of calculating.Fine Electromagnetic Simulation can carry out accurate simulation to electromagnetic problems such as antenna and microwave systems.Based on fine electricity
Magnetic numerical method is emulated, and can analyze the indexs such as antenna pattern, gain, the S parameter of antenna designed by user.With reference to
The modeling of CAD partial parameters can be optimized to antenna performance, can also calculate the RCS (RCS) of target, analysis emulation
The design of the microwave devices such as the electromagnetic property of microwave device, assisted microwave synthesis wave filter, power splitter.
, it is necessary to the Simulation result data to producing is researched and analysed to know emulation after fine Electromagnetic Simulation is completed
Series of results, the intuitively directional diagram in graphical representation far field, the electromagnetism distribution map near field and CURRENT DISTRIBUTION cloud atlas etc..Finely
Electromagnetic Simulation engineering in general is calculated on supercomputer, can produce a large amount of, complicated data, if directly studying these
Data, it is not only time-consuming, and easily produce deviation.With the raising of computing power, the scale of Solve problems is continued to increase, multiple
Miscellaneous degree is improved constantly all to be increased, it is necessary to process and calculate the data volume for producing, and the analysis and explanation of result of calculation are increasingly stranded
Difficulty, has had a strong impact on the efficiency and quality of visualization in scientific computing.
The physical significance in far field refers to the electromagnetic field of infinite point in theory, typically take in practice 10 wavelength or
Electromagnetic field beyond 100 wavelength, is mainly used to characterize the radiation characteristic of electromagnetic field.It is three-dimensional in far field electromagnetic simulation calculation
Directional diagram, two dimensional plot are related to numerous physical quantitys, and same physical quantity also has the component of different directions, each
Component also includes real part, imaginary part as plural number.In addition, the normalized problem of component can be also related to.Therefore, construction display
During figure, it is necessary to the accurate related data read in destination file.
The content of the invention
A kind of shortcoming in order to overcome above-mentioned technical problem of the invention, there is provided electro-magnetic far-field based on fine Electromagnetic Simulation
2nd, three-dimensional visual processing method.
Electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation of the invention, it is characterised in that logical
Following steps are crossed to realize：
A) obtains electro-magnetic far-field direction and value, because the data of electro-magnetic far-field are with spherical coordinates 's
What form was given, it is first determinedThe span in directionAnd its value within the range, it is set toIt is then determined that span (the θ in θ directionsmin, θmax) and its value within the range, it is set to θ1、
θ2、...、θn2；
B) obtains the value of physical quantity, works as directionTake successivelyDirection θ takes θ successively1、
θ2、...、θn2When, store every physical parameter of target to be analyzed；If what is analyzed is the antenna performance of target, store
Every physical parameter beReal part,Imaginary part, E_ θ real parts, E_ θ imaginary parts, E absolute values, EdB values, gain G ain, side
To coefficient；If what is analyzed is the RCS of target, the every physical parameter for storing isReal part,
Imaginary part, E_ θ real parts, E_ θ imaginary parts, E absolute values, E dB values, RCS；
Wherein：E is electric-field intensity,E_ θ are respectively electric-field intensity edgeDirection, the numerical value in θ directions, EdB values are electricity
The field ratio of gains, direction coefficient is the directivity factor of antenna, and RCS is the radar area of target；
C) normalized of physical quantitys, if treating normalized physical quantity set Gi={ Gi1、Gi2、...、Gij、...、
Gi(n1×n2) represent, GiMiddle i represents the species of physical quantity, GijRepresent j-th numerical value in i class physical quantitys, then it is right by formula (1)
It carries out radius normalized：
Its kind of Gimax=max { Gi}、Gimin=min { Gi, rijIt is j-th normalized result of numerical value, 1 in i class physical quantitys
≤j≤n1×n2；
D) conversion from spherical coordinates to three-dimensional rectangular coordinate, if normalization after the i-th class physical quantity in j-th numerical value rijInstitute
Deflection in corresponding spherical coordinates is respectivelyθl, corresponding three-dimensional rectangular coordinate is (xij,yij,zij), defining solid can
The acquiescence maximum radius of regarding displaying is R；In order to realize displaying of the view in three-dimensional rectangular coordinate first quartile, using formula
(2) by j-th numerical value r in the i-th class physical quantityijSpherical coordinates be converted into three-dimensional rectangular coordinate：
zij=R*rij cosθl
Wherein, 1≤k≤n1,1≤l≤n2；
E) two-dimensional curves are drawn, according to the section to be drawn physical quantity,A certain angle is selected in direction and θ directions
Used as fixed value, and other direction by the institute of the respective physical amount to be drawn in the section a little, is carried out as independent variable
The treatment of step c) and step d), you can obtain curve of the physical quantity to be shown in the section；
F) 3 dimensional drawings are drawn,, as independent variable, the selection physical quantity to be shown exists for direction and θ directionsAccording to
It is secondary to takeθ is taken successively1、θ2、...、θn2When institute a little, carry out the place of step c) and step d)
Reason, you can obtain the curved surface object figure of the physical quantity to be shown.
Electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation of the invention, it is describedValue model
Enclose forThe span of the θ is
(0 °, 180 °), θ1、θ2、...、θn2=0,1,2 ..., 180 °.
The antenna parameters such as antenna pattern, gain, main lobe width, the minor level of aerial radiation problem Main Analysis antenna
And S parameter.Need to provide several driving sources of conventional antenna, such as the delta sources of wire antenna, Waveguide slot day for radiation problem
The ripple port of line, the feed of microstrip antenna, current source, magnetic current source.Scattering problems are primarily used to analyze the radar scattering of target
Section (RCS), is used to judge the Stealth Fighter of the targets such as aircraft naval vessel.The driving source of scattering problems needs to support that plane wave swashs
Encourage, any additional source forcing.RCS at distance objective any distance position of orientation can be calculated (as specified the near field on certain line
RCS)。
The beneficial effects of the invention are as follows：Shortcoming in order to overcome above-mentioned technical problem of the invention, it is suitable to study and select
Data structure, display logic and visualization technique, after the calculating of fine Electromagnetic Simulation terminates, according to Electromagnetic Simulation result data
Dimension and represented content, 2-D data is carried out with geometric ways such as curve, broken lines under rectangular co-ordinate, polar coordinates
Visualization, three-dimensional data is visualized in the way of color under rectangular coordinate system, and convenient use person is quickly and accurately
Solve the physical quantity result that fine Electromagnetic Simulation is calculated.
By fine electromagnetism numerical simulation post processing, designer can check in the case of without processing material object
The reasonability of design, it is possible to analyze its electromagnetic compatibility problem.Product design costses can be reduced, shortens the research and development of products cycle.Together
When can reduce requirement to research staff's professional skill so that it is design simplerization of antenna and microwave system, popular.
Brief description of the drawings
Fig. 1 is in the present inventionIt is 0 °, the data storage format that θ changes in its span；
Fig. 2 is in the present inventionIt is 1 °, the data storage format that θ changes in its span；
Fig. 3 is in the present inventionIt is 360 °, the data storage format that θ changes in its span.
Specific embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation of the invention, it is characterised in that logical
Following steps are crossed to realize：
A) obtains electro-magnetic far-field direction and value, because the data of electro-magnetic far-field are with spherical coordinates 's
What form was given, it is first determinedThe span in directionAnd its value within the range, it is set toIt is then determined that span (the θ in θ directionsmin, θmax) and its value within the range, it is set to θ1、
θ2、...、θn2；
Wherein,Span can be The span of θ can be (0 °, 180 °), θ1、θ2、...、θn2=0,1,2 ..., 180 °.
B) obtains the value of physical quantity, works as directionTake successivelyDirection θ takes θ successively1、
θ2、...、θn2When, store every physical parameter of target to be analyzed；If what is analyzed is the antenna performance of target, store
Every physical parameter beReal part,Imaginary part, E_ θ real parts, E_ θ imaginary parts, E absolute values, E dB values, gain G ain, side
To coefficient；If what is analyzed is the RCS of target, the every physical parameter for storing isReal part,
Imaginary part, E_ θ real parts, E_ θ imaginary parts, E absolute values, E dB values, RCS；
Wherein：E is electric-field intensity,E_ θ are respectively electric-field intensity edgeDirection, the numerical value in θ directions, E dB values are
The electric field ratio of gains, direction coefficient is the directivity factor of antenna, and RCS is the radar area of target；
As shown in figure 1, givingIt is 0 °, the data storage format that θ changes in its span, its kind
8000.000000 is frequency, and Pha is representedTheta represents θ；When Pha takes 0 °, Theta is by 0 ° to 180 ° change (due to a piece
Width limitation only gives the changing value that Theta is by 0 ° to 29 °), the 3rd row to the 7th column data is followed successively byReal part,It is empty
Portion, E_ θ real parts, E_ θ imaginary parts, E absolute values, the 8th row and the 9th row are corresponding RCS values, and last is classified as unnecessary row, does not do
Treatment.
As shown in Fig. 2 in giving the present inventionIt it is 1 °, the data storage format that θ changes in its span, Fig. 3 gives
Go out in the present inventionIt is 360 °, the data storage format that θ changes in its span, it can be seen that,At (0 °, 360 °)
During scope, θ change in the range of (0 °, 180 °), the value that it includes is counted as 361 are multiplied by 181.
C) normalized of physical quantitys, if treating normalized physical quantity set Gi={ Gi1、Gi2、...、Gij、...、
Gi(n1×n2) represent, GiMiddle i represents the species of physical quantity, GijRepresent j-th numerical value in i class physical quantitys, then it is right by formula (1)
It carries out radius normalized：
Its kind of Gimax=max { Gi}、Gimin=min { Gi, rijIt is j-th normalized result of numerical value, 1 in i class physical quantitys
≤j≤n1×n2；
D) conversion from spherical coordinates to three-dimensional rectangular coordinate, if normalization after the i-th class physical quantity in j-th numerical value rijInstitute
Deflection in corresponding spherical coordinates is respectivelyθl, corresponding three-dimensional rectangular coordinate is (xij,yij,zij), defining solid can
The acquiescence maximum radius of regarding displaying is R；In order to realize displaying of the view in three-dimensional rectangular coordinate first quartile, using formula
(2) by j-th numerical value r in the i-th class physical quantityijSpherical coordinates be converted into three-dimensional rectangular coordinate：
zij=R*rij cosθl
Wherein, 1≤k≤n1,1≤l≤n2；
E) two-dimensional curves are drawn, according to the section to be drawn physical quantity,A certain angle is selected in direction and θ directions
Used as fixed value, and other direction by the institute of the respective physical amount to be drawn in the section a little, is carried out as independent variable
The treatment of step c) and step d), you can obtain curve of the physical quantity to be shown in the section；
F) 3 dimensional drawings are drawn,, as independent variable, the selection physical quantity to be shown exists for direction and θ directionsAccording to
It is secondary to takeθ is taken successively1、θ2、...、θn2When institute a little, carry out the place of step c) and step d)
Reason, you can obtain the curved surface object figure of the physical quantity to be shown.
Claims (2)
1. a kind of electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation, it is characterised in that by following
Step is realized：
A) obtains electro-magnetic far-field direction and value, because the data of electro-magnetic far-field are with spherical coordinates Form
Be given, it is first determinedThe span in directionAnd its value within the range, it is set toIt is then determined that span (the θ in θ directionsmin, θmax) and its value within the range, it is set to θ1、
θ2、...、θn2；
B) obtains the value of physical quantity, works as directionTake successivelyDirection θ takes θ successively1、θ2、...、θn2
When, store every physical parameter of target to be analyzed；If what is analyzed is the antenna performance of target, the every physics for storing
Parameter isReal part,Imaginary part, E_ θ real parts, E_ θ imaginary parts, E absolute values, E dB values, gain G ain, direction coefficient；Such as
What fruit to be analyzed is the RCS of target, then the every physical parameter for storing isReal part,Imaginary part, E_ θ realities
Portion, E_ θ imaginary parts, E absolute values, E dB values, RCS；
Wherein：E is electric-field intensity,E_ θ are respectively electric-field intensity edgeDirection, the numerical value in θ directions, E dB values are electric field
The ratio of gains, direction coefficient is the directivity factor of antenna, and RCS is the radar area of target；
C) normalized of physical quantitys, if treating normalized physical quantity set Gi={ Gi1、Gi2、...、Gij、...、
Gi(n1×n2)Represent, GiMiddle i represents the species of physical quantity, GijRepresent j-th numerical value in i class physical quantitys, then it is right by formula (1)
It carries out radius normalized：
Its kind of Gimax=max { Gi}、Gimin=min { Gi, rijIt is j-th normalized result of numerical value, 1≤j in i class physical quantitys
≤n1×n2；
D) conversion from spherical coordinates to three-dimensional rectangular coordinate, if normalization after the i-th class physical quantity in j-th numerical value rijIt is corresponding
Spherical coordinates in deflection be respectivelyθl, corresponding three-dimensional rectangular coordinate is (xij,yij,zij), define 3 d visualization
The acquiescence maximum radius of displaying is R；In order to realize displaying of the view in three-dimensional rectangular coordinate first quartile, using formula (2)
By j-th numerical value r in the i-th class physical quantityijSpherical coordinates be converted into three-dimensional rectangular coordinate：
Wherein, 1≤k≤n1,1≤l≤n2；
E) two-dimensional curves are drawn, according to the section to be drawn physical quantity,A certain angle conduct is selected in direction and θ directions
Fixed value, and other direction by the institute of the respective physical amount to be drawn in the section a little, carries out step as independent variable
C) with the treatment of step d), you can obtain curve of the physical quantity to be shown in the section；
F) 3 dimensional drawings are drawn,, as independent variable, the selection physical quantity to be shown exists for direction and θ directionsTake successivelyθ takes θ successively1、θ2、...、θn2When institute a little, carry out the treatment of step c) and step d), you can
Obtain the curved surface object figure of the physical quantity to be shown.
2. the electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation according to claim 1, it is special
Levy and be：It is describedSpan be (0 °, 360 °),The θ
Span be (0 °, 180 °), θ1、θ2、...、θn2=0,1,2 ..., 180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611056365.1A CN106777536A (en) | 2016-11-26 | 2016-11-26 | Electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611056365.1A CN106777536A (en) | 2016-11-26 | 2016-11-26 | Electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106777536A true CN106777536A (en) | 2017-05-31 |
Family
ID=58910748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611056365.1A Pending CN106777536A (en) | 2016-11-26 | 2016-11-26 | Electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106777536A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109918858A (en) * | 2019-04-22 | 2019-06-21 | 西北工业大学 | A kind of CST phantom antenna data visualization method |
| CN110502864A (en) * | 2019-08-29 | 2019-11-26 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of airframe and its electromagnet shield effect appraisal procedure |
| CN111208171A (en) * | 2020-01-12 | 2020-05-29 | 中国人民解放军国防科技大学 | Method for judging transmittance performance based on electromagnetic periodic structure impedance characteristic |
| CN112149271A (en) * | 2019-06-28 | 2020-12-29 | Aptiv技术有限公司 | Method for simulating antenna |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808204A (en) * | 2015-04-13 | 2015-07-29 | 电子科技大学 | Moving-target detecting method and imaging method of stationary transmitter bistatic forward-looking synthetic aperture radar (SAR) |
| CN105244636A (en) * | 2015-10-13 | 2016-01-13 | 北京宇航系统工程研究所 | Calculation method for conversion coefficient of electric field measurement antenna in spacecraft cabin |
-
2016
- 2016-11-26 CN CN201611056365.1A patent/CN106777536A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808204A (en) * | 2015-04-13 | 2015-07-29 | 电子科技大学 | Moving-target detecting method and imaging method of stationary transmitter bistatic forward-looking synthetic aperture radar (SAR) |
| CN105244636A (en) * | 2015-10-13 | 2016-01-13 | 北京宇航系统工程研究所 | Calculation method for conversion coefficient of electric field measurement antenna in spacecraft cabin |
Non-Patent Citations (1)
| Title |
|---|
| 孔龙星等: "一种新的电磁场数据三维绘制算法", 《现代电子技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109918858A (en) * | 2019-04-22 | 2019-06-21 | 西北工业大学 | A kind of CST phantom antenna data visualization method |
| CN112149271A (en) * | 2019-06-28 | 2020-12-29 | Aptiv技术有限公司 | Method for simulating antenna |
| CN112149271B (en) * | 2019-06-28 | 2024-02-13 | Aptiv技术有限公司 | Method for simulating antenna |
| CN110502864A (en) * | 2019-08-29 | 2019-11-26 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of airframe and its electromagnet shield effect appraisal procedure |
| CN111208171A (en) * | 2020-01-12 | 2020-05-29 | 中国人民解放军国防科技大学 | Method for judging transmittance performance based on electromagnetic periodic structure impedance characteristic |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104992001B (en) | The accurate quick calculation method of extensive MIMO array Antenna Far Field radiation field | |
| CN106777536A (en) | Electro-magnetic far-field two, three-dimensional visual processing method based on fine Electromagnetic Simulation | |
| CN104993251B (en) | A kind of large planar array Antenna measuring table cascades optimization method | |
| CN102385655B (en) | Simulation method for radiation coupling electromagnetic susceptibility of electronic equipment | |
| CN103246781A (en) | Array antenna radar cross section reduction method based on space mapping | |
| CN108957450A (en) | A kind of millimetre-wave radar GPU real time three-dimensional imaging method | |
| CN104063544A (en) | Near-field effect error analysis method | |
| CN102156764A (en) | Multi-resolution precondition method for analyzing aerial radiation and electromagnetic scattering | |
| CN102054094A (en) | Fast directional multilevel simulation method for planar microstrip circuit | |
| He et al. | A vector meshless parabolic equation method for three-dimensional electromagnetic scatterings | |
| CN109765538A (en) | The scattered field of inhomogeneous dielectric object body determines method | |
| CN104485513A (en) | Real-time integrating method for wideband antenna array | |
| CN113158485B (en) | Electromagnetic scattering simulation method for electrically large-size target under near-field condition | |
| Cakir et al. | An FDTD-based parallel virtual tool for RCS calculations of complex targets | |
| CN103065007A (en) | Antenna modeling method based on test data of directional diagram and input impedance | |
| CN106250657A (en) | A kind of wireless charging emulation mode combining MATLAB and HFSS software | |
| CN110362877A (en) | The environment electromagnetics analysis of scattering method of uncertain factor | |
| CN104915465A (en) | Metal target transient electromagnetic scattering analysis method based on delay laguerre polynomials | |
| CN104573257A (en) | High-speed algorithm for judging electromagnetic shelter based on surface element space diversity | |
| CN106709150A (en) | Fine simulation-based current distribution and near-field electromagnetic distribution three-dimensional visual method | |
| CN106503349B (en) | One type periodic structure electromagnetic characteristic of scattering quick calculation method | |
| Liu et al. | Application of Chaos Mind Evolutionary Algorithm in Antenna Arrays Synthesis. | |
| CN105205299B (en) | The quick Dimension Reduction Analysis method of TV university electromagnetic characteristic of scattering | |
| CN107305536A (en) | Mix the discontinuous Jia Lvejin methods of rank time domain | |
| CN106446377A (en) | Method and system for calculating pilot frequency multi-antenna electromagnetic field distribution |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
| RJ01 | Rejection of invention patent application after publication |