CN105242250B - A kind of robot scaling equipment towards extremely low RCS target measurements - Google Patents
A kind of robot scaling equipment towards extremely low RCS target measurements Download PDFInfo
- Publication number
- CN105242250B CN105242250B CN201510827887.6A CN201510827887A CN105242250B CN 105242250 B CN105242250 B CN 105242250B CN 201510827887 A CN201510827887 A CN 201510827887A CN 105242250 B CN105242250 B CN 105242250B
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- metal cylinder
- extremely low
- scaling equipment
- robot scaling
- target measurements
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Classifications
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- 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
- G01S7/40—Means for monitoring or calibrating
Abstract
The invention belongs to the measurement category of Radar Cross Section, more particularly to a kind of robot scaling equipment towards extremely low RCS target measurements, described robot scaling equipment includes medium rope and metal cylinder, described medium rope is " Y " font, one end connects metal cylinder, eminence is fixed at another both ends, metal cylinder upper surface distance center axis is evenly distributed with circular hole, when carrying out extremely low RCS target measurements calibration, mercury is injected into circular hole and can adjust metal cylinder horizontal attitude, the problem that the coupled problem and medium rope hanging metal cylinder horizontal attitude of cylinder and low scattering support are difficult to ensure that when solving cylinder calibration.
Description
Technical field
The invention belongs to the measurement category of Radar Cross Section, and in particular to a kind of towards extremely low RCS target measurements
Calibrating method and device, the metal cylinder of center of gravity adjustable structure is carried by using the suspension of medium rope, when solving cylinder calibration
The problem that the coupled problem and medium rope hanging metal cylinder horizontal attitude of cylinder and low scattering support are difficult to ensure that.
Background technology
Metal cylinder measures conventional calibration body as microwave radar scattering section, has accurate theoretical value, comparison with standard
Influence of the metal ball opening to electromagnetic wave is small, can preferably eliminate the influence of background clutter.Metal cylinder size is by test mesh
Target scattering magnitude determines that extremely low RCS targets (referring generally to below -50dBsm) calibrate metal cylinder accordingly because RCS is small
Size is also just smaller, causes the coupling between metal cylinder and low scattering support and the influence of low scattering support to increase calibration
Error.
《Application of the set square corner reflector in RCS calibration tests》One kind is given in data and utilizes set square reflector
The method of calibration test, this method, which is closely disadvantageous in that, is only applicable to the larger calibration test of target RCS values；Standard metal ball
It is generally used for the less calibration test of target RCS values, but is disadvantageous in that, if using traditional calibrating method, right
When extremely low RCS targets carry out calibration test, because standard metal ball size Small object RCS values are small, the mistake of low scattering support introducing
Difference will be relatively large, determines calibration method using medium rope suspension type, can avoid because being added using caused by metallic support
Scattering, but now any small sample perturbations of the posture of calibration body can all bring test error.
Therefore, the present inventor discloses a kind of robot scaling equipment towards extremely low RCS target measurements, the device the advantage is that
The mode for employing the suspension of medium rope solves calibration body and the coupled problem of low scattering support, the standard metal cylinder of proposition
The method of position of centre of gravity error compensation can effectively solve the problems, such as posture.
The content of the invention
For the Scaling Problem of extremely low RCS target measurements of the prior art, the technical problem to be solved in the present invention is to carry
For a kind of robot scaling equipment towards extremely low RCS targets, to obtain more accurately target scattering characteristics.
In order to solve the above problems, the technological means that uses of the present invention for：
A kind of robot scaling equipment towards extremely low RCS target measurements, including medium rope and metal cylinder.
Described medium rope is that " Y " font uses nylon material, and lower end is fixed on metal cylinder, and another both ends are fixed on height
Place.
Described metal cylinder upper surface axial centerline be provided with a diameter of 0.1mm~0.3mm, depth be 3mm~
40mm circular hole, described medium rope are fixed in the circular hole by the way of cementing.
Described metal cylinder upper surface distance is around central axis is evenly distributed with a diameter of 0.1mm~5mm, depth is
3mm~80mm aperture.
Above-mentioned metal cylinder a diameter of 10mm~100mm, a height of 10mm~100mm.
A kind of above-mentioned robot scaling equipment towards extremely low RCS target measurements, following steps are taken to carry out the preparation before calibration
Work：
The first step：Metal cylinder is placed in dead zone center with " Y " font medium rope, makes it quiet in its natural state
Only.
Second step：After metal cylinder is static, attitude measurement is aided in using laser locator, is taken to metal cylinder upper table
The method regulation metal cylinder posture of injection mercury is horizontal in the circular hole in face.
Beneficial effects of the present invention：The present invention utilizes the compensable standard metal cylinder of position of centre of gravity error, solves Jie
The problem that matter rope hanging metal cylinder horizontal attitude is difficult to ensure that, while the coupling for avoiding metal cylinder and low scattering support is asked
Topic, the degree of accuracy of metal cylinder calibration is greatly improved so that the advantage of metal cylinder calibration can fully play.
Brief description of the drawings
The present invention shares 3 width accompanying drawings
Fig. 1 is a kind of top view of robot scaling equipment towards extremely low RCS target measurements of the invention
Fig. 2 is a kind of profile of robot scaling equipment towards extremely low RCS target measurements of the invention
Fig. 3 is a kind of design sketch of robot scaling equipment towards extremely low RCS target measurements of the invention
1- medium ropes, 2- metal cylinders
Embodiment
Present invention solves the technical problem that, the technical scheme of use and the technique effect reached are clearer to make, below
The technical scheme of the embodiment of the present invention will be described in further detail with reference to accompanying drawing.
Embodiment 1
With reference to a kind of robot scaling equipment towards extremely low RCS target measurements of the invention of figure 3, including medium rope and metal cylinder,
Described medium rope is " Y " font nylon rope, and one section of connection metal cylinder, darkroom roof is fixed at another both ends.
It is uniform at surface distance central axis 5mm thereon with reference to figure 1, Fig. 2 metal cylinders a diameter of 20mm, a height of 20mm
4 a diameter of 0.1mm are distributed with, depth is 10mm circular hole, for injecting mercury regulation metal cylinder posture.On metal cylinder
Centre of surface axial location is provided with a diameter of 0.1mm, and depth is 5mm circular hole, using cementing method mounting medium rope.
A kind of described robot scaling equipment towards extremely low RCS target measurements, following steps are taken to carry out the preparation before calibration
Work：
The first step：Metal cylinder is placed in dead zone center with " Y " font medium rope, makes it quiet in its natural state
Only.
Second step：After metal cylinder is static, attitude measurement is aided in using laser locator, is taken to metal cylinder upper table
The method regulation metal cylinder posture of injection mercury in the circular hole in face.
Embodiment 2
A kind of robot scaling equipment towards extremely low RCS target measurements, including medium rope and metal cylinder, described medium rope are
" Y " font nylon rope, one end connection diameter are 5mm, and a height of 5mm metal cylinders, darkroom roof is fixed at another both ends.Described gold
Category cylinder upper surface distance center axis is evenly distributed with 3~4 a diameter of 0.1mm, the circular hole that depth is 3mm, circular hole opening
Positioned at the upper plane of cylinder.
Embodiment 3
A kind of robot scaling equipment towards extremely low RCS target measurements, including medium rope and metal cylinder, described medium rope are
" Y " font nylon rope, one end connection diameter are 80mm, and a height of 80mm metal cylinders, darkroom roof is fixed at another both ends.Described
The circular hole that metal cylinder upper surface distance center axis is evenly distributed with 3~4 a diameter of 3mm, depth is 50mm, circular hole opening
Positioned at the upper plane of cylinder.
Claims (2)
- A kind of 1. robot scaling equipment towards extremely low RCS target measurements, it is characterised in that：The robot scaling equipment includes medium rope and metal Cylinder, medium rope are " Y " font, and using nylon material, lower end is fixed on metal cylinder, and another both ends are fixed aloft；Metal The circular hole that cylinder upper surface axial centerline is provided with a diameter of 0.1mm~0.3mm, depth is 3mm~40mm, medium rope use Cementing mode is fixed in the circular hole；Described metal cylinder upper surface distance center axis is evenly distributed with 3~4 diameters The aperture for being 5mm~80mm for 0.1mm~5mm, depth, aperture opening are located at the upper plane of round metal cylinder, taken to aperture The method regulation metal cylinder posture of interior injection mercury is horizontal.
- 2. a kind of a kind of robot scaling equipment towards extremely low RCS target measurements as claimed in claim 1, it is characterised in that described Metal cylinder a diameter of 10mm~100mm, a height of 10mm~100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510827887.6A CN105242250B (en) | 2015-11-25 | 2015-11-25 | A kind of robot scaling equipment towards extremely low RCS target measurements |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510827887.6A CN105242250B (en) | 2015-11-25 | 2015-11-25 | A kind of robot scaling equipment towards extremely low RCS target measurements |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105242250A CN105242250A (en) | 2016-01-13 |
| CN105242250B true CN105242250B (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510827887.6A Active CN105242250B (en) | 2015-11-25 | 2015-11-25 | A kind of robot scaling equipment towards extremely low RCS target measurements |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676196B (en) * | 2016-03-15 | 2018-04-10 | 北京机电工程研究所 | A kind of absorbing material plate locator of no echo scattering |
| CN106556819B (en) * | 2016-10-27 | 2019-07-19 | 上海无线电设备研究所 | Low Scattering Targets bracket of terahertz wave band and preparation method thereof |
| CN110441745B (en) * | 2019-08-16 | 2021-04-30 | 北京环境特性研究所 | Method and system for overlooking and measuring target RCS (radar cross section) based on broadband radar |
| CN110687510B (en) * | 2019-11-08 | 2021-10-19 | 北京环境特性研究所 | High-temperature target RCS test calibration method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013036969A (en) * | 2011-08-09 | 2013-02-21 | Keycom Corp | Radar cross section (rcs) measurement system |
| CN104199026B (en) * | 2014-08-28 | 2016-08-24 | 中国科学院电子学研究所 | Backscatter cross section measuring method based on stitching scanning two dimension Near-Field Radar Imaging |
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Inventor after: Zheng Li Inventor after: Wu Yaqi Inventor after: Zhang Songjing Inventor after: Dai Quanhui Inventor after: Huang Xingjun Inventor before: Zheng Li Inventor before: Wu Yaqi Inventor before: Zhang Songjing Inventor before: Dai Quanhui Inventor before: Huang Xingjun |