CN107678001A - Anti-interference method for parallel work of front ends of multiple groups of E-band radars - Google Patents
Anti-interference method for parallel work of front ends of multiple groups of E-band radars Download PDFInfo
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- CN107678001A CN107678001A CN201710859638.4A CN201710859638A CN107678001A CN 107678001 A CN107678001 A CN 107678001A CN 201710859638 A CN201710859638 A CN 201710859638A CN 107678001 A CN107678001 A CN 107678001A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001261858 Alsodes Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures
-
- 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
- G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention provides an anti-interference method for parallel work of a plurality of groups of E-band radars, which comprises the following steps: s1: before scanning a plurality of groups of E-band radars, grouping the E-band radars; s2: and controlling each group of radars to work at intervals in sequence so as to ensure that the receiving and transmitting antennas of the group of radars and the adjacent group of radars and the opposite radar are not aligned. The invention can lead the main lobe and the first sub lobe of the transmitting and receiving antennas of the adjacent radars not to be aligned by coordinating and controlling the front ends of a plurality of groups of E-band radars to work, thereby preventing or reducing the interference of the radar transmitting signals to the adjacent radars after being received by the receiving antennas of the adjacent radars.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of multigroup E band radars front end concurrent working is anti-interference
Method.
Background technology
When airfield runway monitors runway foreign matter, usually using multiple E band radars parallel detections, but multigroup E wave bands are simultaneously
During row work, radar can produce interference between each other.
Technology more generally improves the transmission power of radar and the isolation of radar receiving antenna, physics at present
On by adjusting the mode such as interval between the installation site of antenna, increase antenna realize the front end concurrent working of E band radars
It is anti-interference, and coordinated signals are not done to the scanning mode of each radar in system, it is thus impossible to solve multigroup E wave bands thunder well
Up to the interfering during concurrent working of front end, and cost is also higher.
The content of the invention
It is an object of the invention to solve the defects of above-mentioned prior art is present, there is provided a kind of to reduce the anti-dry of interference
Disturb method.
A kind of anti-interference method of multigroup E band radars concurrent working, including：
S1：Before the scanning of multigroup E band radars, multigroup E band radars are grouped；
S2：Control every group of radar, every group of radar is spaced work successively so that between this group of radar and adjacent sets radar with
And the dual-mode antenna of this group of radar and opposite radar does not line up.
Further, method as described above, the method for the step S1 packets are：Radar is arranged side by side as 2 rows, often
Spaced radar is arranged as one group, 2 rows totally 4 groups of radars；
The step S2 includes：Set every group of the anglec of rotation asWhen first group of radar rotatesAfterwards, second group of radar
WithAngle starts to rotate, when second group of radar anglec of rotation reachesAfterwards, the 3rd group of radar withAngle starts to rotate, with this
Analogize, after first group of radar scanning end cycle, the revolving table position of first group of radar is zeroed, then first group of radar weight
Newly withThe shy face of a new round is carried out for the anglec of rotation, the radar of other groups is by that analogy.
Further, method as described above, to make every group of radar be spaced work successively in the step S2, need to ensure with
Lower two conditions：
Wherein, 4 θ ＜ ω ＜ π；ω is total rotational angle of one scan period of every group of radar；θ=θ1+2*θ2, θ is each
Its beam main lobe of radar and secondary lobe sum, θ1For the main lobe angle of each radar, θ2For the secondary lobe angle of each radar；
μ is a security standpoint for not lining up two adjacent radars.
Further, method as described above, the often removal of mines, which reaches, includes 5 radars, spaced 2 or 3 thunders
Up to for one group, 2 row is divided into 4 groups of radars, the anglec of rotation of every group of radarFor 30 °.
Beneficial effect：
The present invention controls multigroup E band radars front end to work by coordinating, and makes adjacent radar emission, the main lobe of reception antenna
And first secondary lobe can not align, so as to prevent or reduce radar emission signal through adjacent radar reception antenna receive after to adjacent
Interference caused by radar.
Brief description of the drawings
Fig. 1 is the distribution map of the multigroup E band radars of the embodiment of the present invention；
Fig. 2 is the multigroup E band radars working state figure of the embodiment of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below technical scheme in the present invention carry out it is clear
Chu, it is fully described by, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in figure 1, E band radar systems are installed on airfield runway both sides, because system operating frequency is identical, to prevent
Adjacent detection radar and opposite detection radar emission signal interfere, and radar control center is by multigroup E wave bands thunder before scanning
Up to being divided into totally 4 groups of A, B, C, D.
To prevent adjacent and opposite at work from detecting the influencing each other, it is necessary to allow control centre's synchronously each radar of radar
Working condition.By sending instructions under fiber optic network, 4 groups of foreign bodies detection radars are spaced work successively, in order that the inspection of adjacent and opposite
The dual-mode antenna that mine survey reaches can not align, and reduce mutual interference, just require first group of radar when starting scanning, other thunders
Up to the front ends of millimeter waves not transmission signal of group, i.e., without scanning, i.e.,：When first group of radar rotates a certain preset value, this is default
When value causes the dual-mode antenna of first group of radar and other group of radar not line up, the second thunder group is up to starting to scan, when second group of thunder
Up to the rotation preset value so that when the dual-mode antenna of second group of radar and other group of radar does not line up, the 3rd group of radar starts
Scanning, by that analogy.
After 180 ° of first group of scanning, the millimetre-wave radar front end of first group of radar stops emission signal, while turntable position
Put zero.First group of radar complete sweep cycle terminates.Similar, remaining organizes radar also after 180 ° of scanning, millimeter wave thunder
Stopped emission signal up to front end and revolving table position is zeroed.After zero position is returned to, the scanning of remaining each group is waited to continue to scan on,
When the dual-mode antenna of other groups of radars and the unjustified dual-mode antenna of first group of radar, this group of radar radio-frequency front-end starts to launch
Signal simultaneously enter next scan period, so as to reduce as far as possible it is adjacent and to caused by detection unit interference.
Specifically, as shown in Fig. 2 making every group of radar be spaced work successively to realize, and make this group of radar with it is adjacent
Between group radar and the dual-mode antenna of this group of radar and opposite radar does not line up, and need to meet following condition：
Specifically, it is assumed that foreign bodies detection element antenna beam antenna main lobe angle is θ1, the first secondary lobe angle is θ2.Due to
Group foreign bodies detection element antenna beam antenna main lobe or so respectively has first secondary lobe, all antenna main lobe and secondary lobe angle sums
θ calculation formula is as follows：
θ=θ1+2*θ2
In order that the first secondary lobe of A group foreign bodies detection element antenna wave beams and the first secondary lobe of B group antennas are non-intersect, B groups
Foreign bodies detection element antenna wave beam and A group foreign bodies detection element antennas squintIt is fixed more than antenna entirety beam angle θ
Justice：
θ is the overall width of beam main lobe and secondary lobe, and μ is security standpoint, by that analogy, C group foreign bodies detection element antennas
The angle of wave beam and B group foreign bodies detection element antenna wave beams is alsoD groups foreign bodies detection element antenna wave beam and C group foreign bodies detections
The angle of element antenna wave beam is alsoAssuming that total rotational angle of one swing circle of foreign bodies detection element antenna is ω, then
It should meet following condition with μ：
Preferably, it is assumed that 5 ° of radar beam main lobe width, to avoid the first radar and the wave beam of other radar main lobes from overlapping,
Antenna between each radar is separated by 30 °, and when A groups antenna is using vertically downward direction as starting point, antenna counterclockwise goes to 30 °
When, B groups antenna also starts to rotate using vertically downward direction as starting point, when antenna counterclockwise goes to 30 °, C groups antenna also with
Vertically downward direction is that starting point starts to rotate, and when antenna clockwise goes to 30 °, D groups antenna is also with vertically downward direction
Start to rotate clockwise for starting point.When A groups go to 160 °, just into Fig. 1 appearance, B groups go to 130 °, 100 ° of C groups, D
70 ° of group, each group of antenna main lobe and the first secondary lobe be not relative, when being thus avoided that multigroup E band radars front end concurrent working
Interfere.
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
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (4)
- A kind of 1. anti-interference method of multigroup E band radars concurrent working, it is characterised in that including：S1：Before the scanning of multigroup E band radars, multigroup E band radars are grouped；S2：Every group of radar is controlled, every group of radar is spaced work successively, so that between this group of radar and adjacent sets radar and originally The dual-mode antenna of group radar and opposite radar does not line up.
- 2. according to the method for claim 1, it is characterised in that the method for step S1 packet is：Radar is set side by side 2 rows are set to, often arrange spaced radar as one group, 2 rows totally 4 groups of radars；The step S2 includes：Set the anglec of rotation of every group of radar asWhen first group of radar rotatesAfterwards, second group of radar withAngle starts to rotate, when second group of radar anglec of rotation reachesAfterwards, the 3rd group of radar withAngle starts to rotate, with such Push away, after first group of radar scanning end cycle, the revolving table position of first group of radar is zeroed, then first group of radar be again WithThe scanning of a new round is carried out for the anglec of rotation, the radar of other groups is by that analogy.
- 3. according to the method for claim 2, it is characterised in that be every group of radar is spaced work successively in the step S2 Make, following two conditions need to be ensured：Wherein, 4 θ ＜ ω ＜ π；ω is total rotational angle of one scan period of every group of radar；θ=θ1+2*θ2, θ is each radar Its beam main lobe and secondary lobe sum, θ1For the main lobe angle of each radar, θ2For the secondary lobe angle of each radar；μ is a security standpoint for not lining up two adjacent radars.
- 4. according to the method for claim 2, it is characterised in that the often removal of mines, which reaches, includes 5 radars, and spaced 2 Individual or 3 radars are one group, and 2 row is divided into 4 groups of radars, the anglec of rotation of every group of radarFor 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859638.4A CN107678001B (en) | 2017-09-21 | 2017-09-21 | Anti-interference method for parallel work of front ends of multiple groups of E-band radars |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710859638.4A CN107678001B (en) | 2017-09-21 | 2017-09-21 | Anti-interference method for parallel work of front ends of multiple groups of E-band radars |
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| CN107678001A true CN107678001A (en) | 2018-02-09 |
| CN107678001B CN107678001B (en) | 2018-10-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109597066A (en) * | 2018-12-14 | 2019-04-09 | 广州辰创科技发展有限公司 | A kind of foreign matter detecting method and system of airfield runway |
| CN112346052A (en) * | 2020-11-04 | 2021-02-09 | 西安宝瑞达电子科技有限责任公司 | Multi-sensor-based horizontal omnidirectional life information non-contact detection system and method |
| CN110275170B (en) * | 2018-03-15 | 2021-12-03 | 郑州宇通客车股份有限公司 | Radar detection control method for vehicle and vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110275170B (en) * | 2018-03-15 | 2021-12-03 | 郑州宇通客车股份有限公司 | Radar detection control method for vehicle and vehicle |
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| CN112346052A (en) * | 2020-11-04 | 2021-02-09 | 西安宝瑞达电子科技有限责任公司 | Multi-sensor-based horizontal omnidirectional life information non-contact detection system and method |
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| CN107678001B (en) | 2018-10-23 |
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Address after: 510000 0601, building 07, 235 Gaotang Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU CHENCHUANG TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 510000 501-C, 11 Kehui 2nd Street, Luogang District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU CHENCHUANG TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Denomination of invention: An anti-jamming method for parallel operation of multiple groups of E-band radar front ends Effective date of registration: 20210901 Granted publication date: 20181023 Pledgee: China Minsheng Banking Corp Guangzhou branch Pledgor: GUANGZHOU CHENCHUANG TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2021980008664 |
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Address after: 510000 501, No. 265, Gaotang Road, Tianhe District, Guangzhou City, Guangdong Province (office only) (not for plant use) Patentee after: GUANGZHOU CHENCHUANG TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 510000 0601, building 07, 235 Gaotang Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU CHENCHUANG TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Date of cancellation: 20230407 Granted publication date: 20181023 Pledgee: China Minsheng Banking Corp Guangzhou branch Pledgor: GUANGZHOU CHENCHUANG TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2021980008664 |
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