CN106785441A - A kind of method for searching star of antenna for satellite communication in motion - Google Patents
A kind of method for searching star of antenna for satellite communication in motion Download PDFInfo
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- CN106785441A CN106785441A CN201611076647.8A CN201611076647A CN106785441A CN 106785441 A CN106785441 A CN 106785441A CN 201611076647 A CN201611076647 A CN 201611076647A CN 106785441 A CN106785441 A CN 106785441A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
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Abstract
The present invention provides a kind of method for searching star of antenna for satellite communication in motion, and the present invention calculates the corresponding angle of pitch of satellite and polarizing angle first, and turns the angle value that the azimuth of antenna and polarizing angle arrival are calculated；Then antenna azimuth does uniform speed scanning, and self-adapting detecting beacon signal；After detecting signal, secondary coarse scanning is then carried out；Finally carry out essence scanning completion and seek star process.Method for searching star of the invention can improve the antijamming capability of detection algorithm according to noise circumstance adaptive polo placement detection threshold value.Method for searching star of the invention, the characteristics of with star speed fast, high precision, accuracy rate high is sought.
Description
Technical field
The present invention relates to a kind of method for searching star of antenna for satellite communication in motion, belong to antenna for satellite communication in motion SERVO CONTROL field, can be extensive
For vehicle-mounted, carrier-borne, airborne antenna for satellite communication in motion.
Background technology
Antenna for satellite communication in motion in the mobile vehicle motion process such as vehicle, ship, aircraft, can real-time tracking geo-stationary orbit defend
Star, by satellite forward signal, realizes the information transfers such as continual voice, data, image, can meet broadband under mobile condition
The need for satellite communication.
For reduces cost, antenna for satellite communication in motion generally uses inexpensive MEMS inertial navigations, and MEMS inertial navigation precision is low, it is impossible to provide
Course information, accordingly, it would be desirable to uniform speed scanning is done at antenna for satellite communication in motion azimuth, completion initially seeks star.Due to not knowing beacon in advance
The range value of signal, generally requires rule of thumb one fixed detection threshold of setting, and antenna azimuth carries out 0 ° ~ 360 ° even
Speed scanning, while gathering beacon signal, is compared with the threshold value for setting, and thinks that capture is defended if signal is more than threshold value
Star, is transferred to tracking mode, and completion initially seeks star.This method has two aspect shortcomings：On the one hand using the detection of fixed threshold value
Algorithm, is easily disturbed by extraneous environmental noise, causes error detection, causes initially to seek star failure；On the other hand, algorithm is not carried out
Secondary coarse scanning, when beacon signal is stronger, easily causes antenna sidelobe and points to satellite, and track algorithm cannot converge to antenna master
Valve, causes initial star of seeking to fail.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of method for searching star of antenna for satellite communication in motion.
The method for searching star of antenna for satellite communication in motion of the invention, comprises the following steps：
（1）According to the roll angle and Angle of Trim of carrier, the angle of pitch of satellite is calculatedAnd polarizing angle；
（2）The angle of pitch and polarizing angle of antenna are driven, respectively with the angle of pitch for calculatingAnd polarizing angleIt is consistent；
（3）Azimuth is operated with constant speed, carries out first time coarse scanning, meanwhile, the beacon signal of beacon receiver is gathered, with
The detection threshold value of calculating is compared, if beacon signal is more than threshold value, then it is assumed that antenna for satellite communication in motion captures satellite；
（4）After capture satellite, with current antenna position as starting point, azimuth and the angle of pitch enter respectively according to spiral trajectory
The secondary coarse scanning of row, while record beacon signal maximum during secondary coarse scanning, and respective antenna positional information, treat
The secondary coarse scanning time reaches setting value, then stop second coarse scanning, and turn antenna to second coarse scanning beacon signal
The corresponding position of maximum；
（5）After antenna reaches the corresponding position of beacon signal maximum, with current antenna position as starting point, azimuth and pitching
Angle carries out smart scanning according to spiral trajectory, while beacon signal maximum and antenna position information during writing scan,
Treat that smart sweep time reaches setting value, then stop essence scanning, and turn antenna to the corresponding position of smart scanning for beacon signal maximum
Put, star process is sought in completion.
The angle of pitch of the calculating satellite in step 1And polarizing angleComputing formula it is as follows：
In formula
WhereinIt is carrier Angle of Trim,It is carrier roll angle,It is the current azimuth of antenna；、WithRespectively
The corresponding azimuth of geographic coordinate system Satellite, the angle of pitch and polarizing angle, computing formula are as follows：
WhereinIt is the longitude of satellite,It is the longitude of antenna for satellite communication in motion,It is the latitude of antenna for satellite communication in motion.
Detection threshold value in step 3Th m Computing formula is：
In formulaIt isIndividual beacon signal sampled value,It is the beacon signal sampled value number of reference,It is inspection
Survey the factor, meanwhile, in order to improve detection performance, detected beacon signal sampled value and reference beacon signal sampled value it
Between set X protection location.
The azimuth of the scanning helix track in step 4 and angle of pitch computing formula are respectively：
Wherein,It is sweep time,It is the scan period.
The azimuth of the scanning helix track in step 5 and angle of pitch computing formula are respectively：
。
Method for searching star of the invention can improve the anti-of detection algorithm according to noise circumstance adaptive polo placement detection threshold value
Interference performance.Method for searching star of the invention, the characteristics of with star speed fast, high precision, accuracy rate high is sought.
Brief description of the drawings
Fig. 1 is flow chart of the invention.
Fig. 2 is the beacon signal detection criterion schematic diagram in the present invention.
Fig. 3 is the secondary coarse scanning track schematic diagram in the present invention.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
Fig. 1 is flow chart of the invention, it can be seen that the method for searching star of antenna for satellite communication in motion of the invention, including
Following steps：
（1）According to the roll angle and Angle of Trim of carrier, the angle of pitch of satellite is calculatedAnd polarizing angle, computing formula is as follows：
In formula
WhereinIt is carrier Angle of Trim,It is carrier roll angle,It is the current azimuth of antenna；、WithRespectively
The corresponding azimuth of geographic coordinate system Satellite, the angle of pitch and polarizing angle, computing formula are as follows：
WhereinIt is the longitude of satellite,It is the longitude of antenna for satellite communication in motion,It is the latitude of antenna for satellite communication in motion.
（2）The angle of pitch and polarizing angle of antenna are driven, is reachedWith。
（3）Fig. 2 is the detection criteria schematic diagram of beacon signal, and azimuth is with constant speed°/s operatings, carry out the
Coarse scanning, meanwhile, the beacon signal of beacon receiver is gathered, with the detection threshold value for calculatingTh m It is compared, if letter
Mark signal is more than threshold value, then it is assumed that antenna for satellite communication in motion captures satellite.ThemThe corresponding detection threshold value of individual beacon signal sampled valueTh m For：
In formulaIt isIndividual beacon signal sampled value,It is the beacon signal sampled value number of reference,It is detecting factor, meanwhile, in order to improve detection performance, believe with the beacon of reference in detected beacon signal sampled value
X=10 protection location is set between number sampled value.
（4）Fig. 3 is azimuth and the geometric locus of the angle of pitch of secondary coarse scanning, with current antenna position as starting point,
Azimuth and the angle of pitch are respectively according to trackWithOperating, carries out secondary coarse scanning, while recording secondary coarse scan
Beacon signal maximum and antenna position information during retouching, treat that the secondary coarse scanning time reaches setting value, then stop second
Coarse scanning, and turn antenna to second coarse scanning beacon signal maximum value position.Azimuth and pitching angle sweep track are：
Wherein,It is sweep time,It is the scan period.
（5）With current antenna position as starting point, azimuth and the angle of pitch are respectively according to trackWith,
Smart scanning is carried out, while beacon signal maximum and antenna position information during writing scan, treat that smart sweep time reaches
Setting value, then stop essence scanning, and turns antenna to smart scanning for beacon signal maximum position, and star process is sought in completion.Azimuth
It is with pitching angle sweep track：
。
Claims (4)
1. a kind of method for searching star of antenna for satellite communication in motion, it is characterised in that：Described method is comprised the following steps：
（1）According to the roll angle and Angle of Trim of carrier, the angle of pitch of satellite is calculatedAnd polarizing angle；
（2）The angle of pitch and polarizing angle of antenna are driven, respectively with the angle of pitch for calculatingAnd polarizing angleIt is consistent；
（3）Azimuth is operated with constant speed, carries out first time coarse scanning, meanwhile, gather the beacon signal width of beacon receiver
Degree, is compared with the detection threshold value for calculating, if beacon signal is more than threshold value, then it is assumed that antenna for satellite communication in motion capture is defended
Star；
（4）After capture satellite, with current antenna position as starting point, azimuth and the angle of pitch enter respectively according to spiral trajectory
The secondary coarse scanning of row, while record beacon signal maximum during secondary coarse scanning, and respective antenna positional information, treat
The secondary coarse scanning time reaches setting value, then stop second coarse scanning, and turn antenna to second coarse scanning beacon signal
The corresponding position of maximum；
（5）After antenna reaches the corresponding position of beacon signal maximum, with current antenna position as starting point, azimuth and pitching
Angle carries out smart scanning according to spiral trajectory, while beacon signal maximum and antenna position information during writing scan,
Treat that smart sweep time reaches setting value, then stop essence scanning, and turn antenna to the corresponding position of smart scanning for beacon signal maximum
Put, star process is sought in completion.
2. the method for searching star of antenna for satellite communication in motion according to claim 1, it is characterised in that：Calculating satellite in step 1
The angle of pitchAnd polarizing angleComputing formula it is as follows：
In formula
WhereinIt is carrier Angle of Trim,It is carrier roll angle,It is the current azimuth of antenna；、WithRespectively
The corresponding azimuth of reason coordinate system Satellite, the angle of pitch and polarizing angle, computing formula are as follows：
WhereinIt is the longitude of satellite,It is the longitude of antenna for satellite communication in motion,It is the latitude of antenna for satellite communication in motion.
3. the method for searching star of antenna for satellite communication in motion according to claim 1, it is characterised in that：Step（3）In detection threshold
ValueTh m Computing formula is：
In formulaIt isIndividual beacon signal sampled value,It is the beacon signal sampled value number of reference,It is inspection
Survey the factor, meanwhile, in order to improve detection performance, detected beacon signal sampled value and reference beacon signal sampled value it
Between set X protection location.
4. the method for searching star of antenna for satellite communication in motion according to claim 1, it is characterised in that：Step（4）In scanning spiral
The azimuth of line tracking and angle of pitch computing formula are respectively：
Wherein,It is sweep time,It is the scan period；
Step（5）In scanning helix track azimuth and angle of pitch computing formula be respectively：
。
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| CN201611076647.8A CN106785441A (en) | 2016-11-30 | 2016-11-30 | A kind of method for searching star of antenna for satellite communication in motion |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797119A (en) * | 2017-09-05 | 2018-03-13 | 深圳航天东方红海特卫星有限公司 | Sea surface drifting buoy communication control method based on big-dipper satellite |
| CN109768390A (en) * | 2018-12-27 | 2019-05-17 | 中国人民解放军火箭军工程大学 | A kind of satellite communication in moving dynamic quick capturing method |
| CN109921844A (en) * | 2019-04-03 | 2019-06-21 | 天通盛邦通信科技（苏州）有限公司 | A kind of communication in moving searches the update method of star thresholding and to star method |
| CN110190399A (en) * | 2019-06-27 | 2019-08-30 | 中信海洋（舟山）卫星通信有限公司 | The wave method for searching star of Shipborne satellite antenna |
| CN110412623A (en) * | 2019-06-21 | 2019-11-05 | 成都天锐星通科技有限公司 | A kind of satellite capture method and antenna system based on multiple beamwidth |
| CN110515101A (en) * | 2019-06-21 | 2019-11-29 | 成都天锐星通科技有限公司 | A kind of satellite quick capturing method and phased array antenna system |
| CN111221013A (en) * | 2019-11-29 | 2020-06-02 | 中国兵器装备集团自动化研究所 | Variable baseline double-antenna directional system and use method thereof |
| CN115566428A (en) * | 2022-10-11 | 2023-01-03 | 江苏领创星通卫星通信科技有限公司 | Satellite finding method, device, equipment and medium for communication-in-motion antenna |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797119A (en) * | 2017-09-05 | 2018-03-13 | 深圳航天东方红海特卫星有限公司 | Sea surface drifting buoy communication control method based on big-dipper satellite |
| CN109768390A (en) * | 2018-12-27 | 2019-05-17 | 中国人民解放军火箭军工程大学 | A kind of satellite communication in moving dynamic quick capturing method |
| CN109768390B (en) * | 2018-12-27 | 2019-09-17 | 中国人民解放军火箭军工程大学 | A kind of satellite communication in moving dynamic quick capturing method |
| CN109921844A (en) * | 2019-04-03 | 2019-06-21 | 天通盛邦通信科技（苏州）有限公司 | A kind of communication in moving searches the update method of star thresholding and to star method |
| CN110412623A (en) * | 2019-06-21 | 2019-11-05 | 成都天锐星通科技有限公司 | A kind of satellite capture method and antenna system based on multiple beamwidth |
| CN110515101A (en) * | 2019-06-21 | 2019-11-29 | 成都天锐星通科技有限公司 | A kind of satellite quick capturing method and phased array antenna system |
| CN110412623B (en) * | 2019-06-21 | 2022-11-22 | 成都天锐星通科技有限公司 | Satellite capturing method based on multi-beam width and antenna system |
| CN110190399A (en) * | 2019-06-27 | 2019-08-30 | 中信海洋（舟山）卫星通信有限公司 | The wave method for searching star of Shipborne satellite antenna |
| CN111221013A (en) * | 2019-11-29 | 2020-06-02 | 中国兵器装备集团自动化研究所 | Variable baseline double-antenna directional system and use method thereof |
| CN111221013B (en) * | 2019-11-29 | 2023-06-09 | 中国兵器装备集团自动化研究所 | Variable baseline dual-antenna orientation system and application method thereof |
| CN115566428A (en) * | 2022-10-11 | 2023-01-03 | 江苏领创星通卫星通信科技有限公司 | Satellite finding method, device, equipment and medium for communication-in-motion antenna |
| CN115566428B (en) * | 2022-10-11 | 2023-11-17 | 江苏领创星通卫星通信科技有限公司 | Star finding method, device, equipment and medium for communication-in-motion antenna |
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Application publication date: 20170531 |