CN105337039B - Satellite antenna polarization Closed loop track method and apparatus - Google Patents
Satellite antenna polarization Closed loop track method and apparatus Download PDFInfo
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- CN105337039B CN105337039B CN201510689222.3A CN201510689222A CN105337039B CN 105337039 B CN105337039 B CN 105337039B CN 201510689222 A CN201510689222 A CN 201510689222A CN 105337039 B CN105337039 B CN 105337039B
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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
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
- H01Q3/36—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with variable phase-shifters
- H01Q3/38—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with variable phase-shifters the phase-shifters being digital
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of satellite antenna polarization Closed loop track method and apparatus, methods described includes S101, the angle of pitch to satellite antenna, azimuth and polarizing angle and carries out angle closed loop, respectively adjusts the angle of pitch, the azimuth and the polarizing angle to the first preset angle, the second preset angle and the 3rd preset angle；S102, polarization step trakcing carried out to the beacon signal of satellite according to beacon frequency, and the beacon signal is converted into by DC level signal according to the angle of pitch after adjustment, azimuth and polarizing angle；S103, the change according to DC level signal, adjust direction of rotation and the anglec of rotation of satellite antenna.Present invention use and following in elevation mode principle identical polarization tracking principle, to realize the first angle closed loop of polarization, the tracking of rear signal closed loop, while reduce the two-way interference problem of contrapolarization signal, and improve communication quality.
Description
Technical field
The present invention relates to satellite communication field, and in particular to a kind of satellite antenna polarization Closed loop track method and apparatus.
Background technology
In automatic satellite communication antenna product in the market, mostly use according to our station longitude and latitude and target satellite rail
Road position, the method calculated automatically by software obtain the gross data of polarisation angles, and control system is according to theoretical value driving stage
Change mechanism and rotate to specified location, some products may be modified according to roll angle to polar theory angle, but be belonged to
The method of open-loop tracking.
Polarization technology of closed loop is in order to improve the polarization isolation of the transmitting of satellite earth station, in order that not another to being operated in
Subscriber signal on one polarization transponder forms interference, and this is the thing that satellite companies are concerned about the most, if transmitting polarization every
Do not mixed up from degree, it will directly affect the user on another polarization transponder of work on the same frequency, be seriously that it will
It can not work.It for fixed station, need to only adjust once, will not produce this interference, and it is (portable station, vehicle-mounted for motor-driven site type
Stand, Ship Station, airborne station etc.) for, job site often can be converted, it is necessary to polarisation angles will be adjusted every time, but people
Work adjustment is time-consuming, trouble, it is also desirable to which satellite companies coordinate.Because present industrial processes level is good enough, OMT (Orth-
Mode Transducer, orthomode coupler or be duplexer) the orthogonalities of two ports of transmitting-receiving be easy to ensure,
Also just mixed up so the polarization isolation of reception has been mixed up transmitting.
And lack a kind of and following in elevation mode principle identical polarization tracking principle at present, to realize the first angle of polarization
Closed loop, the tracking of rear signal closed loop, and the two-way interference problem of contrapolarization signal is reduced, improve communication quality.
The content of the invention
Because automatic satellite communication antenna product communication quality in the market is poor, and the two-way of contrapolarization signal be present
The problem of interference, the present invention propose a kind of satellite antenna polarization Closed loop track method and apparatus.
In a first aspect, the present invention proposes a kind of satellite antenna polarization Closed loop track method, including：
S101, the angle of pitch to satellite antenna, azimuth and polarizing angle carry out angle closed loop, respectively by the angle of pitch,
The azimuth and the polarizing angle are adjusted to the first preset angle, the second preset angle and the 3rd preset angle；
S102, polarization step trakcing carried out to the beacon signal of satellite according to beacon frequency, and according to the pitching after adjustment
The beacon signal is converted into DC level signal by angle, azimuth and polarizing angle；
S103, the change according to DC level signal, adjust direction of rotation and the anglec of rotation of satellite antenna.
Preferably, step S101 includes：
Current polarizing angle and the difference angle of the 3rd preset angle are less than 10 degree.
Preferably, step S102 includes：
The beacon signal is converted into DC level signal by circular polarisation beacon satellite using the formulation signal of transponder, non-
The beacon signal is converted into DC level signal by circular polarisation beacon satellite using beacon.
Preferably, step S103 includes：
According to the change of DC level signal before and after step trakcing principle and stepping, determine satellite antenna direction of rotation and
The anglec of rotation.
Preferably, step S103 includes：
The size variation of DC level signal is determined according to power-up time, and is become according to the size of the DC level signal
Change the anglec of rotation of adjustment satellite antenna；The direction of rotation of satellite antenna is adjusted according to the both positive and negative polarity of direct current generator simultaneously.
Second aspect, the present invention also propose a kind of satellite antenna polarization Closed loop track device, it is characterised in that including：
Angle adjustment module, for carrying out angle closed loop to the angle of pitch of satellite antenna, azimuth and polarizing angle, respectively will
The angle of pitch, the azimuth and the polarizing angle are adjusted to the first preset angle, the second preset angle and the 3rd preset angle；
Polarize step trakcing module, for carrying out polarization step trakcing to the beacon signal of satellite according to beacon frequency, and
The beacon signal is converted into by DC level signal according to the angle of pitch after adjustment, azimuth and polarizing angle；
Tested rotating platform module, for the change according to DC level signal, adjust direction of rotation and the rotation of satellite antenna
Angle.
Preferably, the current polarizing angle of the angle adjustment module and the difference angle of the 3rd preset angle are less than 10
Degree.
Preferably, the beacon signal is converted into directly by the polarization step trakcing module using the formulation signal of transponder
Level signal is flowed, or the beacon signal is converted into by DC level signal using beacon.
Preferably, the tested rotating platform module is used for the change according to DC level signal before and after step trakcing principle and stepping
Change, determine direction of rotation and the anglec of rotation of satellite antenna.
Preferably, the tested rotating platform module is used for the size variation that DC level signal is determined according to power-up time, and
The anglec of rotation of satellite antenna is adjusted according to the size variation of the DC level signal；Simultaneously according to the both positive and negative polarity of direct current generator
Adjust the direction of rotation of satellite antenna.
As shown from the above technical solution, present invention use and following in elevation mode principle identical polarization tracking principle, come
The first angle closed loop of polarization, the tracking of rear signal closed loop are realized, while reduces the two-way interference problem of contrapolarization signal, and is carried
High communication quality.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these figures.
Fig. 1 is a kind of schematic flow sheet for satellite antenna polarization Closed loop track method that one embodiment of the invention provides；
Fig. 2 is a kind of structural representation for satellite antenna polarization Closed loop track device that one embodiment of the invention provides.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of invention is further described.Following examples are only used for more clear
Illustrate to Chu technical scheme, and can not be limited the scope of the invention with this.
Fig. 1 shows a kind of flow signal for satellite antenna polarization Closed loop track method that one embodiment of the invention provides
Figure, including：
S101, the angle of pitch to satellite antenna, azimuth and polarizing angle carry out angle closed loop, respectively by the angle of pitch,
The azimuth and the polarizing angle are adjusted to the first preset angle, the second preset angle and the 3rd preset angle；
S102, polarization step trakcing carried out to the beacon signal of satellite according to beacon frequency, and according to the pitching after adjustment
The beacon signal is converted into DC level signal by angle, azimuth and polarizing angle；
S103, the change according to DC level signal, adjust direction of rotation and the anglec of rotation of satellite antenna.
The following principle of satellite antenna pitch axis is first according to the theoretical calculation angle of pitch, azimuth and polarizing angle, will be bowed
The elevation angle is adjusted to the theoretical angle of pitch, and detects whether in place, and this is angle closed loop, then stepping finely tune during using come
Signal closed loop adjustment is carried out from the beacon signal level of Radio Beacon, beacon level is adjusted to maximum, this is signal closed loop.
This operation principle can also be used in polarizing angle adjustment, first according to theoretical calculation, by polarization modulation to theoretical polarizing angle, and
Detect whether in place, this is angle closed loop, then carries out signal closed loop again.
Because the earth is round, what the track of synchronous satellite was also round, and satellite and earth station antenna present position
(longitude) be not general overlapping, and this has resulted in the electric field and the electromagnetic wave signal of earth station transmitting-receiving of the electromagnetic wave signal of satellite transmitting-receiving
Direction of an electric field not on a horizontal plane, this will cause the interference of loss and the communication of signal intensity, thus this two
Individual electric field is unified in a plane, and satellite has gone up to the sky, and service and popular (many earth stations are all with same satellite),
So the polarisation angles of the satellite antenna of earth station can only be adjusted, final purpose is that satellite and earth station are unified in one three
In the coordinate system of dimension.
Wherein, stepping is the method for approaching optimum position step by step, is generally called stepping fine setting or is step trakcing, table
Show antenna towards a direction walking step by step, make a move and judge whether signal becomes greatly, continued to if big towards this
Individual direction is walked, on the contrary then should walk in the opposite direction.Radio Beacon can be regarded as a sensor, and its function is by beacon
(high-frequency signal) is converted into DC level signal, when the angle of pitch, azimuth and more accurate polarizing angle, height that Radio Beacon receives
Frequency signal is stronger, and the DC level signal provided is bigger.
The present embodiment use with following in elevation mode principle identical polarization tracking principle, to realize that the first angle of polarization is closed
Ring, the tracking of rear signal closed loop, while the two-way interference problem of contrapolarization signal is reduced, and improve communication quality.
As the preferred scheme of the present embodiment, step S101 includes：
Current polarizing angle and the difference angle of the 3rd preset angle are less than 10 degree.
Polarization modulation has individual feature, i.e., when current polarisation angles differ smaller with optimum polarization angle (within such as 10 °), pole
The level change contribution for the primary polarization beacon frequency that the smaller conversion of change angle is currently received to beacon receiver is very micro-
It is small, but contribution for polarization isolation is really clearly, namely contrapolarization beacon frequency level change clearly, and
There are two beacon signals on most satellite, one is used to track A polarization, and another is used to track B polarization.A usual satellite
In order to increase message capacity (more information can be transmitted), typically all it is operated using two mutually orthogonal polarization, such as
Have a transponder of n vertical polarization and the transponder of m horizontal polarization, A and B be used for representing user to be used it is horizontal or vertical
The transponder of polarization, it can be repeated to make on same satellite by the band frequency of form identical one of this cross polarization
With twice, that is to say, that the message capacity of satellite is added into one times.
Specifically, step S102 includes：
The beacon signal is converted into DC level signal by circular polarisation beacon satellite using the formulation signal of transponder, non-
The beacon signal is converted into DC level signal by circular polarisation beacon satellite using beacon.
Further, step S103 includes：
According to the change of DC level signal before and after step trakcing principle and stepping, determine satellite antenna direction of rotation and
The anglec of rotation.
Further, step S103 includes：
The size variation of DC level signal is determined according to power-up time, and is become according to the size of the DC level signal
Change the anglec of rotation of adjustment satellite antenna；The direction of rotation of satellite antenna is adjusted according to the both positive and negative polarity of direct current generator simultaneously.
The problem of in signal closed loop procedure be one want polaxis increase step trakcing logic, second, track what signal.
Wherein, it is relatively simple to increase polaxis step trakcing logic, if stepper motor then can be according to step trakcing principle, and passes through step
The change for entering front and rear beacon signal level determines the direction of rotation of next step；If direct current generator can be grown by power-up time
It is short to realize stepping and the adjustment of step pitch size, and the both positive and negative polarity powered by relay switching direct current generator realizes the change of direction of rotation
Change.And the signal that the step trakcing that polarizes is utilized and tracked is crucial, the signal that tracking system closed loop uses only has satellite offer
Beacon signal, control system can set the target frequency of tracking, i.e. beacon frequency to Radio Beacon.
Beacon can not be utilized to complete signal trace work on the satellite of circular polarisation beacon, but can be used on transponder
Specified signal substituting realizes this function, and this closed loop adjustment work need not be carried out on the satellite of single polarization work.Line pole
The electric field intensity direction of change be all the time it is indeclinable, and the electric field intensity direction of circular polarisation be clockwise or counterclockwise,
The satellite of one Ku frequency range typically uses the transponder of linear polarity format, and the beacon of satellite can typically use linear polarity format
Circular polarity format can also be used.
The precise signal closed loop that the polarization closed loop adjustment of the present embodiment is polarized using the step trakcing principle that polarizes, so as to
Realize higher polarization isolation and the interference of relatively low two-way contrapolarization.Polarized signal Closed loop operation should azimuth pitch stepping with
Track is carried out after terminating, and the preset contrapolarization beacon signal frequency of Radio Beacon is given automatically by control system, then controls polaxis to enter
Row stepping is finely tuned, and the level of contrapolarization beacon signal is adjusted into minimum, i.e., reversely uses step trakcing principle or make null value
Step trakcing.
Fig. 2 shows a kind of structural representation for satellite antenna polarization Closed loop track device that one embodiment of the invention provides
Figure, including：
Angle adjustment module 11, for carrying out angle closed loop to the angle of pitch of satellite antenna, azimuth and polarizing angle, respectively
The angle of pitch, the azimuth and the polarizing angle are adjusted to the first preset angle, the second preset angle and the 3rd preset angle；
Polarize step trakcing module 12, for carrying out polarization step trakcing to the beacon signal of satellite according to beacon frequency,
And the beacon signal is converted into by DC level signal according to the angle of pitch after adjustment, azimuth and polarizing angle；
Tested rotating platform module 13, for the change according to DC level signal, adjust direction of rotation and the rotation of satellite antenna
Gyration.
The present embodiment can effectively improve the polarization isolation of satellite communication antena, can not only reduce the antipole received
Change interference signal, can also equally reduce interference of the contrapolarization signal launched to other users, more conform to satellite and lead to
The specification and management for believing industry require.
As the preferred scheme of the present embodiment, the current polarizing angle of the angle adjustment module 11 and the 3rd preset angle
Difference angle be less than 10 degree.
Specifically, the beacon signal is converted into by the polarization step trakcing module 12 using the formulation signal of transponder
DC level signal, or the beacon signal is converted into by DC level signal using beacon.
Further, the tested rotating platform module 13 is used for according to DC level signal before and after step trakcing principle and stepping
Change, determine direction of rotation and the anglec of rotation of satellite antenna.
Further, the tested rotating platform module 13 is used to determine that the size of DC level signal becomes according to power-up time
Change, and the anglec of rotation of satellite antenna is adjusted according to the size variation of the DC level signal；Simultaneously according to direct current generator
Both positive and negative polarity adjusts the direction of rotation of satellite antenna.
In the specification of the present invention, numerous specific details are set forth.It is to be appreciated, however, that embodiments of the invention can be with
Put into practice in the case of these no details.In some instances, known method, structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this description.
Claims (8)
- A kind of 1. satellite antenna polarization Closed loop track method, it is characterised in that including：S101, the angle of pitch to satellite antenna, azimuth and polarizing angle carry out angle closed loop, respectively by the angle of pitch, described Azimuth and the polarizing angle are adjusted to the first preset angle, the second preset angle and the 3rd preset angle；S102, polarization step trakcing carried out to the beacon signal of satellite according to beacon frequency, and according to the angle of pitch after adjustment, side The beacon signal is converted into DC level signal by parallactic angle and polarizing angle；S103, the change according to DC level signal, adjust direction of rotation and the anglec of rotation of satellite antenna；Wherein, step S103 includes：The size variation of DC level signal is determined according to power-up time, and is adjusted according to the size variation of the DC level signal The anglec of rotation of whole satellite antenna；The direction of rotation of satellite antenna is adjusted according to the both positive and negative polarity of direct current generator simultaneously.
- 2. according to the method for claim 1, it is characterised in that step S101 includes：Current polarizing angle and the difference angle of the 3rd preset angle are less than 10 degree.
- 3. according to the method for claim 2, it is characterised in that step S102 includes：The beacon signal is converted into DC level signal, non-entelechy by circular polarisation beacon satellite using the formulation signal of transponder Change beacon satellite and the beacon signal is converted into by DC level signal using beacon.
- 4. according to the method for claim 3, it is characterised in that step S103 includes：According to the change of DC level signal before and after step trakcing principle and stepping, direction of rotation and the rotation of satellite antenna are determined Angle.
- A kind of 5. satellite antenna polarization Closed loop track device, it is characterised in that including：Angle adjustment module, for carrying out angle closed loop to the angle of pitch of satellite antenna, azimuth and polarizing angle, respectively by described in The angle of pitch, the azimuth and the polarizing angle are adjusted to the first preset angle, the second preset angle and the 3rd preset angle；Polarize step trakcing module, for carrying out polarization step trakcing to the beacon signal of satellite according to beacon frequency, and according to The beacon signal is converted into DC level signal by the angle of pitch, azimuth and polarizing angle after adjustment；Tested rotating platform module, for the change according to DC level signal, adjust direction of rotation and the anglec of rotation of satellite antenna；Wherein, the tested rotating platform module is used for the size variation that DC level signal is determined according to power-up time, and according to institute State the anglec of rotation of the size variation adjustment satellite antenna of DC level signal；Defended simultaneously according to the adjustment of the both positive and negative polarity of direct current generator The direction of rotation of star antenna.
- 6. device according to claim 5, it is characterised in that the current polarizing angle of the angle adjustment module and described the The difference angle of three preset angles is less than 10 degree.
- 7. device according to claim 6, it is characterised in that the polarization step trakcing module uses the formulation of transponder The beacon signal is converted into DC level signal by signal, or the beacon signal is converted into direct current ordinary mail using beacon Number.
- 8. device according to claim 7, it is characterised in that the tested rotating platform module is used for according to step trakcing principle With the change of DC level signal before and after stepping, direction of rotation and the anglec of rotation of satellite antenna are determined.
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| CN201510689222.3A CN105337039B (en) | 2015-10-21 | 2015-10-21 | Satellite antenna polarization Closed loop track method and apparatus |
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| CN105337039B true CN105337039B (en) | 2018-02-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602260A (en) * | 2016-12-19 | 2017-04-26 | 佛山市东成西就智能科技有限公司 | Satellite tracking control method and system |
| CN106887706B (en) * | 2017-03-17 | 2020-06-30 | 王家齐 | Electronic polarization tracking method and device for full-automatic satellite tracking communication antenna |
| CN113644989B (en) * | 2021-08-12 | 2023-11-14 | 飞天联合（北京）系统技术有限公司 | Calibration method of dual-polarized satellite antenna |
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| US6937186B1 (en) * | 2004-06-22 | 2005-08-30 | The Aerospace Corporation | Main beam alignment verification for tracking antennas |
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