CN105337039A - Satellite antenna polarized closed loop tracking method and device - Google Patents
Satellite antenna polarized closed loop tracking method and device Download PDFInfo
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- CN105337039A CN105337039A CN201510689222.3A CN201510689222A CN105337039A CN 105337039 A CN105337039 A CN 105337039A CN 201510689222 A CN201510689222 A CN 201510689222A CN 105337039 A CN105337039 A CN 105337039A
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- satellite antenna
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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
Abstract
The invention discloses a satellite antenna polarized closed loop tracking method and a device. The satellite antenna polarized closed loop tracking method comprises steps performing angle loop closing on a pitch angle, an azimuth and a polarized angle of the satellite antenna, regulating the pitch angle, the azimuth and the polarized angle to a first preset angle, a second preset angle and a third preset angle, performing polarized stepping tracking on a beacon signal of a satellite according to a beacon signal frequency, converting the beacon signal to a DC level signal according to the regulated pitch angle, the azimuth and the polarized angle, and regulating the rotation direction and the rotation angle of the satellite antenna according to the change of the DC level signal. The invention adopts the polarized tracking principle identical to the pitching tracking mode to realize the tracking of the angle closed loop and then the tracking of the signal closed loop, reduces the double-direction interference problem of the reversed polarized signal and improves the communication quality.
Description
Technical field
The present invention relates to satellite communication field, be specifically related 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 adopt according to our station longitude and latitude and target satellite orbital position, automatically the method calculated by software obtains the gross data of polarisation angles, control system rotates to assigned address according to theoretical value drives polarization mechanism, some product may be revised polar theory angle according to roll angle, but all belongs to the method for open-loop tracking.
Polarization technology of closed loop is the polarization isolation of the transmitting in order to improve satellite earth station, in order that do not form interference to the subscriber signal be operated on another polarization transponder, this is the thing that satellite companies is concerned about the most, if launch polarization isolation not mix up, directly will affect the user on work another polarization transponder on the same frequency, be seriously that it can not work.For fixed station, only need adjust once, this interference can not be produced, and for motor-driven site type (portable station, vehicle-mounted station, Ship Station, airborne station etc.), often can convert job site, need all polarisation angles will be adjusted, but artificial adjustment is time-consuming, trouble, also needs satellite companies to coordinate at every turn.Because present industrial processes level is enough good, OMT (Orth-ModeTransducer, orthomode coupler or be duplexer) the orthogonality of transmitting-receiving two ports be easy to ensure, also just mixed up so the polarization isolation received has been mixed up to launch.
And lack a kind of polarization tracking principle identical with following in elevation mode principle at present, realize the first angle closed loop polarized, the tracking of rear signal closed loop, and the two-way interference problem reducing contrapolarization signal, improve communication quality.
Summary of the invention
Because automatic satellite communication antenna product communication quality is in the market poor, and there is the problem of the two-way interference of contrapolarization signal, the present invention proposes a kind of satellite antenna polarization Closed loop track method and apparatus.
First aspect, the present invention proposes a kind of satellite antenna polarization Closed loop track method, comprising:
S101, the angle of pitch to satellite antenna, azimuth and polarizing angle carry out angle closed loop, respectively the described angle of pitch, described azimuth and described polarizing angle are adjusted to the first preset angle, the second preset angle and the 3rd preset angle;
S102, according to beacon frequency, polarization step trakcing is carried out to the beacon signal of satellite, and according to the angle of pitch after adjustment, azimuth and polarizing angle, described beacon signal is converted into DC level signal;
S103, change according to DC level signal, the direction of rotation of adjustment satellite antenna and the anglec of rotation.
Preferably, step S101 comprises:
The difference angle of current polarizing angle and described 3rd preset angle is less than 10 degree.
Preferably, step S102 comprises:
Circular polarization beacon satellite adopts the formulation signal of transponder that described beacon signal is converted into DC level signal, and non-circular polarization beacon satellite adopts beacon that described beacon signal is converted into DC level signal.
Preferably, step S103 comprises:
According to the change of DC level signal before and after step trakcing principle and stepping, determine direction of rotation and the anglec of rotation of satellite antenna.
Preferably, step S103 comprises:
According to the size variation of power-up time determination DC level signal, and adjust the anglec of rotation of satellite antenna according to the size variation of described DC level signal; Simultaneously according to the direction of rotation of the both positive and negative polarity adjustment satellite antenna of direct current machine.
Second aspect, the present invention also proposes a kind of satellite antenna polarization Closed loop track device, it is characterized in that, comprising:
Angle adjustment module, carries out angle closed loop for the angle of pitch to satellite antenna, azimuth and polarizing angle, respectively the described angle of pitch, described azimuth and described polarizing angle is adjusted to the first preset angle, the second preset angle and the 3rd preset angle;
Polarization step trakcing module, for carrying out polarization step trakcing according to beacon frequency to the beacon signal of satellite, and is converted into DC level signal according to the angle of pitch after adjustment, azimuth and polarizing angle by described beacon signal;
Tested rotating platform module, for the change according to DC level signal, the direction of rotation of adjustment satellite antenna and the anglec of rotation.
Preferably, the current polarizing angle of described angle adjustment module and the difference angle of described 3rd preset angle are less than 10 degree.
Preferably, described polarization step trakcing module adopts the formulation signal of transponder that described beacon signal is converted into DC level signal, or adopts beacon that described beacon signal is converted into DC level signal.
Preferably, described tested rotating platform module is used for the change according to DC level signal before and after step trakcing principle and stepping, determines direction of rotation and the anglec of rotation of satellite antenna.
Preferably, described tested rotating platform module is used for the size variation according to power-up time determination DC level signal, and adjusts the anglec of rotation of satellite antenna according to the size variation of described DC level signal; Simultaneously according to the direction of rotation of the both positive and negative polarity adjustment satellite antenna of direct current machine.
As shown from the above technical solution, the polarization tracking principle that employing of the present invention is identical with following in elevation mode principle, realize the first angle closed loop polarized, the tracking of rear signal closed loop, reduces the two-way interference problem of contrapolarization signal simultaneously, and improves communication quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these figure.
The schematic flow sheet of a kind of satellite antenna polarization Closed loop track method that Fig. 1 provides for one embodiment of the invention;
The structural representation of a kind of satellite antenna polarization Closed loop track device that Fig. 2 provides for one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Fig. 1 shows the schematic flow sheet of a kind of satellite antenna polarization Closed loop track method that one embodiment of the invention provides, and comprising:
S101, the angle of pitch to satellite antenna, azimuth and polarizing angle carry out angle closed loop, respectively the described angle of pitch, described azimuth and described polarizing angle are adjusted to the first preset angle, the second preset angle and the 3rd preset angle;
S102, according to beacon frequency, polarization step trakcing is carried out to the beacon signal of satellite, and according to the angle of pitch after adjustment, azimuth and polarizing angle, described beacon signal is converted into DC level signal;
S103, change according to DC level signal, the direction of rotation of adjustment satellite antenna and the anglec of rotation.
The following principle of satellite antenna pitch axis is first according to the theory calculate angle of pitch, azimuth and polarizing angle, the angle of pitch is adjusted to the theoretical angle of pitch, and whether detection puts in place, this is angle closed loop, then in the process of stepping fine setting, the beacon signal level from Radio Beacon is utilized to carry out the adjustment of signal closed loop, beacon level is adjusted to maximum, and this is signal closed loop.In polarizing angle adjustment, also can adopt this operation principle, first according to theory calculate, by polarization modulation to theoretical polarizing angle, and whether detection puts in place, and this is angle closed loop, and then carries out signal closed loop.
Because the earth is round, so the track of synchronous satellite is also round, and satellite and earth station antenna present position (longitude) are general not overlapping, this direction of an electric field just causing the electromagnetic wave signal that the electric field of electromagnetic wave signal of satellite transmitting-receiving and earth station are received and dispatched is not on a horizontal plane, this loss that will cause signal strength signal intensity and the interference communicated, so will these two electric fields be unified in a plane, and satellite has gone up to the sky, and service and popular (same satellite all used by a lot of earth station), so the polarisation angles of the satellite antenna of earth station can only be adjusted, final object is that satellite and earth station are unified in a three-dimensional coordinate system.
Wherein, stepping is the method for approaching optimum position step by step, usually be called stepping fine setting or be step trakcing, represent that antenna is towards a direction walking step by step, make a move and judge whether signal has become greatly, just continue to walk towards this direction if large, otherwise then should walk in the opposite direction.Radio Beacon can be regarded as a transducer, its function is that beacon (high-frequency signal) is converted into DC level signal, when the angle of pitch, azimuth and polarizing angle are more accurate, the high-frequency signal that Radio Beacon receives is stronger, and the DC level signal provided is larger.
The present embodiment adopts the polarization tracking principle identical with following in elevation mode principle, and realize the first angle closed loop polarized, the tracking of rear signal closed loop, reduces the two-way interference problem of contrapolarization signal simultaneously, and improve communication quality.
As the preferred version of the present embodiment, step S101 comprises:
The difference angle of current polarizing angle and described 3rd preset angle is less than 10 degree.
Polarization modulation has individual feature, namely when current polarisation angles differs less with optimum polarization angle (within 10 °), the level change contribution of the primary polarization beacon frequency that the less transfer pair beacon receiver of polarisation angles is currently received is very small, but the contribution for polarization isolation is certain clearly, also namely the level of contrapolarization beacon frequency changes clearly, and most satellite has two beacon signals, one is polarized for following the tracks of A, and another is for following the tracks of B polarization.A usual satellite is in order to increase message capacity (can transmit more information), general two mutually orthogonal polarization are all adopted to carry out work, ratio is if any the transponder of n perpendicular polarization and the transponder of m horizontal polarization, A and B is used for the transponder of horizontal or vertical polarization that representative of consumer will use, make an identical band frequency can reuse twice on same satellite by the form of this orthogonal polarization, that is the message capacity of satellite is added one times.
Particularly, step S102 comprises:
Circular polarization beacon satellite adopts the formulation signal of transponder that described beacon signal is converted into DC level signal, and non-circular polarization beacon satellite adopts beacon that described beacon signal is converted into DC level signal.
Further, step S103 comprises:
According to the change of DC level signal before and after step trakcing principle and stepping, determine direction of rotation and the anglec of rotation of satellite antenna.
Further, step S103 comprises:
According to the size variation of power-up time determination DC level signal, and adjust the anglec of rotation of satellite antenna according to the size variation of described DC level signal; Simultaneously according to the direction of rotation of the both positive and negative polarity adjustment satellite antenna of direct current machine.
Problem in signal closed loop procedure one wants polaxis to increase step trakcing logic, and two is follow the tracks of what signal.Wherein, polaxis step trakcing logic is increased comparatively simple, if stepping motor then according to step trakcing principle, and can determine next step direction of rotation by the change of beacon signal level before and after stepping; If direct current machine realizes stepping and the adjustment of step pitch size by power-up time length, and realized the conversion of direction of rotation by the both positive and negative polarity that relay switching direct current machine is powered.And the signal that step trakcing utilized and followed the tracks of that polarizes is crucial, the beacon signal that the signal that tracking system closed loop uses only has satellite to provide, control system can arrange the target frequency of tracking to Radio Beacon, i.e. beacon frequency.
The satellite of circular polarization beacon cannot utilize beacon settling signal tracking work, but the specification signal on transponder can be used to substitute realize this function, and without the need to carrying out this closed loop adjustment work on the satellite of single polarization work.The electric field intensity direction of linear polarization is indeclinable all the time, and the electric field intensity direction of circular polarization is clockwise or is rotated counterclockwise, the satellite of a Ku frequency range generally uses the transponder of linear polarity format, and the beacon of satellite generally can use linear polarity format also can use circular polarity format.
The polarization closed loop adjustment of the present embodiment utilizes polarization step trakcing principle to carry out the precise signal closed loop polarized, thus realizes higher polarization isolation and lower two-way contrapolarization interference.Polarized signal Closed loop operation should carry out after azimuth pitch step trakcing terminates, automatically Radio Beacon preset contrapolarization beacon signal frequency is given by control system, then control polaxis and carry out stepping fine setting, the level of contrapolarization beacon signal is adjusted to minimum, namely oppositely uses step trakcing principle or be called null value step trakcing.
Fig. 2 shows the structural representation of a kind of satellite antenna polarization Closed loop track device that one embodiment of the invention provides, and comprising:
Angle adjustment module 11, carries out angle closed loop for the angle of pitch to satellite antenna, azimuth and polarizing angle, respectively the described angle of pitch, described azimuth and described polarizing angle is adjusted to the first preset angle, the second preset angle and the 3rd preset angle;
Polarization step trakcing module 12, for carrying out polarization step trakcing according to beacon frequency to the beacon signal of satellite, and is converted into DC level signal according to the angle of pitch after adjustment, azimuth and polarizing angle by described beacon signal;
Tested rotating platform module 13, for the change according to DC level signal, the direction of rotation of adjustment satellite antenna and the anglec of rotation.
The present embodiment effectively can improve the polarization isolation of satellite communication antena, not only can reduce the contrapolarization interference signal received, equally also can reduce the contrapolarization signal launched to the interference of other user, more meet specification and the management expectancy of satellite communication industry.
As the preferred version of the present embodiment, the current polarizing angle of described angle adjustment module 11 and the difference angle of described 3rd preset angle are less than 10 degree.
Particularly, described polarization step trakcing module 12 adopts the formulation signal of transponder that described beacon signal is converted into DC level signal, or adopts beacon that described beacon signal is converted into DC level signal.
Further, described tested rotating platform module 13, for the change according to DC level signal before and after step trakcing principle and stepping, determines direction of rotation and the anglec of rotation of satellite antenna.
Further, described tested rotating platform module 13 for the size variation according to power-up time determination DC level signal, and adjusts the anglec of rotation of satellite antenna according to the size variation of described DC level signal; Simultaneously according to the direction of rotation of the both positive and negative polarity adjustment satellite antenna of direct current machine.
In specification of the present invention, describe a large amount of detail.But can understand, embodiments of the invention can be put into practice when not having these details.In some instances, be not shown specifically known method, structure and technology, so that not fuzzy understanding of this description.
Claims (10)
1. a satellite antenna polarization Closed loop track method, is characterized in that, comprising:
S101, the angle of pitch to satellite antenna, azimuth and polarizing angle carry out angle closed loop, respectively the described angle of pitch, described azimuth and described polarizing angle are adjusted to the first preset angle, the second preset angle and the 3rd preset angle;
S102, according to beacon frequency, polarization step trakcing is carried out to the beacon signal of satellite, and according to the angle of pitch after adjustment, azimuth and polarizing angle, described beacon signal is converted into DC level signal;
S103, change according to DC level signal, the direction of rotation of adjustment satellite antenna and the anglec of rotation.
2. method according to claim 1, is characterized in that, step S101 comprises:
The difference angle of current polarizing angle and described 3rd preset angle is less than 10 degree.
3. method according to claim 2, is characterized in that, step S102 comprises:
Circular polarization beacon satellite adopts the formulation signal of transponder that described beacon signal is converted into DC level signal, and non-circular polarization beacon satellite adopts beacon that described beacon signal is converted into DC level signal.
4. method according to claim 3, is characterized in that, step S103 comprises:
According to the change of DC level signal before and after step trakcing principle and stepping, determine direction of rotation and the anglec of rotation of satellite antenna.
5. method according to claim 3, is characterized in that, step S103 comprises:
According to the size variation of power-up time determination DC level signal, and adjust the anglec of rotation of satellite antenna according to the size variation of described DC level signal; Simultaneously according to the direction of rotation of the both positive and negative polarity adjustment satellite antenna of direct current machine.
6. a satellite antenna polarization Closed loop track device, is characterized in that, comprising:
Angle adjustment module, carries out angle closed loop for the angle of pitch to satellite antenna, azimuth and polarizing angle, respectively the described angle of pitch, described azimuth and described polarizing angle is adjusted to the first preset angle, the second preset angle and the 3rd preset angle;
Polarization step trakcing module, for carrying out polarization step trakcing according to beacon frequency to the beacon signal of satellite, and is converted into DC level signal according to the angle of pitch after adjustment, azimuth and polarizing angle by described beacon signal;
Tested rotating platform module, for the change according to DC level signal, the direction of rotation of adjustment satellite antenna and the anglec of rotation.
7. device according to claim 6, is characterized in that, the current polarizing angle of described angle adjustment module and the difference angle of described 3rd preset angle are less than 10 degree.
8. device according to claim 7, is characterized in that, described polarization step trakcing module adopts the formulation signal of transponder that described beacon signal is converted into DC level signal, or adopts beacon that described beacon signal is converted into DC level signal.
9. device according to claim 8, is characterized in that, described tested rotating platform module is used for the change according to DC level signal before and after step trakcing principle and stepping, determines direction of rotation and the anglec of rotation of satellite antenna.
10. device according to claim 8, is characterized in that, described tested rotating platform module is used for the size variation according to power-up time determination DC level signal, and adjusts the anglec of rotation of satellite antenna according to the size variation of described DC level signal; Simultaneously according to the direction of rotation of the both positive and negative polarity adjustment satellite antenna of direct current machine.
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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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| CN201510689222.3A CN105337039B (en) | 2015-10-21 | 2015-10-21 | Satellite antenna polarization Closed loop track method and apparatus |
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Cited By (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 |
| CN106887706A (en) * | 2017-03-17 | 2017-06-23 | 王家齐 | Full-automatic Satellite Tracking communication antenna electronic polarization tracking and device |
| CN113644989A (en) * | 2021-08-12 | 2021-11-12 | 飞天联合（北京）系统技术有限公司 | Calibration method of dual-polarized satellite antenna |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6937186B1 (en) * | 2004-06-22 | 2005-08-30 | The Aerospace Corporation | Main beam alignment verification for tracking antennas |
| CN1968048A (en) * | 2006-09-19 | 2007-05-23 | 北京爱科迪信息通讯技术有限公司 | Intelligent portable satellite communications earth station and its control method |
| CN101393460A (en) * | 2008-10-24 | 2009-03-25 | 南京中网通信有限公司 | Control device for closed-loop star searching system and control method thereof |
| CN101615036A (en) * | 2009-07-13 | 2009-12-30 | 南京中网卫星通信股份有限公司 | A kind of on-board closed-loop is automatically to star control device and control method thereof |
| CN101943913A (en) * | 2010-08-04 | 2011-01-12 | 北京爱科迪信息通讯技术有限公司 | Intelligent control system for portable satellite antenna and method |
-
2015
- 2015-10-21 CN CN201510689222.3A patent/CN105337039B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6937186B1 (en) * | 2004-06-22 | 2005-08-30 | The Aerospace Corporation | Main beam alignment verification for tracking antennas |
| CN1968048A (en) * | 2006-09-19 | 2007-05-23 | 北京爱科迪信息通讯技术有限公司 | Intelligent portable satellite communications earth station and its control method |
| CN101393460A (en) * | 2008-10-24 | 2009-03-25 | 南京中网通信有限公司 | Control device for closed-loop star searching system and control method thereof |
| CN101615036A (en) * | 2009-07-13 | 2009-12-30 | 南京中网卫星通信股份有限公司 | A kind of on-board closed-loop is automatically to star control device and control method thereof |
| CN101943913A (en) * | 2010-08-04 | 2011-01-12 | 北京爱科迪信息通讯技术有限公司 | Intelligent control system for portable satellite antenna and method |
Cited By (4)
| 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 |
| CN106887706A (en) * | 2017-03-17 | 2017-06-23 | 王家齐 | Full-automatic Satellite Tracking communication antenna electronic polarization tracking and device |
| CN113644989A (en) * | 2021-08-12 | 2021-11-12 | 飞天联合（北京）系统技术有限公司 | Calibration method of dual-polarized satellite 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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