CN104269645A - Millimeter wave antenna centering method - Google Patents
Millimeter wave antenna centering method Download PDFInfo
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- CN104269645A CN104269645A CN201410403366.3A CN201410403366A CN104269645A CN 104269645 A CN104269645 A CN 104269645A CN 201410403366 A CN201410403366 A CN 201410403366A CN 104269645 A CN104269645 A CN 104269645A
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Abstract
The invention discloses a millimeter wave antenna centering method based on a differential rotation mode of millimeter wave communication antennas. The method only depends on positioning parameters and antenna horizontal data. The two millimeter wave antennas are centered in the differential rotation mode. Meanwhile, an analysis function is provided for the influence on overall centering from position errors. The millimeter wave antenna centering method can effectively improve the centering precision of the millimeter wave antennas, achieve automatic centering communication of the antennas, reduce the preparation work before centering and data exchange work, increase the communication confidentiality of millimeter waves, and achieve the millimeter wave communication maneuverability and reliability and the wild adaptability characteristic.
Description
Technical field
The invention belongs to the search of communication antenna extraterrestrial target, location and antenna attitude adjustment and motion servo systems technology, be specifically related to a kind of millimeter wave antenna centering method.
Background technology
As a kind of novel military communication means, millimeter wave is as a kind of means of battlefield communication, be in the starting stage at home at present, and on millimeter wave antenna method of adjustment investigation and application in use, current design philosophy and realization rate are: under random case, the axis of two antennas of communication equipment is generally positioned at two different planes, therefore antenna alignment is actually a more complicated space receives Suo Wenti.As can be seen from the projection of antenna axis in pairwise orthogonal plane (aximuthpiston and pitch plane), as long as in orientation and pitching face, adjustment can by two antenna alignments respectively.Space is received rope and is converted two simple horizontal and vertical faces receipts ropes to by this method of adjustment, can simplify and receive rope control algolithm.Currently used method is: antenna first can realize alignment of orientation, and then adjusts pitching to point to, and realizes the entirely on the center of two antennas.
Need many kinds of parameters and data in center support system, as communication site's aerial position data (longitude and latitude), antenna towards orientation angles data, antenna reference horizontal level etc.The method of getting parms is: 1) adopt GPS (or military map or dipper system) to indicate the particular geographic location (also comprising elevation information) of two antennas; 2) adopt magnetic compass detect and indicate antenna towards; 3) 3-axis acceleration sensor is adopted to detect antenna pitching and level angle., all inevitably there is certain error in the acquisition of these parameters, when error is to a certain degree, will carries out antenna pair just may there are some problems in these data of dependence.And in these several data, antenna towards bearing data exist error maximum.
In order to realize the centering of antenna, realize before centering communicates at two antennas, need the above-mentioned 3 class data of these two antennas must carry out exchanges data between two websites, this just needs to carry out transfer of data by other means of communication, what adopt as usual is carry out exchanges data by wireless intercom device, reentry the other side data after, by inputting these parameters in antenna pair pose adjustment controller, thus drive system is regulated on the basis of these data towards with pitching to antenna.From theory, this centering principle be can realize two antennas centering and set up communication link.But faced by a practical problem is had to, that is exactly when this sample loading mode of employing, find in actual applications, the bearing sense error of two antennas is general comparatively large, its main cause be antenna towards detection methods depend on magnetoresistive transducer, and magnetoresistive transducer is larger by the impact of external magnetic field, thus affect certain deviation, then due to the lobe of millimeter wave little, generally only have about 3 °, once antenna is comparatively large towards error, such method is adopted just to be difficult to realize the centering of antenna.Meanwhile, site location error also exists to a certain extent.Therefore the antenna pair method adopted at present is not also suitable for the use of millimeter wave antenna centering.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art, the present invention proposes one and only relies on single-point site location information, and adopt two antenna differential speed rotation modes to carry out antenna location, make between two antennas when need not exchange both sides' position data comprehensively, when need not by magnetic declination data, realize two antennas location and towards pose adjustment.
The technical solution adopted for the present invention to solve the technical problems is: a kind of millimeter wave antenna centering method, is characterized in that, comprise the following steps:
A. to the communication site adopting millimeter wave to communicate, the site definitions that position in communication process is fixing is home site, and the site definitions that position changes in real time is slave site; Wherein, the antenna of home site initially keeps perpendicular to horizontal plane; Preserve home site geographical location information in slave site, described home site geographical location information at least comprises home site longitude, home site latitude and home site height;
B., after slave site position is moved, slave site geographical location information is detected in real time; Described slave site geographical location information at least comprises slave site longitude, slave site latitude and slave site height;
C. according to the home site geographical location information of the slave site geographical location information that detects and preservation, obtain the difference in height between two websites and space length, and obtain the angle a ° between line between two websites and horizontal line according to difference in height and space length; The luffing angle regulating slave site is a °;
D. control slave site antenna at the uniform velocity to rotate in the horizontal direction, its rotary speed is that in the unit time, n turns, and its antenna keeps luffing angle to be a ° in the pitch direction; In rotary course, slave site is in transmission information state, and its transmission content comprises the geographical location information of slave site;
E. controlling center point antenna is rotate under the condition of 0 ° at luffing angle, and its direction of rotation is consistent with slave site antenna direction of rotation, and its rotary speed is for n-1 turns in the unit time; In rotary course, home site is in information re-ception state; Repeat step e until home site receives the information that slave site sends;
F. after home site receives the information of slave site transmission, obtain slave site geographical location information, and according to the orientation at anglec of rotation determination slave site antenna place towards, simultaneously according to slave site geographical location information adjustment home site antenna towards home site aerial position being fixed with luffing angle, send handshake after home site aerial position is fixing;
G. slave site continues to rotate after home site position is fixing, and revolve in cycle turnover at the next one, the handshake sent according to the home site received and the geographical location information of home site, judge the antenna of self towards, stop the rotation and antenna bearingt is adjusted to and point to home site aerial position, realize principal and subordinate's website antenna pair.
Compared with prior art, beneficial effect of the present invention is:
1. only need to know monolateral home site positional information, or under certain condition, do not need to know both sides' positional information, just can realize millimeter wave antenna centering; Need before noting be used in centering to adopt other supplementary meanss to carry out communicating to exchange both sides' site location information, increase confidential nature and the maneuvering characteristics of the communication of army;
2. antenna pair mode applicability is stronger, and range of application is more extensive, is applicable to army to mobility, flexibility and communication reliability requirement.
3. reduce or eliminate positional information error (particularly orientation angles and the attitude information error) impact on millimeter wave communication antenna centering, improve centering efficiency and accuracy;
4. improve the millimeter wave antenna centering efficiency in the wild and under complex environment and accuracy;
5. analysis of causes when providing solution millimeter wave antenna centering unsuccessful and decision support means, choose communication position during practical application and optimization provides judge and decision-making.
Accompanying drawing explanation
Fig. 1 is the control flow schematic diagram from main centering;
Fig. 2 is the control flow schematic diagram of principal and subordinate's centering.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is described in detail
1) antenna pitching angle is on the impact of antenna pair
By the transmission range setting 20KM of current millimeter wave, it transmits field angle 3 °, and it is when transmitting straight line 2 positions of 20KM, and millimeter wave arrives the other side, and its quorum sensing inhibitor area diameter can reach 1KM.
That is, if two websites are at a distance of 20KM, as long as the difference in height of two website is no more than 1000m (consider some decay and the change of signals transmission, this scope should be smaller).The information then sent by side's antenna just can receive by the opposing party's antenna, by antenna selection mode, always can determine the cardinal points of another antenna, then by fine setting, finally can realize centering.
2) Antenna position error is on the impact of antenna pair
As can be seen from the signal avenues of communication of millimeter wave also, when there is certain error in the position coordinates of Liang Ge communication site, by current gps system, its positioning precision is generally in 10 meters, the current positioning precision of the Big Dipper is generally in 20 meters, by such error condition, when two antennas carry out centering because error position there is error, the overlay area after the transmitting of its signal will be far longer than the scope of this position error, in other words, the position position error of two antennas, for whole Signal reception, antenna pair, can not produce large impact.
3) antenna bearingt angle is on the impact of antenna pair
Antenna is affect antenna pair very important factor towards (orientation angles), when adopting magnetic compass to detect antenna bearingt angle, and the impact on centering when orientation angles exists error.
When the magnetic north angle of magnetic compass exists deviation, and when deviation is greater than certain limit, just there will be the situation that two antennas are difficult to centering.
And millimeter wave antenna centering, the just necessary condition of millimetre-wave attenuator, ensure the reliable foundation of millimetre-wave attenuator, millimeter wave antenna whether centering, whether antenna communication link has barrier block, and weather is as the impact etc. of heavy rain, millimeter-wave signal all may be caused not to be sent to the other side, once the other side correctly can not receive the communication information, antenna pair is just difficult to carry out.That is, once when occurring all can not completing millimeter wave antenna centering by normal running, be because the data that centering adopts have problems by its reason of very difficult judgement, or because signal transmission environment existing problems etc.
By analysis above, for avoiding, because orientation is excessive and cause antenna pair not set up towards error, adopting the method cancelling compass.
Certainly, under these circumstances, the distance between 2, also determines the effective depth difference range size between 2.Only within the scope of this, the method just can realize two websites each other all without antenna automatic centering during any the other side's positional information.
Because the communications distance of millimeter wave is generally at about 20KM, signal lobe is generally at 1 ~ 3 °.Ground two websites, are defined as A and B point here, as follows, realize A, the antenna pair that B is 2, theoretically, if know its position coordinates each other, difference in height, antenna towards, just can carry out two antenna pair by adjusting antenna attitude each other.
For achieving this end, just need website A and website B must obtain the position coordinate data of the other side's website, antenna direction data and antenna horizontal reference data.And carry out exchanges data, with know both antennae position and towards.
(1) adjustment of slave site antenna pitching angle and rotation;
According to known home site position coordinate data,
From said centering principle and process above, between two websites, to centering be realized, for slave site, most critical and importantly will to obtain the relative altitude of principal and subordinate's site location poor.The accuracy of these data determines the accuracy of this pattern centering.And the altitude information of the height of home site and slave site all can carry out detection correction by GPS or other height detection means (as atmospheric pressure).
Patent of the present invention proposes a kind of novel millimeter wave centering method, it is characterized in that: two millimeter wave antennas obtain antenna pair information by two millimeter wave antennas by the mode that certain differential at the uniform velocity rotates and realize centering.
Key step comprises:
(1) website 1 millimeter wave antenna at the uniform velocity rotates by given speed, and the luffing angle of its antenna temporarily can be decided to be level;
(2) another millimeter wave website 2 is in millimetre-wave attenuator range areas, according to the positional information (as located by GPS or Big Dipper network for location) being the millimeter wave website 1 first obtained, comprises latitude and longitude coordinates and the elevation information of website; In conjunction with the positional information of this website position, the Distance geometry difference in height of two websites can be calculated; Thus the luffing angle that the antenna calculating website 2 should adjust;
(3) based on website 2 angle of depression angle calculation value, by drive and control of electric machine, adjust this antenna elevation angle to this angle value, and start at the uniform velocity to rotate by given speed; Its rotary speed becomes certain difference with the sky line options speed of website 1; And website 2 millimeter wave antenna becomes information transmitting state, it sends the positional information (locating information obtained by GPS or dipper system) that content is website 2;
(4) antenna of website 1 and website 2 rotates by different speed, in some moment, two antennas meeting centerings, now, the center support system of website 1 is by detecting presence or absence and the power of antenna receiving signal, and according to the rotational angle position in moment at that time, just can determine its own antenna right orientation of institute and towards;
(5) website 1 stops operating, and starts to launch information;
(6) website 2 antenna continues to rotate a circle after website 1 is fixing, and in this swing circle, receive the handshaking information that website 1 sends, the presence or absence of website 1 handshake that website 2 receives according to antenna and intensity, in conjunction with antenna corner, can determine website 2 antenna towards, thus set up with website 1 between millimetre-wave attenuator link.
Claims (1)
1. a millimeter wave antenna centering method, is characterized in that, comprises the following steps:
A. to the communication site adopting millimeter wave to communicate, the site definitions that position in communication process is fixing is home site, and the site definitions that position changes in real time is slave site; Wherein, the antenna of home site initially keeps perpendicular to horizontal plane; Preserve home site geographical location information in slave site, described home site geographical location information at least comprises home site longitude, home site latitude and home site height;
B., after slave site position is moved, slave site geographical location information is detected in real time; Described slave site geographical location information at least comprises slave site longitude, slave site latitude and slave site height;
C. according to the home site geographical location information of the slave site geographical location information that detects and preservation, obtain the difference in height between two websites and space length, and obtain the angle a ° between line between two websites and horizontal line according to difference in height and space length; The luffing angle regulating slave site is a °;
D. control slave site antenna at the uniform velocity to rotate in the horizontal direction, its rotary speed is that in the unit time, n turns, and its antenna keeps luffing angle to be a ° in the pitch direction; In rotary course, slave site is in transmission information state, and its transmission content comprises the geographical location information of slave site;
E. controlling center point antenna is rotate under the condition of 0 ° at luffing angle, and its direction of rotation is consistent with slave site antenna direction of rotation, and its rotary speed is for n-1 turns in the unit time; In rotary course, home site is in information re-ception state; Repeat step e until home site receives the information that slave site sends;
F. after home site receives the information of slave site transmission, obtain slave site geographical location information, and according to the orientation at anglec of rotation determination slave site antenna place towards, simultaneously according to slave site geographical location information adjustment home site antenna towards home site aerial position being fixed with luffing angle, send handshake after home site aerial position is fixing;
G. slave site continues to rotate after home site position is fixing, and revolve in cycle turnover at the next one, the handshake sent according to the home site received and the geographical location information of home site, judge the antenna of self towards, stop the rotation and antenna bearingt is adjusted to and point to home site aerial position, realize principal and subordinate's website antenna pair.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113224530A (en) * | 2021-04-02 | 2021-08-06 | 北京航天科工世纪卫星科技有限公司 | Automatic alignment control method of automatic antenna feeder system |
CN113747454A (en) * | 2020-05-27 | 2021-12-03 | 中国联合网络通信集团有限公司 | Network optimization method, device, equipment and storage medium |
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FR2769774A1 (en) * | 1997-10-14 | 1999-04-16 | Hughes Electronics Corp | Satellite coverage maximization method |
CN102394370A (en) * | 2011-07-11 | 2012-03-28 | 北京爱科迪信息通讯技术有限公司 | Satellite antenna tracking device and tracking method thereof |
CN102610917A (en) * | 2012-01-20 | 2012-07-25 | 中国商用飞机有限责任公司 | Method for controlling antennas by high-precision data leading |
CN202929487U (en) * | 2012-08-07 | 2013-05-08 | 北京华胜天成信息技术发展有限公司 | Intelligent antenna control system |
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2014
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Patent Citations (5)
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US5587715A (en) * | 1993-03-19 | 1996-12-24 | Gps Mobile, Inc. | Method and apparatus for tracking a moving object |
FR2769774A1 (en) * | 1997-10-14 | 1999-04-16 | Hughes Electronics Corp | Satellite coverage maximization method |
CN102394370A (en) * | 2011-07-11 | 2012-03-28 | 北京爱科迪信息通讯技术有限公司 | Satellite antenna tracking device and tracking method thereof |
CN102610917A (en) * | 2012-01-20 | 2012-07-25 | 中国商用飞机有限责任公司 | Method for controlling antennas by high-precision data leading |
CN202929487U (en) * | 2012-08-07 | 2013-05-08 | 北京华胜天成信息技术发展有限公司 | Intelligent antenna control system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113747454A (en) * | 2020-05-27 | 2021-12-03 | 中国联合网络通信集团有限公司 | Network optimization method, device, equipment and storage medium |
CN113747454B (en) * | 2020-05-27 | 2024-03-26 | 中国联合网络通信集团有限公司 | Network optimization method, device, equipment and storage medium |
CN113224530A (en) * | 2021-04-02 | 2021-08-06 | 北京航天科工世纪卫星科技有限公司 | Automatic alignment control method of automatic antenna feeder system |
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Inventor after: Tang Meng Inventor before: Tang Meng Inventor before: Fang Yangli Inventor before: Gan Feng |
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