CN101561488A - Star search method - Google Patents
Star search method Download PDFInfo
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- CN101561488A CN101561488A CNA200910051921XA CN200910051921A CN101561488A CN 101561488 A CN101561488 A CN 101561488A CN A200910051921X A CNA200910051921X A CN A200910051921XA CN 200910051921 A CN200910051921 A CN 200910051921A CN 101561488 A CN101561488 A CN 101561488A
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Abstract
The invention relates to a star search method, which comprises three coarse adjustment star search proposals, a fine adjustment star search proposal and a tracking mode. The star search method has the advantages of low cost, low mounting requirement, convenient debugging, capacity of acquiring the orientation and a pitch angle value of an antenna in real time, no interference by external factors such as weather or geomagnetism and the like, and quick, accurate and stable star search.
Description
Technical field
The present invention relates to a kind of method for searching star, particularly a kind of method of utilizing inclinator to seek star.
Background technology
Usually adopt the mode of 3 positioning antenna attitudes of electronic compass at present, adopt special algorithm to obtain three angle numerical value of azimuth pitch roll of antenna simultaneously.But have following shortcoming: cost is higher; Volume is big; Measurement of bearing is subjected to comprising many-sided influence such as earth magnetism, hardware, weather extremely easily, and when having influence on the orientation, also can cause interference to other two numerical value, also just for this reason, so this equipment can not be directly installed on the metal antenna face, can only come indirect calculation to obtain the actual angle value by measuring antenna attitude; Installation accuracy is had relatively high expectations simultaneously.
Summary of the invention
Technical matters of the present invention is that the method for searching star that a kind of cost is low, not disturbed by external factor such as electromagnetism or weather will be provided.
In order to solve above technical matters, the invention provides a kind of method for searching star, comprise the steps:
(1) calculates the volume coordinate of equipment correspondence according to gps data and target satellite longitude and latitude;
(2) according to polarization, orientation, the pitching theoretical value of antenna, the rapid adjustment antenna arm arrives adjusts point;
(3) orientation is sought the star scope and is set at 4 degree, and pitching is sought the star scope and is set at 2 degree;
(4) implement to seek star scheme one: the star process is sought in the beginning coarse adjustment, and comparison beacon signal level, writes down maximum beacon signal value and corresponding orientation, luffing angle value thereof;
(5) do you judge that current peak signal is effective satellite-signal?
(6) if enter fine tuning and seek star process and tracing mode; If not, then enter next step;
(7) implement to seek star scheme two: it is constant that the star scope is sought in pitching, strengthens bearing search to maximum, carries out coarse adjustment again and seek star;
(8) write down maximum beacon signal value and corresponding orientation, luffing angle value thereof;
(9) do you judge that current peak signal is effective satellite-signal?
(10) if enter fine tuning and seek star process and tracing mode; If not, then enter next step;
(11) implement to seek star scheme three: former search bearing range is constant, further strengthens the pitching hunting zone, carries out coarse adjustment again and seeks star;
(12) write down maximum beacon signal value and corresponding orientation, luffing angle value thereof;
(13) do you judge that current peak signal is effective satellite-signal?
(14) if enter fine tuning and seek star process and tracing mode; If not, turn back to standby mode.
The step that star process and tracing mode are sought in described fine tuning is:
1. be the center with current antenna arm position, carry out the fine setting of orientation, the angle of pitch with the small step distance;
Does 2. comparing the beacon signal level change?
If 3., then carry out the fine setting of orientation, the angle of pitch once more for new center with this point; If the level no change turns back to former center position;
4. make Modem normally carry out the sending and receiving communication;
5. judge whether signal is lower than maximum signal level-Δ
1Threshold value?
If judge whether to have confirmed time of ns? if the ns time unconfirmed, then returned for the 5. step;
If not, then enter next step;
6. judge whether signal is lower than maximum signal level-Δ
1Threshold value?
If judge whether to have confirmed time of ns? if the ns time unconfirmed, then returned for the 5. step; If confirmed the ns time then to enter next step;
7. according to the angle of pitch value of the current antenna of inclinator reading correction.
Superior effect of the present invention is:
1) cost is low, and installation requirement is not high, and it is comparatively convenient to debug;
2) can obtain orientation, the angle of pitch value of antenna in real time, not be subjected to the interference of external factor such as weather or earth magnetism;
3) seek star fast, accurately and stable.
Description of drawings
Fig. 1 is a method flow diagram of the present invention;
Embodiment
See also shown in the accompanying drawing, the invention provides a kind of method for searching star, comprise the steps:
(1) calculates the volume coordinate of equipment correspondence according to gps data and target satellite longitude and latitude;
(2) according to polarization, orientation, the pitching theoretical value of antenna, the rapid adjustment antenna arm arrives adjusts point;
(3) orientation is sought the star scope and is set at 4 degree, and pitching is sought the star scope and is set at 2 degree;
(4) implement to seek star scheme one: the star process is sought in the beginning coarse adjustment, and comparison beacon signal level, writes down maximum beacon signal value and corresponding orientation, luffing angle value thereof;
(5) do you judge that current peak signal is effective satellite-signal?
(6) if enter fine tuning and seek star process and tracing mode; If not, then enter next step;
(7) implement to seek star scheme two: it is constant that the star scope is sought in pitching, strengthens bearing search to maximum, carries out coarse adjustment again and seek star;
(8) write down maximum beacon signal value and corresponding orientation, luffing angle value thereof;
(9) do you judge that current peak signal is effective satellite-signal?
(10) if enter fine tuning and seek star process and tracing mode; If not, then enter next step;
(11) implement to seek star scheme three: former search bearing range is constant, further strengthens the pitching hunting zone, carries out coarse adjustment again and seeks star;
(12) write down maximum beacon signal value and corresponding orientation, luffing angle value thereof;
(13) do you judge that current peak signal is effective satellite-signal?
(14) if enter fine tuning and seek star process and tracing mode; If not, turn back to standby mode.
Coarse adjustment of the present invention has three embodiments, and correspondence is used under different situations:
Star scheme one is sought in coarse adjustment: the rectangle coarse scan is the matrix center with the theoretical value, and X pitching Y is the matrix length and width with the orientation, scans.X herein, Y can be by User Defineds, and unit is degree, and acquiescence is got orientation 4 degree, pitching 2 degree.Why so value is owing on the antenna surface inclinator is installed, and can more accurately measure the current actual luffing angle of satellite, so the pitching sweep limit of rectangle coarse scan can be less relatively.In the ordinary course of things, use coarse adjustment to seek the scanning of star scheme one, can within 3 minutes, find a preliminary control coordinate of target satellite.
Star scheme two is sought in coarse adjustment: finding that coarse adjustment seeks the star scheme when sweeping the star failure, represent current exist antenna attitude skew or inclination.Its reason may be that the geology landform change that earthquake causes causes.Because there is the relation of inclinator, so generally speaking, bigger deviation can not appear in luffing angle, unique possible can only be that bigger skew has taken place in the orientation.So, star scheme two is sought in coarse adjustment, and promptly the value of expansion orientation X is to maximum automatically on the basis of scheme one, and pitching Y then value is constant, seeks satellite again with this.This coarse adjustment is sought an empirical value in the star scheme two, this empirical value is to be used for when scanning useful signal, just empirical value compares therewith, when finding more than or equal to empirical value, then think and tentatively find this value, and stop immediately scanning enter the fine tuning process, so generally do not wait by 20 minutes at 1 minute its sweep time.
Star scheme three is sought in coarse adjustment: all can't find effective signal if the star scheme is sought in above-mentioned two kinds of coarse adjustment, illustrate that then some unpredictable problems have appearred in current device, comprise the fault of equipment such as possible inclinator, beacon; Landform changes and to have exceeded scope that reality can scan etc.For guaranteeing the target satellite of seeking of maximum possible, program will be carried out the scanning that star scheme three is sought in coarse adjustment.Being about to coarse adjustment seeks star scheme one and coarse adjustment and seeks the part that star scheme two do not scan and carry out complementary scan.With coarse adjustment seek star scheme two identical be, take the empirical value pairing comparision too, in case will stop coarse adjustment at once when finding useful signal, enter the fine tuning step.Then will look the fault degree of antenna deviation situation or hardware device and have than big difference its sweep time.
The advantage that the present invention adopts three kinds of coarse adjustment to seek the star scheme is:
1. under normal circumstances, utilize coarse adjustment to seek the coarse adjustment of star scheme one, owing to be that sweep limits is little, Operation is accurate, so can reach the effect of quick location;
2. be subjected in the situation of ectocine at antenna attitude, still can seek star scheme two by coarse adjustment and look for To real space coordinate and location, solved in some calamitous zones and still to have kept normal The possibility of work;
3. when some unknowable extraneous mistake or hardware faults take place, seek star scheme three by coarse adjustment, Can guarantee to find to greatest extent target satellite and location.
The step that star process and tracing mode are sought in described fine tuning is:
1. centered by current antenna arm position, carry out the fine setting of orientation, the angle of pitch with half step distance;
Does 2. comparing the beacon signal level change?
If 3., then again carry out the fine setting of orientation, the angle of pitch as new center take this point; If level Unchanged, turn back to former center position;
4. make Modem normally carry out the sending and receiving communication;
5. judge whether signal is lower than maximum signal level-Δ1Threshold value?
If judge whether to have confirmed time of ns? if the ns time unconfirmed, then return 5. Step;
If not, then enter next step;
6. judge whether signal is lower than maximum signal level-Δ1Threshold value?
If judge whether to have confirmed time of ns? if the ns time unconfirmed, then return 5. Step; If confirmed the ns time, then enter next step;
7. according to the angle of pitch value of the current antenna of dipmeter reading correction.
When seeking by coarse adjustment after the star scheme finds a rough satellite position, needing can be by carefully Accent is sought the star scheme and is come quickly and accurately to star.
Point carries out trickle adjustment centered by the resulting space coordinates of star scheme is sought in coarse adjustment. For example With the current coordinate orientation 0.3 degree scope that moves right, discovery signals becomes greatly then records current seat Mark, and continue to move to right. Surpass a certain amount ofly when discovery signals diminishes, then show on this direction Through global coordinate more not, then return the space coordinates that the last time records. By that analogy, thin Accent is sought the star scheme and is determined the most at last the next point that all is less than or equal to up and down current coordinate Actual coordinate for target satellite.
It is as follows to adopt fine tuning to seek the advantage of star scheme:
1. speed is fast: through experimental verification, each direction only need to be searched for once, can determine The large-signal point need not too much numerous and diverse step and judgement, makes star speed is exceedingly fast;
2. precision height: because fine tuning seeks that the scan mode of star scheme adopts is that line is swept mode, with As step pitch scanning different be, fine tuning seek the star scheme at any time record in scanning arbitrarily The coordinate of point, and almost do not have error. So enough accurate as long as angle detects, scanning is smart Degree also just can guarantee equally. In fact the present invention scan the gained deviation of signal all＜0.33dB.
For the satellite-signal that time locking has found, guarantee that the user can work long hours and signal Do not change. Since satellite communication at any time may be with environment, weather, the factor such as artificial and Small deflection taking place, cause signal gradually to die down, just needs this moment and can detect and lock The orientation of large-signal, tracing mode start this effect:
1. rain declines
This kind situation is particularly evident on the KU wave band, namely when the sky cloud layer thicker or environment is abominable The time, can cause to received signal very big impact. On the surface, signal descends, Then the present invention should be automatically to its correction or again look for star. But in fact, antenna equipment only need keep Current attitude and need not any action. For such situation, need to add a judgement because of Element, i.e. attitude---lock step will constantly be judged changing of landform by the value that detects dipmeter Whether become, attitude does not become if discovery signals weakens, and then program will be considered as normal phenomenon.
2. block
Because antenna equipment is installed in the open air, and the dead ahead of antenna surface reception signal does not allow Any blocking arranged. So, answer because birds fly over and cause weakening of signal short time when occurring This manages to be avoided repeating star. For addressing this problem, added a delay counter conduct Judge the foundation of this type of situation. Namely in the stipulated time of this counter, the continuous detecting signal Change, one recovers then to be considered as normal and ignores when discovery signals.
3. earthquake
When taking place that on a large scale quality deformation is moving to be taken place such as earthquake, will incline by detection and calculating Tiltedly pitching and the roll numerical value of instrument, and in time delay continuous variation feelings of data before and after the contrast in the time Condition judges whether current earthquake is stable. The amplitude that backsight signal weakens is judged and be carried out Coarse adjustment or fine tuning work are revised. So can avoid blindly to star with to the problem of wrong star.
4. outage
Under some abnormal conditions, cause the suddenly situation of outage of equipment. Tracing mode will be remembered The status information of lower outage eve, and after restarting, still keep this state, thereby Guarantee when such situation of generation, can not take place the problem of information dropout or signal interruption.
The advantage of tracing mode is:
1. always guarantee the star signal strength signal intensity is maximum: namely ought detect the star signal is compared former maximum When signal value has small deflection, the present invention will begin trace signals automatically, to guarantee signal forever At a distance in maximum rating;
2. signal intensity is stable when adjusting: when signal appearance skew slightly, program is done the fine setting compensation During work, because stepping accuracy is high, so in this process, can not occur significantly believing Number change, can avoid the user in use the situation of jitter take place.
3. fault tolerant mechanism: for the diverse ways reply is all arranged in the multiple situation tracing mode, detect and handle, can effectively avoid blindly star and repeat the problem of star is occurred.
Claims (2)
1, a kind of method for searching star may further comprise the steps:
(1) calculates the volume coordinate of equipment correspondence according to gps data and target satellite longitude and latitude;
(2) according to polarization, orientation, the pitching theoretical value of antenna, the rapid adjustment antenna arm arrives adjusts point;
(3) orientation is sought the star scope and is set at 4 degree, and pitching is sought the star scope and is set at 2 degree;
(4) implement to seek star scheme one: the star process is sought in the beginning coarse adjustment, and comparison beacon signal level, writes down maximum beacon signal value and corresponding orientation, luffing angle value thereof;
(5) do you judge that current peak signal is effective satellite-signal?
(6) if enter fine tuning and seek star process and tracing mode; If not, then enter next step;
(7) implement to seek star scheme two: it is constant that the star scope is sought in pitching, strengthens bearing search to maximum, carries out coarse adjustment again and seek star;
(8) write down maximum beacon signal value and corresponding orientation, luffing angle value thereof;
(9) do you judge that current peak signal is effective satellite-signal?
(10) if enter fine tuning and seek star process and tracing mode; If not, then enter next step;
(11) implement to seek star scheme three: former search bearing range is constant, further strengthens the pitching hunting zone, carries out coarse adjustment again and seeks star;
(12) write down maximum beacon signal value and corresponding orientation, luffing angle value thereof;
(13) do you judge that current peak signal is effective satellite-signal?
(14) if enter fine tuning and seek star process and tracing mode; If not, turn back to standby mode.
2, by the described method for searching star of claim 1, it is characterized in that:
The step that star process and tracing mode are sought in described fine tuning is:
1. be the center with current antenna arm position, carry out the fine setting of orientation, the angle of pitch with the small step distance;
Does 2. comparing the beacon signal level change?
If 3., then carry out the fine setting of orientation, the angle of pitch once more for new center with this point; If the level no change turns back to former center position;
4. make Modem normally carry out the sending and receiving communication;
5. judge whether signal is lower than maximum signal level-Δ
1Threshold value?
If judge whether to have confirmed time of ns? if the ns time unconfirmed, then returned for the 5. step;
If not, then enter next step;
6. judge whether signal is lower than maximum signal level-Δ
1Threshold value?
If judge whether to have confirmed time of ns? if the ns time unconfirmed, then returned for the 5. step; If confirmed the ns time then to enter next step;
7. according to the angle of pitch value of the current antenna of inclinator reading correction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910051921XA CN101561488A (en) | 2009-05-25 | 2009-05-25 | Star search method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910051921XA CN101561488A (en) | 2009-05-25 | 2009-05-25 | Star search method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101561488A true CN101561488A (en) | 2009-10-21 |
Family
ID=41220371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200910051921XA Pending CN101561488A (en) | 2009-05-25 | 2009-05-25 | Star search method |
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| CN (1) | CN101561488A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916118A (en) * | 2010-07-13 | 2010-12-15 | 北京爱科迪信息通讯技术有限公司 | Method and system for seeking stars by using satellite antenna |
| CN103715506A (en) * | 2012-10-08 | 2014-04-09 | 启碁科技股份有限公司 | Antenna control method and antenna apparatus using the same |
| CN104062652A (en) * | 2014-06-10 | 2014-09-24 | 北京宇航系统工程研究所 | Method for searching space target based on space-based platform of limited view field radar |
| CN104079342A (en) * | 2014-07-18 | 2014-10-01 | 武汉信达易通科技有限公司 | Portable satellite communication terminal and method |
| WO2015096079A1 (en) * | 2013-12-26 | 2015-07-02 | 华为技术有限公司 | Antenna alignment method, device and system |
| CN104681986B (en) * | 2015-02-16 | 2017-05-17 | 南京中网卫星通信股份有限公司 | Satellite finding method of satellite antenna in inclined state |
| CN108234015A (en) * | 2017-12-29 | 2018-06-29 | 南京云清普为通信科技有限公司 | A kind of efficient satellite-finding device |
| CN108259080A (en) * | 2017-12-29 | 2018-07-06 | 南京云清普为通信科技有限公司 | A kind of efficient star searching system |
| CN108599833A (en) * | 2017-12-29 | 2018-09-28 | 南京云清普为通信科技有限公司 | A kind of efficient method for searching star |
-
2009
- 2009-05-25 CN CNA200910051921XA patent/CN101561488A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916118B (en) * | 2010-07-13 | 2012-11-21 | 北京爱科迪信息通讯技术有限公司 | Method and system for seeking stars by using satellite antenna |
| CN101916118A (en) * | 2010-07-13 | 2010-12-15 | 北京爱科迪信息通讯技术有限公司 | Method and system for seeking stars by using satellite antenna |
| CN103715506A (en) * | 2012-10-08 | 2014-04-09 | 启碁科技股份有限公司 | Antenna control method and antenna apparatus using the same |
| CN103715506B (en) * | 2012-10-08 | 2016-01-20 | 启碁科技股份有限公司 | Method of controlling antenna and use the antenna assembly of this method of controlling antenna |
| WO2015096079A1 (en) * | 2013-12-26 | 2015-07-02 | 华为技术有限公司 | Antenna alignment method, device and system |
| CN104062652A (en) * | 2014-06-10 | 2014-09-24 | 北京宇航系统工程研究所 | Method for searching space target based on space-based platform of limited view field radar |
| CN104062652B (en) * | 2014-06-10 | 2017-05-10 | 北京宇航系统工程研究所 | Method for searching space target based on space-based platform of limited view field radar |
| CN104079342A (en) * | 2014-07-18 | 2014-10-01 | 武汉信达易通科技有限公司 | Portable satellite communication terminal and method |
| CN104079342B (en) * | 2014-07-18 | 2017-10-10 | 武汉信达易通科技有限公司 | Portable satellite communications terminal and method |
| CN104681986B (en) * | 2015-02-16 | 2017-05-17 | 南京中网卫星通信股份有限公司 | Satellite finding method of satellite antenna in inclined state |
| CN108234015A (en) * | 2017-12-29 | 2018-06-29 | 南京云清普为通信科技有限公司 | A kind of efficient satellite-finding device |
| CN108259080A (en) * | 2017-12-29 | 2018-07-06 | 南京云清普为通信科技有限公司 | A kind of efficient star searching system |
| CN108599833A (en) * | 2017-12-29 | 2018-09-28 | 南京云清普为通信科技有限公司 | A kind of efficient method for searching star |
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Open date: 20091021 |