CN105607654A - Method for controlling linear displacement direction - Google Patents
Method for controlling linear displacement direction Download PDFInfo
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- CN105607654A CN105607654A CN201610006425.2A CN201610006425A CN105607654A CN 105607654 A CN105607654 A CN 105607654A CN 201610006425 A CN201610006425 A CN 201610006425A CN 105607654 A CN105607654 A CN 105607654A
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- antenna
- reference point
- auxiliary antenna
- tested
- distance
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
Abstract
The invention provides a method for controlling a linear displacement direction of an auxiliary antenna during antenna gain directional diagram measurement. The method comprises: a reference point is selected in a direction of a central normal of a measured antenna, a linear displacement direction of an auxiliary antenna is planned in a direction perpendicular to the direction of the central normal of the measured antenna by passing by the reference point, a testing point is planned in the linear displacement direction, and the auxiliary antenna moves from the reference point to the testing point linearly; distances between the auxiliary antenna and the measured antenna before and after displacement as well as a rotating angle of the auxiliary antenna during displacement are measured; and a correction angle between the actual linear displacement direction and the planned linear displacement direction of the auxiliary antenna is calculated and the displacement of the auxiliary antenna of is controlled based on the correction angle. With the method, the linear displacement direction of the auxiliary antenna can be corrected.
Description
Technical field
The present invention relates to antenna measurement technical field, particularly relate in antenna gain pattern measurementA kind of method of controlling straight-line displacement direction.
Background technology
Using auxiliary antenna straight-line displacement to measure in the test process of antenna gain directional diagram, auxiliaryAntenna need to be realized automatic displacement on the straight path of planning, to complete whole test process. AndIn practical application, due to reference point and tested antenna distance far away, be generally tens meters even up to a hundredRice, the auxiliary antenna rectilinear direction of artificial planning and the vertical pass of the centre normal direction of tested antennaSystem can not well be ensured.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of auxiliary antenna for artificial planningThe method that straight-line displacement direction is controlled, proofreaies and correct the error existing in artificial planning process, therebyEnsure the vertical relation of auxiliary antenna straight-line displacement direction and tested center of antenna normal.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of control is providedThe method of auxiliary antenna straight-line displacement direction processed, comprising: S1: tested antenna is fixed, describedIn the centre normal direction of tested antenna, choose reference point, through described reference point with described testedIn the vertical direction of the centre normal direction of antenna, plan the straight-line displacement direction of auxiliary antenna, andA test point is planned in the position that differs from described reference point in described straight-line displacement direction, measures described quiltDistance between observation line and described reference point; S2: when described auxiliary antenna is along described straight-line displacementDirection is from described reference point is moved to a described test point, after measuring described auxiliary antenna displacementAnd the distance between described tested antenna, is adjusted to the centre normal of auxiliary antenna to aim at by observationThe geometric center of line, records the rotational angle of auxiliary antenna in adjustment process; S3: according to described quiltAfter distance between observation line and described reference point, described auxiliary antenna displacement with described by observationDistance between line and described rotational angle, calculate after described auxiliary antenna displacement and described ginsengDistance between examination point; S4: according to the distance between described tested antenna and described reference point, instituteDistance and described auxiliary antenna position after stating auxiliary antenna displacement and between described tested antennaDistance after moving and between described reference point, the direction of displacement that calculates described auxiliary antenna with described inCorrection angle between straight-line displacement direction, and according to auxiliary antenna described in the control of described correction angleRevise displacement, described auxiliary antenna is come back in described straight-line displacement direction.
Preferably, the calculating formula of the distance after described auxiliary antenna displacement and between described reference pointFor:
Wherein, O represents the position of tested antenna, and B represents described reference point, and D ' represents described auxiliaryHelp day displacement of the lines anchor point afterwards, α represents described rotational angle.
Preferably, the calculating formula of described correction angle is:
Preferably, the distance between described tested antenna and described reference point is greater than described tested antennaFar field distance.
Preferably, between the described tested antenna of described measurement and described reference point, the step of distance is concreteFor: regulate total powerstation to make it aim at described tested antenna at described reference point place, by described full stationInstrument is measured the distance between described tested antenna and described reference point.
Preferably, distance after the described auxiliary antenna displacement of described measurement and between described tested antennaStep be specially: regulate total powerstation that it is aimed at after described tested antenna at described reference point place,Described total powerstation is set to automatic tracing mode and makes described total powerstation from described reference point straight lineBe moved in the process of a described test point and keep aiming at described tested antenna, by described total powerstationDistance after measuring described auxiliary antenna displacement and between described tested antenna.
Preferably, the described centre normal by auxiliary antenna is adjusted to and aims at the several of described tested antennaThe step at what center is specially: utilize total powerstation to carry out auto-alignment to tested antenna, and according to instituteState total powerstation tested antenna is carried out to self-aligning process by the centre normal of described auxiliary antennaBe adjusted to the geometric center of aiming at described tested antenna; Described record described in adjustment process auxiliary dayLine is specially with respect to the step of the rotational angle of described tested antenna: when described total powerstation is to testedAfter antenna auto-alignment, record the rotation of auxiliary antenna described in adjustment process by described total powerstationAngle.
The situation that is different from prior art, the invention has the beneficial effects as follows: by measuring auxiliary antennaCarry out relevant distance and the angle in straight-line displacement front and back, know auxiliary antenna direction of displacement off-straightThe angle of direction of displacement, the straight-line displacement direction of control auxiliary antenna, can realize measuring process certainlyMovingization.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the embodiment of the method for control straight-line displacement direction of the present invention.
Fig. 2 is an applied field that adopts the method for the control straight-line displacement direction of the embodiment of the present inventionThe instrumentation plan of scape.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical scheme in the embodiment of the present inventionBe clearly and completely described, obviously, described embodiment is only that a part of the present invention is realExecute example, instead of whole embodiment. Based on the embodiment in the present invention, ordinary skillPersonnel are not making the every other embodiment obtaining under creative work prerequisite, all belong to thisThe scope of invention protection.
Referring to Fig. 1, it is control straight-line displacement direction in antenna gain pattern measurement of the present inventionThe schematic flow sheet of embodiment of the method. The straight-line displacement direction-controlling method of the embodiment of the present invention comprisesFollowing steps:
S1: tested antenna is fixed, in the centre normal direction of tested antenna, chosen reference point,In the direction vertical with the centre normal direction of tested antenna, plan auxiliary antenna through reference pointStraight-line displacement direction, and a test is planned in the position that differs from reference point in this straight-line displacement directionPoint, measures the distance between tested antenna and reference point.
Wherein, reference point meets far-field measurement condition, and the distance of reference point and tested antenna is greater than2D2/ λ, wherein, D is the full-size of tested antenna physics bore, the work that λ is tested antennaMake wavelength. The full-size of physics bore refers to that a ball of hypothesis wraps antenna package, shouldThe diameter of ball minimum.
In the present embodiment, the step of measuring the distance between tested antenna and reference point is specially:Regulate total powerstation to make it aim at described tested antenna at described reference point place, survey by described total powerstationMeasure the distance between described tested antenna and described reference point.
S2: when auxiliary antenna is moved to from reference point a test point along above-mentioned straight-line displacement direction,Distance after measuring auxiliary antenna displacement and between tested antenna, by the centre normal of auxiliary antennaBe adjusted to the geometric center of aiming at tested antenna, record the angle of rotation of auxiliary antenna in adjustment processDegree.
Wherein, auxiliary antenna was positioned at reference point before straight-line displacement, and reference point is positioned at straight-line displacementIn direction; After auxiliary antenna displacement, due to the various factors in displacement process, make auxiliary dayLine has been offset the straight-line displacement direction of planning, has been parked in planning direction certain position in addition after displacementPoint is not the test point in the straight-line displacement direction in planning. Rotational angle be taking tested antenna asSummit, the angle between auxiliary antenna displacement terminal and displacement starting point.
In the specific implementation, before auxiliary antenna displacement, need artificial or alternate manner will assist skyLine is placed in the reference point in straight-line displacement direction.
In the present embodiment, measure the step of the distance of auxiliary antenna displacement afterwards and between tested antennaSuddenly be specially: regulate total powerstation that it is aimed at after tested antenna at reference point place, by total powerstation settingIn journey, keep aiming at tested antenna for automatic tracing mode makes in place the moving past of total powerstation, total powerstation withAuxiliary antenna synchronous shift, by after the displacement of total station survey auxiliary antenna and between tested antennaDistance.
In the present embodiment, the centre normal of auxiliary antenna is adjusted to and aims at how much of tested antennaThe step at center is specially: utilize total powerstation to carry out auto-alignment to tested antenna, and according to full stationInstrument carries out self-aligning process to tested antenna the centre normal of auxiliary antenna is adjusted to aligningThe geometric center of tested antenna; Record in adjustment process auxiliary antenna with respect to the rotation of tested antennaThe step of angle is specially: after total powerstation is to tested antenna auto-alignment, by total powerstation recordThe rotational angle of auxiliary antenna described in adjustment process.
In use, the prism for total powerstation location is placed at tested antenna place, to make total powerstation energyEnough auto-alignments.
S3: according to after the distance between tested antenna and reference point, auxiliary antenna displacement with testedDistance between antenna and rotational angle, after calculating auxiliary antenna displacement and between reference pointDistance.
Wherein, can utilize tested antenna, reference point and auxiliary antenna displacement anchor point afterwardsBuild triangle; By after the distance between tested antenna and reference point, auxiliary antenna displacement withDistance between tested antenna and rotational angle, utilize the cosine law to calculate auxiliary antenna positionDistance after moving and between reference point.
S4: according to after the distance between tested antenna and reference point, auxiliary antenna displacement with testedDistance after distance between antenna and auxiliary antenna displacement and between reference point, calculates auxiliaryCorrection angle between antenna direction of displacement and straight-line displacement direction, and according to the control of described correction angleAuxiliary antenna correction direction of displacement processed, comes back in straight-line displacement direction auxiliary antenna.
Wherein, can again utilize the cosine law, calculate the interior angle taking reference point as summitNumber, further calculates the angle value that needs correction, and the angle value of proofreading and correct is as required controlledThe straight-line displacement direction of auxiliary antenna.
In the specific implementation, according to proofread and correct angle control auxiliary antenna correction straight-line displacement direction itBefore, former auxiliary antenna road should be back to reference point.
Repeat aforementioned control procedure, can make auxiliary antenna straight-line displacement direction meet practical applicationRequirement.
By the way, auxiliary day of the control in embodiment of the present invention antenna direction plus figure measurementThe method of line straight-line displacement direction can be calculated the direction of displacement of auxiliary antenna in real time, according to calculating knotFruit can be proofreaied and correct the straight-line displacement direction of auxiliary antenna, thereby can reduce various in displacement processError, realizes measuring process automation.
Please also refer to Fig. 1 and Fig. 2, Fig. 2 is the control straight-line displacement that adopts the embodiment of the present inventionThe instrumentation plan of an application scenarios of the method for direction. In this application scenarios, tested antennaBe positioned at O, reference point is the test point D on B, the process straight-line displacement direction AC of reference point,The position of auxiliary antenna from reference point B to test point D straight-line displacement is D ', and D ' is positioned at and departs fromRectilinear direction A ' C ' on. Auxiliary antenna is to auxiliary after the distance BO of tested antenna, displacement before displacementHelp antenna can obtain by total station survey to distance OD ' and the rotational angle α of tested antenna,In △ OBD ', utilize the cosine law can obtain BD'2＝BO2+OD'2-2BOOD'cos α, therefore positionMoving rear auxiliary antenna to the calculating formula of the distance BD ' of reference point is:
△ OBD ' is utilized to the cosine law again, can obtainFurther obtain error angle and also need the angle γ=∠ OBD'-90 ° proofreading and correct.
According to the straight-line displacement direction of proofreading and correct angle γ control auxiliary antenna, make auxiliary antenna from departing fromRectilinear direction A ' C ' comes back on straight-line displacement direction AC.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention,Every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention and accompanying drawing content to do, orDirectly or indirectly be used in other relevant technical fields, be all in like manner included in patent of the present invention and protectProtect in scope.
Claims (7)
1. control a method for straight-line displacement direction, for controlling auxiliary antenna straight-line displacement orientation measurement antenna gain directional diagram, it is characterized in that, described method comprises:
S1: tested antenna is fixed, in the centre normal direction of described tested antenna, choose reference point, in the direction vertical with the centre normal direction of described tested antenna, plan the straight-line displacement direction of auxiliary antenna through described reference point, and the position that differs from described reference point in described straight-line displacement direction plans a test point, measure the distance between described tested antenna and described reference point;
S2: when described auxiliary antenna along described straight-line displacement direction from described reference point is moved to described test point, distance after measuring described auxiliary antenna displacement and between described tested antenna, and the centre normal of auxiliary antenna is adjusted to the geometric center of aiming at tested antenna, record the rotational angle of auxiliary antenna in adjustment process;
S3: according to distance and described rotational angle after the distance between described tested antenna and described reference point, described auxiliary antenna displacement and between described tested antenna, the distance after calculating described auxiliary antenna displacement and between described reference point;
S4: according to the distance after the distance after the distance between described tested antenna and described reference point, described auxiliary antenna displacement and between described tested antenna and described auxiliary antenna displacement and between described reference point, calculate the correction angle between direction of displacement and the described straight-line displacement direction of described auxiliary antenna, and according to auxiliary antenna correction direction of displacement described in the control of described correction angle, described auxiliary antenna is come back in described straight-line displacement direction.
2. the method for control straight-line displacement direction according to claim 1, is characterized in that, the calculating formula of the distance after described auxiliary antenna displacement and between described reference point is:
Wherein, O represents the position of tested antenna, and B represents described reference point, and D ' represents described auxiliary antenna displacement dwell point afterwards, and α represents described rotational angle.
3. the method for control straight-line displacement direction according to claim 2, is characterized in that, the calculating formula of described correction angle is:
4. according to the method for the control straight-line displacement direction described in claims 1 to 3 any one, it is characterized in that, the distance between described tested antenna and described reference point is greater than the far field distance of described tested antenna.
5. the method for control straight-line displacement direction according to claim 1, it is characterized in that, the step of the distance between the described tested antenna of described measurement and described reference point is specially: regulate total powerstation to make it aim at described tested antenna at described reference point place, by the distance between tested antenna described in described total station survey and described reference point.
6. the method for control straight-line displacement direction according to claim 1, it is characterized in that, the step of the distance after the described auxiliary antenna displacement of described measurement and between described tested antenna is specially: regulate total powerstation that it is aimed at after described tested antenna at described reference point place, described total powerstation is set to automatic tracing mode and makes in place move past in journey of described total powerstation keep aiming at described tested antenna, described total powerstation and described auxiliary antenna synchronous shift, by the distance after auxiliary antenna displacement described in described total station survey and between described tested antenna.
7. the method for control straight-line displacement direction according to claim 1, is characterized in that,
The described centre normal by auxiliary antenna is adjusted to the step of geometric center of aiming at described tested antenna and is specially: utilize total powerstation to carry out auto-alignment to tested antenna, and according to described total powerstation, tested antenna is carried out to self-aligning process and the centre normal of described auxiliary antenna is adjusted to the geometric center of aiming at described tested antenna;
Describedly record auxiliary antenna described in adjustment process and be specially with respect to the step of the rotational angle of described tested antenna: after described total powerstation is to tested antenna auto-alignment, record the rotational angle of auxiliary antenna described in adjustment process by described total powerstation.
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| CN201610006425.2A CN105607654A (en) | 2016-01-04 | 2016-01-04 | Method for controlling linear displacement direction |
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| CN201610006425.2A CN105607654A (en) | 2016-01-04 | 2016-01-04 | Method for controlling linear displacement direction |
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Citations (6)
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|---|---|---|---|---|
| EP1870718A1 (en) * | 2006-06-23 | 2007-12-26 | The Swatch Group Research and Development Ltd. | System for measuring the radiation diagram of a transmission antenna |
| CN103558459A (en) * | 2013-11-11 | 2014-02-05 | 电子科技大学 | External field antenna pattern testing method |
| CN104635200A (en) * | 2015-01-30 | 2015-05-20 | 长安大学 | Measuring method for calibration of north direction of phased array antenna based on gyro orientation |
| CN104730349A (en) * | 2015-04-15 | 2015-06-24 | 成都天衡电科科技有限公司 | Linear motion based antenna gain direction diagram measurement method |
| CN104777372A (en) * | 2015-04-15 | 2015-07-15 | 成都天衡电科科技有限公司 | Linear track correction method in antenna pattern measurement |
| CN104878701A (en) * | 2015-06-26 | 2015-09-02 | 东南大学 | Underneath pass existing railway bridge and culvert jacking horizontal guiding and deviation correcting system |
-
2016
- 2016-01-04 CN CN201610006425.2A patent/CN105607654A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1870718A1 (en) * | 2006-06-23 | 2007-12-26 | The Swatch Group Research and Development Ltd. | System for measuring the radiation diagram of a transmission antenna |
| CN103558459A (en) * | 2013-11-11 | 2014-02-05 | 电子科技大学 | External field antenna pattern testing method |
| CN104635200A (en) * | 2015-01-30 | 2015-05-20 | 长安大学 | Measuring method for calibration of north direction of phased array antenna based on gyro orientation |
| CN104730349A (en) * | 2015-04-15 | 2015-06-24 | 成都天衡电科科技有限公司 | Linear motion based antenna gain direction diagram measurement method |
| CN104777372A (en) * | 2015-04-15 | 2015-07-15 | 成都天衡电科科技有限公司 | Linear track correction method in antenna pattern measurement |
| CN104878701A (en) * | 2015-06-26 | 2015-09-02 | 东南大学 | Underneath pass existing railway bridge and culvert jacking horizontal guiding and deviation correcting system |
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Application publication date: 20160525 |