CN106767677A - A kind of measuring method for microwave guiding device orientation angle inspection - Google Patents
A kind of measuring method for microwave guiding device orientation angle inspection Download PDFInfo
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- CN106767677A CN106767677A CN201611174038.6A CN201611174038A CN106767677A CN 106767677 A CN106767677 A CN 106767677A CN 201611174038 A CN201611174038 A CN 201611174038A CN 106767677 A CN106767677 A CN 106767677A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
- G01C1/02—Theodolites
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Abstract
It is any in the coverage of microwave guiding equipment to choose a bit the invention provides a kind of measuring method for microwave guiding device orientation angle inspection, place the special angle-measuring equipment in ground and angle measurement test antenna；Choosing any one again can visually arrive the position erection theodolite that microwave guides the azimuth anteena of equipment and angle measurement to test antenna；The position of center of antenna is tested using any auxiliary magnet in theodolite acquisition azimuth anteena center, azimuth anteena plane and angle measurement；And then calculate level angle of the angle measurement test antenna relative to azimuth anteena center；The bearing data contrast that the special angle measurement receiving device of level angle and ground is provided is asked into difference to judge that microwave guides the precision of equipment, so as to judge whether the index of microwave guiding equipment is up to standard.The present invention can more precisely, easily inspection microwave guides the performance indications of equipment.
Description
Technical field
The invention belongs to measuring method technical field, it is related to microwave to guide the continental rise of equipment to check, it is more particularly to a kind of
The method of measurement angle when microwave guiding equipment continental rise is checked.
Background technology
Microwave guiding equipment is a kind of aircraft glide landing/warship guiding equipment, with reference to International Civil Aviation Organization (ICAO) issue
Microwave landing system (Microwave Landing System, MLS) technical system, azimuth anteena and elevation antenna is existed
To the spacescan wave beam of air-launched stabilization in work.Orientation, Elevation Scanning wave beam that airborne equipment is received, calculate winged
Machine relative to scanning antenna relative angle information, with reference to range-measurement system range information and device scan antenna with land/
The position relationship of warship point, by the coordinate conversion function of airborne equipment, just can obtain side of the aircraft relative to Runway Landing/warship point
Position, the elevation angle and range data manipulate aircraft as guidance information, pilot or aircraft autopilot according to these guidance informations
Landing/warship.
Microwave guides equipment only after performance indications ground test meets examination requirements, could submit navigation verification flight to
Device carries out check by flight, and then comes into operation, vector aircraft safe landing/warship.Microwave guides the continental rise verification test system of equipment
The performance indications of the angle and distance united for detecting microwave guiding equipment, wherein, angle measurement test antenna sets for receiving microwave
The spacescan wave beam that preparation is penetrated, the special angle-measuring equipment in ground is solved the spacescan wave beam that angle measurement test antenna is received
Calculate, angle measurement test antenna position is relative when obtaining test (bows with the azimuth (horizontal angle) of microwave equipment antenna and the elevation angle
The elevation angle).The angle precision that the special angle-measuring equipment in ground is resolved is ± 0.003 °.
At present to microwave guiding equipment test when, majority be calculate in advance constant bearing angle position (0 °, ±
1 °, ± 2 °, ± 3 °, ± 4 °, ± 5 °), and make a mark on the ground.Angle measurement test antenna is propped with tripod during measurement,
Make angle measurement test antenna upright projection earthward and mark to overlap, it is believed that the azimuth of now angle measurement test antenna is default
Fixed angle.But there is problems with this method：1) selection of angle position generally first determines antenna array
Center line, is then more thereon 0 ° of point according to terrain-choosing, then is projected on the ground by this point one strip antenna front of acquisition
Parallel lines, then remaining point measured on parallel lines by tape measure and obtained by calculating distance with 0 ° of point.At this
During, the acquisition of antenna array center line and parallel lines is influenceed too big by human users, finally differ surely obtain one with
The straight line that antenna array is substantially parallel.2) in order that the projection of angle measurement test antenna overlaps, it is necessary to constantly mobile with land mark
Whether tripod is adjusted, finally vertically depending on the subjective sensation of operating personnel.This process is influenceed by human users
It is very big, and it cannot be guaranteed that both are completely superposed.
As can be seen that above-mentioned method can be brought into too many error by operation influence factor.Meanwhile, have too much work in advance, one
Denier microwave guiding device antenna decorating position changes, and many needs of work do one time again again.The presence of these problems is all
It is highly detrimental to the expansion of fast accurate measurement.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention to provide a kind of azimuth for microwave guiding equipment continental rise inspection
Degree survey calculation method, it is not necessary to too many preparation work, just can provide accurately microwave and guide to continental rise testing system
The orientation angles data of equipment, can more precisely, easily check microwave to guide the performance indications of equipment.
The technical solution adopted for the present invention to solve the technical problems is comprised the following steps：
(1) it is any in the coverage of microwave guiding equipment to choose a bit, place the special angle-measuring equipment in ground and angle measurement
Test antenna；Choose again any one can visually arrive microwave guiding equipment azimuth anteena and angle measurement test antenna position rack
If theodolite；Azimuth anteena center (L is obtained using theodolite1,θ11,θ12), any auxiliary magnet in azimuth anteena plane
Position (L2,θ21,θ22) and angle measurement test antenna center (L3,θ31,θ32)；Wherein L1It is azimuth anteena center to theodolite
Oblique distance, θ11It is luffing angle of the azimuth anteena central point to theodolite, θ12It is horizontal angle of the azimuth anteena central point to theodolite
Degree, L2It is oblique distance of the auxiliary magnet to theodolite, θ21It is luffing angle of the auxiliary magnet to theodolite, θ22It is auxiliary magnet to theodolite
Level angle, L3It is that center of antenna to the oblique distance of theodolite, θ are tested in angle measurement31It is angle measurement test center of antenna bowing to theodolite
Elevation angle degree, θ32It is that center of antenna to the level angle of theodolite is tested in angle measurement；
(2) by azimuth anteena center (L1,θ11,θ12), any auxiliary magnet position (L in azimuth anteena plane2,
θ21,θ22) and angle measurement test antenna center (L3,θ31,θ32) calculate acquisition intermediate variable l1、l2、l3、l4、l5、l6：
l1=L1×COSθ11
l2=L2×COSθ21
l3=L3×COSθ31
l4=(l1 2+l3 2- 2 × l1l3COS(θ32- θ12))1/2(θ32>θ12)
l5=(l1 2+l2 2- 2 × l1l2COS(θ22- θ12))1/2(θ22>θ12)
l6=(l3 2+l2 2- 2 × l3l2COS(θ32- θ22))1/2(θ32>θ22)
Calculate level angle θ of the angle measurement test antenna relative to azimuth anteena centerOrientation=90 ° of-arcos ((l5 2+
l4 2- l6 2)/(2×l4l5))；
(3) θ that will be calculatedOrientationThe bearing data contrast provided with the special angle measurement receiving device in ground asks poor, obtains △
θOrientationTo judge that microwave guides the precision of equipment, so as to judge whether the index of microwave guiding equipment is up to standard.
The beneficial effects of the invention are as follows：Adding auxiliary magnet in the measurements makes measuring method become simple and fast, it is not necessary to do
Early stage finds the work of parallel lines and test point position, it is not required that the position of antenna is tested in constantly adjustment angle measurement, reduces big
Measure the error of human users.The present invention can arbitrarily place angle measurement test antenna, it is to avoid landform is regioselective to parallel lines
Limitation, even if the position of microwave equipment antenna installation changes, can still be tested with rapid deployment.
The data of transit survey, range accuracy can reach 0.001m, and angle precision can reach 0.001 °.This precision
Far above the angular accuracy index that microwave guides equipment ± 0.05 °, while also above the precision of 0.003 ° of angle measurement receiving device, rear
It is continuous calculate in will not introduce other errors, can to continental rise check out test set provide more accurately angle-data as benchmark.
In sum, the present invention is less is limited by landform, without a large amount of early-stage preparations, and can collection in worksite, scene
Resolve, obtain high-precision angle reference data, pinpoint the problems to be processed in time, can effectively improve unit check efficiency, contracting
The short testing time.
Brief description of the drawings
Fig. 1 is continental rise testing system schematic diagram；
Fig. 2 is azimuth determination schematic diagram；
Fig. 3 is that azimuth resolves schematic diagram；
In figure, 1- microwave equipment antennas；Antenna is tested in 2- angle measurements；The special angle measurement receiver in 3- ground；4- antenna centerlines；
5- theodolites；6- azimuth anteena central points；7- auxiliary magnets.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples, and the present invention includes but are not limited to following implementations
Example.
The present invention is comprised the following steps：
(1) (± 40 °) any chosen position places the special angle-measuring equipment in ground in the coverage of microwave guiding equipment
Antenna is tested with angle measurement (both concentrate erection).Any one microwave that can visually arrive is chosen again guides device antenna and angle measurement test days
The position of line sets up theodolite.Following position is obtained using theodolite：Azimuth anteena center (L1,θ11,θ12), azimuth anteena plane
On any auxiliary magnet (L2,θ21,θ22), angle measurement test center of antenna (L3,θ31,θ32)。
Wherein L1It is oblique distance of the azimuth anteena central point to theodolite.θ11It is pitching of the azimuth anteena central point to theodolite
Angle, θ12It is level angle of the azimuth anteena central point to theodolite.L2Be in azimuth anteena cover plane auxiliary magnet to theodolite
Oblique distance.θ21In azimuth anteena cover plane auxiliary magnet to theodolite luffing angle, θ22It is auxiliary magnet in azimuth anteena cover plane
To the level angle of theodolite.L3It is that antenna central point to the oblique distance of theodolite is tested in angle measurement.θ31It is angle measurement test center of antenna
Point arrives the luffing angle of theodolite, θ32It is that antenna central point to the level angle of theodolite is tested in angle measurement.
Auxiliary magnet in azimuth anteena plane can be scheduled on antenna be not center of antenna any position, but from antenna
Centre distance is more remote, and the error introduced during calculating is just smaller.All center of antenna refer both to the geometric center of antenna plane.
(2) level angle θ of the angle measurement test antenna relative to azimuth anteena center is resolvedOrientation(azimuth).
Use orientation center of antenna (L1,θ11,θ12), the auxiliary magnet (L in azimuth anteena plane2,θ21,θ22), angle measurement test
Center of antenna (L3,θ31,θ32) data calculation obtain θOrientation.By L1、L2、L3Decompose in same level, obtained by calculating
Intermediate variable l1、l2、l3、l4、l5、l6, then calculate θOrientation.Schematic diagram is shown in Fig. 3.Computing formula and process are as follows：
l1=L1×COSθ11
l2=L2×COSθ21
l3=L3×COSθ31
l4=(l1 2+l3 2- 2 × l1l3COS(θ32- θ12))1/2(θ32>θ12)
l5=(l1 2+l2 2- 2 × l1l2COS(θ22- θ12))1/2(θ22>θ12)
l6=(l3 2+l2 2- 2 × l3l2COS(θ32- θ22))1/2(θ32>θ22)
θOrientation=90 ° of-arcos ((l5 2+l4 2- l6 2)/(2×l4l5))
(3) θ that will be calculatedOrientationThe bearing data contrast for resolving is received with the special angle measurement receiving device in ground and asks poor.
Obtain △ θOrientationTo judge that microwave guides the precision of equipment, so as to judge whether the index of microwave guiding equipment is up to standard.
In embodiment, theodolite model Suo Jia SET EX101.Angle measurement test antenna, the special angle measurement receiving device in ground
The distance of 300m or so in front of distance microwave device antenna, -3 ° of right position is concentrated and set up.Theodolite heart line in antennas
60 ° to the right or so, the position collection apart from 200m or so sets.
The position of theodolite is set to the benchmark (0m, 0 °, 0 °) of measurement data, the side of antenna plane will be roughly perpendicularly to
To being set to 0 °.Measurement obtains azimuth anteena center (194.391m, 0.140 °, 28.189 °), the auxiliary in azimuth anteena plane
Center of antenna (155.543m, 0.533 °, 178.937 °) is tested in point (194.554m, 0.123 °, 28.454 °), angle measurement.Use step
Suddenly (2) obtain θ orientation=- 2.819 °.This data is passed the angle contrast calculated with the special angle measurement receiving device in ground to ask
Difference, obtains △ θ orientation, so as to obtain the precision of microwave equipment.
As described above, only one embodiment of the present of invention is not intended to limit the scope of the present invention.The present invention
Can also there are other various embodiments, in the case of without departing substantially from spirit of the invention and its essence, those of ordinary skill in the art
Various corresponding changes and deformation should be made according to the present invention, but these corresponding changes and deformation should all belong to this hair
Bright scope of the claims.
Claims (1)
1. a kind of measuring method for microwave guiding device orientation angle inspection, it is characterised in that comprise the steps：
(1) it is any in the coverage of microwave guiding equipment to choose a bit, place the special angle-measuring equipment in ground and angle measurement test
Antenna；The position erection for choosing any one azimuth anteena and angle measurement test antenna that can visually arrive microwave guiding equipment again is passed through
Latitude instrument；Azimuth anteena center (L is obtained using theodolite1,θ11,θ12), any auxiliary magnet position in azimuth anteena plane
(L2,θ21,θ22) and angle measurement test antenna center (L3,θ31,θ32)；Wherein L1It is azimuth anteena center to the oblique of theodolite
Away from θ11It is luffing angle of the azimuth anteena central point to theodolite, θ12It is horizontal angle of the azimuth anteena central point to theodolite
Degree, L2It is oblique distance of the auxiliary magnet to theodolite, θ21It is luffing angle of the auxiliary magnet to theodolite, θ22It is auxiliary magnet to theodolite
Level angle, L3It is that center of antenna to the oblique distance of theodolite, θ are tested in angle measurement31It is angle measurement test center of antenna bowing to theodolite
Elevation angle degree, θ32It is that center of antenna to the level angle of theodolite is tested in angle measurement；
(2) by azimuth anteena center (L1,θ11,θ12), any auxiliary magnet position (L in azimuth anteena plane2,θ21,
θ22) and angle measurement test antenna center (L3,θ31,θ32) calculate acquisition intermediate variable l1、l2、l3、l4、l5、l6：
l1=L1×COSθ11
l2=L2×COSθ21
l3=L3×COSθ31
l4=(l1 2+l3 2- 2 × l1l3COS(θ32- θ12))1/2
l5=(l1 2+l2 2- 2 × l1l2COS(θ22- θ12))1/2
l6=(l3 2+l2 2- 2 × l3l2COS(θ32- θ22))1/2
Calculate level angle θ of the angle measurement test antenna relative to azimuth anteena centerOrientation=90 ° of-arcos ((l5 2+l4 2-
l6 2)/(2×l4l5))；
(3) θ that will be calculatedOrientationThe bearing data contrast provided with the special angle measurement receiving device in ground asks poor, obtains △ θOrientation
To judge that microwave guides the precision of equipment, so as to judge whether the index of microwave guiding equipment is up to standard.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109270506A (en) * | 2018-09-29 | 2019-01-25 | 北京望远四象科技有限公司 | The test macro and test method of radar performance figure |
| CN114485545A (en) * | 2022-01-20 | 2022-05-13 | 中国人民解放军海军航空大学青岛校区 | High-precision angle data detection system of microwave guide equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270506A (en) * | 2018-09-29 | 2019-01-25 | 北京望远四象科技有限公司 | The test macro and test method of radar performance figure |
| CN114485545A (en) * | 2022-01-20 | 2022-05-13 | 中国人民解放军海军航空大学青岛校区 | High-precision angle data detection system of microwave guide equipment |
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