CN106767677B - A kind of measurement method examined for microwave guidance device orientation angle - Google Patents
A kind of measurement method examined for microwave guidance device orientation angle Download PDFInfo
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- CN106767677B CN106767677B CN201611174038.6A CN201611174038A CN106767677B CN 106767677 B CN106767677 B CN 106767677B CN 201611174038 A CN201611174038 A CN 201611174038A CN 106767677 B CN106767677 B CN 106767677B
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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
Abstract
The present invention provides a kind of measurement methods examined for microwave guidance device orientation angle, arbitrarily choose in the coverage area of microwave guidance equipment a bit, place the dedicated angle-measuring equipment in ground and antenna is tested in angle measurement；The position for choosing azimuth anteena and angle measurement test antenna that any one can visually arrive microwave guidance equipment again sets up theodolite；Use the position of any auxiliary magnet and angle measurement test center of antenna in theodolite acquisition azimuth anteena center, azimuth anteena plane；And then calculate level angle of the angle measurement test antenna relative to azimuth anteena center；The bearing data comparison that level angle and the dedicated angle measurement receiving device in ground provide is sought into difference to judge the precision of microwave guidance equipment, to judge whether the index of microwave guidance equipment is up to standard.The present invention can more precisely, easily examine the performance indicator of microwave guidance equipment.
Description
Technical field
The invention belongs to measurement method technical fields, and the continental rise for being related to microwave guidance equipment is examined, more particularly to one kind
The method of measurement angle when microwave guides equipment continental rise to examine.
Background technique
Microwave guidance equipment is a kind of aircraft glide landing/warship guidance equipment, is issued with reference to International Civil Aviation Organization (ICAO)
Microwave landing system (Microwave Landing System, MLS) technical system, so that azimuth anteena and elevation antenna is existed
To the spacescan wave beam that air-launched is stable in work.Orientation that airborne equipment receives, Elevation Scanning wave beam, calculate winged
Relative angle information of the machine relative to scanning antenna, in conjunction with range-measurement system range information and equipment scanning antenna and land/
The positional relationship of warship point can obtain aircraft relative to Runway Landing/warship point side by the coordinate conversion function of airborne equipment
Position, the elevation angle and range data manipulate aircraft according to these guidance informations as guidance information, pilot or aircraft autopilot
Landing/warship.
Microwave guides equipment only after performance indicator ground test meets examination requirements, could submit navigation verification flight
Device carries out check by flight, and then comes into operation, vector aircraft safe landing/warship.The continental rise verification test system of microwave guidance equipment
The performance indicator for the angle and distance united for detecting microwave guidance equipment, wherein angle measurement test antenna is set for receiving microwave
The spacescan wave beam that preparation is penetrated, the dedicated angle-measuring equipment in ground solve the spacescan wave beam that angle measurement test antenna receives
It calculates, angle measurement test antenna position is opposite 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 dedicated angle-measuring equipment in ground resolves is ± 0.003 °.
At present to microwave guidance 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 when measurement,
Make the upright projection and label coincidence of angle measurement test antenna to the ground, it is believed that the azimuth that antenna is tested in angle measurement at this time is default
Fixed angle.But this method has the following problems: 1) selection of angle position generally first determines antenna array
Then center line is 0 ° of point according to terrain-choosing more thereon, then put one strip antenna front of acquisition by this and project on the ground
Parallel lines, then remaining point measured on parallel lines by tape measure and obtained by calculating at a distance from 0 ° of point.At this
In the process, the acquisition of antenna array center line and parallel lines is influenced too big by personnel's operation, it is last it is different surely obtain one with
The straight line that antenna array is substantially parallel.2) in order to be overlapped the projection of angle measurement test antenna with land mark, continuous movement is needed
Tripod is adjusted, and finally whether vertically depends on the subjective sensation of operator.This process is influenced by personnel's operation
It is very big, and cannot be guaranteed that the two is completely coincident.
As can be seen that above-mentioned method can be brought into too many error by operation influence factor.Meanwhile having too much work in advance, one
Denier microwave guidance device antenna decorating position changes, and many needs of work are done one time again again.The presence of these problems is all
It is highly detrimental to the expansion of fast accurate measurement.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of azimuth examined for microwave guidance equipment continental rise
Survey calculation method is spent, too many preparation work is not needed, accurately microwave can be provided to continental rise testing system and guided
The orientation angles data of equipment can more precisely, easily examine the performance indicator of microwave guidance equipment.
The technical solution adopted by the present invention to solve the technical problems the following steps are included:
(1) it is arbitrarily chosen in the coverage area of microwave guidance equipment a bit, places the dedicated angle-measuring equipment in ground and angle measurement
Test antenna；The position rack of azimuth anteena and angle measurement test antenna that any one can visually arrive microwave guidance equipment is chosen again
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 pitch 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 pitch angle of the auxiliary magnet to theodolite, θ22It is auxiliary magnet to theodolite
Level angle, L3It is oblique distance of the angle measurement test center of antenna to theodolite, θ31It is angle measurement test center of antenna bowing to theodolite
Elevation angle degree, θ32It is level angle of the angle measurement test center of antenna to theodolite；
(2) pass through 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) by calculated θOrientationThe bearing data comparison provided with the dedicated angle measurement receiving device in ground asks poor, obtains △
θOrientationCome judge microwave guidance equipment precision, thus judge microwave guidance equipment index it is whether up to standard.
So that measurement method is become simple and fast the beneficial effects of the present invention are: auxiliary magnet is added in the measurements, does not need to do
Early period finds the work of parallel lines and test point position, does not also need the position for constantly adjusting angle measurement test antenna, reduces big
The error of amount personnel operation.The present invention can arbitrarily place angle measurement test antenna, and it is regioselective to parallel lines to avoid landform
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 achieve 0.001 °.This precision
Much higher than the angular accuracy index of microwave guidance equipment ± 0.05 °, while precision of 0.003 ° also above angle measurement receiving device, rear
It is continuous calculate in will not introduce other errors, can be provided to continental rise check out test set more accurately angle-data as benchmark.
It is limited in conclusion the present invention is less by landform, is not necessarily to a large amount of early-stage preparations, and can collection in worksite, scene
It resolves, obtains high-precision angle reference data, find the problem to be handled in time, can effectively improve unit check efficiency, contracted
The short testing time.
Detailed description of the invention
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 guides equipment；Antenna is tested in 2- angle measurement；The dedicated angle measurement receiver in the ground 3-；4- antenna centerline；
5- theodolite；6- azimuth anteena central point；7- auxiliary magnet.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, and the present invention includes but are not limited to following implementations
Example.
The present invention the following steps are included:
(1) (± 40 °) any chosen position places the dedicated angle-measuring equipment in ground in the coverage area of microwave guidance equipment
With angle measurement test antenna (the two, which is concentrated, to be set up).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: azimuth anteena center (L is obtained using theodolite1,θ11,θ12), azimuth anteena plane
On any auxiliary magnet (L2,θ21,θ22), center of antenna (L is tested in angle measurement3,θ31,θ32)。
Wherein L1It is oblique distance of the azimuth anteena central point to theodolite.θ11It is the pitching of 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.θ21Pitch angle of the auxiliary magnet to theodolite, θ in azimuth anteena cover plane22It is auxiliary magnet in azimuth anteena cover plane
To the level angle of theodolite.L3It is oblique distance of the angle measurement test antenna central point to theodolite.θ31It is angle measurement test center of antenna
Point arrives the pitch angle of theodolite, θ32It is level angle of the angle measurement test antenna central point to theodolite.
Auxiliary magnet in azimuth anteena plane can be scheduled on antenna be not center of antenna any position, but from antenna
Centre distance is remoter, and the error that when calculating introduces is with regard to 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、L3It decomposes in same level, is obtained by calculating
Intermediate variable l1、l2、l3、l4、l5、l6, then calculate θOrientation.Schematic diagram is shown in Fig. 3.Calculation 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) by calculated θOrientationThe bearing data comparison resolved is received with the dedicated angle measurement receiving device in ground asks poor.
Obtain △ θOrientationCome judge microwave guidance equipment precision, thus judge microwave guidance equipment index it is whether up to standard.
In embodiment, theodolite model Suo Jia SET EX101.Antenna, the dedicated angle measurement receiving device in ground are tested in angle measurement
The distance of 300m or so in front of distance microwave guidance equipment, -3 ° of left-right position, which is concentrated, to be set up.Theodolite heart line in antennas
60 ° to the right or so, the position collection of distance 200m or so is set.
It sets the position of theodolite to the benchmark (0m, 0 °, 0 °) of measurement data, the side of antenna plane will be roughly perpendicularly to
To being set as 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 orientation=- 2.819 ° θ.This data is passed the angle contrast calculated with the dedicated angle measurement receiving device in ground to ask
Difference obtains the orientation △ θ, 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, without deviating from the spirit and substance of the present invention, those skilled in the art
Various corresponding changes and modifications can should be made according to the present invention, but these corresponding changes and modifications all should belong to this hair
Bright scope of protection of the claims.
Claims (1)
1. a kind of measurement method examined for microwave guidance device orientation angle, it is characterised in that include the following steps:
(1) it is arbitrarily chosen in the coverage area of microwave guidance equipment a bit, places the dedicated angle-measuring equipment in ground and angle measurement test
Antenna；The position for choosing azimuth anteena and angle measurement test antenna that any one can visually arrive microwave guidance equipment again sets up warp
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 pitch 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 pitch angle of the auxiliary magnet to theodolite, θ22It is auxiliary magnet to theodolite
Level angle, L3It is oblique distance of the angle measurement test center of antenna to theodolite, θ31It is angle measurement test center of antenna bowing to theodolite
Elevation angle degree, θ32It is level angle of the angle measurement test center of antenna to theodolite；
(2) pass through 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) by calculated θOrientationThe bearing data comparison provided with the dedicated angle measurement receiving device in ground asks poor, obtains △ θOrientation
Come judge microwave guidance equipment precision, thus judge microwave guidance equipment index it is whether up to standard.
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| CN114485545B (en) * | 2022-01-20 | 2023-07-21 | 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 guiding equipment |
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| CN1007180B (en) * | 1988-03-29 | 1990-03-14 | 中国人民解放军38611部队 | Coordinateless method to locate the platform of drilling by microwave orientalion |
| CN102501978B (en) * | 2011-11-02 | 2014-03-12 | 中国科学院西安光学精密机械研究所 | Method and system for realizing all-weather aircraft landing or carrier landing by quantum entangled-state light |
| CN102854497B (en) * | 2011-11-03 | 2013-06-05 | 中国人民解放军海军航空仪器计量站 | Method for zero calibration of radar antenna |
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