CN107121599A - The phase center scaling method and device of adaptive antenna - Google Patents
The phase center scaling method and device of adaptive antenna Download PDFInfo
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- CN107121599A CN107121599A CN201710279851.8A CN201710279851A CN107121599A CN 107121599 A CN107121599 A CN 107121599A CN 201710279851 A CN201710279851 A CN 201710279851A CN 107121599 A CN107121599 A CN 107121599A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
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Abstract
The invention provides the phase center scaling method and device of adaptive antenna, including：The phase pattern for obtaining disturbance direction is weighted according to array element；The available beams phase directional set of graphs in disturbance direction is obtained according to array antenna beam；Available beams phase directional set of graphs to disturbance direction carries out least square fitting processing, and according to the phase pattern in the disturbance direction, obtains the phase center performance set in disturbance direction；The phase center performance set in disturbance direction is averaging processing, obtain the phase center performance of adaptive antenna, so as to the available beams in the case of existing from interference, different adaptive antenna formations and Anti-interference algorithm phase center performance are estimated.
Description
Technical field
The present invention relates to antenna technical field, more particularly, to the phase center scaling method and device of adaptive antenna.
Background technology
Adaptive antenna is elimination Radio frequency interference and the effective means of multi-path jamming in satellite navigation application.But it is adaptive
Antenna can cause the change of antenna phase center while AF panel is carried out.It is adaptive in high-precision satellite navigation application
Answer antenna beam formed after Phase center variation situation need assessed.
For fixed beam antenna, the phase center of antenna is fixed, can be realized by darkroom demarcation to antenna phase
It is centrical to assess.
For adaptive antenna, wave beam changes according to the difference of interference, and phase pattern is not fixed.By estimating interference
In the presence of, phase center introduces carrier phase and the deviation of code phase, and the deviation for introducing is entered to phase measurement
Row compensation.In practical application, the directional diagram of adaptive antenna depends on the different bars such as incoming wave sense and interference signal characteristic
Part, antenna phase can not accurately be estimated, carry out effective compensation difficult.
The content of the invention
In view of this, it is an object of the invention to provide the phase center scaling method and device of adaptive antenna, solve
Adaptive antenna phase center problem, the available beams in the case of can existing from interference, to different adaptive antennas
Formation and Anti-interference algorithm phase center performance are estimated.
In a first aspect, the embodiments of the invention provide the phase center scaling method of adaptive antenna, including：
The phase pattern for obtaining disturbance direction is weighted according to array element；
The available beams phase directional set of graphs in the disturbance direction is obtained according to array antenna beam；
The available beams phase directional set of graphs to the disturbance direction carries out least square fitting processing, with
And according to the phase pattern in the disturbance direction, obtain the phase center performance collection in the disturbance direction
Close；
The phase center performance set in the disturbance direction is averaging processing, the phase of adaptive antenna is obtained
Center performance.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, institute
The available beams phase directional set of graphs that the disturbance direction is obtained according to array antenna beam is stated, including：
When forming the array antenna beam, the maximum gain in the range of the array antenna beam is obtained；
Any azimuthal point is chosen from the array antenna beam, if the corresponding gain of the azimuthal point meets default bar
Part, then using the azimuthal point as can use azimuthal point, wherein, the preparatory condition be the corresponding gain of the azimuthal point be not less than
The maximum gain and the difference of available beams width；
The all of the preparatory condition will be met described can be used as the available beams phase directional set of graphs with azimuthal point.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of second of first aspect, wherein, institute
State and least square fitting processing is carried out to the available beams phase directional set of graphs in the disturbance direction, obtain described
The phase center performance set in disturbance direction, including：
The available beams phase directional set of graphs to the disturbance direction carries out least square fitting, obtains institute
State the phase center offset PCO in disturbance direction；
Mean square deviation is asked to the phase pattern by reference point of the PCO, the phase in the disturbance direction is obtained
Position center variable quantity PCV.
With reference to second of possible embodiment of first aspect, the embodiments of the invention provide the third of first aspect
Possible embodiment, wherein, the phase center performance set by the disturbance direction is averaging processing, and obtains
The phase center performance of adaptive antenna, including：
The PCO in the disturbance direction is averaged, the PCO of the adaptive antenna is obtained；
Mean-square value is taken to the PCV in the disturbance direction, the PCV of the adaptive antenna is obtained.
With reference to the third possible embodiment of first aspect, the embodiments of the invention provide the 4th of first aspect kind
Possible embodiment, wherein, the PCO to the disturbance direction averages, and obtains the adaptive day
The PCO of line, including：
The PCO of the adaptive antenna is calculated according to following formula：
Wherein, APCO (GT) be adaptive antenna the PCO, PCOi(GT) it is the described of the disturbance direction
PCO, K are interference scene number, GTFor available beams width；
Or,
The PCV to the disturbance direction takes mean-square value, obtains the PCV of the adaptive antenna,
Including：
The PCV of the adaptive antenna is calculated according to following formula：
Wherein, APCV (GT) be the adaptive antenna the PCV, PCVi(GT) for the institute in the disturbance direction
PCV is stated, K is interference scene number, GTFor the available beams width.
Second aspect, the embodiment of the present invention also provides the phase center caliberating device of adaptive antenna, including：First obtains
Module, the phase pattern in disturbance direction is obtained for being weighted according to array element；
Second acquisition module, the available beams phase side for obtaining the disturbance direction according to array antenna beam
To set of graphs；
Least square fitting processing module, for the available beams phase directional atlas to the disturbance direction
Close and carry out least square fitting processing, and according to the phase pattern in the disturbance direction, obtain the difference
The phase center performance set of interference radiating way；
Average treatment module, for the phase center performance set in the disturbance direction to be averaging processing, is obtained
To the phase center performance of adaptive antenna.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the first of second aspect, wherein, institute
The second acquisition module is stated, including：
Maximum gain acquiring unit, in the case where forming the array antenna beam, obtaining the array antenna
Maximum gain in beam area；
Unit is chosen, for choosing any azimuthal point from the array antenna beam, if the azimuthal point is corresponding
Gain meets preparatory condition, then using the azimuthal point as can use azimuthal point, wherein, the preparatory condition be the azimuthal point pair
The gain answered is not less than the maximum gain and the difference of available beams width；
Available beams phase directional set of graphs determining unit, described side can be used for will meet all of the preparatory condition
Site is used as the available beams phase directional set of graphs.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of second of second aspect, wherein, institute
Stating least square fitting processing module includes：
The available beams phase directional set of graphs to the disturbance direction carries out least square fitting, obtains institute
State the phase center offset PCO in disturbance direction；
Mean square deviation is asked to the phase pattern by reference point of the PCO, the phase in the disturbance direction is obtained
Position center variable quantity PCV.
With reference to second of possible embodiment of second aspect, the embodiments of the invention provide the third of second aspect
Possible embodiment, wherein, the average treatment module includes：
Average treatment unit, averages for the PCO to the disturbance direction, obtains the adaptive day
The PCO of line；
Mean-square value processing unit, mean-square value is taken for the PCV to the disturbance direction, obtains described adaptive
The PCV of antenna.
With reference to the third possible embodiment of second aspect, the embodiments of the invention provide the 4th of second aspect kind
Possible embodiment, wherein, the average treatment unit includes：
The PCO of the adaptive antenna is calculated according to following formula：
Wherein, APCO (GT) be adaptive antenna the PCO, PCOi(GT) it is the described of the disturbance direction
PCO, K are interference scene number, GTFor available beams width；
Or,
The mean-square value processing unit includes：
The PCV of the adaptive antenna is calculated according to following formula：
Wherein, APCV (GT) be the adaptive antenna the PCV, PCVi(GT) for the institute in the disturbance direction
PCV is stated, K is interference scene number, GTFor the available beams width.
The embodiments of the invention provide the phase center scaling method and device of adaptive antenna, including：According to array element plus
Power obtains the phase pattern in disturbance direction；The available beams phase in disturbance direction is obtained according to array antenna beam
Direction set of graphs；Available beams phase directional set of graphs to disturbance direction carries out least square fitting processing, Yi Jigen
According to the phase pattern in the disturbance direction, the phase center performance set in disturbance direction is obtained；By difference
The phase center performance set of interference radiating way is averaging processing, and obtains the phase center performance of adaptive antenna, so as to
Available beams in the case of interference presence, to different adaptive antenna formations and Anti-interference algorithm phase center performance
It is estimated.
Other features and advantages of the present invention will be illustrated in the following description, also, partly be become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the phase center scaling method flow chart for the adaptive antenna that the embodiment of the present invention one is provided；
Step S102 flows in the phase center scaling method for the adaptive antenna that Fig. 2 provides for the embodiment of the present invention one
Figure；
Step S103 flows in the phase center scaling method for the adaptive antenna that Fig. 3 provides for the embodiment of the present invention one
Figure；
Fig. 4 is the phase center caliberating device schematic diagram for the adaptive antenna that the embodiment of the present invention two is provided.
Icon：
The acquisition modules of 10- first；The acquisition modules of 20- second；30- least square fitting processing modules；40- average treatment moulds
Block.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
For ease of understanding the present embodiment, the embodiment of the present invention is described in detail below.
Embodiment one：
Fig. 1 is the phase center scaling method flow chart for the adaptive antenna that the embodiment of the present invention one is provided.
Reference picture 1, this method comprises the following steps：
Step S101, the phase pattern for obtaining disturbance direction is weighted according to array element；
Here, the antenna radiation pattern under the conditions of disturbance is obtained, further according to antenna radiation pattern according to array antenna first
Respectively obtain the gain pattern and phase pattern in disturbance direction.
Specifically, for the array antenna of a N array elements, antenna radiation pattern under the conditions of disturbance by formula (1) and
Formula (2) is understood：
P (θ, φ)=Ps(θ,φ)wHa(θ,φ) (1)
W=[w1 wi … wN] (2)
Wherein, Ps(θ, φ) is single array element directional diagram, and w is the weighted value of array element, and w is according to different anti-interference calculations
Method, array structure and interference signal are obtained, and a (θ, φ) is the steering vector of array, and a (θ, φ) is from formula (3)：
Wherein, τi(θ, φ) is time delay of i-th of the array element relative to reference array element, depending on array structure and interference
Come to.
After antenna Wave beam forming, the gain pattern and phase in disturbance direction are respectively obtained according to antenna radiation pattern
Directional diagram, specifically shown in formula (4) and formula (5)：
G (θ, φ)=10log (| P (θ, φ) |2/|w|2) (4)
ψ (θ, φ)=∠ P (θ, φ) (5)
Wherein, G (θ, φ) is the gain diagram in disturbance direction, and ψ (θ, φ) is the phase pattern in disturbance direction,
In the case of given Anti-interference algorithm and formation, w changes as interference radiating way changes.
Step S102, the available beams phase directional atlas in the disturbance direction is obtained according to array antenna beam
Close；
Specifically, the available beams phase directional set of graphs in disturbance direction is from formula (6) and formula (7)：
ψ(GT)={ ψ1(GT,θ,φ),ψ2(GT,θ,φ),…,ψK(GT,θ,φ)} (6)
Wherein, formula (7) represents the phase pattern under i-th of interference scene in available beams, and K is interference scene
Number, for fixed beam antenna, K is 1.
Step S103, the available beams phase directional set of graphs to the disturbance direction carries out least square plan
Conjunction is handled, and according to the phase pattern in disturbance direction, obtains the phase center performance collection in the disturbance direction
Close；
The different formation phase center performances that the application can be directed under same Anti-interference algorithm are compared, can also pin
To same formation, different Anti-interference algorithms is compared；Evaluated effect is good；Efficiency high, computation complexity is low.
Step S104, the phase center performance set in the disturbance direction is averaging processing, and obtains adaptive
The phase center performance of antenna.
Further, reference picture 2, step S102 comprises the following steps：
Step S201, when forming array antenna beam, obtains the maximum gain in the range of array antenna beam；
Step S202, chooses any azimuthal point from array antenna beam, if the corresponding gain of azimuthal point meets default
Condition, then using azimuthal point as can use azimuthal point, wherein, preparatory condition be the corresponding gain of azimuthal point not less than maximum gain with
The difference of available beams width；
Step S203, regard all available azimuthal points for meeting preparatory condition as available beams phase directional set of graphs.
Here, when array antenna beam is formed, the maximum gain in the range of array antenna beam is Gmax, from array day
Any azimuthal point is chosen in line wave beam, if the corresponding gain of azimuthal point meets preparatory condition, azimuthal point is regard as GTIt can use
Azimuthal point, all GTG can be defined as with the set of azimuthal pointTAvailable beams, as available beams phase directional set of graphs.Wherein,
GTFor available beams width, GTTo the ratio between wave beam it is G before available beams and whole antennaTAvailable beams rate.
Further, reference picture 3, step S103 comprises the following steps：
Step S301, the available beams phase directional set of graphs to disturbance direction carries out least square fitting, obtains
The PCO (Phase Center Offset, phase center offset) in disturbance direction；Wherein, PCO is antenna average phase
Center and the deviation of antenna reference point.
Here, to ψi(GT, θ, φ) in (θ, φ) carry out N group uniform samplings, obtain (θi,φi) (i=0,1,2 ... N-
, and corresponding phase ψ 1)i(GT,θi,φi) (i=0,1,2 ... N-1), obtain PCO using least square fittingi(GT), specifically
It can refer to formula (8)：
Step S302, to the phase pattern P using PCO as reference pointi(GT) mean square deviation is sought, obtain disturbance direction
PCV (Phase Center Variation, Phase center variation amount).
Wherein, PCV is the antenna phase stability using PCO as reference point.
Specifically, the phase pattern P by reference point of PCOi(GT), it can refer to formula (9)：
Further, step S104 comprises the following steps：
Step S401, averages to the PCO in disturbance direction, obtains the PCO of adaptive antenna；
Step S402, mean-square value is taken to the PCV in disturbance direction, obtains the PCV of adaptive antenna.
In step S401, the PCO of adaptive antenna is calculated according to formula (10)：
Wherein, APCO (GT) be adaptive antenna PCO, PCOi(GT) be disturbance direction PCO, K is interference scene
Number, GTFor available beams width；
In step S402, the PCV of adaptive antenna is calculated according to formula (11)：
Wherein, APCV (GT) be adaptive antenna the PCV, PCVi(GT) be disturbance direction PCV, K for interference
Scene number, GTFor available beams width.
Embodiment two：
Fig. 4 is the phase center caliberating device schematic diagram for the adaptive antenna that the embodiment of the present invention two is provided.
Reference picture 4, the device includes the first acquisition module 10, the second acquisition module 20, least square fitting processing module
30 and average processing module 40.
First acquisition module 10, the phase pattern in disturbance direction is obtained for being weighted according to array element；
Second acquisition module 20, the available beams phase for obtaining the disturbance direction according to array antenna beam
Direction set of graphs；
Least square fitting processing module 30, for the available beams phase pattern to the disturbance direction
Set carries out least square fitting processing, obtains the phase center performance set in the disturbance direction；
Average treatment module 40, for the phase center performance set in the disturbance direction to be averaging processing,
Obtain the phase center performance of adaptive antenna.
Further, the second acquisition module 20 includes：
Maximum gain acquiring unit (not shown), in the case where forming the array antenna beam, obtaining described
Maximum gain in the range of array antenna beam；
Unit (not shown) is chosen, for choosing any azimuthal point from the array antenna beam, if the orientation
The corresponding gain of point meets preparatory condition, then using the azimuthal point as can use azimuthal point, wherein, the preparatory condition is described
The corresponding gain of azimuthal point is not less than the maximum gain and the difference of available beams width；
Available beams phase directional set of graphs determining unit (not shown), for all institutes by the preparatory condition is met
Available azimuthal point is stated as the available beams phase directional set of graphs.
Further, least square fitting processing module 30 includes：
The available beams phase directional set of graphs to the disturbance direction carries out least square fitting, obtains institute
State the phase center offset PCO in disturbance direction；
Mean square deviation is asked to the phase pattern by reference point of the PCO, the phase in the disturbance direction is obtained
Position center variable quantity PCV.
Further, average treatment module 40 includes：
Average treatment unit (not shown), averages for the PCO to the disturbance direction, obtains described
The PCO of adaptive antenna；
Mean-square value processing unit (not shown), takes mean-square value for the PCV to the disturbance direction, obtains institute
State the PCV of adaptive antenna.
Further, average treatment unit (not shown) includes：The institute of the adaptive antenna is calculated according to formula (10)
State PCO.
Mean-square value processing unit (not shown) includes：The PCV of adaptive antenna is calculated according to formula (11).
The embodiments of the invention provide the phase center scaling method and device of adaptive antenna, including：According to array element plus
Power obtains the phase pattern in disturbance direction；The available beams phase in disturbance direction is obtained according to array antenna beam
Direction set of graphs；Available beams phase directional set of graphs to disturbance direction carries out least square fitting processing, Yi Jigen
According to the phase pattern in the disturbance direction, the phase center performance set in disturbance direction is obtained；By difference
The phase center performance set of interference radiating way is averaging processing, and obtains the phase center performance of adaptive antenna, so as to
Available beams in the case of interference presence, to different adaptive antenna formations and Anti-interference algorithm phase center performance
It is estimated.
The embodiment of the present invention also provides a kind of electronic equipment, including memory, processor and stores on a memory and can
The computer program run on a processor, realizes the adaptive day that above-described embodiment is provided during computing device computer program
The step of phase center scaling method of line.
The embodiment of the present invention also provides the meter that is stored with a kind of computer-readable recording medium, computer-readable recording medium
Calculation machine program, performs the phase center scaling method of the adaptive antenna of above-described embodiment when computer program is run by processor
The step of.
The computer program product that the embodiment of the present invention is provided, including store the computer-readable storage of program code
Medium, the instruction that described program code includes can be used for performing the method described in previous methods embodiment, and implementing to join
See embodiment of the method, will not be repeated here.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description
With the specific work process of device, the corresponding process in preceding method embodiment is may be referred to, be will not be repeated here.
In addition, in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
Finally it should be noted that：Embodiment described above, is only the embodiment of the present invention, to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical scheme of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of phase center scaling method of adaptive antenna, it is characterised in that including：
The phase pattern for obtaining disturbance direction is weighted according to array element；
The available beams phase directional set of graphs in the disturbance direction is obtained according to array antenna beam；
The available beams phase directional set of graphs to the disturbance direction carries out least square fitting processing, Yi Jigen
According to the phase pattern in the disturbance direction, the phase center performance set in the disturbance direction is obtained；
The phase center performance set in the disturbance direction is averaging processing, the phase center of adaptive antenna is obtained
Performance.
2. the phase center scaling method of adaptive antenna according to claim 1, it is characterised in that described according to array
Antenna beam obtains the available beams phase directional set of graphs in the disturbance direction, including：
When forming the array antenna beam, the maximum gain in the range of the array antenna beam is obtained；
Any azimuthal point is chosen from the array antenna beam, if the corresponding gain of the azimuthal point meets preparatory condition,
Then using the azimuthal point as azimuthal point can be used, wherein, the preparatory condition is the corresponding gain of the azimuthal point not less than institute
State the difference of maximum gain and available beams width；
The all of the preparatory condition will be met described can be used as the available beams phase directional set of graphs with azimuthal point.
3. the phase center scaling method of adaptive antenna according to claim 1, it is characterised in that it is described to it is described not
The available beams phase directional set of graphs with interference radiating way carries out least square fitting processing, and according to the different dry
The phase pattern in direction is disturbed, the phase center performance set in the disturbance direction is obtained, including：
Least square fitting is carried out to the available beams phase directional set of graphs in the disturbance direction, obtain it is described not
With the phase center offset PCO of interference radiating way；
Mean square deviation is asked to the phase pattern by reference point of the PCO, in the phase for obtaining the disturbance direction
Heart variable quantity PCV.
4. the phase center scaling method of adaptive antenna according to claim 3, it is characterised in that described in the general not
Phase center performance set with interference radiating way is averaging processing, and obtains the phase center performance of adaptive antenna, including：
The PCO in the disturbance direction is averaged, the PCO of the adaptive antenna is obtained；
Mean-square value is taken to the PCV in the disturbance direction, the PCV of the adaptive antenna is obtained.
5. the phase center scaling method of adaptive antenna according to claim 4, it is characterised in that it is described to it is described not
The PCO with interference radiating way averages, and obtains the PCO of the adaptive antenna, including：
The PCO of the adaptive antenna is calculated according to following formula：
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<mi>P</mi>
<mi>C</mi>
<mi>O</mi>
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<msub>
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</msub>
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Wherein, APCO (GT) be adaptive antenna the PCO, PCOi(GT) be for the PCO in the disturbance direction, K
Interference scene number, GTFor available beams width；
Or,
The PCV to the disturbance direction takes mean-square value, obtains the PCV of the adaptive antenna, including：
The PCV of the adaptive antenna is calculated according to following formula：
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Wherein, APCV (GT) be the adaptive antenna the PCV, PCVi(GT) it is the described of the disturbance direction
PCV, K are interference scene number, GTFor the available beams width.
6. a kind of phase center caliberating device of adaptive antenna, it is characterised in that including：
First acquisition module, the phase pattern in disturbance direction is obtained for being weighted according to array element；
Second acquisition module, the available beams phase pattern for obtaining the disturbance direction according to array antenna beam
Set；
Least square fitting processing module, enters for the available beams phase directional set of graphs to the disturbance direction
The processing of row least square fitting, and according to the phase pattern in the disturbance direction, obtain the disturbance
The phase center performance set in direction；
Average treatment module, for the phase center performance set in the disturbance direction to be averaging processing, is obtained certainly
Adapt to the phase center performance of antenna.
7. the phase center caliberating device of adaptive antenna according to claim 6, it is characterised in that described second obtains
Module, including：
Maximum gain acquiring unit, in the case where forming the array antenna beam, obtaining the array antenna beam
In the range of maximum gain；
Unit is chosen, for choosing any azimuthal point from the array antenna beam, if the corresponding gain of the azimuthal point
Meet preparatory condition, then using the azimuthal point as can use azimuthal point, wherein, the preparatory condition be the azimuthal point it is corresponding
Gain is not less than the maximum gain and the difference of available beams width；
Available beams phase directional set of graphs determining unit, described azimuthal point can be used for will meet all of the preparatory condition
It is used as the available beams phase directional set of graphs.
8. the phase center caliberating device of adaptive antenna according to claim 6, it is characterised in that the least square
Process of fitting treatment module includes：
Least square fitting is carried out to the available beams phase directional set of graphs in the disturbance direction, obtain it is described not
With the phase center offset PCO of interference radiating way；
Mean square deviation is asked to the phase pattern by reference point of the PCO, in the phase for obtaining the disturbance direction
Heart variable quantity PCV.
9. the phase center caliberating device of adaptive antenna according to claim 8, it is characterised in that the average treatment
Module includes：
Average treatment unit, averages for the PCO to the disturbance direction, obtains the adaptive antenna
The PCO；
Mean-square value processing unit, takes mean-square value for the PCV to the disturbance direction, obtains the adaptive antenna
The PCV.
10. the phase center caliberating device of adaptive antenna according to claim 9, it is characterised in that the average place
Reason unit includes：
The PCO of the adaptive antenna is calculated according to following formula：
<mrow>
<mi>A</mi>
<mi>P</mi>
<mi>C</mi>
<mi>O</mi>
<mrow>
<mo>(</mo>
<msub>
<mi>G</mi>
<mi>T</mi>
</msub>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<mi>K</mi>
</mfrac>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>K</mi>
</munderover>
<msub>
<mi>PCO</mi>
<mi>i</mi>
</msub>
<mrow>
<mo>(</mo>
<msub>
<mi>G</mi>
<mi>T</mi>
</msub>
<mo>)</mo>
</mrow>
</mrow>
Wherein, APCO (GT) be adaptive antenna the PCO, PCOi(GT) be for the PCO in the disturbance direction, K
Interference scene number, GTFor available beams width；
Or,
The mean-square value processing unit includes：
The PCV of the adaptive antenna is calculated according to following formula：
<mrow>
<mi>A</mi>
<mi>P</mi>
<mi>C</mi>
<mi>V</mi>
<mrow>
<mo>(</mo>
<msub>
<mi>G</mi>
<mi>T</mi>
</msub>
<mo>)</mo>
</mrow>
<mo>=</mo>
<msqrt>
<mfrac>
<mrow>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>K</mi>
</munderover>
<msubsup>
<mi>PCV</mi>
<mi>i</mi>
<mn>2</mn>
</msubsup>
<mrow>
<mo>(</mo>
<msub>
<mi>G</mi>
<mi>T</mi>
</msub>
<mo>)</mo>
</mrow>
</mrow>
<mi>K</mi>
</mfrac>
</msqrt>
</mrow>
Wherein, APCV (GT) be the adaptive antenna the PCV, PCVi(GT) it is the described of the disturbance direction
PCV, K are interference scene number, GTFor the available beams width.
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| CN111381112B (en) * | 2020-03-30 | 2022-04-01 | 中国电子科技集团公司第五十四研究所 | Phase center far-field calibration method of satellite navigation array antenna |
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