CN109633287A - A kind of quick calibration of amplitude and phase method of phased array merely with amplitude measurement - Google Patents
A kind of quick calibration of amplitude and phase method of phased array merely with amplitude measurement Download PDFInfo
- Publication number
- CN109633287A CN109633287A CN201811546927.XA CN201811546927A CN109633287A CN 109633287 A CN109633287 A CN 109633287A CN 201811546927 A CN201811546927 A CN 201811546927A CN 109633287 A CN109633287 A CN 109633287A
- Authority
- CN
- China
- Prior art keywords
- radiation field
- phase
- amplitude
- phased array
- phasing unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0892—Details related to signal analysis or treatment; presenting results, e.g. displays; measuring specific signal features other than field strength, e.g. polarisation, field modes, phase, envelope, maximum value
Abstract
The invention discloses a kind of quick calibration of amplitude and phase methods of phased array merely with amplitude measurement, front is grouped by this method, front synthesis field amplitude is measured under different channel phases and switch state, then it is mutually distributed using the width that amplitude measurements resolve front, to obtain unit width phase offset, array calibration is completed.In calibration, the present invention only measures the amplitude of radiation field, and required calibrator (-ter) unit amount is small, and calibration process is simple；Amplitude measurement number needed for the present invention is that (3N+1) is secondary, improves phased array antenna calibration timeliness；In channel width mutually solves, the present invention is not related to equation ambiguity problem, simplifies calculating process.
Description
Technical field
Field of the present invention is antenna measurement field, in the phased array antenna calibration test such as satellite communication and navigation
In have good applicability.
Background technique
It designing in phased array antenna with assembly, unit channel amplitude-phase consistency is relatively difficult to guarantee, especially phase equalization,
It requires the signal transmission link in each channel the electrical length such as to be necessary for, this to design processing, Denso and matching requirements excessively
It is harsh, it is extremely difficult to realize.Therefore it is necessary to carry out calibration to channel initial amplitude and phase before antenna is delivered.
Phased array antenna channel calibration of amplitude and phase solves front unit channel width by measurement means and is mutually distributed.It is existing at present
Measurement means there are two types of, one is the measurements of direct amplitude and phase, i.e., using near-field scan frame to the width in each channel of front
Degree and phase carry out independent measurement, and the equipment that this kind of mode needs is excessively complicated, and for massive phased array antenna, scanning support
Scale is excessively huge；Another kind is amplitude measurement method, i.e., carries out front far field amplitude measurement in the case where different fronts are with phase state,
It resolves each channel width using amplitude measurements to be mutually worth, this kind of mode is at present in order to meet solving condition, required amplitude measurement
Number is more, and calibration timeliness is bad, if channel phase shifters' digit is 5, then required amplitude is surveyed for N element array
Amount number just needs 25N times.In addition this method needs to eliminate ambiguity in solution procedure, makes troubles to practical.
Summary of the invention
The present invention is based on aerial array far field amplitude measurements to provide a kind of quick calibration of amplitude and phase method of phased array antenna, should
Front is grouped by method, is measured under different channel phases and switch state to front synthesis field amplitude, is then resolved
The width of front is mutually distributed out.Amplitude measurement number in far field needed for this kind of method is only (3N+1) secondary, significantly improves calibration timeliness
Property, and required calibrator (-ter) unit amount is few, and calibration process is simple.
In order to solve the above technical problems, the method applied in the present invention are as follows:
A kind of quick calibration of amplitude and phase method of phased array merely with amplitude measurement, by 1 radio frequency mouth of phased array antenna to be measured with
Frequency spectrograph 6 connects, and standard horn antenna 3 is placed in 1 far-field region of phased array antenna to be measured, guarantees phased array antenna 1 to be measured
It is communicated with the foundation of standard horn antenna 3, standard horn antenna 3 is connect with signal source 7.
S1. it is grouped.Phased array antenna 1 to be measured includes N number of antenna element, and phased array antenna 1 to be measured is divided and is combined for N kind,
Any one grouping k includes m phasing unit and n phase holding unit, wherein m+n=N.Kth kind is combined, it is whole
Battle array synthesis radiation field range value is expressed as
Pk=Ak1 2+Ak2 2+2Ak1Ak2cos(Φk1-Φk2-Δ)
Wherein Ak1Radiation field amplitude, Φ are synthesized for kth group phasing unitk1Spoke is synthesized for kth group phasing unit
Penetrate the initial phase of field, Ak2Radiation field amplitude, Φ are synthesized for kth group phase holding unitk2For the conjunction of kth group phase holding unit
At the initial phase of radiation field, Δ is the channel amount of phase shift of phasing unit；
S2. above-mentioned A is solvedk1、Ak2And Φk1-Φk2。
1. recording initial state performance number.All channels of phased array antenna 1 to be measured are opened, the phase shifter in all channels is all set
In 0 state, the level value on frequency spectrograph 6 is recorded, P is denoted as0, the synthesis radiation field of the antenna array of phased array antenna 1 to be measured at this time
Power is
P0=Ak1 2+Ak2 2+2Ak1Ak2cos(Φk1-Φk2)
Performance number when 2. the channel amount of phase shift for recording phasing unit is 90 °.90 ° are set by channel amount of phase shift Δ,
Synthesis radiation field power is at this time
Pk1=Ak1 2+Ak2 2+2Ak1Ak2sin(Φk1-Φk2)
3. performance number when recording the shutdown of phase holding unit channel power source.The power switch that phase keeps channel is turned off, i.e.,
Ak2≈ 0, synthesizing radiation field power at this time is Pk2≈Ak1 2
4. performance number then turns off the power switch in phase adjustment channel when record phasing unit channel power source shutdown,
That is Ak1≈ 0, synthesizing radiation field power at this time is Pk3≈Ak2 2
5. solving Ak1、Ak2And Φk1-Φk2.1., 2., 3. and 4. by above-mentioned steps
Recorded in numerical value and formula carry out simultaneous and obtain
Above formula can further solve relative amplitude and phase of the phasing unit relative to full battle array synthesis radiation field in kth group
Position
S3. width phase of the phasing unit synthesis radiation field relative to whole battle array global radiation field in the grouping of residue N-1 kind is solved
Value.Step S2 is repeated, the width phase of phasing unit synthesis radiation field whole battle array global radiation field relatively in remaining N-1 grouping is acquired
Value；
S4. compensation calibration width is asked mutually to be worth.The width of the relatively whole battle array resultant field of radiation field is synthesized by the N number of phasing unit acquired
Mutually value can establish following matrix form
Wherein, MN×NTo choose N level matrix number；Column vectorIt is expressed as unit
Radiation field is mutually worth relative to the width of whole battle array；Column vectorIt is expressed as having solved to obtain
Every group in phasing unit synthesis radiation field be mutually worth relative to the width of whole battle array；
Final radiation field of each element is mutually worth relative to the width of whole battle array resultant field to be expressed as
By what is solvedIt is handed down to phased array antenna 1 to be measured, calibration can be realized.
Further, it also needs to carry out following calculate in step sl.Phasing unit channel amount of phase shift is changed simultaneously,
Amount of phase shift is set as Δ, and the synthesis radiation field of phasing unit is expressed as
Wherein, Ak1For phasing unit synthesis radiation field amplitude, Φ in kth groupk1For phasing unit in kth group
Synthesize the initial phase of radiation field.
The synthesis radiation field of phase holding unit is expressed as in the kth group of phased array antenna 1 to be measured
Wherein, Ak2For phase holding unit synthesis radiation field amplitude, Φ in kth groupk2For phase holding unit in kth group
Synthesize the initial phase of radiation field.
Phasing unit synthesizes the sum of radiation field and its conjugate multiplication with phase holding unit, and whole battle array synthesis can be obtained
Radiation field power expression
Pk=(Ek1+Ek2)·(Ek1+Ek2)*=Ak1 2+Ak2 2+2Ak1Ak2cos(Φk1-Φk2-Δ)。
The invention has the advantage that compared to background technique
1, only the amplitude of radiation field is measured, required calibrator (-ter) unit amount is small, and calibration process is simple；
2, required amplitude measurement number is that (3N+1) is secondary, improves phased array antenna calibration timeliness；
3, in channel width mutually solves, it is not related to equation ambiguity problem, simplifies calculating process.
Detailed description of the invention
Fig. 1 is phased array antenna calibration schematic diagram of the present invention.
Fig. 2 is 32 yuan of phased array antenna calibration grouping schematic diagrames.
Specific embodiment
Embodiment 1
Next by taking 32 yuan of phased array receiving antennas as an example, detailed description of the present invention calibration process.
Phased array antenna calibration scene is built shown in referring to Fig.1.Phased array antenna 1 to be measured is placed on test table 2；
Standard horn antenna 3 is placed on the bracket 4 in 1 far-field region of phased array antenna to be measured, and guarantees the center etc. of two antennas
It is high；Test table 2 is adjusted by control host computer 5, so that the center of two antennas is aligned；By 1 radio frequency mouth of phased array antenna to be measured
It is connect with frequency spectrograph 6, electromagnetic horn 3 is connect with signal source 7, antenna 1 to be measured and control host computer are connected by controlling cable
5。
All channels of antenna 1 to be measured are opened by controlling host computer 5, and all channel phase shifters are placed in 0 state；Open frequency
Spectrometer 6 and signal source 7, set calibration frequency.
When all channel phase shifters are in 0 state, the level value on frequency spectrograph 6 is recorded, P is denoted as0。
S1. it is grouped, referring to front packet mode shown in Fig. 2, front is divided into 32 kinds of combinations, every group includes 15 phases
Adjustment unit and 17 phase holding units.
For the 1st group, 90 ° are set by the channel amount of phase shift Δ of phasing unit, records the level on frequency spectrograph 6
Value, is denoted as P11。
1. turning off the power switch (or RF switch) that phase keeps channel, the level value on frequency spectrograph 6 is recorded, is denoted as
P12。
2. opening the power switch (or RF switch) that phase keeps channel, the power switch in phase adjustment channel is turned off
(or RF switch) records the level value on frequency spectrograph 6, is denoted as P13。
Step 8, the P by measuring0、P11、P12And P13, lower right corner footmark symbol P11First group first is represented, it will be under
Grouping label is replaced with K in formula,
The relative amplitude and phase that phasing unit in kth group synthesizes relative to full battle array field can further be solved by above formula
Position.
And according to K at this time can be calculated by above-mentioned formula be 1, i.e., the opposite width phase of phasing unit synthesis field in the 1st group
Value.
S2. it solves phasing unit synthesis radiation field in packets remaining to be mutually worth relative to the width of whole battle array global radiation field, weight
Multiple step S1, the opposite width that can calculate phasing unit synthesis field in other 31 groups are mutually worth.
S3. it asks compensation calibration width to be mutually worth, is mutually worth by the opposite width that counted phasing unit synthesizes field,
And according to formula
The opposite width that the relatively full battle array of each radiation field of each element can be calculated mutually is worth, wherein coefficient matrix M32×32It can be by Fig. 2 institute
Show that packet mode obtains, the first behavior [11×15 01×17], on the basis of the first row, row k is the first row cyclic shift to the right
(k-1) secondary.
Mutually being worth by the opposite width of radiation field of each element can be obtained the compensation for calibrating errors width of each unit channel and is mutually worth, to complete battle array
Face calibration.
Assuming that channel phase shifters' digit is 6, in above-mentioned steps, the required amplitude measurement number of the present invention is 3 × 32+
1=97 times, and amplitude measurement number nearly 32 × 2 needed for existing electric rotating vector calibration method6=2048 times.Therefore this hair
The bright required amplitude measurement number of calibration that greatly reduces is, it can be achieved that front is quickly calibrated.
The comparison of table 1 the method for the present invention and electric rotating vector method
| Amplitude measurement number | |
| The method of the present invention | 97 times |
| Existing electric rotating vector method | 2048 times |
Embodiment 2
S1. it is grouped, it is assumed that phased array antenna has N number of antenna element, carries out N kind different grouping to front.Any one
It is grouped k and includes m phasing unit and n phase holding unit, wherein m+n=N.It can using phased array antenna channel phases
Tune feature changes simultaneously phasing unit channel amount of phase shift, and amount of phase shift is set as Δ, and the synthesis field of phasing unit can indicate
For
Wherein Ak1Field amplitude, Φ are synthesized for kth group phasing unitk1The first of field is synthesized for kth group phasing unit
Beginning phase.Similar, the synthesis field of kth group phase holding unit is represented by
After phase adjustment is added, whole battle array synthesis field power is represented by kth group in this way
Pk=(Ek1+Ek2)·(Ek1+Ek2)*=Ak1 2+Ak2 2+2Ak1Ak2cos(Φk1-Φk2-Δ) (3)
Field amplitude value is synthesized by measuring whole battle array under different channel phases and switch state, A can be calculatedk1、Ak2And Φk1-
Φk2。
S2. above-mentioned A is solvedk1、Ak2And Φk1-Φk2,
0 ° is set by channel amount of phase shift Δ first, i.e., the initial state of whole battle array, the initial state of all groupings is all the same, synthesis
Field power are as follows:
P0=Ak1 2+Ak2 2+2Ak1Ak2cos(Φk1-Φk2) (4)
Secondly 90 ° are set by channel amount of phase shift Δ, synthesizing field power at this time is
Pk1=Ak1 2+Ak2 2+2Ak1Ak2sin(Φk1-Φk2) (5)
It is then powered off the power switch that phase keeps channel, i.e. Ak2≈ 0, synthesizing field power at this time is Pk2≈Ak1 2 (6)
Then the power switch in phase adjustment channel, i.e. A are turned offk1≈ 0, synthesizing field power at this time is Pk3≈Ak2 2 (7)
Formula (6) and formula (7) are substituted into formula (4) and formula (5), can be solved
2Ak1Ak2cos(Φk1-Φk2)=P0-Pk2-Pk3 (8)
2Ak1Ak2sin(Φk1-Φk2)=Pk1-Pk2-Pk3 (9)
Joint type (6-9) can solve
The relative amplitude and phase that phasing unit in kth group synthesizes relative to full battle array field can further be solved by above formula
Position.
S3. phasing unit in the grouping of residue N-1 kind is successively solved according to the method described above synthesizes radiation field relative to whole
The width of battle array global radiation field is mutually worth, and repeating the above steps in this way can the following equation group of simultaneous:
In formula, MN×NIt for N level matrix number, is made of 1 and 0, every a line represents a kind of packet mode, wherein in 1 expression group
Phasing unit, phase holding unit in 0 expression group；VectorMiddle element is unit
Radiation field is mutually worth relative to the width of full battle array；VectorMiddle element be solved it is every
Phasing unit is mutually worth relative to the width of full battle array in group.
S4. compensation calibration width is asked mutually to be worth, by being rationally grouped, so that matrix MN×NIt is reversible.Hadamard square can be used in the matrix
The matrix form of cyclic shift composition can also be used in formation formula.Such as 8 rank matrix M8×8, as shown in formula (13), the first row
For [1,1,1,1,1,0,0,0], on the basis of the first row, second the first row element of behavior cyclic shift 1 time to the right, the 3rd behavior
Cyclic shift 2 times to the right of first row element, successively can be obtained other row elements；For 12 rank matrix M12×12, the first behavior [1,
1,1,1,1,1,1,0,0,0,0,0], according to above-mentioned rule, circuiting sequentially displacement can be obtained matrix M12×12, as shown in formula (14).
It is mutually distributed by the width that formula (12) can solve front:
The calibration of amplitude and phase value of unit channel can be obtained by formula (15), to realize phased array antenna calibration.In calibration process
In, every kind of grouping needs under different channel phases and switch state measurement synthesis field amplitude 3 times, needs 3N measurement altogether；In addition
1 front initial state amplitude measurement is further related to, therefore required amplitude measurement of the invention is that (3N+1) is secondary.
S3, embodiment 3
A kind of quick calibration of amplitude and phase method of phased array merely with amplitude measurement, by 1 radio frequency mouth of phased array antenna to be measured with
Frequency spectrograph 6 connects, and standard horn antenna 3 is placed in 1 far-field region of phased array antenna to be measured, guarantees phased array antenna 1 to be measured
It being communicated with the foundation of standard horn antenna 3, standard horn antenna 3 is connect with signal source 7,
S1. it being grouped, phased array antenna 1 to be measured includes N number of antenna element, and phased array antenna 1 to be measured is divided and is combined for N kind,
Any one grouping k includes m phasing unit and n phase holding unit, wherein m+n=N.
Phasing unit channel amount of phase shift is changed simultaneously, amount of phase shift is set as Δ, the synthesis radiation field of phasing unit
It is expressed as
Wherein, Ak1For phasing unit synthesis radiation field amplitude, Φ in kth groupk1For phasing unit in kth group
Synthesize the initial phase of radiation field.
The synthesis radiation field of phase holding unit is expressed as in the kth group of phased array antenna 1 to be measured
Wherein, Ak2For phase holding unit synthesis radiation field amplitude, Φ in kth groupk2For phase holding unit in kth group
Synthesize the initial phase of radiation field.
Phasing unit synthesizes the sum of radiation field and its conjugate multiplication with phase holding unit, and whole battle array synthesis can be obtained
Radiation field power expression
Pk=(Ek1+Ek2)·(Ek1+Ek2)*=Ak1 2+Ak2 2+2Ak1Ak2cos(Φk1-Φk2-Δ)。
Kth kind is combined, whole battle array synthesis radiation field range value is expressed as
Pk=Ak1 2+Ak2 2+2Ak1Ak2cos(Φk1-Φk2-Δ)
Wherein Ak1Radiation field amplitude, Φ are synthesized for kth group phasing unitk1Spoke is synthesized for kth group phasing unit
Penetrate the initial phase of field, Ak2Radiation field amplitude, Φ are synthesized for kth group phase holding unitk2For the conjunction of kth group phase holding unit
At the initial phase of radiation field, Δ is the channel amount of phase shift of phasing unit；
S2. above-mentioned A is solvedk1、Ak2And Φk1-Φk2,
6. recording initial state performance number, all channels of phased array antenna 1 to be measured are opened, the phase shifter in all channels is all set
In 0 state, the level value on frequency spectrograph 6 is recorded, P is denoted as0, the synthesis radiation field of the antenna array of phased array antenna 1 to be measured at this time
Power is
P0=Ak1 2+Ak2 2+2Ak1Ak2cos(Φk1-Φk2)
Performance number when 7. the channel amount of phase shift for recording phasing unit is 90 °.90 ° are set by channel amount of phase shift Δ,
Synthesis radiation field power is at this time
Pk1=Ak1 2+Ak2 2+2Ak1Ak2sin(Φk1-Φk2)
8. performance number when recording the shutdown of phase holding unit channel power source.The power switch that phase keeps channel is turned off, i.e.,
Ak2≈ 0, synthesizing radiation field power at this time is Pk2≈Ak1 2
9. performance number then turns off the power switch in phase adjustment channel when record phasing unit channel power source shutdown,
That is Ak1≈ 0, synthesizing radiation field power at this time is Pk3≈Ak2 2
10. solving Ak1、Ak2And Φk1-Φk2.By above-mentioned steps 1., 2., 3. and 4. recorded in numerical value and formula into
Row simultaneous obtains
Above formula can further solve relative amplitude and phase of the phasing unit relative to full battle array synthesis radiation field in kth group
Position
S3. width phase of the phasing unit synthesis radiation field relative to whole battle array global radiation field in the grouping of residue N-1 kind is solved
Value repeats step S2, acquires the width phase of phasing unit synthesis radiation field whole battle array global radiation field relatively in remaining N-1 grouping
Value；
S4. it asks compensation calibration width to be mutually worth, the width of the relatively whole battle array resultant field of radiation field is synthesized by the N number of phasing unit acquired
Mutually value can establish following matrix form
Wherein, MN×NTo choose N level matrix number；Column vectorIt is expressed as unit
Radiation field is mutually worth relative to the width of whole battle array；Column vectorIt is expressed as having solved to obtain
Every group in phasing unit synthesis radiation field be mutually worth relative to the width of whole battle array；
Final radiation field of each element is mutually worth relative to the width of whole battle array resultant field to be expressed as
By what is solvedIt is handed down to phased array antenna 1 to be measured, calibration can be realized.
Claims (2)
1. a kind of quick calibration of amplitude and phase method of phased array merely with amplitude measurement, it is characterised in that: by phased array antenna 1 to be measured
Radio frequency mouth is connect with frequency spectrograph 6, and standard horn antenna 3 is placed in 1 far-field region of phased array antenna to be measured, is guaranteed to be measured phased
Array antenna 1 is communicated with the foundation of standard horn antenna 3, and standard horn antenna 3 is connect with signal source 7,
S1. it is grouped, phased array antenna 1 to be measured includes N number of antenna element, and phased array antenna 1 to be measured is divided and is combined for N kind, arbitrarily
A kind of grouping k includes m phasing unit and n phase holding unit, wherein m+n=N, for the combination of kth kind, whole battle array conjunction
It is expressed as at radiation field range value
Pk=Ak1 2+Ak2 2+2Ak1Ak2cos(Φk1-Φk2-Δ)
Wherein Ak1Radiation field amplitude, Φ are synthesized for kth group phasing unitk1Radiation field is synthesized for kth group phasing unit
Initial phase, Ak2Radiation field amplitude, Φ are synthesized for kth group phase holding unitk2Spoke is synthesized for kth group phase holding unit
The initial phase of field is penetrated, Δ is the channel amount of phase shift of phasing unit；
S2. above-mentioned A is solvedk1、Ak2And Φk1-Φk2,
1. recording initial state performance number, all channels of phased array antenna 1 to be measured are opened, the phase shifter in all channels is all placed in 0
State records the level value on frequency spectrograph 6, is denoted as P0, the synthesis radiation field power of the antenna array of phased array antenna 1 to be measured at this time
For
P0=Ak1 2+Ak2 2+2Ak1Ak2cos(Φk1-Φk2)
2. performance number when the channel amount of phase shift for recording phasing unit is 90 °, sets 90 ° for channel amount of phase shift Δ, at this time
Synthesizing radiation field power is
Pk1=Ak1 2+Ak2 2+2Ak1Ak2sin(Φk1-Φk2)
3. performance number when recording the shutdown of phase holding unit channel power source, shutdown phase keeps the power switch in channel, i.e. Ak2≈
0, synthesizing radiation field power at this time is
Pk2≈Ak1 2
4. performance number then turns off the power switch in phase adjustment channel, i.e. A when record phasing unit channel power source shutdownk1
≈ 0, synthesizing radiation field power at this time is
Pk3≈Ak2 2
5. solving Ak1、Ak2And Φk1-Φk2, by above-mentioned steps 1., 2., 3. and 4. recorded in numerical value and formula join
It is vertical to obtain
Above formula can further solve relative amplitude and phase of the phasing unit relative to full battle array synthesis radiation field in kth group
S3. it solves phasing unit synthesis radiation field in the grouping of residue N-1 kind to be mutually worth relative to the width of whole battle array global radiation field, weight
Multiple step S2, the width for acquiring phasing unit synthesis radiation field whole battle array global radiation field relatively in remaining N-1 grouping are mutually worth；
S4. it asks compensation calibration width to be mutually worth, is mutually worth by the width that the N number of phasing unit acquired synthesizes the relatively whole battle array resultant field of radiation field
Following matrix form can be established
Wherein, MN×NTo choose N level matrix number；Column vectorIt is expressed as radiation field of each element
Width relative to whole battle array is mutually worth；Column vectorIt is expressed as every group solved
Middle phasing unit synthesis radiation field is mutually worth relative to the width of whole battle array；
Final radiation field of each element is mutually worth relative to the width of whole battle array resultant field to be expressed as
By what is solvedIt is handed down to phased array antenna 1 to be measured, calibration can be realized.
2. a kind of quick calibration of amplitude and phase method of phased array merely with amplitude measurement according to claim 1, feature exist
In:
Also need to carry out in step sl it is following calculate, change simultaneously phasing unit channel amount of phase shift, amount of phase shift is set as Δ,
The synthesis radiation field of phasing unit is expressed as
Wherein, Ak1For phasing unit synthesis radiation field amplitude, Φ in kth groupk1Spoke is synthesized for phasing unit in kth group
The initial phase of field is penetrated,
The synthesis radiation field of phase holding unit is expressed as in the kth group of phased array antenna 1 to be measured
Wherein, Ak2For phase holding unit synthesis radiation field amplitude, Φ in kth groupk2Spoke is synthesized for phase holding unit in kth group
The initial phase of field is penetrated,
Phasing unit synthesizes the sum of radiation field and its conjugate multiplication with phase holding unit, and whole battle array synthesis radiation can be obtained
Field power expression
Pk=(Ek1+Ek2)·(Ek1+Ek2)*=Ak1 2+Ak2 2+2Ak1Ak2cos(Φk1-Φk2-Δ)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546927.XA CN109633287A (en) | 2018-12-18 | 2018-12-18 | A kind of quick calibration of amplitude and phase method of phased array merely with amplitude measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546927.XA CN109633287A (en) | 2018-12-18 | 2018-12-18 | A kind of quick calibration of amplitude and phase method of phased array merely with amplitude measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109633287A true CN109633287A (en) | 2019-04-16 |
Family
ID=66074880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811546927.XA Pending CN109633287A (en) | 2018-12-18 | 2018-12-18 | A kind of quick calibration of amplitude and phase method of phased array merely with amplitude measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109633287A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596145A (en) * | 2020-06-04 | 2020-08-28 | 四川九洲电器集团有限责任公司 | Phase control array emission calibration device and method |
| CN111726173A (en) * | 2020-06-29 | 2020-09-29 | 中国电子科技集团公司第五十四研究所 | Internal calibration system and method for transmitting-receiving duplex phased array antenna |
| CN113406403A (en) * | 2021-08-19 | 2021-09-17 | 上海莱天通信技术有限公司 | Phased array antenna calibration method and device based on grouping rotation vector method |
| WO2022021359A1 (en) * | 2020-07-31 | 2022-02-03 | 深圳市速腾聚创科技有限公司 | Phase calibration method and apparatus for phased array, and storage medium and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140111373A1 (en) * | 2011-10-06 | 2014-04-24 | Raytheon Company | Calibration System and Technique For A Scalable, Analog Monopulse Networks |
| CN106990394A (en) * | 2017-02-27 | 2017-07-28 | 中国电子科技集团公司第二十七研究所 | A kind of calibration of amplitude and phase method of antenna element in plane or cylinder phased-array radar |
| CN107219408A (en) * | 2017-05-10 | 2017-09-29 | 江苏明联电子科技有限公司 | The calibrating installation and calibration method of a kind of array |
| CN108155956A (en) * | 2016-12-05 | 2018-06-12 | 英飞凌科技股份有限公司 | For the equipment, system and method for RF signal path calibration |
-
2018
- 2018-12-18 CN CN201811546927.XA patent/CN109633287A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140111373A1 (en) * | 2011-10-06 | 2014-04-24 | Raytheon Company | Calibration System and Technique For A Scalable, Analog Monopulse Networks |
| CN108155956A (en) * | 2016-12-05 | 2018-06-12 | 英飞凌科技股份有限公司 | For the equipment, system and method for RF signal path calibration |
| CN106990394A (en) * | 2017-02-27 | 2017-07-28 | 中国电子科技集团公司第二十七研究所 | A kind of calibration of amplitude and phase method of antenna element in plane or cylinder phased-array radar |
| CN107219408A (en) * | 2017-05-10 | 2017-09-29 | 江苏明联电子科技有限公司 | The calibrating installation and calibration method of a kind of array |
Non-Patent Citations (5)
| Title |
|---|
| RUI LONG 等: "Fast Amplitude-Only Measurement Method for Phased Array Calibration", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 》 * |
| 刘明罡 等: "分组旋转矢量法校正大规模相控阵天线", 《电波科学学报》 * |
| 王海 等: "一种相控阵天线小面阵波束评估方法", 《天线与伺服技术》 * |
| 耿新涛: "相控阵发射系统中幅相校准方法研究", 《工程实践及应用技术》 * |
| 陈柏燊: "阵列天线设计及非线性校准技术研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596145A (en) * | 2020-06-04 | 2020-08-28 | 四川九洲电器集团有限责任公司 | Phase control array emission calibration device and method |
| CN111596145B (en) * | 2020-06-04 | 2022-04-26 | 四川九洲电器集团有限责任公司 | Phase control array emission calibration device and method |
| CN111726173A (en) * | 2020-06-29 | 2020-09-29 | 中国电子科技集团公司第五十四研究所 | Internal calibration system and method for transmitting-receiving duplex phased array antenna |
| WO2022021359A1 (en) * | 2020-07-31 | 2022-02-03 | 深圳市速腾聚创科技有限公司 | Phase calibration method and apparatus for phased array, and storage medium and system |
| CN113406403A (en) * | 2021-08-19 | 2021-09-17 | 上海莱天通信技术有限公司 | Phased array antenna calibration method and device based on grouping rotation vector method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109633287A (en) | A kind of quick calibration of amplitude and phase method of phased array merely with amplitude measurement | |
| CN102857310B (en) | The method of testing and device of a kind of active antenna system wireless index | |
| CN105075140B (en) | Method and apparatus for calibrating mutiple antennas array | |
| CN106450796B (en) | Array antenna system and antenna calibration method | |
| CN101701988B (en) | Integrated portable multichannel phase coherent signal analyzer | |
| Hampson et al. | A fast and accurate scheme for calibration of active phased-array antennas | |
| CN110346655B (en) | Device and method for measuring polarization parameters of antenna | |
| CN104316913A (en) | Multichannel receiver real-time calibration device and calibration and error compensation method | |
| CN108614247A (en) | A kind of secondary radar channel calibration method | |
| D’Amato et al. | DDS-PLL phase shifter architectures for phased arrays: Theory and techniques | |
| CN110824466A (en) | Multi-target tracking system and DBF channel calibration FPGA implementation method thereof | |
| Wang et al. | Enabling super-resolution parameter estimation for mm-wave channel sounding | |
| CN107219408A (en) | The calibrating installation and calibration method of a kind of array | |
| Pawlak et al. | An external calibration scheme for DBF antenna arrays | |
| CN115603835A (en) | Phased array radar antenna online calibration method and system | |
| CN109459735A (en) | A kind of phased array quick calibration method based on three-phase amplitude measurement | |
| CN113985345A (en) | Ultra-wideband correction amplitude-phase fusion direction finding method and system | |
| Lyu et al. | Enabling long-range large-scale channel sounding at sub-thz bands: Virtual array and radio-over-fiber concepts | |
| CN117388811A (en) | Multi-channel calibration equipment and calibration method of semi-physical injection simulation system | |
| US10819378B2 (en) | Transmitter circuit for RF communication device, RF communication device, and method of generating an antenna output signal in a transmitter circuit | |
| US20140236517A1 (en) | Method for Calibrating a Vector Network Analyzer | |
| Choi et al. | Sequential loopback built-in self-test algorithm for dual-polarization millimeter-wave phased-array transceivers | |
| Baylis et al. | In-situ assessment of array antenna currents for real-time impedance tuning | |
| US7720137B2 (en) | Characterization of a frequency response for a frequency translation device | |
| CN109103600A (en) | The system and method for phase alignment for aerial array |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190416 |