CN106450796A - Array antenna system and calibration method of antenna - Google Patents
Array antenna system and calibration method of antenna Download PDFInfo
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- CN106450796A CN106450796A CN201610806365.2A CN201610806365A CN106450796A CN 106450796 A CN106450796 A CN 106450796A CN 201610806365 A CN201610806365 A CN 201610806365A CN 106450796 A CN106450796 A CN 106450796A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses an array antenna system and a calibration method of an antenna. The array antenna system comprises a host computer, a three-channel receiving machine, a radio frequency front end, a channel switching switch, a calibration source and a transmitter, wherein the three-channel receiving machine is connected with the host computer; the radio frequency front end is connected with the three-channel receiving machine through a transceiver channel; the first end of the channel switching switch is connected with the radio frequency front end; the calibration source is connected with the second end of the channel switching switch; and the transmitter is connected with the third end of the channel switching switch. When the host computer controls the channel switching switch to be connected with the calibration source in a connecting condition, a first calibration mode of the array antenna system is determined through the host computer, and at least one channel corresponding to the first calibration mode is controlled in a working condition; and after the host computer controls the calibration source to transmit a calibration signal, the host computer calculates at least one calibration value of the transceiver channel based on a receiving signal acquired by the three-channel receiving machine.
Description
Technical field
The present invention relates to electronic technology field, the more particularly to calibration steps of a kind of array antenna system and antenna.
Background technology
Phased array system is to realize, by Electronic Control, the antenna that wave beam is scanned in designated space, and which possesses wave beam and quickly sweeps
Retouch, the ability such as beam shape agile, spatial domain power combing causes application more and more extensive.But the secondary lobe of phased array antenna is electric
The important indicator such as flat, beam position, beam angle and gain can arrive the shadow of the factors such as frequency, channel error, location tolerance
Ring, these factors are finally all reflected as the feed amplitude of antenna each unit passage and the discordance of phase place.While receiving wave beam
After formation, general using and, poor, control triple channel than width (or dual pathways) and pulse processing mode carry out secondary lobe process,
Bearing measurement, receiving channel is caused angle measurement due to affecting to there is amplitude phase unbalance by factors such as manufacturing process, device errors
Trueness error.
Therefore phased array antenna-feedback system calibration steps is studied, reduces the sensor gain and phase uncertainties of each passage, while can dock
The concordance for receiving passage carries out coverage test, the index to guarantee antenna-feedback system, and the angle measurement index of function system is respectively provided with important
Theoretical and practical significance.
In prior art in order to realize needing detection to the calibration of amplitude and phase of each passage and calculate each passage amplitude and
Phase value.For the less antenna of element number, for each passage design switch and can load, row of channels of going forward side by side independently is examined
Survey.But hardware designs burdens that the increase with antenna element quantity has been each passage configuration switch and load down, therefore past
Mutually it is worth toward the width for being considered as each passage of software mode calculating.Conventional calibration steps has direct matrix, FFT method, rotation battle array
First electric field intensity, commutation method etc..
The cycle of said method test is longer and need auxiliary equipment, is required to outside source, therefore, antenna is entered
The quick method for self-calibrating of row is current problem demanding prompt solution.
Content of the invention
The embodiment of the present invention provides the calibration steps of a kind of array antenna system and antenna, for solving to lack in prior art
The weary technical problem for carrying out quick method for self-calibrating to antenna, realizing offer one kind can carry out quickly self-alignment array antenna
The technique effect of system.
On the one hand the embodiment of the present application provides a kind of array antenna system, including：
Main frame；
Receiver with Three-Channel, is connected with the main frame；
Radio-frequency front-end, is connected with the Receiver with Three-Channel by transceiver channel；
Passage switching switch, the first end of the passage switching switch is connected with the radio-frequency front-end；
Calibration source, the second end for switching switch with the passage is connected；
Transmitter, the 3rd end for switching switch with the passage is connected；
Wherein, when described in the host computer control, passage switching switch is in the connection status being connected with the calibration source,
The first calibration mode of the array antenna system is determined by the main frame, and is controlled corresponding with first calibration mode
At least one passage is in running order, and after calibration source transmitting calibration signal described in the host computer control, the main frame is based on
The reception signal that the Receiver with Three-Channel is obtained, calculates the transceiver channel corresponding with first calibration mode extremely
A few calibration value, wherein, first calibration mode be for being calibrated to the receiving channel in the transceiver channel
Receiving channel calibration mode or the transmission channel calibration mode for being calibrated to the transmission channel in the transceiver channel, institute
At least one passage is stated at least one of the radio-frequency front-end and/or Receiver with Three-Channel signalling channel.
Optionally, the antenna system also includes：
Selecting switch, is arranged between the radio-frequency front-end and the Receiver with Three-Channel, wherein, the transceiver channel
Difference passage is connected with the radio-frequency front-end by the selecting switch.
Optionally, the antenna system also includes：
Circulator, is arranged between the radio-frequency front-end and the Receiver with Three-Channel, wherein, the control of the transceiver channel
Passage processed is connected with the radio-frequency front-end by the circulator.
Optionally, the radio-frequency front-end includes：
Combiner, the first end of the combiner is connected with the Receiver with Three-Channel, forms the sum of the transceiver channel
Passage, the second end of the combiner and the three-terminal link of the selecting switch, the 4th end of the selecting switch with described
Receiver with Three-Channel connects, and when the selecting switch is placed in three end, forms the poor passage, and the of the combiner
Five ends and the six end connecting of the circulator, form the control passage；
Phaser array, is connected with the combiner, and wherein, the phaser array included at least one phase shifter；
Array antenna unit, the array antenna unit is by least one antenna element and corresponding with the control passage
Radiating element constitutes, and at least one antenna element is one-to-one relationship, the radiation with least one phase shifter
Unit is connected with the combiner.
Optionally, the 7th end of the passage switching switch is connected with the 8th end of the selecting switch, and the passage is cut
The 9th end for changing switch is connected with the tenth end of the circulator, the tenth one end and the combiner that the passage switching is switched
The 12nd end connection.
On the other hand the embodiment of the present application additionally provides a kind of calibration steps of antenna, is applied in array antenna system,
Methods described includes：
Passage switching switch in array antenna system described in host computer control in the array antenna system is in and institute
State the connection status of the calibration source connection in array antenna system；
The main frame determines the first calibration mode of the array antenna system, and wherein, first calibration mode is use
In the receiving channel calibration mode calibrated by the receiving channel in the array antenna system or for the array day
The transmission channel calibration mode calibrated by transmission channel in linear system system；
At least one passage corresponding with first calibration mode in array antenna system described in the host computer control
In running order, wherein, at least one passage is the radio-frequency front-end in the array antenna system and/or the array
At least one of Receiver with Three-Channel in antenna system signalling channel；
After calibration source transmitting calibration signal described in the host computer control, the main frame is based on and is received by the triple channel
The reception signal corresponding with the calibration signal that machine is obtained, calculates described receive corresponding with first calibration mode and leads to
Road or at least one calibration value of the transmission channel.
Optionally, when the main frame determines first calibration mode for the receiving channel calibration mode, the master
Machine controls at least one passage corresponding with first calibration mode in the array antenna system in running order, bag
Include：
The host computer control is by being connected with passage switching switch by circulator in the array antenna system
Control passage be transmission channel state；
The host computer control is arranged on the selecting switch in the array antenna system and is in and passage switching switch
The state of connection, to control poor passage as receiving channel state；
The host computer control and passage are receiving channel state；
Wherein, the array antenna system includes described and passage, the poor passage and the control passage.
Optionally, when the main frame determines first calibration mode for the transmission channel calibration mode, the master
Machine controls at least one passage corresponding with first calibration mode in the array antenna system in running order, bag
Include：
The transmitter channels that the host computer control is connected with passage switching switch are transmission channel state；
The host computer control is arranged on the selecting switch in the array antenna system and is in and passage switching switch
The state of connection, to control poor passage as receiving channel state；
The host computer control control passage is receiving channel state；
Wherein, the array antenna system includes the transmitter channels, the poor passage and the control passage.
Optionally, described after calibration source transmitting calibration signal described in the host computer control, the main frame is based on by institute
The reception signal corresponding with the calibration signal of Receiver with Three-Channel acquisition is stated, is calculated corresponding with first calibration mode
The receiving channel or the transmission channel at least one calibration value, including：
The main frame is obtained presets phase shift matrix；
The main frame is based on the default phase shift adjustment of matrix and the array antenna unit one-to-one phase shifter
Phase shift value；
The main frame is respectively to the Receiver with Three-Channel and channel reception the first signal and to the triple channel
The secondary signal of the poor channel reception of receiver is sampled, and obtains the first sampled signal and the second sampled signal；
The main frame calculates at least one calibration based on first sampled signal and second sampled signal
Value.
Optionally, described after calibration source transmitting calibration signal described in the host computer control, the main frame is based on by institute
The reception signal corresponding with the calibration signal of Receiver with Three-Channel acquisition is stated, is calculated corresponding with first calibration mode
The receiving channel or the transmission channel at least one calibration value, including：
The main frame is obtained presets phase shift matrix；
The main frame is based on the default phase shift adjustment of matrix and the array antenna unit one-to-one phase shifter
Phase shift value；
The main frame the 3rd signal respectively to the poor channel reception of the Receiver with Three-Channel and to the triple channel
The 4th signal that the control passage of receiver is received is sampled, and obtains the 3rd sampled signal and the 4th sampled signal；
The main frame calculates at least one calibration based on the 3rd sampled signal and the 4th sampled signal
Value.
Optionally, the main frame is moved with the array antenna unit correspondingly based on the default phase shift adjustment of matrix
The phase shift value of phase device, including：
It is M that the main frame obtains the quantitative value of the array antenna unit in the array antenna system；
The main frame determines the first pendulous frequency for N based on quantitative value M；
Wherein, M, N are the integer more than or equal to 1, and N is 2 M power.
I is taken successively for 1 to N, the main frame adjusts the shifting according to the matrix value of the i-th row in the default phase shift matrix
The phase shift value of phase device, completes the i ＆ lt phase adjustment to the phase shifter, and when i is for N, the main frame is completed to the phase shift
The n times phase adjustment of device, wherein, i is the integer more than or equal to 1 and less than or equal to N.
Optionally, the main frame is respectively to the Receiver with Three-Channel and channel reception the first signal and to described
The secondary signal of the poor channel reception of Receiver with Three-Channel is sampled, and obtains the first sampled signal and the second sampled signal, bag
Include：
I is taken successively for 1 to N, when the main frame completes the i ＆ lt phase adjustment, the main frame obtains described and logical
First sampled signal of i ＆ lt in road and second sampled signal of i ＆ lt of the poor passage, when i is for N, obtains N number of first and adopt
Sample signal and N number of second sampled signal.
Optionally, the main frame calculates described at least one based on first sampled signal and second sampled signal
Individual calibration value, including：
J is taken successively for 1 to N, the width phase of the first sampled signal of the Framework computing jth time and the second sampled signal of jth time
Difference, obtains jth time width phase difference, when j is for N, obtains N number of width phase difference, and wherein, j is more than or equal to 1 and to be less than or equal to N
Integer；
K is taken successively for 1 to M, the main frame is according to row k matrix value, N number of width difference of the default phase shift matrix
Value and the array antenna system proper phase poor, calculating with the array antenna unit in k-th antenna element pair
K-th calibration value of the k-th phase shift passage that answers, wherein, k is the integer more than or equal to 1 and less than or equal to N.
Optionally, the main frame the 3rd signal respectively to the poor channel reception of the Receiver with Three-Channel and to described
The 4th signal that the control passage of Receiver with Three-Channel is received is sampled, and obtains the 3rd sampled signal and the 4th sampled signal,
Including：
I is taken successively for 1 to N, when the main frame completes the i ＆ lt phase adjustment, the main frame obtains the difference and leads to
The 3rd sampled signal of i ＆ lt in road and the 4th sampled signal of i ＆ lt of the control passage, when i is for N, obtain the N number of 3rd
Sampled signal and N number of 4th sampled signal.
Optionally, the main frame calculates described at least one based on the 3rd sampled signal and the 4th sampled signal
Individual calibration value, including：
J is taken successively for 1 to N, the width phase of the 3rd sampled signal of the Framework computing jth time and the 4th sampled signal of jth time
Difference, obtains jth time width phase difference, when j is for N, obtains N number of width phase difference, and wherein, j is more than or equal to 1 and to be less than or equal to N
Integer；
K is taken successively for 1 to M, the main frame is according to row k matrix value, N number of width difference of the default phase shift matrix
Value and the array antenna system proper phase poor, calculating with the array antenna unit in k-th antenna element pair
K-th calibration value of the k-th phase shift passage that answers, wherein, k is the integer more than or equal to 1 and less than or equal to N.
Said one or multiple technical schemes in the embodiment of the present application, at least has following one or more technology effect
Really：
First, due to the technical scheme in the embodiment of the present application, using main frame；Receiver with Three-Channel, is connected with the main frame；
Radio-frequency front-end, is connected with the Receiver with Three-Channel by transceiver channel；Passage switching switch, the of passage switching switch
One end is connected with the radio-frequency front-end；Calibration source, the second end for switching switch with the passage is connected；Transmitter is logical with described
Road switches the connected technological means in the 3rd end for switching, by designing internal calibration source in antenna array system, so that antenna
In calibration without the need for external accessory；And switching switch by control passage makes antenna system after align mode, calibrates
The calibration signal that source sends is after each transceiver channel, and in sending to main frame, by computing, main frame determines that each transmitting-receiving is logical
The calibration value in road, so as to substantially reduce the time of detection calibration cost, lacks to day so as to efficiently solve in prior art
Line carries out the technical problem of quick method for self-calibrating, it is achieved that providing one kind can carry out quickly self-alignment array antenna system
Technique effect.
2nd, due to the technical scheme in the embodiment of the present application, using main frame；Receiver with Three-Channel, is connected with the main frame；
Radio-frequency front-end, is connected with the Receiver with Three-Channel by transceiver channel；Passage switching switch, the of passage switching switch
One end is connected with the radio-frequency front-end；Calibration source, the second end for switching switch with the passage is connected；Transmitter is logical with described
Road switches the connected technological means in the 3rd end for switching, and so, design passage switching switch, is led to by controlling in an antenna array
Road switching switch, makes antenna system be operated in signal transmitting and receiving state and signal calibration state, so as to avoid to each passage design
Individually switch and load, it is achieved that simplify the technique effect of the hardware designs of antenna system.
3rd, due to the technical scheme in the embodiment of the present application, using main frame；Receiver with Three-Channel, is connected with the main frame；
Radio-frequency front-end, is connected with the Receiver with Three-Channel by transceiver channel；Passage switching switch, the of passage switching switch
One end is connected with the radio-frequency front-end；Calibration source, the second end for switching switch with the passage is connected；Transmitter is logical with described
Road switches the connected technological means in the 3rd end for switching, so, when antenna system is in align mode, the school that calibration source sends
Calibration signal is after each transceiver channel, and in sending to main frame, the calibration value of each transceiver channel determined by main frame by computing,
Calibrate for system amplitude-phase consistency so as to by antenna calibration problem dynamic design, convert antenna calibration, reduce multiple error pair
The impact of system calibration precision.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, embodiment will be described below
Needed for accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment.
Fig. 1 is a kind of structured flowchart of the array antenna system for providing in the embodiment of the present application one；
Fig. 2 is a kind of flow chart of the calibration steps of antenna of the offer of the embodiment of the present application two；
Fig. 3 be in the embodiment of the present application two when calibration mode is for receiving channel calibration mode the implementing of step S103
Mode flow chart；
Fig. 4 be in the embodiment of the present application two when calibration mode is for receiving channel calibration mode the implementing of step S104
Mode flow chart；
Fig. 5 is the flow chart of the specific implementation of step S302 in the embodiment of the present application two；
Fig. 6 is the flow chart of the specific implementation of step S304 in the embodiment of the present application two；
Fig. 7 be in the embodiment of the present application two when calibration mode is for transmission channel calibration mode the implementing of step S103
Mode flow chart；
Fig. 8 be in the embodiment of the present application two when calibration mode is for transmission channel calibration mode the implementing of step S104
Mode flow chart；
Fig. 9 is the specific implementation flow chart of step S704 in the embodiment of the present application two.
Specific embodiment
The embodiment of the present invention provides the calibration steps of a kind of array antenna system and antenna, for solving to lack in prior art
The weary technical problem for carrying out quick method for self-calibrating to antenna, realizing offer one kind can carry out quickly self-alignment array antenna
The technique effect of system.
Technical scheme in the embodiment of the present application is to solve above-mentioned technical problem, and general thought is as follows：
A kind of array antenna system, including：
Main frame；
Receiver with Three-Channel, is connected with the main frame；
Radio-frequency front-end, is connected with the Receiver with Three-Channel by transceiver channel；
Passage switching switch, the first end of the passage switching switch is connected with the radio-frequency front-end；
Calibration source, the second end for switching switch with the passage is connected；
Transmitter, the 3rd end for switching switch with the passage is connected；
Wherein, when described in the host computer control, passage switching switch is in the connection status being connected with the calibration source,
The first calibration mode of the array antenna system is determined by the main frame, and is controlled corresponding with first calibration mode
At least one passage is in running order, and after calibration source transmitting calibration signal described in the host computer control, the main frame is based on
The reception signal that the Receiver with Three-Channel is obtained, calculates the transceiver channel corresponding with first calibration mode extremely
A few calibration value, wherein, first calibration mode be for being calibrated to the receiving channel in the transceiver channel
Receiving channel calibration mode or the transmission channel calibration mode for being calibrated to the transmission channel in the transceiver channel, institute
At least one passage is stated at least one of the radio-frequency front-end and/or Receiver with Three-Channel signalling channel.
In technique scheme, using main frame；Receiver with Three-Channel, is connected with the main frame；Radio-frequency front-end, by receiving
Send out passage to be connected with the Receiver with Three-Channel；Passage switching switch, the first end of the passage switching switch and the radio frequency
Front end is connected；Calibration source, the second end for switching switch with the passage is connected；Transmitter, switches the of switch with the passage
The connected technological means in three ends, so, by antenna array system design internal calibration source so that antenna calibration when no
Need external accessory；And antenna system is made after align mode by control passage switching switch, the school that calibration source sends
Calibration signal is after each transceiver channel, and in sending to main frame, the calibration value of each transceiver channel determined by main frame by computing,
So as to substantially reduce detection calibration cost time, so as to efficiently solve in prior art lack antenna is carried out quick from
The technical problem of calibration steps, it is achieved that a kind of technique effect that can carry out quickly self-alignment array antenna system is provided.
In order to be better understood from technique scheme, below by accompanying drawing and specific embodiment to technical solution of the present invention
Be described in detail, it should be understood that the specific features in the embodiment of the present application and embodiment be to the detailed of technical solution of the present invention
Thin explanation, rather than the restriction to technical solution of the present invention, in the case of not conflicting, the embodiment of the present application and embodiment
In technical characteristic can be combined with each other.
Embodiment one
Fig. 1 is refer to, is a kind of structured flowchart of the array antenna system for providing in the embodiment of the present application one, including：
Main frame 10；
Receiver with Three-Channel 20, is connected with main frame 10；
Radio-frequency front-end 30, is connected with Receiver with Three-Channel 20 by transceiver channel；
Passage switching switch 40, the first end of passage switching switch 40 is connected with radio-frequency front-end 30；
Calibration source 50, is connected with the second end of passage switching switch 40；
Transmitter 60, is connected with the 3rd end of passage switching switch 40；
Wherein, when 10 control passage of main frame switching switch 40 is in the connection status being connected with calibration source 50, by master
Machine 10 determines the first calibration mode of the array antenna system, and controls and first calibration mode corresponding at least one
Passage is in running order, and after main frame 10 controls 50 transmitting calibration signal of calibration source, main frame 10 is based on Receiver with Three-Channel 20
The reception signal of acquisition, calculates at least one calibration value of the transceiver channel corresponding with first calibration mode, its
In, first calibration mode is the receiving channel calibration mode for being calibrated to the receiving channel in the transceiver channel
Or the transmission channel calibration mode for being calibrated to the transmission channel in the transceiver channel, at least one passage is
At least one of radio-frequency front-end 30 and/or Receiver with Three-Channel 20 signalling channel.
In the embodiment of the present application, the antenna system also includes：
Selecting switch 70, is arranged between radio-frequency front-end 30 and Receiver with Three-Channel 20, wherein, the difference of the transceiver channel
Passage is connected with radio-frequency front-end 30 by selecting switch 70.
Circulator 80, is arranged between radio-frequency front-end 30 and Receiver with Three-Channel 20, wherein, the control of the transceiver channel
Passage is connected with radio-frequency front-end 30 by circulator 80.
In the embodiment of the present application, radio-frequency front-end 30 includes：
Combiner 301, the first end of combiner 301 is connected with Receiver with Three-Channel 20, forms the sum of the transceiver channel
Passage, the second end of combiner 301 and the three-terminal link of selecting switch 70, the 4th end of selecting switch 70 is received with triple channel
Machine 20 connects, and when selecting switch 70 is placed in three end, forms the poor passage, the 5th end of combiner 301 and annular
The six end connecting of device 80, forms the control passage；
Phaser array 302, is connected with combiner 301, and wherein, phaser array 302 included at least one phase shifter；
Array antenna unit 303, array antenna unit 303 is by least one antenna element and corresponding with the control passage
Radiating element composition, at least one antenna element and at least one phase shifter are one-to-one relationship, the spoke
Penetrate unit to be connected with combiner 301.
In specific implementation process, so that the number of the array antenna unit 303 is 6 as an example, array antenna unit 303
Each antenna element be connected with combiner 301 by a phase shifter, be additionally provided with control in array antenna unit
The radiating element of passage, the radiating element is directly connected with combiner 301 and need not arrange the phase shifter.Certainly, people in the art
Member can arrange the antenna element of respective numbers according to actual needs, and the array antenna can be specifically phased array day
Line, or other sensors array antenna, such as communication array antenna, linear array antenna etc., the mode of aerial radiation has
Body can be mutual coupling mode, or far-field radiation mode, not be restricted in the embodiment of the present application.
In the embodiment of the present application, the 7th end of passage switching switch 40 is connected with the 8th end of selecting switch 70, passage
9th end of switching switch 40 is connected with the tenth end of circulator 80, and passage switching switchs 40 the tenth one end and combiner 301
The 12nd end connection.
In specific implementation process, when the antenna system normal work, passage switching switch 40 switches to transmitter
Passage, to complete transmitting and the reception of signal；When the antenna system is in align mode, passage switching switch 40 is switched to
Calibrated channel, to complete the calibration to whole antenna system.
Embodiment two
It is based on and one identical inventive concept of the embodiment of the present application, Fig. 2 is refer to, is the one of the offer of the embodiment of the present application two
The calibration steps of antenna is planted, is applied in array antenna, methods described includes：
S101：Passage switching switch in array antenna system described in host computer control in the array antenna system is in
The connection status being connected with the calibration source in the array antenna system；
S102：The main frame determines the first calibration mode of the array antenna system, wherein, first calibration mode
It is receiving channel calibration mode for being calibrated to the receiving channel in the array antenna system or for the battle array
The transmission channel calibration mode calibrated by transmission channel in array antenna system；
S103：In array antenna system described in the host computer control with first calibration mode corresponding at least one
Passage is in running order, and wherein, at least one passage is the radio-frequency front-end in the array antenna system and/or described
At least one of Receiver with Three-Channel in array antenna system signalling channel；
S104：After calibration source transmitting calibration signal described in the host computer control, the main frame is based on by the threeway
The reception signal corresponding with the calibration signal that road receiver is obtained, calculates corresponding described with first calibration mode
Receiving channel or at least one calibration value of the transmission channel.
In specific implementation process, the calibration steps can apply to the passage of phased array antenna and receiver system school
Accurate, it is also possible to be applied to the passage calibration of other sensors array, here, just differ one schematically illustrating.In the embodiment of the present application,
As a example by being applied in the antenna system as embodiment one by the calibration steps, retouched to the calibration steps in detail
State.
When calibrating to antenna system using the method in the embodiment of the present application, step S101 is first carried out, i.e.,：Described
Passage switching switch in array antenna system described in host computer control in array antenna system is in and the array antenna system
The connection status of the calibration source connection in system.
In specific implementation process, the main frame can be the electronic equipment with display screen, permissible on display screen
The button for being calibrated to antenna is shown, when Host Detection is operated to calibration knob to user, will be generated
Control passage switching switch switches to the control instruction of align mode, and then control passage switching switch is switched to calibrated channel.
Certainly, the main frame can also adopt other triggering mode triggerings to switch the control of switch to passage, in the embodiment of the present application
It is not restricted.
After execution completes step S101, method in the embodiment of the present application just execution step S102, i.e.,：The main frame
Determine the first calibration mode of the array antenna system, wherein, first calibration mode be for the array antenna
Receiving channel calibration mode that receiving channel in system is calibrated or for leading to the transmitting in the array antenna system
The transmission channel calibration mode calibrated by road.
In specific implementation process, above-mentioned example is continued to use, can also show on the display screen of the main frame to transmitting
Transmission channel calibration knob and the receiving channel calibration knob calibrated by receiving channel that passage is calibrated, when main frame is examined
When measuring user and operating transmission channel calibration knob, determine that current alignment pattern for transmission channel calibration mode；If
When detecting user receiving channel calibration knob being operated, it is determined that current alignment pattern be.
Certainly, the main frame can also determine current alignment pattern using other modes, not be restricted in the embodiment of the present application.
After execution completes step S102, method in the embodiment of the present application just execution step S103, i.e.,：The main frame
Control at least one passage corresponding with first calibration mode in the array antenna system in running order, its
In, at least one passage is the radio-frequency front-end in the array antenna system and/or three in the array antenna system
At least one of channel receiver signalling channel.
In the embodiment of the present application, as calibration mode has two kinds, therefore, both calibration modes will be entered respectively below
Row explanation：
The first, receiving channel calibration mode：
Fig. 3 is refer to, when the main frame determines first calibration mode for the receiving channel calibration mode, step
The specific implementation of S103 is as follows：
S201：The host computer control is by by circulator and passage switching switch in the array antenna system
The control passage of connection is transmission channel state；
S202：The host computer control is arranged on the selecting switch in the array antenna system and is in and switched with the passage
The state of switch connection, to control poor passage as receiving channel state；
S203：The host computer control and passage are receiving channel state；
Wherein, the array antenna system includes described and passage, the poor passage and the control passage.
In specific implementation process, the host computer control is divided into two-way by the calibration signal that calibration source is launched, and leads up to
Circulator, via Ω passage (control passage), exports to the corresponding radiating element of Ω passage (Ω radiating element), couples through front
It is input into Σ passage (and passage) after phase shift synthesis and receives；Another road is then directly exported (poor logical to Δ passage by selecting switch
Road) receive, meanwhile, Receiver with Three-Channel is then sampled to Σ passage, Δ Channel Synchronous respectively.
After execution completes step S103, method in the embodiment of the present application just execution step S104, i.e.,：In the master
After machine controls the calibration source transmitting calibration signal, the main frame is based on being obtained by the Receiver with Three-Channel and the school
The corresponding reception signal of calibration signal, calculates the receiving channel corresponding with first calibration mode or the transmission channel
At least one calibration value.
Fig. 4 is refer to, the specific implementation of step S104 is as follows：
S301：The main frame is obtained presets phase shift matrix；
S302：The main frame is based on the default phase shift adjustment of matrix and the one-to-one phase shift of the array antenna unit
The phase shift value of device；
S303：The main frame is respectively to the Receiver with Three-Channel and channel reception the first signal and to described three
The secondary signal of the poor channel reception of channel receiver is sampled, and obtains the first sampled signal and the second sampled signal；
S304：The main frame calculates described at least one based on first sampled signal and second sampled signal
Calibration value.
In specific implementation process, from the Hilbert transform of signal, time-domain signal can be expressed as's
Form.When calibrating for receiving channel, using Ω channel emission, other all passage Σ channel reception weightings complete wave beam shape
Become, while carrying out AD sampling in Σ receiving channel.As shown in figure 1, inter-channel level differences can be by mutual coupling of antenna characteristic in theory
Emulation is given, and phase contrast is symmetrical along Ω channel center, and gap is
Receiver with Three-Channel is sampled to Σ, Δ Channel Synchronous, and the data that receiving channel is adopted are the letter after each channel weighting
Number, such as following formula：
Wherein,The data of the amplitude for sending for calibration signal and initial phase, i.e. Δ channel reception sampling.
The vector of phase shift equation can be tried to achieve using Σ, Δ passage.
Encoded using hadamard matrix, control rotation phase shift value, it is ensured that the equation of all variables of energy rapid solving, reduce and move
Phase number of times.Hadamard matrix can alignment unit number be directly 2nThe linear array of array element, for less than 2nArray directly according to
2nSolve, the array zero filling for lacking is processed.The sharpest edges of hadamard matrix are orthogonality and symmetrical matrix, n rank Hadamard
Matrix can be expressed as：
8 rank hadamard matrixs are as follows：1 represents that phase shift is 0, -1 expression phase shift π.
Aerial array solution for Unit 6 is as follows：Need to determine 8 times, each Σ of setting, the width difference of Δ passage areThen
Wherein,Amplitude-phase solution value for the 1st passage.
In the embodiment of the present application, Fig. 5 refer to, and the specific implementation of step S302 is as follows：
S401：It is M that the main frame obtains the quantitative value of the array antenna unit in the array antenna system；
S402：The main frame determines the first pendulous frequency for N based on quantitative value M, wherein, M, N be more than or equal to 1
Integer, N is 2 M power.
S403：I is taken successively for 1 to N, the main frame is adjusted according to the matrix value of the i-th row in the default phase shift matrix
The phase shift value of the phase shifter, completes the i ＆ lt phase adjustment to the phase shifter, and when i is for N, the main frame is completed to institute
The n times phase adjustment of phase shifter is stated, wherein, i is the integer more than or equal to 1 and less than or equal to N.
In specific implementation process, above-mentioned example is continued to use, main frame first need to determine the antenna array unit in antenna system
Quantity, e.g., antenna system in the embodiment of the present application has 6 antenna elements, as hadamard matrix to array element need to be
2nLinear array solved, accordingly, it is determined that going out pendulous frequency for 23Secondary, then the array zero filling for lacking is processed, then according to
Each antenna element corresponding phase shifter in each measurement of hadamard matrix adjustment.Every a line of hadamard matrix is corresponded to each time
First behavior [1,1,1,1,1,1,1,1] of the adjusted value of the phase shifter of 6 antenna elements during measurement, such as hadamard matrix, then
When measuring first time, phase shifter of each antenna element, corresponding adjusted value was π；Hadamard matrix the second behavior [1 ,-
1,1, -1,1, -1,1, -1], then, when second measures, the corresponding adjustment of phase shifter of first and third, five antenna elements is most
0, phase shifter of second, four, six antenna elements corresponding adjusted value is π, to be urged with such.Phase place due to the phase shifter is only carried out
0 and π adjustment, therefore, reduces impact of the phase shifter error to calibration accuracy, makes calibration data more true and accurate.
In the embodiment of the present application, the specific implementation of step S303 is as follows：
I is taken successively for 1 to N, when the main frame completes the i ＆ lt phase adjustment, the main frame obtains described and logical
First sampled signal of i ＆ lt in road and second sampled signal of i ＆ lt of the poor passage, when i is for N, obtains N number of first and adopt
Sample signal and N number of second sampled signal.
In specific implementation process, above-mentioned example is continued to use, when main frame controls each antenna element according to hadamard matrix
After phase shifter completes a phase adjustment, main frame is just obtained respectively under current phase place, Σ passage and Δ Air conduct measurement to adopt
Sample signal, until obtaining the first sampled signal of 8 Σ passages and the second sampled signal of 8 Δ passages respectively.
In the embodiment of the present application, Fig. 6 refer to, and the specific implementation of step S304 is as follows：
S501：J is taken successively for 1 to N, the first sampled signal of the Framework computing jth time and the second sampled signal of jth time
Width phase difference, obtains jth time width phase difference, when j is for N, obtains N number of width phase difference, wherein, j be more than or equal to 1 and less than etc.
Integer in N；
S502：K is taken successively for 1 to M, the main frame is according to the row k matrix value of the default phase shift matrix, described N number of
The proper phase of width phase difference and the array antenna system is poor, calculate with the array antenna unit in k-th antenna
K-th calibration value of the corresponding k-th phase shift passage of unit, wherein, k is the integer more than or equal to 1 and less than or equal to N.
In specific implementation process, above-mentioned example is continued to use, after main frame obtains 8 measured values, the just number to all measurements
Value is according to Σ, Δ passage than width, counted than mutually, while calculate single pass amplitude-phase according to hadamard matrix solving
Value.First, Framework computing obtains the width difference of Σ when measuring every time, Δ passage, obtains 8 width phase differences altogether, is designated asUsing the first row data of hadamard matrix as the operation coefficient of 8 width phase difference, then first antenna element pair
The calibration value of the radiation channel that answers is
, and the intrinsic phase contrast that antenna space layout causes is compensated, lead to so as to finally obtain first corresponding radiation of antenna element
The calibration value in road.By that analogy, until the respective calibration value of corresponding 6 radiation channels of 6 antenna elements of acquisition, docking is completed
Receive the calibration of passage.
Second, transmission channel calibration mode：
Fig. 7 is refer to, when the main frame determines first calibration mode for the transmission channel calibration mode, step
The specific implementation of S103 is as follows：
S601：The transmitter channels that the host computer control is connected with passage switching switch are transmission channel state；
S602：The host computer control is arranged on the selecting switch in the array antenna system and is in and switched with the passage
The state of switch connection, to control poor passage as receiving channel state；
S603：The host computer control control passage is receiving channel state；
Wherein, the array antenna system includes the transmitter channels, the poor passage and the control passage.
In specific implementation process, the host computer control is divided into two-way by the calibration signal that calibration source is launched, and a road exports
Radiate to emission port, be input into Ω channel reception after front coupling phase shift synthesis；Another road then directly passes through selecting switch
Export to Δ channel reception, meanwhile, Receiver with Three-Channel is then sampled to Ω passage, Δ Channel Synchronous respectively.
After execution completes step S103, method in the embodiment of the present application just execution step S104, i.e.,：In the master
After machine controls the calibration source transmitting calibration signal, the main frame is based on being obtained by the Receiver with Three-Channel and the school
The corresponding reception signal of calibration signal, calculates the receiving channel corresponding with first calibration mode or the transmission channel
At least one calibration value.
Fig. 8 is refer to, the specific implementation of step S104 is as follows：
S701：The main frame is obtained presets phase shift matrix；
S702：The main frame is based on the default phase shift adjustment of matrix and the one-to-one phase shift of the array antenna unit
The phase shift value of device；
S703：The main frame the 3rd signal respectively to the poor channel reception of the Receiver with Three-Channel and to described three
The 4th signal that the control passage of channel receiver is received is sampled, and obtains the 3rd sampled signal and the 4th sampled signal；
S704：The main frame calculates described at least one based on the 3rd sampled signal and the 4th sampled signal
Calibration value.
In specific implementation process, when calibrating for transmission channel, calibration source selects output to Δ channel reception, transmitting terminal
Mouthful, the sampling of Δ channel reception, the sampling of Ω channel reception, the phase shift of each receiving channel of adjustment is required also according to hadamard matrix
Value, the signal for receiving is the synthesis of aerial array each unit transmission signal.Adjust the phase shift value of each transmission channel, the conjunction of transmitting
Become signal change, each can be calculated with the phase relation of each passage according to receiver sampling Δ, Ω passage numerical value
The calibration value of transmission channel.Concrete principle refer to receiving channel calibration mode, and here is just repeated no more.
In the embodiment of the present application, the specific implementation of step S702 and step S302 in receiving channel calibration mode
Specific implementation is identical, and here is just repeated no more.
In the embodiment of the present application, the specific implementation of step S703 is as follows：
I is taken successively for 1 to N, when the main frame completes the i ＆ lt phase adjustment, the main frame obtains the difference and leads to
The 3rd sampled signal of i ＆ lt in road and the 4th sampled signal of i ＆ lt of the control passage, when i is for N, obtain the N number of 3rd
Sampled signal and N number of 4th sampled signal.
In specific implementation process, above-mentioned example is continued to use, when main frame controls each antenna element according to hadamard matrix
After phase shifter completes a phase adjustment, main frame is just obtained respectively under current phase place, Ω passage and Δ Air conduct measurement to adopt
Sample signal, until obtaining the 3rd sampled signal of 8 Δ passages and the 4th sampled signal of 8 Ω passages respectively.
In the embodiment of the present application, Fig. 9 refer to, and the specific implementation of step S704 is as follows：
S801：J is taken successively for 1 to N, the 3rd sampled signal of the Framework computing jth time and the 4th sampled signal of jth time
Width phase difference, obtains jth time width phase difference, when j is for N, obtains N number of width phase difference, wherein, j be more than or equal to 1 and less than etc.
Integer in N；
S802：K is taken successively for 1 to M, the main frame is according to the row k matrix value of the default phase shift matrix, described N number of
The proper phase of width phase difference and the array antenna system is poor, calculate with the array antenna unit in k-th antenna
K-th calibration value of the corresponding k-th phase shift passage of unit, wherein, k is the integer more than or equal to 1 and less than or equal to N.
In specific implementation process, above-mentioned example is continued to use, after main frame obtains 8 measured values, the just number to all measurements
Value is according to Ω, Δ passage than width, counted than mutually, while calculate single pass amplitude-phase according to hadamard matrix solving
Value.First, Framework computing obtains the width difference of Ω when measuring every time, Δ passage, obtains 8 width phase differences altogether, is designated asUsing the first row data of hadamard matrix as the operation coefficient of 8 width phase difference, then first antenna element pair
The calibration value of the radiation channel that answers is
, and the intrinsic phase contrast that antenna space layout causes is compensated, lead to so as to finally obtain first corresponding radiation of antenna element
The calibration value in road.By that analogy, until the respective calibration value of corresponding 6 radiation channels of 6 antenna elements of acquisition, complete to sending out
Penetrate the calibration of passage.
Calibration steps in the embodiment of the present application can allow equipment equipment or using after enter Mobile state school whenever and wherever possible
Standard, so as to increased testability and the maintainability of array antenna system equipment.
By the one or more technical schemes in the embodiment of the present application, it is possible to achieve one or more technology are imitated as follows
Really：
First, due to the technical scheme in the embodiment of the present application, using main frame；Receiver with Three-Channel, is connected with the main frame；
Radio-frequency front-end, is connected with the Receiver with Three-Channel by transceiver channel；Passage switching switch, the of passage switching switch
One end is connected with the radio-frequency front-end；Calibration source, the second end for switching switch with the passage is connected；Transmitter is logical with described
Road switches the connected technological means in the 3rd end for switching, by designing internal calibration source in antenna array system, so that antenna
In calibration without the need for external accessory；And switching switch by control passage makes antenna system after align mode, calibrates
The calibration signal that source sends is after each transceiver channel, and in sending to main frame, by computing, main frame determines that each transmitting-receiving is logical
The calibration value in road, so as to substantially reduce the time of detection calibration cost, lacks to day so as to efficiently solve in prior art
Line carries out the technical problem of quick method for self-calibrating, it is achieved that providing one kind can carry out quickly self-alignment array antenna system
Technique effect.
2nd, due to the technical scheme in the embodiment of the present application, using main frame；Receiver with Three-Channel, is connected with the main frame；
Radio-frequency front-end, is connected with the Receiver with Three-Channel by transceiver channel；Passage switching switch, the of passage switching switch
One end is connected with the radio-frequency front-end；Calibration source, the second end for switching switch with the passage is connected；Transmitter is logical with described
Road switches the connected technological means in the 3rd end for switching, and so, design passage switching switch, is led to by controlling in an antenna array
Road switching switch, makes antenna system be operated in signal transmitting and receiving state and signal calibration state, so as to avoid to each passage design
Individually switch and load, it is achieved that simplify the technique effect of the hardware designs of antenna system.
3rd, due to the technical scheme in the embodiment of the present application, using main frame；Receiver with Three-Channel, is connected with the main frame；
Radio-frequency front-end, is connected with the Receiver with Three-Channel by transceiver channel；Passage switching switch, the of passage switching switch
One end is connected with the radio-frequency front-end；Calibration source, the second end for switching switch with the passage is connected；Transmitter is logical with described
Road switches the connected technological means in the 3rd end for switching, so, when antenna system is in align mode, the school that calibration source sends
Calibration signal is after each transceiver channel, and in sending to main frame, the calibration value of each transceiver channel determined by main frame by computing,
Calibrate for system amplitude-phase consistency so as to by antenna calibration problem dynamic design, convert antenna calibration, reduce multiple error pair
The impact of system calibration precision.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into being had altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (15)
1. a kind of array antenna system, including：
Main frame；
Receiver with Three-Channel, is connected with the main frame；
Radio-frequency front-end, is connected with the Receiver with Three-Channel by transceiver channel；
Passage switching switch, the first end of the passage switching switch is connected with the radio-frequency front-end；
Calibration source, the second end for switching switch with the passage is connected；
Transmitter, the 3rd end for switching switch with the passage is connected；
Wherein, when described in the host computer control, passage switching switch is in the connection status being connected with the calibration source, pass through
The main frame determines the first calibration mode of the array antenna system, and controls corresponding at least with first calibration mode
One passage is in running order, and after calibration source transmitting calibration signal described in the host computer control, the main frame is based on described
The reception signal that Receiver with Three-Channel is obtained, calculates at least the one of the transceiver channel corresponding with first calibration mode
Individual calibration value, wherein, first calibration mode is the reception for being calibrated to the receiving channel in the transceiver channel
Passage calibration mode or the transmission channel calibration mode for being calibrated to the transmission channel in the transceiver channel, described extremely
A few passage is at least one of the radio-frequency front-end and/or Receiver with Three-Channel signalling channel.
2. antenna system as claimed in claim 1, it is characterised in that the antenna system also includes：
Selecting switch, is arranged between the radio-frequency front-end and the Receiver with Three-Channel, wherein, and the difference of the transceiver channel is led to
Road is connected with the radio-frequency front-end by the selecting switch.
3. antenna system as claimed in claim 2, it is characterised in that the antenna system also includes：
Circulator, is arranged between the radio-frequency front-end and the Receiver with Three-Channel, wherein, and the control of the transceiver channel is led to
Road is connected with the radio-frequency front-end by the circulator.
4. antenna system as claimed in claim 3, it is characterised in that the radio-frequency front-end includes：
Combiner, the first end of the combiner is connected with the Receiver with Three-Channel, formed the transceiver channel and passage,
Second end of the combiner and the three-terminal link of the selecting switch, the 4th end and the triple channel of the selecting switch
Receiver connects, and when the selecting switch is placed in three end, forms the poor passage, the 5th end of the combiner with
The six end connecting of the circulator, forms the control passage；
Phaser array, is connected with the combiner, and wherein, the phaser array included at least one phase shifter；
Array antenna unit, the array antenna unit is by least one antenna element and radiation corresponding with the control passage
Unit constitutes, and at least one antenna element is one-to-one relationship, the radiating element with least one phase shifter
It is connected with the combiner.
5. antenna system as claimed in claim 4, it is characterised in that the 7th end of the passage switching switch and the selection
The 8th end connection of switch, the 9th end of the passage switching switch is connected with the tenth end of the circulator, and the passage is cut
The tenth one end for changing switch is connected with the 12nd end of the combiner.
6. a kind of calibration steps of antenna, is applied in array antenna system, and methods described includes：
Passage switching switch in array antenna system described in host computer control in the array antenna system is in and the battle array
The connection status of the calibration source connection in array antenna system；
The main frame determines the first calibration mode of the array antenna system, wherein, first calibration mode be for right
Receiving channel calibration mode that receiving channel in the array antenna system is calibrated or for the array antenna system
The transmission channel calibration mode calibrated by transmission channel in system；
At least one passage corresponding with first calibration mode in array antenna system described in the host computer control is in
Working condition, wherein, at least one passage is the radio-frequency front-end in the array antenna system and/or the array antenna
At least one of Receiver with Three-Channel in system signalling channel；
After calibration source transmitting calibration signal described in the host computer control, the main frame is based on and is obtained by the Receiver with Three-Channel
The reception signal corresponding with the calibration signal for taking, calculate the receiving channel corresponding with first calibration mode or
At least one calibration value of the transmission channel.
7. method as claimed in claim 6, it is characterised in that determine that first calibration mode is connect for described in the main frame
When receiving passage calibration mode, corresponding at least with first calibration mode in array antenna system described in the host computer control
One passage is in running order, including：
The host computer control is by the control being connected with passage switching switch by circulator in the array antenna system
Passage processed is transmission channel state；
The selecting switch that the host computer control is arranged in the array antenna system is in and is connected with passage switching switch
State, to control poor passage as receiving channel state；
The host computer control and passage are receiving channel state；
Wherein, the array antenna system includes described and passage, the poor passage and the control passage.
8. method as claimed in claim 6, it is characterised in that determine first calibration mode for described in the main frame
When penetrating passage calibration mode, corresponding at least with first calibration mode in array antenna system described in the host computer control
One passage is in running order, including：
The transmitter channels that the host computer control is connected with passage switching switch are transmission channel state；
The selecting switch that the host computer control is arranged in the array antenna system is in and is connected with passage switching switch
State, to control poor passage as receiving channel state；
The host computer control control passage is receiving channel state；
Wherein, the array antenna system includes the transmitter channels, the poor passage and the control passage.
9. method as claimed in claim 7, it is characterised in that described believe in calibration source transmitting calibration described in the host computer control
After number, the main frame is calculated based on reception signal corresponding with the calibration signal is obtained by the Receiver with Three-Channel
Go out at least one calibration value of the receiving channel corresponding with first calibration mode or the transmission channel, including：
The main frame is obtained presets phase shift matrix；
Phase shift of the main frame based on the default phase shift adjustment of matrix and the array antenna unit one-to-one phase shifter
Value；
The main frame is respectively to the Receiver with Three-Channel and channel reception the first signal and to triple channel reception
The secondary signal of the poor channel reception of machine is sampled, and obtains the first sampled signal and the second sampled signal；
The main frame calculates at least one calibration value based on first sampled signal and second sampled signal.
10. method as claimed in claim 8, it is characterised in that described in calibration source transmitting calibration described in the host computer control
After signal, the main frame is counted based on reception signal corresponding with the calibration signal is obtained by the Receiver with Three-Channel
At least one calibration value of the receiving channel corresponding with first calibration mode or the transmission channel is calculated, including：
The main frame is obtained presets phase shift matrix；
Phase shift of the main frame based on the default phase shift adjustment of matrix and the array antenna unit one-to-one phase shifter
Value；
The main frame the 3rd signal respectively to the poor channel reception of the Receiver with Three-Channel and the triple channel is received
The 4th signal that the control passage of machine is received is sampled, and obtains the 3rd sampled signal and the 4th sampled signal；
The main frame calculates at least one calibration value based on the 3rd sampled signal and the 4th sampled signal.
11. methods as described in claim 9 or 10, it is characterised in that the main frame is based on the default phase shift adjustment of matrix
With the phase shift value of the array antenna unit one-to-one phase shifter, including：
It is M that the main frame obtains the quantitative value of the array antenna unit in the array antenna system；
The main frame determines the first pendulous frequency for N based on quantitative value M；
Wherein, M, N are the integer more than or equal to 1, and N is 2 M power；
I is taken successively for 1 to N, the main frame adjusts the phase shifter according to the matrix value of the i-th row in the default phase shift matrix
Phase shift value, complete the i ＆ lt phase adjustment to the phase shifter, when i is for N, the main frame completes the N to the phase shifter
Secondary phase adjustment, wherein, i is the integer more than or equal to 1 and less than or equal to N.
12. methods as claimed in claim 9, it is characterised in that the main frame is respectively to the Receiver with Three-Channel and logical
The first signal and the secondary signal of the poor channel reception of the Receiver with Three-Channel is sampled that road is received, obtain first
Sampled signal and the second sampled signal, including：
I is taken successively for 1 to N, when the main frame completes the i ＆ lt phase adjustment, the main frame obtains described and passage
Second sampled signal of i ＆ lt of the first sampled signal of i ＆ lt and the poor passage, when i is for N, obtains N number of first sampling letter
Number and N number of second sampled signal.
13. methods as claimed in claim 12, it is characterised in that the main frame is based on first sampled signal and described the
Two sampled signals calculate at least one calibration value, including：
J is taken successively for 1 to N, the width phase difference of the first sampled signal of the Framework computing jth time and the second sampled signal of jth time,
Jth time width phase difference is obtained, when j is for N, N number of width phase difference is obtained, wherein, j is more than or equal to 1 and whole less than or equal to N
Number；
K is taken successively for 1 to M, the main frame according to the row k matrix value of the default phase shift matrix, N number of width phase difference with
And the proper phase of the array antenna system is poor, calculate corresponding with k-th antenna element in the array antenna unit
K-th calibration value of k-th phase shift passage, wherein, k is the integer more than or equal to 1 and less than or equal to N.
14. methods as claimed in claim 10, it is characterised in that the main frame leads to the difference of the Receiver with Three-Channel respectively
The 3rd signal that road is received and the 4th signal received by the control passage of the Receiver with Three-Channel are sampled, and obtain the
Three sampled signals and the 4th sampled signal, including：
I is taken successively for 1 to N, when the main frame completes the i ＆ lt phase adjustment, the main frame obtains the poor passage
The 3rd sampled signal of i ＆ lt and the 4th sampled signal of i ＆ lt of the control passage, when i is for N, obtain N number of 3rd sampling
Signal and N number of 4th sampled signal.
15. methods as claimed in claim 14, it is characterised in that the main frame is based on the 3rd sampled signal and described the
Four sampled signals calculate at least one calibration value, including：
J is taken successively for 1 to N, the width phase difference of the 3rd sampled signal of the Framework computing jth time and the 4th sampled signal of jth time,
Jth time width phase difference is obtained, when j is for N, N number of width phase difference is obtained, wherein, j is more than or equal to 1 and whole less than or equal to N
Number；
K is taken successively for 1 to M, the main frame according to the row k matrix value of the default phase shift matrix, N number of width phase difference with
And the proper phase of the array antenna system is poor, calculate corresponding with k-th antenna element in the array antenna unit
K-th calibration value of k-th phase shift passage, wherein, k is the integer more than or equal to 1 and less than or equal to N.
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