CN109478937A - Channel calibration method and device - Google Patents
Channel calibration method and device Download PDFInfo
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- CN109478937A CN109478937A CN201780046205.5A CN201780046205A CN109478937A CN 109478937 A CN109478937 A CN 109478937A CN 201780046205 A CN201780046205 A CN 201780046205A CN 109478937 A CN109478937 A CN 109478937A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
Abstract
The application provides a kind of channel calibration method and device, for carrying out channel calibration to beam scanning device, the channel calibrating installation includes: calibrated channel and connect with calibrated channel and be placed on the first probe on subreflector and the second probe, calibrated channel includes radio frequency receiver, radiofrequency launcher and duplexer, the center of first probe face square feed array, the center of the array of 4 feeds composition of the arbitrary neighborhood of the second probe face square feed array.
Description
This application involves field of communication technology more particularly to a kind of channel calibration methods and device.
Wave beam adjustable antenna is generally divided into phased-array antenna, reflector antenna and phased-array antenna+reflector antenna three types, in the application for needing higher antenna gain and low cost, the less phased-array antenna+reflector antenna in channel can realize the compromise of cost and performance.Wave beam adjustable antenna constitutes feed array usually using mutiple antennas unit, and each antenna element can form scannable wave beam by space combination with individual control signal phase, the signal of different antennae unit.To the antenna radiation pattern got well, it is necessary to carry out channel calibration to the phase mismatch of each antenna element.
In the prior art, it is a kind of suitable for phased-array antenna+reflector antenna multi-channel calibration method be using from coupling calibration, multiple probes are placed around antenna element, arrange relationship by detecting from the signal amplitude and phase for coupling antenna element, and in conjunction with antenna element geometry to be calibrated.
In above-mentioned calibration method, multiple probes are placed around antenna element will affect the close arrangement of antenna element, unnecessary antenna performance is caused to be lost, the signal phase of detection simultaneously from coupling antenna element needs complicated Digital Signal Processing (Digital Signal Processing, DSP) algorithm, and calibration accuracy is not high.
Summary of the invention
The application provides a kind of channel calibration method and device, does not need the signal phase for obtaining antenna element, without complicated calculating is carried out, is easy to realize in the product.
First aspect, the application provides a kind of channel calibrating installation, for carrying out channel calibration to beam scanning device, beam scanning device has primary reflection surface and subreflector, 4 radio-frequency channels, 4 groups of adjustable phase shifters being separately positioned in 4 radio-frequency channels, 16 feed square feed arrays formed and 4 four throw switches of hilted broadsword being separately positioned in 4 radio-frequency channels, channel calibrating installation includes: calibrated channel and connect with calibrated channel, and it is placed on the first probe on subreflector and the second probe, calibrated channel includes radio frequency receiver, radiofrequency launcher and duplexer, the center of first probe face square feed array, the center of the array of 4 feeds composition of the arbitrary neighborhood of second probe face square feed array.
It is connect by setting calibrated channel and with calibrated channel, and it is placed on the first probe on subreflector and the second probe, first probe and the second probe can receive the signal of radio-frequency channel, signal can also be emitted to calibrate for radio-frequency channel, switch the connection of calibrated channel and the first probe or the second probe, adjust the adjustable phase shifter of radio-frequency channel, beam scanning device is carried out according to preset rules to power on transmitting calibration, power on reception calibration, real time emission calibration or real-time reception calibration, the signal phase of acquisition feed (antenna element) is not needed, without the calculating for carrying out complexity, it is easy to realize in the product.
In a kind of possible design, channel calibrating installation further includes switching switch, and switching switch one end connects duplexer, and the other end connects the first probe and the second probe.
By the setting of switching switch, cost can be reduced.
In a kind of possible design, switching switch is single-pole double-throw switch (SPDT).
In a kind of possible design, the first probe is used to receive the signal signal or transmitting calibration signal that perhaps the second probe of transmitting calibration signal emits for receiving feed of feed transmitting.
In a kind of possible design, further includes:
Processor, for controlling the connection of the calibrated channel and first probe or second probe according to preset rules, controlling 4 groups of adjustable phase shifters and 4 hilted broadswords, four throw switch, calibrated with power on transmitting calibration to the beam scanning device, powering on reception calibration, real time emission calibration or real-time reception, the preset rules are as follows: relative to the symmetrical 4 feed phases of first probe when consistent described in the power that receives of the first probe it is maximum；Relative to the symmetrical 4 feed phases of second probe when consistent described in the power that receives of the second probe it is maximum；It is maximum relative to the symmetrical 4 feed phases of the first probe or the second probe signal that 4 radio-frequency channels receive when consistent synthesis power.
Second aspect, the application provide a kind of channel calibration method, in each possible design for first aspect and first aspect in any channel calibrating installation, this method comprises:
Beam scanning device is carried out to power on transmitting calibration according to relative to the symmetrical 4 feed phases of the first probe power that first probe receives when consistent maximum and relative to the symmetrical 4 feed phases of the second probe prominent rule that second probe receives when consistent；When real time calibration trigger condition is triggered, real time emission calibration is carried out to beam scanning device according to 4 feed phases at square 4 angles of feed array prominent rule that first probe receives when consistent；Wherein, when carrying out powering on transmitting calibration or real time emission calibration, feed emits signal, and the first probe or the second probe receive the signal of feed transmitting.
By the connection for switching calibrated channel and the first probe or the second probe, adjust the adjustable phase shifter of radio-frequency channel, beam scanning device is carried out to power on transmitting calibration and real time emission calibration according to relative to the symmetrical 4 feed phases of the first probe signal that 4 radio-frequency channels receive when consistent synthesis power maximum and relative to the symmetrical 4 feed phases of the second probe signal that 4 radio-frequency channels receive when consistent synthesis prominent rule, the signal phase of acquisition feed (antenna element) is not needed, without the calculating for carrying out complexity, it is easy to realize in the product.
In a kind of possible design, beam scanning device is carried out to power on transmitting calibration according to relative to the symmetrical 4 feed phases of the first probe power that first probe receives when consistent maximum and relative to the symmetrical 4 feed phases of the second probe prominent rule that second probe receives when consistent, is specifically as follows:
Calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to corresponding first group 4 feeds nearest with square feed array center, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with first group of 4 feed receives the first probe, obtains the phase parameter value of first group of adjustable phase shifter corresponding with first group of 4 feed；
By 4 hilted broadsword four-throw switchings to second group of 4 feed at 4 angles of corresponding square feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with second group of 4 feed receives the first probe, obtains the phase parameter value of second group of adjustable phase shifter corresponding with second group of 4 feed；
By 4 feeds of the group of third up and down of 4 hilted broadsword four-throw switchings intermediate two column into corresponding square feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with 4 feeds of third group receives the first probe, obtains the phase parameter value of third group adjustable phase shifter corresponding with 4 feeds of third group；
By 4 feeds in the 4th group of left and right of 4 hilted broadsword four-throw switchings middle two rows into corresponding square feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with the 4th group of 4 feeds receives the first probe, obtains the phase parameter value of the 4th group of adjustable phase shifter corresponding with the 4th group of 4 feeds；
Calibrated channel is switched to the second probe of connection, by 4 hilted broadsword four-throw switchings into corresponding square feed array relative to symmetrical 5th group of 4 feeds of the second probe, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with the 5th group of 4 feeds receives the second probe, obtains the phase parameter value of the 5th group of adjustable phase shifter corresponding with the 5th group of 4 feeds；
The phase parameter value of the phase parameter value of first group of adjustable phase shifter, the phase parameter value of second group of adjustable phase shifter, the phase parameter value of third group adjustable phase shifter and the 4th group of adjustable phase shifter is corrected respectively according to the phase parameter value of the 5th group of adjustable phase shifter.
In a kind of possible design, real time emission calibration is carried out to beam scanning device according to 4 feed phases at square 4 angles of feed array prominent rule that first probe receives when consistent, it is specifically as follows: calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to the 6th group of 4 feeds at 4 angles of corresponding square feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with the 6th group of 4 feeds receives the first probe, obtain the phase parameter value of the 6th group of adjustable phase shifter corresponding with the 6th group of 4 feeds；The real time correction value of each radio-frequency channel is obtained according to the phase parameter value of the 6th group of adjustable phase shifter.
In a kind of possible design, real time calibration trigger condition is triggered, and is specifically as follows: reaching predetermined period triggered time or bit error rate decline.
The third aspect, the application provides a kind of channel calibration method, in each possible design for first aspect and first aspect in any channel calibrating installation, this method comprises: carrying out powering on reception calibration to beam scanning device according to relative to the symmetrical 4 feed phases of the first probe signal that 4 radio-frequency channels receive when consistent synthesis power maximum and relative to the prominent rule of the symmetrical 4 feed phases of the second probe signal that 4 radio-frequency channels receive when consistent synthesis；When real time calibration trigger condition is triggered, real-time reception calibration is carried out to beam scanning device according to the prominent rule of 4 feed phases at square 4 angles of feed array signal that 4 radio-frequency channels receive when consistent synthesis；Wherein, when carrying out powering on reception calibration or real-time reception calibration, the first probe or the second probe issue calibration signal, and feed receives calibration signal.
By the connection for switching calibrated channel and the first probe or the second probe, adjust the adjustable phase shifter of radio-frequency channel, beam scanning device is carried out to power on reception calibration and real-time reception calibration according to relative to the symmetrical 4 feed phases of the first probe signal that 4 radio-frequency channels receive when consistent synthesis power maximum and relative to the symmetrical 4 feed phases of the second probe signal that 4 radio-frequency channels receive when consistent synthesis prominent rule, the signal phase of acquisition feed (antenna element) is not needed, without the calculating for carrying out complexity, it is easy to realize in the product.
In a kind of possible design, beam scanning device is carried out to power on reception calibration according to relative to the symmetrical 4 feed phases of the first probe signal that 4 radio-frequency channels receive when consistent synthesis power maximum and relative to the symmetrical 4 feed phases of the second probe signal that 4 radio-frequency channels receive when consistent synthesis prominent rule, is specifically as follows:
The first probe is motivated to issue calibration signal；
Calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to corresponding first group 4 feeds nearest with square feed array center, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with first group of 4 feed receives 4 radio-frequency channels, obtains the phase parameter value of first group of adjustable phase shifter corresponding with first group of 4 feed；
By 4 hilted broadsword four-throw switchings to second group of 4 feed at 4 angles of corresponding square feed array, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with second group of 4 feed receives 4 radio-frequency channels, obtains the phase parameter value of second group of adjustable phase shifter corresponding with second group of 4 feed；
By 4 feeds of the group of third up and down of 4 hilted broadsword four-throw switchings intermediate two column into corresponding square feed array,
It is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with 4 feeds of third group receives 4 radio-frequency channels, obtains the phase parameter value of third group adjustable phase shifter corresponding with 4 feeds of third group；
By 4 feeds in the 4th group of left and right of 4 hilted broadsword four-throw switchings middle two rows into corresponding square feed array, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with the 4th group of 4 feeds receives 4 radio-frequency channels, obtains the phase parameter value of the 4th group of adjustable phase shifter corresponding with the 4th group of 4 feeds；
Calibrated channel is switched to the second probe of connection, second probe is motivated to issue calibration signal, by 4 hilted broadsword four-throw switchings into corresponding square feed array relative to symmetrical 5th group of 4 feeds of the second probe, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with the 5th group of 4 feeds receives 4 radio-frequency channels, obtains the phase parameter value of the 5th group of adjustable phase shifter corresponding with the 5th group of 4 feeds；
The phase parameter value of the phase parameter value of first group of adjustable phase shifter, the phase parameter value of second group of adjustable phase shifter, the phase parameter value of third group adjustable phase shifter and the 4th group of adjustable phase shifter is corrected respectively according to the phase parameter value of the 5th group of adjustable phase shifter.
In a kind of possible design, real-time reception calibration is carried out to beam scanning device according to 4 feed phases at square 4 angles of feed array signal that 4 radio-frequency channels receive when consistent synthesis prominent rule, it is specifically as follows: calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to corresponding 6th group of 4 feeds, the first probe is motivated to issue calibration signal simultaneously, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with the 6th group of 4 feeds receives 4 radio-frequency channels, obtain the phase parameter value of the 6th group of adjustable phase shifter corresponding with the 6th group of 4 feeds；The real time correction value of each radio-frequency channel is obtained according to the phase parameter value of the 6th group of adjustable phase shifter.
In a kind of possible design, real time calibration trigger condition is triggered, and is specifically as follows: reaching predetermined period triggered time or bit error rate decline.
Fig. 1 is the structural schematic diagram for the beam scanning device that the application is applicable in；
Fig. 2 is the structural schematic diagram of channel calibrating installation embodiment one provided by the present application；
Fig. 3 is the flow diagram of channel calibration method embodiment one provided by the present application；
Fig. 4 is the flow diagram of channel calibration method embodiment two provided by the present application.
The technical solution of the application is mainly used in the channel calibration of wave beam adjustable antenna, the channel calibration method and device that the application proposes, for carrying out channel calibration to beam scanning device, it is exactly the phase alignment for carrying out antenna element (feed), the signal phase of acquisition antenna element is not needed, without complicated calculating is carried out, it is easy to realize in the product, technical solution provided by the present application is described in detail with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram for the beam scanning device that the application is applicable in, as shown in Figure 1, beam scanning device has primary reflection surface 11 and subreflector 12, 4 radio-frequency channels, 4 groups of adjustable phase shifters 13 being separately positioned in 4 radio-frequency channels, 16 feed square feed arrays 14 formed and 4 hilted broadswords, four throw switch 15 being separately positioned in 4 radio-frequency channels, wherein, each group of adjustable phase shifter includes receiving end adjustable phase shifter and transmitting terminal adjustable phase shifter, each radio-frequency channel is by duplexer, the radio frequency receiver and radiofrequency launcher in parallel with duplexer respectively.Power splitter can be used or radio-frequency channel is mapped on feed by waveguide, radio-frequency channel selects different feed groups by four throw switch of hilted broadsword from feed array,
It is equivalent to parabola antenna defocusing and forms beam scanning.By hilted broadsword four-throw switching feed array, parabola antenna defocusing is made to realize beam scanning.As shown in fig. 1,1-2-3-4；2-5-4-7；5-6-7-8；3-4-9-10；4-7-10-13；7-8-13-14；9-10-11-12；10-13-12-15；13-14-15-16 has 9 kinds of feed combinations altogether.Antenna beam is oriented to upper left when being switched to 1-2-3-4, and antenna beam is oriented to lower right when being switched to 13-14-15-16, and antenna beam direction is not deflected perpendicular to paraboloid, wave beam when being switched to 4-7-10-13.Shown in FIG. 1 is a kind of exemplary construction for the beam scanning device that the application is applicable in, for example, square feed array for example can be the square feed array being made of 9,32 or 64 feeds or more in the another exemplary structure of beam scanning device.
Fig. 2 is the structural schematic diagram of channel calibrating installation embodiment one provided by the present application, as shown in Fig. 2, the channel calibrating installation of the present embodiment includes:
It calibrated channel and is connect with calibrated channel, and it is placed on the first probe 21 on subreflector 12 and the second probe 22, calibrated channel includes radio frequency receiver, radiofrequency launcher and duplexer, the center of first probe, 21 face square feed array, first probe 21 can be the center of vertical face square feed array, the center of the array of 4 feeds composition of the arbitrary neighborhood of second probe, 22 face square feed array, second probe 22 can be the center of the array of 4 feeds composition of the arbitrary neighborhood of vertical face square feed array, such as shown in Fig. 2, the center of second probe, 22 face feed 1-2-3-4, or the center of 22 face feed 9-10-11-12 of the second probe, it is also possible to 2-5-4-7；5-6-7-8；3-4-9-10；4-7-10-13；7-8-13-14；10-13-12-15；The center of any group of 4 feeds in 13-14-15-16.Wherein, the first probe is used to receive the signal signal or transmitting calibration signal that perhaps the second probe of transmitting calibration signal emits for receiving feed of feed transmitting.Calibrated channel can receive the signal of radio-frequency channel generation, can also emit signal and be received by radio-frequency channel.
Wherein, calibrated channel can be by the first radio frequency receiver, first radiofrequency launcher, first duplexer and the first probe are sequentially connected in series and the second radio frequency receiver, second radiofrequency launcher, second duplexer and the second probe are sequentially connected in series, or, optionally, as shown in Figure 2, channel calibrating installation further includes switching switch 23, switch 23 one end of switch and connects duplexer, the other end connects the first probe and the second probe, calibrated channel is by radio frequency receiver 24 at this time, radiofrequency launcher 25, duplexer 26, switching switch 23 is sequentially connected in series, switching switch 23 is connect with the first probe 21 and the second probe 22.By switching the setting of switch 23, cost can be reduced.Optionally, switching switch 23 is single-pole double-throw switch (SPDT).
Further, the channel calibrating installation of the present embodiment can also include: processor, the processor is used to control connection, 4 groups of adjustable phase shifters of control and 4 four throw switches of hilted broadsword of calibrated channel and the first probe or the second probe according to preset rules, to carry out powering on transmitting calibration to beam scanning device, power on reception calibration, real time emission calibration or real-time reception calibration, preset rules are as follows: maximum relative to the symmetrical 4 feed phases of the first probe power that first probe receives when consistent；It is maximum relative to the symmetrical 4 feed phases of the second probe power that second probe receives when consistent；It is maximum relative to the symmetrical 4 feed phases of the first probe or the second probe signal that 4 radio-frequency channels receive when consistent synthesis power.
Channel calibrating installation provided in this embodiment, it is connect by setting calibrated channel and with calibrated channel, and it is placed on the first probe on subreflector and the second probe, first probe and the second probe can receive the signal of radio-frequency channel, signal can also be emitted to calibrate for radio-frequency channel, switch the connection of calibrated channel and the first probe or the second probe, adjust the adjustable phase shifter of radio-frequency channel, beam scanning device is carried out according to preset rules to power on transmitting calibration, power on reception calibration, real time emission calibration or real-time reception calibration, the signal phase of acquisition feed (antenna element) is not needed, without the calculating for carrying out complexity, it is easy to realize in the product.
3 detailed process for illustrating channel calibration method performed by processor with reference to the accompanying drawing.
Fig. 3 is the flow diagram of channel calibration method embodiment one provided by the present application, is mainly illustrated in the present embodiment to wave
Beam scanning device power on the process of transmitting calibration and real time emission calibration, wherein when carrying out powering on transmitting calibration or real time emission calibration, feed emits signal, and the first probe or the second probe receive the signal of feed transmitting.As shown in figure 3, this method comprises:
S101, beam scanning device is carried out to power on transmitting calibration according to relative to the symmetrical 4 feed phases of the first probe power that first probe receives when consistent maximum and relative to the symmetrical 4 feed phases of the second probe prominent rule that second probe receives when consistent.
Wherein, relative to symmetrical 4 feeds of the first probe, for the square feed array 14 of 16 feeds composition shown in Fig. 1, as 4-7-10-13 this 4 feeds relative to the first probe symmetrical, 1-6-11-16；2-5-12-15；Tri- groups of 4 feeds of 3-9-8-14 are symmetrical also relative to the first probe.The center of the array of 4 feeds composition of the arbitrary neighborhood of second probe, 22 face square feed array, it therefore is exactly adjacent 4 feed of 22 face of the second probe relative to symmetrical 4 feeds of the second probe, such as second probe face 1-2-3-4 this 4 feed, it is exactly this 4 feeds of 1-2-3-4 relative to symmetrical 4 feeds of the second probe.Illustrate by taking this 4 feeds of the second probe face 1-2-3-4 as an example in citing below.
Specifically, S101 can specifically include:
S1011, calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to corresponding first group 4 feeds nearest with square feed array center, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with first group of 4 feed receives the first probe, obtains the phase parameter value of first group of adjustable phase shifter corresponding with first group of 4 feed.
Specifically, for the square feed array 14 of the composition of 16 feeds shown in Fig. 1, calibrated channel is switched to the first probe of connection by switching switch, by 4 hilted broadsword four-throw switchings to corresponding this first group of 4 feed of 4-7-10-13, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with this 4 feeds of 4-7-10-13 receives the first probe, the phase parameter value of first group of adjustable phase shifter corresponding with this 4 feeds of 4-7-10-13 is obtained, 4-7-10-13 has same phase at this time.
S1012, by 4 hilted broadsword four-throw switchings to second group of 4 feed at corresponding square 4 angles of feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with second group of 4 feed receives the first probe, obtains the phase parameter value of second group of adjustable phase shifter corresponding with second group of 4 feed.
Specifically, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 1-6-11-16, it is maximum to adjust the power that corresponding adjustable phase shifter receives the first probe, obtains the phase parameter value of second group of adjustable phase shifter, 1-6-11-16 has same phase at this time.
S1013, by 4 feeds of the group of third up and down of 4 hilted broadsword four-throw switchings intermediate two column into corresponding square feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with 4 feeds of third group receives the first probe, obtains the phase parameter value of third group adjustable phase shifter corresponding with 4 feeds of third group.
Specifically, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 2-5-12-15, it is maximum to adjust the power that corresponding adjustable phase shifter receives the first probe, obtains the phase parameter value of third group adjustable phase shifter, 2-5-12-15 has same phase at this time.
S1014, by 4 feeds in the 4th group of left and right of 4 hilted broadsword four-throw switchings middle two rows into corresponding square feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with the 4th group of 4 feeds receives the first probe, obtains the phase parameter value of the 4th group of adjustable phase shifter corresponding with the 4th group of 4 feeds.
Specifically, 4 hilted broadsword four-throw switchings are adjusted into corresponding Adjustable Phase Shift to corresponding this 4 feeds of 3-9-8-14
The power that device receives the first probe is maximum, obtains the phase parameter value of the 4th group of adjustable phase shifter, 3-9-8-14 has same phase at this time.
S1015, calibrated channel is switched to the second probe of connection, by 4 hilted broadsword four-throw switchings into corresponding square feed array relative to symmetrical 5th group of 4 feeds of the second probe, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with the 5th group of 4 feeds receives the second probe, obtains the phase parameter value of the 5th group of adjustable phase shifter corresponding with the 5th group of 4 feeds.
Specifically, calibrated channel is switched to the second probe of connection by switching switch, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 1-2-3-4, it is maximum to adjust the power that corresponding adjustable phase shifter receives the second probe, the phase parameter value of the 5th group of adjustable phase shifter is obtained, 1-2-3-4 has same phase at this time.
S1016, the phase parameter value of the phase parameter value of first group of adjustable phase shifter, the phase parameter value of second group of adjustable phase shifter, the phase parameter value of third group adjustable phase shifter and the 4th group of adjustable phase shifter is corrected respectively according to the phase parameter value of the 5th group of adjustable phase shifter.
S102, when real time calibration trigger condition is triggered, according to 4 feed phases at square 4 angles of feed array when consistent first probe receive it is prominent rule to beam scanning device carry out real time emission calibration.
Specifically, real time calibration trigger condition is triggered, including reaches predetermined period triggered time or bit error rate decline.Reaching the predetermined period triggered time i.e. is exactly to carry out periodical real time calibration.
Wherein, S102 is specifically as follows:
S1021, calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to the 6th group of 4 feeds at 4 angles of corresponding square feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with the 6th group of 4 feeds receives the first probe, obtains the phase parameter value of the 6th group of adjustable phase shifter corresponding with the 6th group of 4 feeds.
Specifically, calibrated channel is switched to the first probe of connection by switching switch, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 1-6-11-16, the power maximum that corresponding adjustable phase shifter receives the first probe is adjusted, the phase parameter value of the 6th group of adjustable phase shifter is obtained.It is also possible to 2-5-4-7；5-6-7-8；3-4-9-10；4-7-10-13；7-8-13-14；9-10-11-12；10-13-12-15；Any group of 4 feeds in 13-14-15-16.
S1022, the real time correction value of each radio-frequency channel is obtained according to the phase parameter value of the 6th group of adjustable phase shifter, that is, can compensate for radio-frequency transmissions active circuitry region with the phase drift of temperature.
Channel calibration method provided in this embodiment, by the connection for switching calibrated channel and the first probe or the second probe, adjust the adjustable phase shifter of radio-frequency channel, beam scanning device is carried out to power on transmitting calibration and real time emission calibration according to relative to the symmetrical 4 feed phases of the first probe signal that 4 radio-frequency channels receive when consistent synthesis power maximum and relative to the symmetrical 4 feed phases of the second probe signal that 4 radio-frequency channels receive when consistent synthesis prominent rule, the signal phase of acquisition feed (antenna element) is not needed, without the calculating for carrying out complexity, it is easy to realize in the product.
Fig. 4 is the flow diagram of channel calibration method embodiment two provided by the present application, mainly illustrate to carry out powering on the process for receiving calibration and real-time reception calibration to beam scanning device in the present embodiment, wherein, when carrying out powering on reception calibration or real-time reception calibration, first probe or the second probe issue calibration signal, and feed receives calibration signal.As shown in figure 4, this method comprises:
S201, beam scanning device is carried out to power on reception calibration according to relative to the symmetrical 4 feed phases of the first probe signal that 4 radio-frequency channels receive when consistent synthesis power maximum and relative to the symmetrical 4 feed phases of the second probe signal that 4 radio-frequency channels receive when consistent synthesis prominent rule.
Wherein, relative to symmetrical 4 feeds of the first probe, for the square feed array 14 of 16 feeds composition shown in Fig. 1, as 4-7-10-13 this 4 feeds relative to the first probe symmetrical, 1-6-11-16；2-5-12-15；Tri- groups of 4 feeds of 3-9-8-14 are symmetrical also relative to the first probe.The center of the array of 4 feeds composition of the arbitrary neighborhood of second probe, 22 face square feed array, it therefore is exactly adjacent 4 feed of 22 face of the second probe relative to symmetrical 4 feeds of the second probe, such as second probe face 1-2-3-4 this 4 feed, it is exactly this 4 feeds of 1-2-3-4 relative to symmetrical 4 feeds of the second probe.Illustrate by taking this 4 feeds of the second probe face 1-2-3-4 as an example in citing below.
Specifically, S201 can specifically include:
S2011, the first probe of excitation issue calibration signal.
S2012, calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to corresponding first group 4 feeds nearest with square feed array center, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with first group of 4 feed receives 4 radio-frequency channels, obtains the phase parameter value of first group of adjustable phase shifter corresponding with first group of 4 feed.
Specifically, for the square feed array 14 of the composition of 16 feeds shown in Fig. 1, calibrated channel is switched to the first probe of connection by switching switch, by 4 hilted broadsword four-throw switchings to corresponding this first group of 4 feed of 4-7-10-13, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with this 4 feeds of 4-7-10-13 receives 4 radio-frequency channels, obtains the phase parameter value of first group of adjustable phase shifter corresponding with this 4 feeds of 4-7-10-13.
S2013, by 4 hilted broadsword four-throw switchings to second group of 4 feed at corresponding square 4 angles of feed array, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with second group of 4 feed receives 4 radio-frequency channels, obtains the phase parameter value of second group of adjustable phase shifter corresponding with second group of 4 feed.
Specifically, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 1-6-11-16, the signal synthesis power maximum that corresponding adjustable phase shifter receives 4 radio-frequency channels is adjusted, the phase parameter value of second group of adjustable phase shifter is obtained.
S2014, by 4 feeds of the group of third up and down of 4 hilted broadsword four-throw switchings intermediate two column into corresponding square feed array, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with 4 feeds of third group receives 4 radio-frequency channels, obtains the phase parameter value of third group adjustable phase shifter corresponding with 4 feeds of third group.
Specifically, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 2-5-12-15, the signal synthesis power maximum that corresponding adjustable phase shifter receives 4 radio-frequency channels is adjusted, the phase parameter value of third group adjustable phase shifter is obtained.
S2015, by 4 feeds in the 4th group of left and right of 4 hilted broadsword four-throw switchings middle two rows into corresponding square feed array, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with the 4th group of 4 feeds receives 4 radio-frequency channels, obtains the phase parameter value of the 4th group of adjustable phase shifter corresponding with the 4th group of 4 feeds.
Specifically, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 3-9-8-14, the signal synthesis power maximum that corresponding adjustable phase shifter receives 4 radio-frequency channels is adjusted, the phase parameter value of the 4th group of adjustable phase shifter is obtained.
S2016, calibrated channel being switched to the second probe of connection, the second probe of excitation issues calibration signal, by 4 hilted broadsword four-throw switchings into corresponding square feed array relative to symmetrical 5th group of 4 feeds of the second probe, adjustment and the
The signal synthesis power that adjustable phase shifter on corresponding 4 radio-frequency channels of five groups of 4 feeds receives 4 radio-frequency channels is maximum, obtains the phase parameter value of the 5th group of adjustable phase shifter corresponding with the 5th group of 4 feeds.
Specifically, calibrated channel is switched to the second probe of connection by switching switch, the second probe is motivated to issue calibration signal, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 1-2-3-4, it is maximum to adjust the signal synthesis power that corresponding adjustable phase shifter receives 4 radio-frequency channels, obtains the phase parameter value of the 5th group of adjustable phase shifter.
S2017, the phase parameter value of the phase parameter value of first group of adjustable phase shifter, the phase parameter value of second group of adjustable phase shifter, the phase parameter value of third group adjustable phase shifter and the 4th group of adjustable phase shifter is corrected respectively according to the phase parameter value of the 5th group of adjustable phase shifter.
S202, when real time calibration trigger condition is triggered, according to 4 feed phases at square 4 angles of feed array signal that 4 radio-frequency channels receive when consistent synthesis it is prominent rule to beam scanning device carry out real-time reception calibration.
Specifically, real time calibration trigger condition is triggered, including reaches predetermined period triggered time or bit error rate decline.Reaching the predetermined period triggered time i.e. is exactly to carry out periodical real time calibration.
Wherein, S202 is specifically as follows:
S2021, calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to corresponding 6th group of 4 feeds, the first probe is motivated to issue calibration signal simultaneously, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with the 6th group of 4 feeds receives 4 radio-frequency channels, obtains the phase parameter value of the 6th group of adjustable phase shifter corresponding with the 6th group of 4 feeds.
Specifically, calibrated channel is switched to the first probe of connection by switching switch, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 1-6-11-16, the first probe is motivated to issue calibration signal simultaneously, it is maximum to adjust the signal synthesis power that corresponding adjustable phase shifter receives 4 radio-frequency channels, obtains the phase parameter value of the 6th group of adjustable phase shifter.
S2022, the real time correction value of each radio-frequency channel is obtained according to the phase parameter value of the 6th group of adjustable phase shifter.Radio frequency reception active circuitry region be can compensate for the phase drift of temperature.
Channel calibration method provided in this embodiment, by the connection for switching calibrated channel and the first probe or the second probe, adjust the adjustable phase shifter of radio-frequency channel, beam scanning device is carried out to power on reception calibration and real-time reception calibration according to relative to the symmetrical 4 feed phases of the first probe signal that 4 radio-frequency channels receive when consistent synthesis power maximum and relative to the symmetrical 4 feed phases of the second probe signal that 4 radio-frequency channels receive when consistent synthesis prominent rule, the signal phase of acquisition feed (antenna element) is not needed, without the calculating for carrying out complexity, it is easy to realize in the product.
A specific embodiment is used below, and the channel calibration method of Fig. 3 and Fig. 4 are described in detail.Mainly illustrate to carry out powering on transmitting calibration to beam scanning device in the present embodiment, power on the process for receiving calibration, real time emission calibration and real-time reception calibration.
It is upper electric calibration first, including powers on transmitting calibration and power on reception calibration, for the square feed array 14 of the composition of 16 feeds shown in Fig. 1.
One, transmitting calibration is powered on
S301, calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to corresponding this first group of 4 feed of 4-7-10-13, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with this 4 feeds of 4-7-10-13 receives the first probe, the phase parameter value of first group of adjustable phase shifter corresponding with this 4 feeds of 4-7-10-13 is obtained, 4-7-10-13 has same phase at this time.
S302, similarly, according to symmetry, successively corrects 1-6-11-16；2-5-12-15；3-9-8-14 phase is consistent, so that the power that receives of the first probe is maximum, obtains the phase parameter value of second group of adjustable phase shifter, third group adjustable phase shifter
Phase parameter value, the phase parameter value of the 4th group of adjustable phase shifter.
S303, calibrated channel is switched to the second probe of connection, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 1-2-3-4, it is maximum to adjust the power that corresponding adjustable phase shifter receives the second probe, the phase parameter value of the 5th group of adjustable phase shifter is obtained, 1-2-3-4 has same phase at this time.
S304, the phase parameter value of the phase parameter value of first group of adjustable phase shifter, the phase parameter value of second group of adjustable phase shifter, the phase parameter value of third group adjustable phase shifter and the 4th group of adjustable phase shifter is corrected respectively according to the phase parameter value of the 5th group of adjustable phase shifter.
Two, reception calibration is powered on
S401, the first probe of excitation issue calibration signal.
S402, calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to corresponding this first group of 4 feed of 4-7-10-13, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with this 4 feeds of 4-7-10-13 receives 4 radio-frequency channels, the phase parameter value of first group of adjustable phase shifter corresponding with this 4 feeds of 4-7-10-13 is obtained, 4-7-10-13 has same phase at this time.
S403, similarly, according to symmetry, successively corrects 1-6-11-16；2-5-12-15；3-9-8-14 phase is consistent, so that the signal synthesis power that 4 radio-frequency channels receive is maximum, obtains the phase parameter value of second group of adjustable phase shifter, the phase parameter value of third group adjustable phase shifter, the phase parameter value of the 4th group of adjustable phase shifter.
S404, calibrated channel is switched to the second probe of connection, the second probe is motivated to issue calibration signal, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 1-2-3-4, it is maximum to adjust the signal synthesis power that corresponding adjustable phase shifter receives 4 radio-frequency channels, the phase parameter value of the 5th group of adjustable phase shifter is obtained, 1-2-3-4 has same phase at this time.
S405, the phase parameter value of the phase parameter value of first group of adjustable phase shifter, the phase parameter value of second group of adjustable phase shifter, the phase parameter value of third group adjustable phase shifter and the 4th group of adjustable phase shifter is corrected respectively according to the phase parameter value of the 5th group of adjustable phase shifter.
Followed by real time calibration, including real time emission calibration and real-time reception calibration.
One, real time emission is calibrated
S501, calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 1-6-11-16, it is maximum to adjust the power that corresponding adjustable phase shifter receives the first probe, obtains the phase parameter value of the 6th group of adjustable phase shifter.
S502, the real time correction value of each radio-frequency channel is obtained according to the phase parameter value of the 6th group of adjustable phase shifter, that is, can compensate for radio-frequency transmissions active circuitry region with the phase drift of temperature.
Two, real-time reception is calibrated
S601, calibrated channel is switched to the first probe of connection, by 4 hilted broadsword four-throw switchings to corresponding this 4 feeds of 1-6-11-16, the first probe is motivated to issue calibration signal simultaneously, it is maximum to adjust the signal synthesis power that corresponding adjustable phase shifter receives 4 radio-frequency channels, obtains the phase parameter value of the 6th group of adjustable phase shifter.
S602, the real time correction value of each radio-frequency channel is obtained according to the phase parameter value of the 6th group of adjustable phase shifter.Radio frequency reception active circuitry region be can compensate for the phase drift of temperature.
All the embodiments in this specification are described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments.For system embodiment, since it is substantially similar to the method embodiment, so being described relatively simple, the relevent part can refer to the partial explaination of embodiments of method.
It will be recognized by those of ordinary skill in the art that the various aspects of the application or the possibility implementation of various aspects can be embodied as system, method or computer program product.Therefore, the various aspects of the application or the possibility implementation of various aspects can use complete hardware embodiment, complete software embodiment (including firmware, resident software etc.), perhaps the form of the embodiment of integration software and hardware aspect collectively referred to herein as " circuit ", " module " or " system ".In addition, the various aspects of the application or the possibility implementation of various aspects can use the form of computer program product, computer program product refers to the computer readable program code of storage in computer-readable medium.
Computer-readable medium can be computer-readable signal media or computer readable storage medium.Computer readable storage medium is including but not limited to electronics, magnetism, optics, electromagnetism, infrared or semiconductor system, equipment or device, perhaps above-mentioned any appropriately combined such as random access memory (RAM), read-only memory (ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), optical fiber, portable read-only memory (CD-ROM).
Processor in computer reads the computer readable program code of storage in computer-readable medium, enables a processor to execute function action specified in the combination of each step or each step in flow charts；Generate the device for implementing defined function action in each block of the block diagram, or a combination of blocks.
Computer readable program code can execute completely on the local computer of user, partially execute on the local computer of user, as individual software package, partially on the local computer of user and part on the remote computer, or execute on a remote computer or server completely.It is also noted that in some alternative embodiments, each piece of function of indicating may not be occurred by the sequence indicated in figure in each step or block diagram in flow charts.For example, depending on related function, two steps or two blocks shown in succession may be actually executed substantially concurrently or these blocks may be sometimes performed with reverse order.
Claims (13)
- A kind of channel calibrating installation, it is characterized in that, for carrying out channel calibration to beam scanning device, the beam scanning device has primary reflection surface and subreflector, 4 radio-frequency channels, 4 groups of adjustable phase shifters being separately positioned in 4 radio-frequency channels, 16 feed square feed arrays formed and 4 four throw switches of hilted broadsword being separately positioned in 4 radio-frequency channels, the channel calibrating installation include:It calibrated channel and is connect with the calibrated channel and is placed on the first probe on the subreflector and the second probe, the calibrated channel includes radio frequency receiver, radiofrequency launcher and duplexer, the center of square feed array described in the first probe face, the center of the array of 4 feeds composition of the arbitrary neighborhood of square feed array described in the second probe face.
- The apparatus according to claim 1, which is characterized in that the channel calibrating installation further includes switching switch, and switching switch one end connects the duplexer, and the other end connects first probe and second probe.
- The apparatus of claim 2, which is characterized in that the switching switch is single-pole double-throw switch (SPDT).
- The apparatus according to claim 1, which is characterized in that first probe is used to receive the signal signal or transmitting calibration signal that perhaps transmitting calibration signal second probe emits for receiving the feed of the feed transmitting.
- The apparatus according to claim 1, which is characterized in that further include:Processor, for controlling the connection of the calibrated channel and first probe or second probe according to preset rules, controlling 4 groups of adjustable phase shifters and 4 hilted broadswords, four throw switch, calibrated with power on transmitting calibration to the beam scanning device, powering on reception calibration, real time emission calibration or real-time reception, the preset rules are as follows: relative to the symmetrical 4 feed phases of first probe when consistent described in the power that receives of the first probe it is maximum；Relative to the symmetrical 4 feed phases of second probe when consistent described in the power that receives of the second probe it is maximum；It is maximum relative to the symmetrical 4 feed phases of the first probe or the second probe signal that 4 radio-frequency channels receive when consistent synthesis power.
- A kind of channel calibration method, which is characterized in that in the described in any item channel calibrating installations of Claims 1 to 5, which comprisesAccording to relative to the symmetrical 4 feed phases of the first probe when consistent described in the power that receives of the first probe it is maximum and relative to the symmetrical 4 feed phases of the second probe when consistent described in the prominent rule that receives of the second probe the beam scanning device is carried out powering on transmitting calibration；When real time calibration trigger condition is triggered, according to 4 feed phases at square 4 angles of feed array when consistent described in the prominent rule that receives of the first probe real time emission calibration is carried out to the beam scanning device；Wherein, described power on transmitting calibration or when real time emission is calibrated, the feed emits signal, and first probe or second probe receive the signal of the feed transmitting.
- According to the method for claim 6, it is characterized in that, it is described according to relative to the symmetrical 4 feed phases of the first probe when consistent described in the power that receives of the first probe it is maximum and relative to the symmetrical 4 feed phases of the second probe when consistent described in the prominent rule that receives of the second probe the beam scanning device is carried out powering on transmitting calibration, comprising:The calibrated channel is switched to connection first probe, by 4 hilted broadsword four-throw switchings to corresponding first group 4 feeds nearest with the square feed array center, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with described first group of 4 feed receives first probe, obtains and described first group of 4 feed The phase parameter value of corresponding first group of adjustable phase shifter；By 4 hilted broadsword four-throw switchings to second group of 4 feed at 4 angles of the corresponding square feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with described second group of 4 feed receives first probe, obtains the phase parameter value of second group of adjustable phase shifter corresponding with described second group of 4 feed；By 4 feeds of the group of third up and down of 4 hilted broadsword four-throw switchings intermediate two column into the correspondence square feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with 4 feeds of the third group receives first probe, obtains the phase parameter value of third group adjustable phase shifter corresponding with 4 feeds of the third group；By 4 feeds in the 4th group of left and right of 4 hilted broadsword four-throw switchings middle two rows into the correspondence square feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with described 4th group of 4 feeds receives first probe, obtains the phase parameter value of the 4th group of adjustable phase shifter corresponding with described 4th group of 4 feeds；The calibrated channel is switched to connection second probe, by 4 hilted broadsword four-throw switchings into the correspondence square feed array relative to symmetrical 5th group of 4 feeds of second probe, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with described 5th group of 4 feeds receives second probe, obtains the phase parameter value of the 5th group of adjustable phase shifter corresponding with described 5th group of 4 feeds；The phase parameter value of the phase parameter value of first group of adjustable phase shifter, the phase parameter value of second group of adjustable phase shifter, the phase parameter value of third group adjustable phase shifter and the 4th group of adjustable phase shifter is corrected respectively according to the phase parameter value of the 5th group of adjustable phase shifter.
- According to the method for claim 6, it is characterized in that, it is described according to 4 feed phases at square 4 angles of feed array when consistent described in the prominent rule that receives of the first probe real time emission calibration is carried out to the beam scanning device, comprising:The calibrated channel is switched to connection first probe, by 4 hilted broadsword four-throw switchings to the 6th group of 4 feeds at 4 angles of the corresponding square feed array, it is maximum to adjust the power that the adjustable phase shifter on 4 radio-frequency channels corresponding with described 6th group of 4 feeds receives first probe, obtains the phase parameter value of the 6th group of adjustable phase shifter corresponding with described 6th group of 4 feeds；The real time correction value of each radio-frequency channel is obtained according to the phase parameter value of the 6th group of adjustable phase shifter.
- According to the described in any item methods of claim 6~8, which is characterized in that the real time calibration trigger condition is triggered, comprising:Reach predetermined period triggered time or bit error rate decline.
- A kind of channel calibration method, which is characterized in that in the described in any item channel calibrating installations of Claims 1 to 5, which comprisesThe beam scanning device is carried out to power on reception calibration according to relative to the symmetrical 4 feed phases of the first probe signal that 4 radio-frequency channels receive when consistent synthesis power maximum and relative to the symmetrical 4 feed phases of the second probe signal that 4 radio-frequency channels receive when consistent synthesis prominent rule；When real time calibration trigger condition is triggered, real-time reception calibration is carried out to the beam scanning device according to 4 feed phases at 4 angles of the square feed array prominent rule of signal synthesis that 4 radio-frequency channels receive when consistent；Wherein, described power on reception calibration or when real-time reception is calibrated, first probe or second probe are issued Calibration signal, the feed receive the calibration signal.
- According to the method for claim 10, it is characterized in that, the basis is maximum relative to the symmetrical 4 feed phases of the first probe signal that 4 radio-frequency channels receive when consistent synthesis power and carries out powering on reception calibration to the beam scanning device relative to the prominent rule of the symmetrical 4 feed phases of the second probe signal that 4 radio-frequency channels receive when consistent synthesis, comprising:First probe is motivated to issue calibration signal；The calibrated channel is switched to connection first probe, by 4 hilted broadsword four-throw switchings to corresponding first group 4 feeds nearest with the square feed array center, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with described first group of 4 feed receives 4 radio-frequency channels, obtains the phase parameter value of first group of adjustable phase shifter corresponding with described first group of 4 feed；By 4 hilted broadsword four-throw switchings to second group of 4 feed at 4 angles of the corresponding square feed array, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with described second group of 4 feed receives 4 radio-frequency channels, obtains the phase parameter value of second group of adjustable phase shifter corresponding with described second group of 4 feed；By 4 feeds of the group of third up and down of 4 hilted broadsword four-throw switchings intermediate two column into the correspondence square feed array, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with 4 feeds of the third group receives 4 radio-frequency channels, obtains the phase parameter value of third group adjustable phase shifter corresponding with 4 feeds of the third group；By 4 feeds in the 4th group of left and right of 4 hilted broadsword four-throw switchings middle two rows into the correspondence square feed array, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with described 4th group of 4 feeds receives 4 radio-frequency channels, obtains the phase parameter value of the 4th group of adjustable phase shifter corresponding with described 4th group of 4 feeds；The calibrated channel is switched to connection second probe, second probe is motivated to issue calibration signal, by 4 hilted broadsword four-throw switchings into the correspondence square feed array relative to symmetrical 5th group of 4 feeds of second probe, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with described 5th group of 4 feeds receives 4 radio-frequency channels, obtains the phase parameter value of the 5th group of adjustable phase shifter corresponding with described 5th group of 4 feeds；The phase parameter value of the phase parameter value of first group of adjustable phase shifter, the phase parameter value of second group of adjustable phase shifter, the phase parameter value of third group adjustable phase shifter and the 4th group of adjustable phase shifter is corrected respectively according to the phase parameter value of the 5th group of adjustable phase shifter.
- According to the method for claim 10, it is characterized in that, the prominent rule of signal synthesis that 4 radio-frequency channels receive when 4 feed phases according to 4 angles of the square feed array are consistent carries out real-time reception calibration to the beam scanning device, comprising:The calibrated channel is switched to connection first probe, by 4 hilted broadsword four-throw switchings to corresponding described 6th group of 4 feeds, first probe is motivated to issue calibration signal simultaneously, it is maximum to adjust the signal synthesis power that the adjustable phase shifter on 4 radio-frequency channels corresponding with described 6th group of 4 feeds receives 4 radio-frequency channels, obtains the phase parameter value of the 6th group of adjustable phase shifter corresponding with described 6th group of 4 feeds；The real time correction value of each radio-frequency channel is obtained according to the phase parameter value of the 6th group of adjustable phase shifter.
- 0~12 described in any item methods according to claim 1, which is characterized in that the real time calibration trigger condition is triggered, comprising:Reach predetermined period triggered time or bit error rate decline.
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| CN112073097A (en) * | 2020-08-20 | 2020-12-11 | 东南大学 | Self-calibration device for hybrid beam forming receiving array |
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