CN107465466A - A kind of detection method and device of antenna calibration - Google Patents
A kind of detection method and device of antenna calibration Download PDFInfo
- Publication number
- CN107465466A CN107465466A CN201610395067.9A CN201610395067A CN107465466A CN 107465466 A CN107465466 A CN 107465466A CN 201610395067 A CN201610395067 A CN 201610395067A CN 107465466 A CN107465466 A CN 107465466A
- Authority
- CN
- China
- Prior art keywords
- antenna
- phase
- amplitude
- deviation
- calibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
- H04B17/17—Detection of non-compliance or faulty performance, e.g. response deviations
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of detection method and device of antenna calibration, wherein method includes：TCH test channel is chosen from the receiving channel of the transmission channel of the transmitting chain of antenna or receives link；Control vector network analyzer to send initial signal to the TCH test channel, and control vector network analyzer to get the test signal obtained by the TCH test channel；The parameter of parameter and the test signal based on the initial signal, determines parameter error corresponding to the TCH test channel；Parameter error corresponding to whole transmission channels of transmitting chain and receives link based on the antenna, determines whether the antenna calibration succeeds.
Description
Technical field
The present invention relates to the antenna calibration technology in the communications field, more particularly to a kind of detection side of antenna calibration
Method and device.
Background technology
At present, for base station antenna calibration result test mode, mainly have：Utilize antenna calibration sequence
Send and receive, and carry out channel estimation, according to the result of channel estimation, judge antenna calibration whether just
Often.But whether above-mentioned this test mode can only to measure antenna calibration state normal, can not but give
Go out definite calibration value, such as, specific error condition can not be provided.
For above-mentioned calibration result test it is not accurate enough the problem of, could only be solved by using instrument measurement
Certainly, therefore, generally use following scheme at present：The measurement of up-link calibration result is analyzed using multiple signals
Instrument, but multiple signals analyzer only supports 8 road signals, it can be seen that entered using multiple signals analyzer
In place of measurement Shortcomings of the method for row analysis for array antenna, the calibration result of up-link is by base station
Own analysis is completed, and this scheme is not strong for detection side's objectivity.The test of descending calibration result by base station from
Row transmiting signal source, multi-channel measurement instrument be measured simultaneously.Base station is needed voluntarily to send source signal
And Multi-channel signal analysis instrument is relied on, and the increase with antenna amount and uncertain, multi channel signals point
The exploitation of analyzer table is difficult to keep up with, and cost can double.
It can be seen that the test mode for antenna calibration result provided in the prior art can not ensure test result
Objectivity, and can also have the more problem in efficiency and cost.
The content of the invention
In view of this, can be extremely it is an object of the invention to provide a kind of detection method and device of antenna calibration
Solves the above-mentioned problems in the prior art less.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
The embodiments of the invention provide a kind of detection method of antenna calibration, methods described includes：
TCH test channel is chosen from the receiving channel of the transmission channel of the transmitting chain of antenna or receives link；
Control vector network analyzer to send initial signal to the TCH test channel, and control vector network
Analyzer gets the test signal obtained by the TCH test channel；
The parameter of parameter and the test signal based on the initial signal, determines the TCH test channel pair
The parameter error answered；
Parameter error corresponding to whole transmission channels of transmitting chain and receives link based on the antenna,
Determine whether the antenna calibration succeeds.
The embodiments of the invention provide a kind of detection means of antenna calibration, described device includes：
Switch matrix unit, for the transmission channel of the transmitting chain from antenna or the receiving channel of receives link
Middle selection TCH test channel；
Control unit, for controlling vector network analyzer to send initial signal to the TCH test channel, and
And control vector network analyzer gets the test signal obtained by the TCH test channel；
Authentication unit, for the parameter based on the initial signal and the parameter of the test signal, it is determined that
Parameter error corresponding to the TCH test channel；The whole of transmitting chain and receives link based on the antenna
Parameter error corresponding to transmission channel, determines whether the antenna calibration succeeds.
The embodiments of the invention provide the detection method and device of antenna calibration, can choose TCH test channel
Afterwards, the parameter of the measurement signal received of initial signal is measured using vector network analyzer, and
Whether the calibration for determining antenna based on the parameter error between two signals succeeds.In this way, it ensure that all
Measurement for signal is completed by instrument, adds the objectivity of the checking for calibration, and can also
Enough avoid using multimeter entering in the prior art the test of multiple passages in line link, so as to avoid
Waste in cost.
Brief description of the drawings
Fig. 1 is the detection method schematic flow sheet of antenna calibration of the embodiment of the present invention；
Fig. 2 is transmitting chain schematic diagram in the detection of antenna calibration of the embodiment of the present invention；
Fig. 3 is the processing block diagram that the embodiment of the present invention is verified；
Fig. 4 is receives link schematic diagram in the detection of antenna calibration of the embodiment of the present invention；
Fig. 5 is the detection means logical schematic of antenna calibration of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further described in more detail.
Embodiment one,
The embodiments of the invention provide a kind of detection method of antenna calibration, as shown in figure 1, including：
Step 101：Choose and survey from the receiving channel of the transmission channel of the transmitting chain of antenna or receives link
Ping；
Step 102：Control vector network analyzer to send initial signal to the TCH test channel, and control
Vector network analyzer gets the test signal obtained by the TCH test channel；
Step 103：The parameter of parameter and the test signal based on the initial signal, it is determined that described
Parameter error corresponding to TCH test channel；
Step 104：Corresponding to whole transmission channels of transmitting chain and receives link based on the antenna
Parameter error, determines whether the antenna calibration succeeds.
It can provide for how carrying out antenna calibration and be described as follows：In physics realization, every antenna
Radio-frequency head needs two sets of circuits to be respectively completed sending and receiving for signal, and this two sets of circuits are difficult to have completely
The same characteristic, which results in the heterogeneite of channel to be damaged, and antenna calibration can realize the heterogeneite of signal.
Antenna calibration function can realize the amplitude and phase equalization between multi-path receiver or sender.
, it is necessary to further verify the result of antenna calibration after the operation of above-mentioned antenna calibration is completed, with
The increase of antenna amount, the measurement of antenna calibration result becomes more complicated and important, it is necessary to a kind of visitor
Feasible method is seen to verify the method for antenna calibration result.
In above-described embodiment, the antenna can be the antenna in base station, that is to say, that antenna can obtain
Function to base station equipment is supported；Sending signal to TCH test channel and get test signal to pass through
Vector network analyzer is completed；The operation for choosing TCH test channel can be by the switch matrix that pre-sets
Realize；The parameter of initial signal such as phase and amplitude parameter, can pass through adjustable phase shifter and decay
Device is realized；In addition, the main body that the present embodiment performs verification method can be the electronics for possessing analysis ability
Equipment, for example can be PC (PC), or, can also be server in network etc.,
Here it is not limited thereof.
Specifically, base station equipment needs to realize the data between calibrated channel and normal channel in baseband portion
Distribution；
Vector network analyzer measures the amplitude and phase difference of input port and output port.
Switch matrix, realize the gating of transmission channel；
Adjustable phase shifter and attenuator, for setting known phase and decay；
PC (PC) realizes automatic test, to base station, vector network analyzer, cubicle switchboard
The state of battle array, adjustable phase shifter and attenuator is configured.
Checking flow is described in detail with reference to above-mentioned entity：
Illustrated with reference to Fig. 2 for the testing process of the antenna calibration of transmitting chain：
The path of signal can be as shown in black line most thick in figure, vector network analyzer port Port1
It is connected with calibration interface, transmits a signal to calibration and receive passage, calibration receives passage by the signal received in base band
Each normal transmission link is forwarded to, the point of forwarding is needed before calibration factor A additions.Wherein,
Only when the point of forwarding is before calibration factor, the information that PORT 2 is received is only containing calibration factor
Information, just it is able to verify that the result of calibration.
Before the transmission initial signal to TCH test channel, in addition to：The initial signal is entered line amplitude with
And phase is set；Accordingly, it is described to get the test signal obtained by the TCH test channel, including：
Get the test signal obtained by the TCH test channel, and obtain amplitude corresponding to the test signal with
And phase.
Specifically：Initial signal passes through test by the TCH test channel for choosing to obtain in normal transmission link
Mouth is connected with the subport of switch matrix (switch matrix more than 1 pair), the master port and arrow of switch matrix
The Port2 of amount Network Analyzer is connected, and signal returns to vector network analyzer.Vector network analyzer is surveyed
S21 parameters are measured, obtain its amplitude and phase, PC records measurement result, switch matrix state and adjustable
Phase shifter；
Then can control and choose next TCH test channel, i.e., by PC control matrix switch Inverse problem to
The passage 2 of transmitting chain is used as TCH test channel, and adjusts embedded adjustable phase shifter to adjust initial signal
Phase and amplitude, vector network analyzer carry out S21 measurements, continue other passages successively.It is all
After the completion of lane testing, PC analyze data results, conclusion is provided.
PC analysis process is as follows：The parameter based on the initial signal and the test signal
Parameter, parameter error corresponding to the TCH test channel is determined, including：
The amplitude error between the amplitude of the initial signal and the amplitude of the test signal is calculated
Value, is calculated the phase deviation between the phase of the initial signal and the phase of the test signal；
Using the amplitude error and the phase deviation as parameter error corresponding to the TCH test channel.
Parameter corresponding to whole transmission channels of the transmitting chain and receives link based on the antenna is inclined
Difference, determines whether the antenna calibration succeeds, including：Whole transmittings of transmitting chain based on the antenna
Parameter error corresponding to passage, determines whether the transmitting chain calibration of the antenna succeeds；And based on described
Parameter error corresponding to whole receiving channels of the receives link of antenna, determine the receives link school of the antenna
Whether standard succeeds.
Whether calibrate and successfully judge referring to following processing for the transmitting chain of the antenna：
Parameter error corresponding to whole transmission channels of the transmitting chain based on the antenna, it is determined that described
Whether the transmitting chain calibration of antenna succeeds, including：Get whole transmittings of the transmitting chain of the antenna
Amplitude peak deviation corresponding to passage and minimum radius deviation, amplitude peak deviation and institute is calculated
The Magnitude Difference between minimum radius deviation is stated, judges whether the Magnitude Difference is less than amplitude predetermined threshold value,
If it is less than, it is determined that the amplitude calibration success of the transmitting chain of the antenna；Get the transmitting of the antenna
Maximum skew and minimum phase deviation, are calculated maximum corresponding to whole transmission channels of link
Phase difference value between phase deviation and the minimum phase deviation, judges whether the phase difference value is less than
Phase preset threshold value, if being less than, it is determined that the phase alignment success of the transmitting chain of the antenna.
Referring to Fig. 3, the result and phase shifter, adjustable damping of measurement are recorded in the grid of grey twill
The preset value of device, that is to say, that phase and range value corresponding to each TCH test channel are recorded, and
The phase and range value of initial signal are determined based on phase shifter and adjustable attenuator；
Made the difference by measured value and preset value, amplitude error and the phase that each passage is calculated are inclined
Difference, amplitude error and phase deviation are filled up to grey box.According to the deviation of each passage, using entangling
On the occasion of maximum and minimum value difference, obtain inter-channel level deviation A1 and inter-channel phase deviation
A2.According to default amplitude error thresholding th1 and phase deviation th2, if A1 is more than th1, right
The orange inframe answered shows FAIL, otherwise shows PASS.If A2 is more than th2, in thick lines inframe
Display the result otherwise shows the result for calibration failure (PASS) to calibrate successfully (FAIL).
The detection testing process of receives link antenna calibration：
It may refer to Fig. 4, vector network analyzer port Port2 and adjustable phase shifter, adjustable attenuator
It is connected, PC controlling switch matrixes, gates receiving channel 1, signal is by normally receiving passage 1, in base
Band is forwarded to calibration transmission channel, and calibrated channel interface connects with 1 port of vector network analyzer,
Signal returns to vector network analyzer.Vector network analyzer measures S12 parameters, obtains its amplitude and phase
The numerical value of position, PC record measurement results, matrix switch state and adjustable phase shifter.PC control matrixes are opened
Concern changes to passage 2, and adjusts the value of embedded adjustable phase shifter and adjustable attenuator, vector network point
Analyzer carries out S12 measurements, continues other passages successively.After the completion of all lane testings, PC analysis numbers
According to result, conclusion is provided.
PC analysis process is as follows：The parameter based on the initial signal and the test signal
Parameter, parameter error corresponding to the TCH test channel is determined, including：
The amplitude error between the amplitude of the initial signal and the amplitude of the test signal is calculated
Value, is calculated the phase deviation between the phase of the initial signal and the phase of the test signal；
Using the amplitude error and the phase deviation as parameter error corresponding to the TCH test channel.
Parameter corresponding to whole transmission channels of the transmitting chain and receives link based on the antenna is inclined
Difference, determines whether the antenna calibration succeeds, including：Whole transmittings of transmitting chain based on the antenna
Parameter error corresponding to passage, determines whether the transmitting chain calibration of the antenna succeeds；And based on described
Parameter error corresponding to whole receiving channels of the receives link of antenna, determine the receives link school of the antenna
Whether standard succeeds.
Whether calibrate and successfully judge referring to following processing for the transmitting chain of the antenna：
Parameter error corresponding to whole transmission channels of the transmitting chain based on the antenna, it is determined that described
Whether the transmitting chain calibration of antenna succeeds, including：Get whole receptions of the receives link of the antenna
Amplitude peak deviation corresponding to passage and minimum radius deviation, amplitude peak deviation and institute is calculated
The Magnitude Difference between minimum radius deviation is stated, judges whether the Magnitude Difference is less than amplitude predetermined threshold value,
If it is less than, it is determined that the amplitude calibration success of the receives link of the antenna；
Get maximum skew corresponding to whole receiving channels of the receives link of the antenna and most
Small phase deviation, the phase difference value between maximum skew and the minimum phase deviation is calculated,
Judge whether the phase difference value is less than phase preset threshold value, if being less than, it is determined that the reception of the antenna
The phase alignment success of link.
Fig. 3 is equally may refer to, the result and phase shifter of measurement are recorded in gray bar grid, is decayed
The preset value of device.Made the difference by measured value and preset value, calculate amplitude error, phase deviation, amplitude is inclined
Difference and phase deviation are write in grey box.According to the amplitude error of each passage, phase deviation, using entangling
On the occasion of maximum and minimum value difference, obtain inter-channel level deviation A1 and inter-channel phase deviation
A2.According to default amplitude error thresholding th1 and phase deviation th2, if A1 is more than th3, right
The orange inframe answered shows FAIL, otherwise shows PASS.If A2 is more than th4, in corresponding orange
Inframe shows FAIL, otherwise shows PASS.
It is understood that for the passage of receives link and for the logical of transmitting chain in the present embodiment
The amplitude predetermined threshold value and phase preset threshold value in road can be different, that is to say, that, it is assumed that reception chain
The amplitude predetermined threshold value of the passage on road can be the first amplitude predetermined threshold value, then transmitting chain leads to
The amplitude predetermined threshold value in road could be arranged to the second amplitude predetermined threshold value；Accordingly, receives link
The phase preset threshold value of passage can be first phase predetermined threshold value, the phase of the passage of transmitting chain
Predetermined threshold value can be second phase predetermined threshold value.
It can be seen that by using such scheme, it becomes possible to choose to after TCH test channel, using vector network
The parameter of the measurement signal received of analyzer measurement initial signal, and based between two signals
Parameter error determines whether the calibration of antenna succeeds.In this way, ensure that all measurements for signal by
Instrument is completed, and adds the objectivity of the checking for calibration, and can also avoid adopting in the prior art
Enter the test of multiple passages in line link with multimeter, so as to avoid the waste in cost.
Embodiment two,
The embodiments of the invention provide a kind of detection means of antenna calibration, as shown in figure 5, described device
Including：
Switch matrix unit 51, lead to for the transmission channel of the transmitting chain from antenna or the reception of receives link
TCH test channel is chosen in road；
Control unit 52, for controlling vector network analyzer to send initial signal to the TCH test channel,
And vector network analyzer is controlled to get the test signal obtained by the TCH test channel；
Authentication unit 53, for the parameter based on the initial signal and the parameter of the test signal, really
Parameter error corresponding to the fixed TCH test channel；Transmitting chain and receives link based on the antenna it is complete
Parameter error corresponding to portion's transmission channel, determines whether the antenna calibration succeeds.
It can provide for how carrying out antenna calibration and be described as follows：In physics realization, every antenna
Radio-frequency head needs two sets of circuits to be respectively completed sending and receiving for signal, and this two sets of circuits are difficult to have completely
The same characteristic, which results in the heterogeneite of channel to be damaged, and antenna calibration can realize the heterogeneite of signal.
Antenna calibration function can realize the amplitude and phase equalization between multi-path receiver or sender.
, it is necessary to further verify the result of antenna calibration after the operation of above-mentioned antenna calibration is completed, with
The increase of antenna amount, the measurement of antenna calibration result becomes more complicated and important, it is necessary to a kind of visitor
Feasible method is seen to verify the method for antenna calibration result.
In above-described embodiment, the antenna can be the antenna in base station, that is to say, that antenna can obtain
Function to base station equipment is supported；Sending signal to TCH test channel and get test signal to pass through
Vector network analyzer is completed；The operation for choosing TCH test channel can be by the switch matrix that pre-sets
Realize；The parameter of initial signal such as phase and amplitude parameter, can pass through adjustable phase shifter and decay
Device is realized；In addition, the main body that the present embodiment performs verification method can be the electronics for possessing analysis ability
Equipment, for example can be PC (PC), or, can also be server in network etc.,
Here it is not limited thereof.
Specifically, base station equipment needs to realize the data between calibrated channel and normal channel in baseband portion
Distribution；
Vector network analyzer measures the amplitude and phase difference of input port and output port.
Switch matrix, realize the gating of transmission channel；
Adjustable phase shifter and attenuator, for setting known phase and decay；
PC (PC) realizes automatic test, to base station, vector network analyzer, cubicle switchboard
The state of battle array, adjustable phase shifter and attenuator is configured.
It is understood that device described in the present embodiment can be PC, or, can be in PC
Some processing unit, is not limited thereof here.
Illustrated with reference to Fig. 2 for the testing process of the antenna calibration of transmitting chain：
The path of signal can be as shown in black line most thick in figure, vector network analyzer port Port1
It is connected with calibration interface, transmits a signal to calibration and receive passage, calibration receives passage by the signal received in base band
Each normal transmission link is forwarded to, the point of forwarding is needed before calibration factor A is turned in.
Before the transmission initial signal to TCH test channel, in addition to：Described control unit, it can be also used for
Line amplitude is entered to the initial signal by adjustable attenuator and phase shifter and phase is set；Accordingly,
Described control unit, for getting the test signal obtained by the TCH test channel, and obtain the survey
Amplitude corresponding to trial signal and phase.
It should be noted that above-mentioned control unit enters line amplitude and phase by adjustable attenuator and phase shifter
The processing that position is set, can be by the adjustable attenuator and phase shifter that are arranged in the present apparatus, or
Pass through the adjustable attenuator and phase shifter being not disposed within device.
Specifically：Initial signal passes through test by the TCH test channel for choosing to obtain in normal transmission link
Mouth is connected with the subport of switch matrix (switch matrix more than 1 pair), the master port and arrow of switch matrix
The Port2 of amount Network Analyzer is connected, and signal returns to vector network analyzer.Vector network analyzer is surveyed
S21 parameters are measured, obtain its amplitude and phase, PC records measurement result, switch matrix state and adjustable
The numerical value of phase shifter and attenuator；
Then can control and choose next TCH test channel, i.e., by PC control matrix switch Inverse problem to
The passage 2 of transmitting chain is used as TCH test channel, and adjusts embedded adjustable phase shifter to adjust initial signal
Phase and amplitude, vector network analyzer carry out S21 measurements, continue other passages successively.It is all
After the completion of lane testing, PC analyze data results, conclusion is provided.
PC analysis process is as follows：The authentication unit, for the amplitude of the initial signal to be calculated
And the amplitude error value between the amplitude of the test signal, be calculated the phase of the initial signal with
And the phase deviation between the phase of the test signal；The amplitude error and the phase deviation are made
For parameter error corresponding to the TCH test channel.
The authentication unit, for parameter corresponding to whole transmission channels of the transmitting chain based on the antenna
Deviation, determines whether the transmitting chain calibration of the antenna succeeds；And the receives link based on the antenna
Whole receiving channels corresponding to parameter error, determine the antenna receives link calibration whether succeed.
Whether calibrate and successfully judge referring to following processing for the transmitting chain of the antenna：
The authentication unit, for corresponding to the whole transmission channels for the transmitting chain for getting the antenna most
Significantly deviation and minimum radius deviation, are calculated amplitude peak deviation and the minimum radius is inclined
Magnitude Difference between difference, judges whether the Magnitude Difference is less than amplitude predetermined threshold value, if being less than,
Determine the amplitude calibration success of the transmitting chain of the antenna；Get the whole of the transmitting chain of the antenna
Maximum skew corresponding to transmission channel and minimum phase deviation, be calculated maximum skew with
And the phase difference value between the minimum phase deviation, judge whether the phase difference value is less than phase preset door
Limit value, if being less than, it is determined that the phase alignment success of the transmitting chain of the antenna.
Referring to Fig. 3, the result and phase shifter, adjustable damping of measurement are recorded in the grid of grey twill
The preset value of device, that is to say, that phase and range value corresponding to each TCH test channel are recorded, and
The phase and range value of initial signal are determined based on phase shifter and adjustable attenuator；
Made the difference by measured value and preset value, amplitude error and the phase that each passage is calculated are inclined
Difference, amplitude error and phase deviation are filled up to grey box.According to the deviation of each passage, using entangling
On the occasion of maximum and minimum value difference, obtain inter-channel level deviation A1 and inter-channel phase deviation
A2.According to default amplitude error thresholding th1 and phase deviation th2, if A1 is more than th1, right
The orange inframe answered shows FAIL, otherwise shows PASS.If A2 is more than th2, in thick lines inframe
Display the result otherwise shows the result for calibration failure (PASS) to calibrate successfully (FAIL).
The detection testing process of receives link antenna calibration：
It may refer to Fig. 4, vector network analyzer port Port2 and adjustable phase shifter, adjustable attenuator
It is connected, PC controlling switch matrixes, gates receiving channel 1, signal is by normally receiving passage 1, in base
Band is forwarded to calibration transmission channel, and calibrated channel interface connects with 1 port of vector network analyzer,
Signal returns to vector network analyzer.Vector network analyzer measures S12 parameters, obtains its amplitude and phase
The numerical value of position, PC record measurement results, matrix switch state and adjustable phase shifter.PC control matrixes are opened
Concern changes to passage 2, and adjusts the value of embedded adjustable phase shifter and adjustable attenuator, vector network point
Analyzer carries out S12 measurements, continues other passages successively.After the completion of all lane testings, PC analysis numbers
According to result, conclusion is provided.
PC analysis process is as follows：The authentication unit, for the amplitude of the initial signal to be calculated
And the amplitude error value between the amplitude of the test signal, be calculated the phase of the initial signal with
And the phase deviation between the phase of the test signal；The amplitude error and the phase deviation are made
For parameter error corresponding to the TCH test channel.
The authentication unit, for parameter corresponding to whole transmission channels of the transmitting chain based on the antenna
Deviation, determines whether the transmitting chain calibration of the antenna succeeds；And the receives link based on the antenna
Whole receiving channels corresponding to parameter error, determine the antenna receives link calibration whether succeed.
Whether calibrate and successfully judge referring to following processing for the transmitting chain of the antenna：
The authentication unit, for corresponding to the whole receiving channels for the receives link for getting the antenna most
Significantly deviation and minimum radius deviation, are calculated amplitude peak deviation and the minimum radius is inclined
Magnitude Difference between difference, judges whether the Magnitude Difference is less than amplitude predetermined threshold value, if being less than,
Determine the amplitude calibration success of the receives link of the antenna；
Get maximum skew corresponding to whole receiving channels of the receives link of the antenna and most
Small phase deviation, the phase difference value between maximum skew and the minimum phase deviation is calculated,
Judge whether the phase difference value is less than phase preset threshold value, if being less than, it is determined that the reception of the antenna
The phase alignment success of link.
Fig. 3 is equally may refer to, the result and phase shifter of measurement are recorded in gray bar grid, is decayed
The preset value of device.Made the difference by measured value and preset value, calculate amplitude error, phase deviation, amplitude is inclined
Difference and phase deviation are write in grey box.According to the amplitude error of each passage, phase deviation, using entangling
On the occasion of maximum and minimum value difference, obtain inter-channel level deviation A1 and inter-channel phase deviation
A2.According to default amplitude error thresholding th1 and phase deviation th2, if A1 is more than th3, right
The orange inframe answered shows FAIL, otherwise shows PASS.If A2 is more than th4, in corresponding orange
Inframe shows FAIL, otherwise shows PASS.
It is understood that for the passage of receives link and for the logical of transmitting chain in the present embodiment
The amplitude predetermined threshold value and phase preset threshold value in road can be different, that is to say, that, it is assumed that reception chain
The amplitude predetermined threshold value of the passage on road can be the first amplitude predetermined threshold value, then transmitting chain leads to
The amplitude predetermined threshold value in road could be arranged to the second amplitude predetermined threshold value；Accordingly, receives link
The phase preset threshold value of passage can be first phase predetermined threshold value, the phase of the passage of transmitting chain
Predetermined threshold value can be second phase predetermined threshold value.
It can be seen that by using such scheme, it becomes possible to choose to after TCH test channel, using vector network
The parameter of the measurement signal received of analyzer measurement initial signal, and based between two signals
Parameter error determines whether the calibration of antenna succeeds.In this way, ensure that all measurements for signal by
Instrument is completed, and adds the objectivity of the checking for calibration, and can also avoid adopting in the prior art
Enter the test of multiple passages in line link with multimeter, so as to avoid the waste in cost.
If described in the embodiment of the present invention integrate module realized in the form of software function module and as
Independent production marketing in use, can also be stored in a computer read/write memory medium.Base
In such understanding, the technical scheme of the embodiment of the present invention substantially contributes to prior art in other words
Part can be embodied in the form of software product, the computer software product is stored in a storage
In medium, including some instructions are make it that a computer equipment (can be personal computer, network
Equipment or the network equipment etc.) perform all or part of each embodiment methods described of the present invention.And
Foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or
CD etc. is various can be with the medium of store program codes.So, the embodiment of the present invention is not restricted to any spy
Fixed hardware and software combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the protection model of the present invention
Enclose.
Claims (12)
1. a kind of detection method of antenna calibration, it is characterised in that methods described includes：
TCH test channel is chosen from the receiving channel of the transmission channel of the transmitting chain of antenna or receives link；
Control vector network analyzer to send initial signal to the TCH test channel, and control vector network
Analyzer gets the test signal obtained by the TCH test channel；
The parameter of parameter and the test signal based on the initial signal, determines the TCH test channel pair
The parameter error answered；
Parameter error corresponding to whole transmission channels of transmitting chain and receives link based on the antenna,
Determine whether the antenna calibration succeeds.
2. according to the method for claim 1, it is characterised in that described get is led to by the test
The test signal that road obtains, including：
The test signal obtained by the TCH test channel is got, and obtains width corresponding to the test signal
Degree and phase.
3. according to the method for claim 2, it is characterised in that the ginseng based on the initial signal
The parameter of several and described test signal, parameter error corresponding to the TCH test channel is determined, including：
The amplitude error between the amplitude of the initial signal and the amplitude of the test signal is calculated
Value, is calculated the phase deviation between the phase of the initial signal and the phase of the test signal；
Using the amplitude error and the phase deviation as parameter error corresponding to the TCH test channel.
4. according to the method for claim 1, it is characterised in that the transmitting chain based on the antenna
Parameter error corresponding to whole transmission channels of road and receives link, determines whether the antenna calibration succeeds,
Including：
Parameter error corresponding to whole transmission channels of transmitting chain based on the antenna, determines the antenna
Transmitting chain calibration whether succeed；And whole receiving channels of the receives link based on the antenna are corresponding
Parameter error, determine the antenna receives link calibration whether succeed.
5. according to the method for claim 4, it is characterised in that the transmitting chain based on the antenna
Parameter error corresponding to whole transmission channels on road, determines whether the transmitting chain calibration of the antenna succeeds,
Including：
Get amplitude peak deviation corresponding to whole transmission channels of the transmitting chain of the antenna and most
Deviation by a small margin, the Magnitude Difference between amplitude peak deviation and the minimum radius deviation is calculated,
Judge whether the Magnitude Difference is less than amplitude predetermined threshold value, if being less than, it is determined that the transmitting of the antenna
The amplitude calibration success of link；
Get maximum skew corresponding to whole transmission channels of the transmitting chain of the antenna and most
Small phase deviation, the phase difference value between maximum skew and the minimum phase deviation is calculated,
Judge whether the phase difference value is less than phase preset threshold value, if being less than, it is determined that the transmitting of the antenna
The phase alignment success of link.
6. according to the method for claim 4, it is characterised in that the reception chain based on the antenna
Parameter error corresponding to whole receiving channels on road, determines whether the receives link calibration of the antenna succeeds,
Including：
Get amplitude peak deviation corresponding to whole receiving channels of the receives link of the antenna and most
Deviation by a small margin, the Magnitude Difference between amplitude peak deviation and the minimum radius deviation is calculated,
Judge whether the Magnitude Difference is less than amplitude predetermined threshold value, if being less than, it is determined that the reception of the antenna
The amplitude calibration success of link；
Get maximum skew corresponding to whole receiving channels of the receives link of the antenna and most
Small phase deviation, the phase difference value between maximum skew and the minimum phase deviation is calculated,
Judge whether the phase difference value is less than phase preset threshold value, if being less than, it is determined that the reception of the antenna
The phase alignment success of link.
7. a kind of detection means of antenna calibration, it is characterised in that described device includes：
Switch matrix unit, for the transmission channel of the transmitting chain from antenna or the receiving channel of receives link
Middle selection TCH test channel；
Control unit, for controlling vector network analyzer to send initial signal to the TCH test channel, and
And control vector network analyzer gets the test signal obtained by the TCH test channel；
Authentication unit, for the parameter based on the initial signal and the parameter of the test signal, it is determined that
Parameter error corresponding to the TCH test channel；The whole of transmitting chain and receives link based on the antenna
Parameter error corresponding to transmission channel, determines whether the antenna calibration succeeds.
8. device according to claim 7, it is characterised in that described control unit, for passing through
Adjustable attenuator and phase shifter enter line amplitude to the initial signal and phase is set；And get logical
The test signal that the TCH test channel obtains is crossed, and obtains amplitude and phase corresponding to the test signal.
9. device according to claim 8, it is characterised in that the authentication unit, for calculating
To the initial signal amplitude and the test signal amplitude between amplitude error value, be calculated
Phase deviation between the phase of the phase of the initial signal and the test signal；The amplitude is inclined
Poor and described phase deviation is as parameter error corresponding to the TCH test channel.
10. device according to claim 7, it is characterised in that the authentication unit, for based on
Parameter error corresponding to whole transmission channels of the transmitting chain of the antenna, determine the transmitting chain of the antenna
Whether road calibration succeeds；And parameter corresponding to whole receiving channels of the receives link based on the antenna is inclined
Difference, determines whether the receives link calibration of the antenna succeeds.
11. device according to claim 10, it is characterised in that
The authentication unit, for corresponding to the whole transmission channels for the transmitting chain for getting the antenna most
Significantly deviation and minimum radius deviation, are calculated amplitude peak deviation and the minimum radius is inclined
Magnitude Difference between difference, judges whether the Magnitude Difference is less than amplitude predetermined threshold value, if being less than,
Determine the amplitude calibration success of the transmitting chain of the antenna；
Get maximum skew corresponding to whole transmission channels of the transmitting chain of the antenna and most
Small phase deviation, the phase difference value between maximum skew and the minimum phase deviation is calculated,
Judge whether the phase difference value is less than phase preset threshold value, if being less than, it is determined that the transmitting of the antenna
The phase alignment success of link.
12. device according to claim 10, it is characterised in that
The authentication unit, for corresponding to the whole receiving channels for the receives link for getting the antenna most
Significantly deviation and minimum radius deviation, are calculated amplitude peak deviation and the minimum radius is inclined
Magnitude Difference between difference, judges whether the Magnitude Difference is less than amplitude predetermined threshold value, if being less than,
Determine the amplitude calibration success of the receives link of the antenna；
Get maximum skew corresponding to whole receiving channels of the receives link of the antenna and most
Small phase deviation, the phase difference value between maximum skew and the minimum phase deviation is calculated,
Judge whether the phase difference value is less than phase preset threshold value, if being less than, it is determined that the reception of the antenna
The phase alignment success of link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610395067.9A CN107465466A (en) | 2016-06-06 | 2016-06-06 | A kind of detection method and device of antenna calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610395067.9A CN107465466A (en) | 2016-06-06 | 2016-06-06 | A kind of detection method and device of antenna calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107465466A true CN107465466A (en) | 2017-12-12 |
Family
ID=60545358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610395067.9A Pending CN107465466A (en) | 2016-06-06 | 2016-06-06 | A kind of detection method and device of antenna calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107465466A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274468A (en) * | 2018-11-23 | 2019-01-25 | 中国电子科技集团公司第三十八研究所 | A kind of test method and system for channel IQ zero offset capability |
| CN110470915A (en) * | 2019-07-26 | 2019-11-19 | 成都天锐星通科技有限公司 | A kind of circular polarized antenna test macro, calibration and signal testing method |
| CN110768733A (en) * | 2019-11-26 | 2020-02-07 | 武汉虹信通信技术有限责任公司 | Method and device for testing large-scale array antenna of integrated filter |
| CN111323656A (en) * | 2020-03-24 | 2020-06-23 | 南京纳特通信电子有限公司 | High-efficiency amplitude-phase test system and test method for multi-channel passive antenna array |
| CN111447027A (en) * | 2020-02-17 | 2020-07-24 | 普联技术有限公司 | Link time delay calibration method, device, storage medium, terminal device and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070069945A1 (en) * | 2005-09-28 | 2007-03-29 | Alcatel | Calibration method for smart antenna arrays |
| CN101424730A (en) * | 2007-11-02 | 2009-05-06 | 杰脉通信技术(上海)有限公司 | Multichannel positioning system calibrating method |
| CN102412917A (en) * | 2011-12-16 | 2012-04-11 | 哈尔滨工业大学深圳研究生院 | Multiple-antenna measurement system and method based on network analyzer and RF (radio frequency) switch |
| CN102594426A (en) * | 2012-02-21 | 2012-07-18 | 中兴通讯股份有限公司 | Device and method for carrying out synchronous calibration on multiple receiving/transmitting channels of active antenna |
| CN104360328A (en) * | 2014-11-11 | 2015-02-18 | 西安电子工程研究所 | Phased array radar transmitting channel far-field calibration method and system |
| WO2015062761A1 (en) * | 2013-10-29 | 2015-05-07 | Socowave Technologies Limited | Active antenna system and methods of testing |
-
2016
- 2016-06-06 CN CN201610395067.9A patent/CN107465466A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070069945A1 (en) * | 2005-09-28 | 2007-03-29 | Alcatel | Calibration method for smart antenna arrays |
| CN101424730A (en) * | 2007-11-02 | 2009-05-06 | 杰脉通信技术(上海)有限公司 | Multichannel positioning system calibrating method |
| CN102412917A (en) * | 2011-12-16 | 2012-04-11 | 哈尔滨工业大学深圳研究生院 | Multiple-antenna measurement system and method based on network analyzer and RF (radio frequency) switch |
| CN102594426A (en) * | 2012-02-21 | 2012-07-18 | 中兴通讯股份有限公司 | Device and method for carrying out synchronous calibration on multiple receiving/transmitting channels of active antenna |
| WO2015062761A1 (en) * | 2013-10-29 | 2015-05-07 | Socowave Technologies Limited | Active antenna system and methods of testing |
| CN104360328A (en) * | 2014-11-11 | 2015-02-18 | 西安电子工程研究所 | Phased array radar transmitting channel far-field calibration method and system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274468A (en) * | 2018-11-23 | 2019-01-25 | 中国电子科技集团公司第三十八研究所 | A kind of test method and system for channel IQ zero offset capability |
| CN109274468B (en) * | 2018-11-23 | 2021-04-16 | 中国电子科技集团公司第三十八研究所 | Method and system for testing channel IQ automatic correction function |
| CN110470915A (en) * | 2019-07-26 | 2019-11-19 | 成都天锐星通科技有限公司 | A kind of circular polarized antenna test macro, calibration and signal testing method |
| CN110768733A (en) * | 2019-11-26 | 2020-02-07 | 武汉虹信通信技术有限责任公司 | Method and device for testing large-scale array antenna of integrated filter |
| CN111447027A (en) * | 2020-02-17 | 2020-07-24 | 普联技术有限公司 | Link time delay calibration method, device, storage medium, terminal device and system |
| CN111323656A (en) * | 2020-03-24 | 2020-06-23 | 南京纳特通信电子有限公司 | High-efficiency amplitude-phase test system and test method for multi-channel passive antenna array |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107465466A (en) | A kind of detection method and device of antenna calibration | |
| CN108234036B (en) | Wireless performance test method of MIMO wireless terminal | |
| CN107566053A (en) | Method and system for testing radio frequency index and computer readable storage medium | |
| CN110350988B (en) | OTA performance test system of intelligent wearable equipment under interference condition | |
| US7979225B2 (en) | Method and system of testing device sensitivity | |
| CN106788791A (en) | The many corrugated controller test systems in darkroom, method and device | |
| US6675328B1 (en) | System and method to determine data throughput in a communication network | |
| KR20070073981A (en) | A method and system for producing signals to test semiconductor devices | |
| US20210390456A1 (en) | System and method for separation and classification of signals using cyclic loop images | |
| WO2001028159A2 (en) | System and method to determine data throughput in a communication network | |
| CN104931906B (en) | The transmission delay calibration method and system of the digital channel of integrated circuit test system | |
| CN101107796A (en) | Method and device for performing channel simulation | |
| CN101689939A (en) | Evaluation of the feedback quality in communication systems | |
| TW201507395A (en) | Method for testing sensitivity of a data packet signal transceiver | |
| CN104301051B (en) | The system of a kind of wireless data measurement, testing jig and shielded box | |
| CN108541010A (en) | A kind of multi-mode communication system simulation field testing method | |
| CN106199237A (en) | The system of test device antenna | |
| CN111432425A (en) | Test system and test method for network mode optimization of 3G/4G router | |
| CN105979534A (en) | Method and system for detecting interference of LTE on WIFI | |
| CN108833035A (en) | Isolation degree test system, method and computer equipment | |
| US6898746B2 (en) | Method of and apparatus for testing a serial differential/mixed signal device | |
| CN107181547A (en) | The method and apparatus for obtaining MIMO OTA test system center powers | |
| CN105974347A (en) | Calibration method and system of test system | |
| CN105656574A (en) | Detection device for sensitivity of NFC card reader | |
| CN106941690A (en) | A kind of quality of data determines method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171212 |