CN107517476A - Antenna-feedback system intermodulation fault point positioning method, device, equipment and storage medium - Google Patents
Antenna-feedback system intermodulation fault point positioning method, device, equipment and storage medium Download PDFInfo
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- CN107517476A CN107517476A CN201710734214.5A CN201710734214A CN107517476A CN 107517476 A CN107517476 A CN 107517476A CN 201710734214 A CN201710734214 A CN 201710734214A CN 107517476 A CN107517476 A CN 107517476A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- 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
Abstract
The present invention provides a kind of antenna-feedback system intermodulation fault point positioning method, device, equipment and storage medium.Its method and step includes：Two-way test signal is sent, is output to multiple branch circuit system under test (SUT) after treatment；Intermodulation impulse noise signal caused by multiple branch circuit system under test (SUT) returns, receiving end mouth receives, the time difference for the intermodulation impulse noise signal that the test pulse signal that output port sends receives with receiving port is calculated through analysis, obtains intermodulation trouble point to the transmission range of input port；Intermodulation trouble point is obtained after the same method to the transmission range of output port；Because the length of each branch road is fixed, the transmission range at intermodulation trouble point both ends is fixed, and the transmission range sum calculated twice is corresponding with the leg length where trouble point, so as to simply efficiently judge multiple branch circuit intermodulation position of failure point.
Description
Technical field
The present invention relates to antenna failure detection technique field, more particularly to a kind of antenna-feedback system intermodulation localization of fault
Method, apparatus, equipment and storage medium.
Background technology
Radio communication antenna-feedback system intermodulation noise refers to, when two or more high-power transmission signals pass through antenna feeder and day
During line, due to the nonlinear characteristic of system, one or more inter-modulated signals can be produced, these useless inter-modulated signals can be communicated
The receiver of system receives, so as to have impact on the normal work of receiver, so these useless inter-modulated signals are referred to as mutually
Adjust noise signal.
Often there are multiple high-power transmission signals in Modern wireless communication antenna-feedback system, if the quality of antenna-feedback system
Difference, will produce multiple intermodulation noise signals, and these noise signals can influence the normal work of wireless communication system receiver, make
Into the degradation of communication quality.
But because antenna-feedback system is more complicated, averagely there is hundred meters of length, in daily construction and maintenance, it is difficult to accurate
True positioning produces the abort situation of intermodulation noise.Need each part progressively exclude, workload is very huge, and work
It is low to make efficiency.
Prior art utilizes Time Domain Reflectometry by building the measuring system of a set of antenna-feedback system intermodulation noise localization of fault
Principle, two paths of signals is inputted, the reflected signal of intermodulation failure point reflection is different from the two paths of signals frequency inputted, calculates input
The time difference of signal and reflected signal；And what the speed that radiofrequency signal is transmitted in certain medium was to determine, according to：Distance=
0.5* time * speed, calculates position of failure point caused by intermodulation noise.
But when two or more branches occurs in system, prior art can not accurately measure trouble point appearance
Particular location.
The content of the invention
The technical problems to be solved by the invention are the deficiencies for above-mentioned prior art positioning multiple branch circuit intermodulation trouble point,
A kind of antenna-feedback system branch road intermodulation trouble point method of testing is provided.
This method is achieved in that first aspect present invention provides a kind of antenna-feedback system intermodulation localization of fault side
Method, antenna-feedback system intermodulation trouble point method of testing comprise the following steps：
RF pulse signal is tested in the input port transmitting two-way of multiple branch roads systems, according to test RF pulse signal
With the time difference of the intermodulation impulse noise signal returned from system under test (SUT), intermodulation trouble point is calculated to first between input port
Transmission range；
RF pulse signal is tested in the output port transmitting two-way of multiple branch roads systems, according to test RF pulse signal
With the time difference of the intermodulation impulse noise signal returned from system under test (SUT), the second transmission of intermodulation trouble point and output port is calculated
Distance；
By the first transmission range and the second transmission range and contrasted with the length of multiple branch roads, obtain intermodulation failure
Point position.
Further, in the method for testing of antenna-feedback system branch road intermodulation trouble point, the input of branch road where system under test (SUT)
The step of mouth or output port transmitting test RF pulse signal, including：
Two-way is simultaneously emitted by by vector network analyzer and tests radio-frequency pulse test signal；
After two-way radio-frequency pulse test signal is carried out signal amplification by radio-frequency power amplifier respectively, then pass through combining
Two paths of signals after amplification is combined into and tests RF pulse signal all the way by device, then is output to system under test (SUT) institute by duplexer
In the input port or output port of branch road.
Further, in the method for testing of antenna-feedback system branch road intermodulation trouble point, the intermodulation arteries and veins returned from system under test (SUT) is received
The step of rushing noise signal, including：
The intermodulation impulse noise signal returned from system under test (SUT) is entered into vector after the receiving port separation of duplexer
Network Analyzer.
Further, in the method for testing of antenna-feedback system branch road intermodulation trouble point, according to test RF pulse signal with from quilt
The time difference for the intermodulation impulse noise signal that examining system returns, intermodulation trouble point is calculated between input port or output port
The step of transmission range, including：
Intermodulation trouble point is calculated to the transmission range between input port or output port according to below equation：
L=0.5* (T2-T1)*C；
Wherein, T1Time, T are sent for two-way radio-frequency pulse test signal2The time returned for intermodulation impulse noise signal, L
For intermodulation trouble point distance input port or the transmission range of output port, C is biography of the intermodulation impulse noise signal in branch road
Broadcast speed.
Further, in the method for testing of antenna-feedback system branch road intermodulation trouble point, by the first transmission range and the second transmission distance
From and contrasted with the length of branch road where system under test (SUT), the step of obtaining intermodulation position of failure point on branch road, including：
By the first transmission range and the second transmission range and the length with each branch road is contrasted respectively；
When the first transmission range and the second transmission range and identical with the length of one of branch road, determine intermodulation therefore
Barrier point is located at the branch road, and determines position of the intermodulation trouble point on the branch road according to the first transmission range and the second transmission range
Put.
Second aspect of the present invention also provides a kind of antenna-feedback system intermodulation trouble point testing diagnosis equipment, including:
Test signal transmitter module, two-way radio frequency is sent for the input port to multiple branch circuit system under test (SUT) or output port
Pulse test signal；
Transmission range test module, it is true for the time difference according to transmitting RF pulse signal and reception RF pulse signal
Intermodulation trouble point is determined to the output of multiple branch circuit system under test (SUT) or the transmission range of input port；
Position of failure point comparison module, for by the output of intermodulation trouble point to multiple branch circuit system under test (SUT) or input port
Transmission range sum is compared with the length of each branch road, judges intermodulation position of failure point on out branch.
Third aspect present invention provides a kind of terminal device, including memory, processor and storage are in memory simultaneously
The computer program that can be run on a processor, realize such as first aspect present invention method during computing device computer program
Step.
Fourth aspect of the embodiment of the present invention provides a kind of computer-readable recording medium, computer-readable recording medium storage
There is computer program, realized when computer program is executed by processor such as the step of first aspect present invention method.
The present invention provides a kind of antenna-feedback system intermodulation fault point positioning method, device, equipment and storage medium, existing to solve
There is the problem of multiple branch circuit system under test (SUT) branch road intermodulation trouble point measures in technology, by measuring input port and output port respectively
To the transmission range of intermodulation trouble point；Because the length of each branch road is fixed, the transmission range at intermodulation trouble point both ends is fixed, twice
The transmission range sum of measuring and calculating is corresponding with the leg length where trouble point, so as to simple efficient positioning multiple branch circuit system under test (SUT)
Intermodulation trouble point.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is a kind of multiple branch circuit system under test (SUT) trouble point schematic diagram of application of the embodiment of the present invention；
Fig. 2 is a kind of flow chart of antenna-feedback system branch road intermodulation trouble point testing procedure provided in an embodiment of the present invention；
Fig. 3 is the antenna-feedback system branch road intermodulation trouble point method of testing circuit connection diagram that the embodiment of the present invention 1 provides；
Fig. 4 is a kind of flow chart for antenna-feedback system branch road intermodulation trouble point method of testing that the embodiment of the present invention 1 provides；
Fig. 5 is a kind of flow chart for antenna-feedback system branch road intermodulation trouble point method of testing that the embodiment of the present invention 2 provides；
Fig. 6 is a kind of structural representation for antenna for base station intermodulation trouble point test device that the embodiment of the present invention 3 provides；
Fig. 7 is the structural representation for the terminal device that the embodiment of the present invention 5 provides.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1
The embodiment of the present invention provides a kind of antenna-feedback system intermodulation fault point positioning method, can be to antenna for base station, radio frequency electrical
The radio communication antenna-feedback system such as cable is tested, and detects specific trouble point caused by intermodulation noise.Sweared by a multiport
Network Analyzer 1, two radio-frequency power amplifiers 2, radio frequency combiner 3 and radio frequency duplexer 4 are measured to set up whole test system,
Multiple branch circuit system under test (SUT) (DUT) 5 is tested, as shown in Figure 3.Vector network analyzer 1 itself with radio-frequency signal source and
Video receiver, built for test system, it is not necessary to individually addition radio-frequency signal source and video receiver, can be with
Realize a tractor serves several purposes.
For the ease of understanding test process, Fig. 1, Fig. 2 and Fig. 4 refer to.
A kind of antenna-feedback system intermodulation fault point positioning method provided in an embodiment of the present invention, including：
Step S10：In the input port In transmitting test RF pulse signals of multiple branch roads, believed according to test radio-frequency pulse
Number with the time difference of the intermodulation impulse noise signal returned from multiple branch circuit system under test (SUT) (DUT) 5, calculate intermodulation trouble point M to defeated
The first transmission range between inbound port In.
In step slo, multiple branch roads are parallel with one another together, have identical input port In and output port Out,
In input port In input two-way test RF pulse signals, when intermodulation trouble point M in multiple branch circuit system under test (SUT) (DUT) 5 being present
When, the trouble point can return to intermodulation impulse noise signal according to the test RF pulse signal of reception, wherein, in input port In
Input test RF pulse signal can be realized using vector network analyzer 1, radio-frequency power amplifier 2 and radio frequency combiner 3
Output to testing radiofrequency signal, specifically：Two-way radio-frequency pulse test signal is simultaneously emitted by by vector network analyzer 1,
And record the time for sending two-way radio-frequency pulse test signal.
After two-way radio-frequency pulse test signal is carried out signal amplification by radio-frequency power amplifier 2 respectively, then by penetrating
Two paths of signals after amplification is combined into test pulse signal all the way by frequency combiner 3, then is output to by radio frequency duplexer 4 more
The input port In of the place branch road of branch road system under test (SUT) (DUT) 5.
Equally, the intermodulation impulse noise signal returned from multiple branch circuit system under test (SUT) (DUT) 5 can use vector network analysis
Instrument 1, radio frequency combiner 3 realize the reception to intermodulation impulse noise signal, specifically：
Intermodulation impulse noise signal caused by multiple branch circuit system under test (SUT) (DUT) 5, returns to radio frequency duplexer 4, and intermodulation pulse is made an uproar
After acoustical signal is by radio frequency duplexer 4；Separated from the receiving port (RX) of radio frequency duplexer 4, into vector network analysis
Instrument 1, the record of vector network analyzer 1 receive the time of intermodulation impulse noise signal.
In step slo, according to test RF pulse signal and the intermodulation arteries and veins from the return of multiple branch circuit system under test (SUT) (DUT) 5
Rush the time difference of noise signal, calculate the transmission range between intermodulation trouble point M to input port In, including：
Transmission range between intermodulation trouble point M to input port In is calculated according to below equation：
L1=0.5 × (T2-T1)×C；
Wherein, T1Time, T are sent for two-way radio-frequency pulse test signal2To return to the time of intermodulation impulse noise signal,
L1 is intermodulation trouble point M distance inputs port In or output port Out transmission range, and C is that intermodulation impulse noise signal is propping up
Spread speed in road.
Step S20：RF pulse signal is tested in the output port Out transmitting two-way of multiple branch roads, according to test radio frequency
Pulse signal and the time difference of the intermodulation impulse noise signal returned from multiple branch circuit system under test (SUT) (DUT) 5, calculate intermodulation trouble point
M to output port Out the second transmission range L2.
In step S20, multiple branch circuit system under test (SUT) (DUT) 5 output port is tested according to method of testing same above-mentioned S10
The time difference of Out intermodulation impulse noise signal, intermodulation trouble point M is obtained to the output port of multiple branch circuit system under test (SUT) (DUT) 5
Out the second transmission range L2.
Step S30：First transmission range L1 and the second transmission range L2's and are contrasted with the length of multiple branch roads,
Obtain intermodulation trouble point M positions.
In step s 30, when the multiple branch circuit system under test (SUT) (DUT) 5 on branch road has intermodulation trouble point M, intermodulation event
Hinder point M and intermodulation impulse noise signal is returned to according to input port In and output port Out signal respectively, according to the intermodulation of return
Impulse noise signal can determine the branch road that intermodulation trouble point M is located at, specifically, by the first transmission range L1 and the second transmission distance
The length with each branch road is contrasted from L2's and respectively, when the first transmission range L1 and the second transmission range L2's and and its
In a branch road length it is identical when, determine that intermodulation trouble point M is located at the branch road, and pass according to the first transmission range L1 and second
Defeated distance L2 determines positions of the intermodulation trouble point M on the branch road.
The antenna-feedback system intermodulation trouble point M testing and diagnosing methods that the present embodiment provides, by measuring input port In respectively
Transmission range with output port Out to intermodulation trouble point M, because the length of each branch road is fixed, the biography at intermodulation trouble point M both ends
Defeated distance is fixed, and the transmission range sum calculated twice is corresponding with the leg length where trouble point, so as to position multiple branch circuit quilt
The intermodulation trouble point M of examining system (DUT) 5；The method operating procedure is fairly simple, intermodulation trouble point that can quickly to antenna for base station
M is positioned, so as to improve the efficiency fixed a breakdown.
Embodiment 2
Before step S10, in addition to the calibration of power to radiofrequency signal output module, for vector network analyzer
Carry out the calibration of power.
In embodiment 1, it can be seen from intermodulation Producing reason, due to some passive devices in system be present, as duplexer,
Combiner, amplifier etc., itself can produce passive intermodulation, influence the precision of measurement.The test of passive intermodulation measuring system misses
Difference and the material of measured object, the sensitivity etc. by extent of corrosion, receiver of measured object are relevant, actually utilize the mutual of measured object
Adjust the measurement error of the absolute value estimating system of actual value and the difference of measured value：
In formula, Δ δ is systematic survey practical relative error, PIMOFor measured object intermodulation actual value, PIM measures for measured object
Value.Measuring system itself intermodulation differs more hour with the mutual tone pitch of measured object, and the uncertainty of measurement is higher, when the mutual tone pitch of measured object
During close to system remaining mutual tone pitch in itself, obvious measurement error will be produced, it is therefore necessary to the error of measuring system in itself
Calibrated.
As shown in figure 5, power attenuator 6 is connected in two test signal output port rear ends of vector network analyzer,
Power attenuator rear end connects power meter 7, wherein, the pad value of high power attenuator is △ P.
Power P is loaded in the port of vector network analyzer 10, according to the display of power meter 7, adjustment vector Network Analyzer 1
The power output P of port, make the power output P=P of the port of vector network analyzer 10-△P。
After the completion of calibration, connecting back to for the port of vector network analyzer 1 and high power attenuator 6 and power meter 7 is disconnected
Road, then carry out other steps of embodiment 1 and abnormity point is positioned.
The present embodiment carries out a calibration to power output by using high power attenuator 6 and power meter 7, can overcome survey
The inter-modulated signal residual of amount system in itself, the error of measurement result is reduced, improve the precision of abnormal point location.
Embodiment 3
The present embodiment provides a kind of antenna-feedback system intermodulation trouble point M positioners 50, as shown in fig. 6, including：
Test signal transmitter module 501, for the input port In or output port of multiple branch circuit system under test (SUT) (DUT) 5
Out sends two-way radio-frequency pulse test signal；
Transmission range test module 502, for the time according to transmitting RF pulse signal and reception RF pulse signal
Difference determines intermodulation trouble point M to the output of multiple branch circuit system under test (SUT) (DUT) 5 or input port In transmission range；
Position of failure point comparison module 503, for by intermodulation trouble point M to the output of multiple branch circuit system under test (SUT) (DUT) 5 or
Input port In transmission range sum is compared with the length of each branch road, judges intermodulation trouble point M positions on out branch.
Further, test signal transmitter module 501 includes：
Vector network analyzer 1, for being simultaneously emitted by two-way radio-frequency pulse test signal；
Radio-frequency power amplifier 2, for spending to two-way radio-frequency pulse test signal respectively by carrying out signal amplification；
Radio frequency combiner 3, radio-frequency pulse letter is tested all the way for the two-way pulse test signal after amplification to be combined into
Number；
Radio frequency duplexer 4, it is output to for RF pulse signal will to be tested all the way where multiple branch circuit system under test (SUT) (DUT) 5
The input port In or input port Out of branch road.
Further, radio frequency duplexer 4 is additionally operable to the intermodulation impulsive noise that will be returned from multiple branch circuit system under test (SUT) (DUT) 5
Signal enters vector network analyzer 1 after the receiving port separation of radio frequency duplexer 4.
Further, transmission range test module 502 according to test RF pulse signal with from multiple branch circuit system under test (SUT)
(DUT) time difference of the 5 intermodulation impulse noise signals returned, intermodulation trouble point M to input port In or input port Out is calculated
Between transmission range, including：
Intermodulation trouble point M is calculated to the transmission range between input port In or input port Out according to below equation：
L=0.5 × (T2-T1)×C；
Wherein, T1Time, T are sent for two-way radio-frequency pulse test signal2To return to the time of intermodulation impulse noise signal, L
For intermodulation trouble point M distance inputs port In or input port Out transmission range, C is intermodulation impulse noise signal in branch road
In spread speed.
Further, position of failure point comparison module 503 be used for it is by the first transmission range and the second transmission range and with
The length of the place branch road of multiple branch circuit system under test (SUT) (DUT) 5 is contrasted, and obtains intermodulation trouble point M positions on branch road, including：
By the first transmission range and the second transmission range and the length with each branch road is contrasted respectively；
When the first transmission range and the second transmission range and identical with the length of one of branch road, determine intermodulation therefore
Barrier point M is located at the branch road, and determines positions of the intermodulation trouble point M on the branch road according to the first transmission range and the second transmission range
Put.
The specific work process of module in above-mentioned terminal device, may be referred to the corresponding process in preceding method embodiment,
It will not be repeated here.
Embodiment 4
The present embodiment provides a computer-readable recording medium, and computer journey is stored with the computer-readable recording medium
Sequence, the computer program realize the antenna-feedback system intermodulation trouble point M localization methods in above-described embodiment, are when being executed by processor
Avoid repeating, repeat no more here.Or the computer program realizes antenna-feedback system in above-described embodiment when being executed by processor
The function of each module/unit, to avoid repeating, is repeated no more here in the M positioners of intermodulation trouble point.
Embodiment 5
Fig. 7 is the schematic diagram of terminal device in the present embodiment.As shown in fig. 7, terminal device 6 includes processor 60, storage
Device 61 and it is stored in the computer program 62 that can be run in memory 61 and on processor 60.Processor 60 performs computer
Each step of antenna-feedback system intermodulation trouble point M localization methods in above-described embodiment, such as the step shown in Fig. 2 are realized during program 62
Rapid S10, S20 and S30.Or realize antenna-feedback system intermodulation event in above-described embodiment during the execution computer program 62 of processor 60
Hinder the function of each module/unit of point M positioners, test signal transmitter module 501 as shown in Figure 6, transmission range test module
502nd, the function of position of failure point comparison module 503.
Exemplary, computer program 62 can be divided into one or more module/units, one or more mould
Block/unit is stored in memory 61, and is performed by processor 60, to complete the present invention.One or more module/units can
To be the series of computation machine programmed instruction section that can complete specific function, the instruction segment is for describing computer program 62 at end
Implementation procedure in end equipment 6.For example, computer program 62 can be divided into synchronization module, summarizing module, acquisition module,
Return to module (module in virtual bench).
The terminal device 6 can be the computing devices such as desktop PC, notebook, palm PC and cloud server.
Terminal device may include, but be not limited only to, processor 60, memory 61.It will be understood by those skilled in the art that Fig. 7 is only
The example of terminal device 6, the restriction to terminal device 6 is not formed, parts more more or less than diagram can be included, or
Combine some parts, or different parts, for example, terminal device can also include input-output equipment, network access equipment,
Bus etc..
Alleged processor 60 can be CPU (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other PLDs, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processor
Deng.
Memory 61 can be the internal storage unit of terminal device 6, such as the hard disk or internal memory of terminal device 6.Storage
Device 61 can also be the plug-in type hard disk being equipped with the External memory equipment of terminal device 6, such as terminal device 6, intelligent storage
Block (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card (Flash Card) etc..
Further, memory 61 can also both include the internal storage unit of terminal device 6 or including External memory equipment.Memory
61 are used to store computer program and other programs and data needed for terminal device.Memory 61 can be also used for temporarily
Store the data that has exported or will export.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each work(
Can unit, module division progress for example, in practical application, can be as needed and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of device are divided into different functional units or module, to complete above description
All or part of function.Each functional unit, module in embodiment can be integrated in a processing unit or
Unit is individually physically present, can also two or more units it is integrated in a unit, above-mentioned integrated unit
Both it can be realized, can also be realized in the form of SFU software functional unit in the form of hardware.In addition, each functional unit, mould
The specific name of block is not limited to the protection domain of the application also only to facilitate mutually distinguish.It is single in said system
Member, the specific work process of module, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and is not described in detail or remembers in some embodiment
The part of load, it may refer to the associated description of other embodiments.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, it can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, application-specific and design constraint depending on technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed device/terminal device and method, can be with
Realize by another way.For example, device described above/terminal device embodiment is only schematical, for example, mould
The division of block or unit, only a kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple
Unit or component can combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another
Point, shown or discussed mutual coupling or direct-coupling or communication connection can be by some interfaces, device or
The INDIRECT COUPLING of unit or communication connection, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, be shown as unit
Part can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple networks
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If integrated module/unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, the present invention realizes above-described embodiment side
All or part of flow in method, by computer program the hardware of correlation can also be instructed to complete, computer program
It can be stored in a computer-readable recording medium, above-mentioned each side can be achieved when being executed by processor in the computer program
The step of method embodiment.Wherein, computer program includes computer program code, and computer program code can be source code shape
Formula, object identification code form, executable file or some intermediate forms etc..Computer-readable medium can include：Meter can be carried
Any entity or device of calculation machine program code, recording medium, USB flash disk, mobile hard disk, magnetic disc, CD, computer storage, only
Memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electricity is read to carry
Ripple signal, telecommunication signal and software distribution medium etc..It should be noted that the content that computer-readable medium includes can root
Appropriate increase and decrease is carried out according to legislation in jurisdiction and the requirement of patent practice, such as in some jurisdictions, according to vertical
Method and patent practice, it is electric carrier signal and telecommunication signal that computer-readable medium, which does not include,.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme, all should include
Within protection scope of the present invention.
Claims (10)
- A kind of 1. antenna-feedback system intermodulation fault point positioning method, it is characterised in that antenna-feedback system intermodulation fault point positioning method bag Include following steps：Multiple branch roads systems input port transmitting two-way test RF pulse signal, according to test RF pulse signal with from The time difference for the intermodulation impulse noise signal that system under test (SUT) returns, intermodulation trouble point is calculated to the first transmission between input port Distance；Multiple branch roads systems output port transmitting two-way test RF pulse signal, according to test RF pulse signal with from The time difference for the intermodulation impulse noise signal that system under test (SUT) returns, intermodulation trouble point is calculated to the second transmission between output port Distance；By the first transmission range and the second transmission range and contrasted with the length of multiple branch roads, obtain intermodulation trouble point position Put.
- 2. antenna-feedback system intermodulation fault point positioning method according to claim 1, it is characterised in that the branch road where system under test (SUT) Input port or output port transmitting test RF pulse signal, including：Two-way is simultaneously emitted by by vector network analyzer and tests radio-frequency pulse test signal；After two-way radio-frequency pulse test signal is carried out signal amplification by radio-frequency power amplifier respectively, then will by combiner Two paths of signals after amplification is combined into and tests RF pulse signal all the way, then is output to where system under test (SUT) and props up by duplexer The input port or output port on road.
- 3. antenna-feedback system intermodulation fault point positioning method according to claim 2, it is characterised in that receive and returned from system under test (SUT) Intermodulation impulse noise signal, including：The intermodulation impulse noise signal returned from system under test (SUT) is entered into vector network after the receiving port separation of duplexer Analyzer.
- 4. according to the antenna-feedback system intermodulation fault point positioning method of claims 1 to 3 any one, it is characterised in that according to survey RF pulse signal and the time difference of the intermodulation impulse noise signal returned from system under test (SUT) are tried, calculates intermodulation trouble point to input Transmission range between port or output port, including：Intermodulation trouble point is calculated to the transmission range between input port or output port according to below equation：L=0.5* (T2-T1)*C；Wherein, T1Time, T are sent for two-way radio-frequency pulse test signal2The time returned for intermodulation impulse noise signal, L is mutual The transmission range of trouble point distance input port or output port is adjusted, C is propagation speed of the intermodulation impulse noise signal in branch road Degree.
- 5. antenna-feedback system intermodulation fault point positioning method according to claim 1, it is characterised in that by the first transmission range and Two transmission ranges and contrasted with the length of branch road where system under test (SUT), obtain intermodulation position of failure point on branch road, including：By the first transmission range and the second transmission range and the length with each branch road is contrasted respectively；When the first transmission range and the second transmission range and identical with the length of one of branch road, intermodulation trouble point is determined Position of the intermodulation trouble point on the branch road is determined positioned at the branch road, and according to the first transmission range and the second transmission range.
- A kind of 6. antenna-feedback system intermodulation positioning device of fault point, it is characterised in that including：Test signal transmitter module, two-way radio-frequency pulse is sent for the input port to multiple branch circuit system under test (SUT) or output port Test signal；Transmission range test module, it is mutual for being determined according to the time difference of transmitting RF pulse signal and reception RF pulse signal Trouble point is adjusted to the output of multiple branch circuit system under test (SUT) or the transmission range of input port；Position of failure point comparison module, for by intermodulation trouble point to the output of multiple branch circuit system under test (SUT) or the transmission of input port It is compared apart from sum with the length of each branch road, judges that intermodulation trouble point is located at intermodulation trouble point on that branch road and branch road Position.
- 7. antenna-feedback system intermodulation positioning device of fault point according to claim 6, it is characterised in that test signal transmitter module bag Include：Vector network analyzer, for being simultaneously emitted by two-way radio-frequency pulse test signal；Power amplifier, for carrying out signal amplification to two-way radio-frequency pulse test signal；Combiner, RF pulse signal is tested all the way for the two paths of signals after amplification to be combined into；Duplexer, input port or output end for branch road where test RF pulse signal all the way is output into system under test (SUT) Mouthful.
- 8. antenna-feedback system intermodulation positioning device of fault point according to claim 7, it is characterised in that duplexer is additionally operable to from quilt The intermodulation impulse noise signal that examining system returns enters vector network analyzer after the receiving port separation of duplexer.
- 9. a kind of terminal device, including memory, processor and storage are in memory and the meter that can run on a processor Calculation machine program, it is characterised in that realized during computing device computer program such as the step of any one of claim 1 to 5 method.
- 10. a kind of computer-readable recording medium, computer-readable recording medium storage have computer program, it is characterised in that Realized when computer program is executed by processor such as the step of any one of claim 1 to 5 method.
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