CN109815585A - A kind of method and equipment of difference loss that checking S parameter model - Google Patents
A kind of method and equipment of difference loss that checking S parameter model Download PDFInfo
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- CN109815585A CN109815585A CN201910056475.5A CN201910056475A CN109815585A CN 109815585 A CN109815585 A CN 109815585A CN 201910056475 A CN201910056475 A CN 201910056475A CN 109815585 A CN109815585 A CN 109815585A
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Abstract
The invention discloses a kind of methods of difference loss for checking S parameter model, comprising steps of S1, reading S parameter model；S2, one in several port corresponding relationships is selected；S3, the port corresponding relationship according to selection, the difference for calculating the S parameter model are lost and obtain difference damage curve；S4, the correctness that the difference damage curve is judged according to preset condition；S5, in response to the difference damage curve mistake, return step S2 is and correct in response to difference damage curve to select next port corresponding relationship, exports the correct difference damage curve.Method disclosed by the invention in the case where that can not determine the actual port corresponding relationship of S parameter model, can still check the difference loss of S parameter model.
Description
Technical field
The present invention relates to testing fields, and in particular to a kind of method and equipment of the difference loss for checking S parameter model.
Background technique
S parameter measurement is one of the basic means during radio frequency design, high-speed signaling designs.S parameter is by detected element
It is described as a flight data recorder, and is used to the behavior of simulation electronic component at different frequencies.The expression way of S parameter is a variety of more
Sample.It is a matrix form on mathematical expression, each numerical value in matrix represents certain physical significance.In avatars
On, then it is that a horizontal axis indicates frequency, the longitudinal axis indicates the curve of scattering degree.Such as have the S parameter of 4 ports, energy point
Not from port 1, port 2 enters, and respectively from port 3, port 4 is exported, the energy and input measured from output port in engineering
Port energy ratio is defined as insertion loss after taking logarithm；From input port measure reflected energy and input quantity ratio
Value is defined as return loss after taking logarithm.Insertion loss illustrates the degree to input energy decaying an of black box device；It returns
Wave loss illustrates the degree to input energy reflection an of black box device.
The problems in current S parameter use process: S parameter model is often used to the quality of analysis high-speed link.High-speed chain
Road is all the cabling of difference form, and S parameter record is the loss situation of solid wire at present, therefore it is poor to be directly viewable model
Loss under merotype.The loss size under difference modes in order to check a S parameter model, is required in business software
Do certain setting.If checking that S parameter model is a s64p file, manual setting need to be taken some time, and be influenced
Simulation work efficiency.And it is checked by business software, it is also desirable to the actual port corresponding relationship of S parameter model is obtained, if
There is no actual port corresponding relationship, can not just check the loss under difference modes.
Summary of the invention
In view of this, at least one aspect in order to overcome the above problem, the embodiment of the present invention proposes that one kind checks that S joins
The method of the difference loss of exponential model, comprising steps of
S1, S parameter model is read；
S2, one in several port corresponding relationships is selected；
S3, the port corresponding relationship according to selection, the difference for calculating the S parameter model are lost and obtain difference damage
Consume curve；
S4, the correctness that the difference damage curve is judged according to preset condition；
S5, in response to the difference damage curve mistake, return step S2 to select next port corresponding relationship, and
It is correct in response to difference damage curve, export the correct difference damage curve.
In some embodiments, step S3 further comprises:
S31, the port number for reading the S parameter model and be original matrix by the S parameter model conversion；
S32, according to the selected port corresponding relationship, convert difference S parameter matrix for the original matrix, and will
It is converted to S parameter file；
S33, the difference damage curve is obtained using the S parameter file.
In some embodiments, it reads the port number of S parameter model and includes: for original matrix by S parameter model conversion
The port number of the S parameter model is obtained using sparameters function and is original matrix by the S parameter model conversion.
In some embodiments, according to the port corresponding relationship of selection, difference S parameter matrix is converted by original matrix,
And converting it into S parameter file includes: to convert difference S parameter matrix for the original matrix using s2sdd function, and incite somebody to action
It is converted to S parameter file.
In some embodiments, obtaining difference damage curve using S parameter file includes: to utilize for circulation and rfplot
Function obtains the difference damage curve.
In some embodiments, step S33 further comprises:
Insertion loss curve and return loss plot are obtained using for circulation and rfplot function.
In some embodiments, whether the preset condition is the starting point of the insertion loss curve close to zero point.
In some embodiments, the integral multiple that the port number of the S parameter model is 4.
Based on the same inventive concept, according to another aspect of the present invention, the embodiments of the present invention also provide a kind of meters
Calculate machine equipment, comprising:
At least one processor；And
Memory, the memory are stored with the computer program that can be run on the processor, and the processor is held
The step of method of any difference loss for checking S parameter model as described above is executed when row described program.
Based on the same inventive concept, according to another aspect of the present invention, the embodiments of the present invention also provide a kind of meters
Calculation machine readable storage medium storing program for executing, the computer-readable recording medium storage have computer program, and the computer program is processed
The step of method of any difference loss for checking S parameter model as described above is executed when device executes.
The present invention has following advantageous effects: can be in the actual port corresponding relationship that can not determine S parameter model
In the case where, it can still check the difference loss of S parameter model.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other embodiments are obtained according to these attached drawings.
Fig. 1 is a kind of process signal of the method for difference loss for checking S parameter model that the embodiment of the present invention provides
Figure；
Fig. 2 is correct insertion loss curve graph；
Fig. 3 is return loss plot figure；
Fig. 4 is a kind of device for difference loss for checking S parameter model that the embodiment of the present invention provides；
Fig. 5 is the structural schematic diagram for the computer equipment that the embodiment of the present invention provides；
Fig. 6 is the structural schematic diagram for the computer readable storage medium that the embodiment of the present invention provides.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
The embodiment of the present invention is further described in attached drawing.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention
The non-equal entity of a same names or non-equal parameter, it is seen that " first " " second " only for the convenience of statement, does not answer
It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.
According to an aspect of the present invention, the embodiment of the present invention proposes a kind of adaptive optical signal speed of switch system
The method of rate, as shown in Figure 1, it may include step: S1, reading S parameter model；S2, several port corresponding relationships are selected
In one；S3, the port corresponding relationship according to selection, the difference for calculating the S parameter model are lost and obtain difference
Damage curve；S4, the correctness that the difference damage curve is judged according to preset condition；S5, song is lost in response to the difference
Line mistake, return step S2 is and correct in response to difference damage curve to select next port corresponding relationship, is exporting this just
True difference damage curve.
In some embodiments, S parameter model can be obtained by Network Analyzer, then by the S parameter mode input
To after designated position, so that it may read the relevant parameter of S parameter model to carry out subsequent operation.
In some embodiments, several port corresponding relationships can be odd-numbered port entry/exit, and even port goes out/into also
Can be from 1 to n/2 port successively entry/exit, from n/2+1 to n a port successively go out/into wherein n is the total of S parameter model
Port number or other port corresponding relationships.In this way, every time after selection a port corresponding relationship, it being directed to should
Port corresponding relationship carries out the calculating of loss value, and then obtains damage curve.If the port corresponding relationship of selection is correct,
The starting point of the damage curve obtained starts from scratch or since close to zero, otherwise showing that the port corresponding relationship of selection is wrong
Accidentally.If obtained damage curve be it is wrong, loss value can be carried out again by selecting another port corresponding relationship
It calculates, and then obtains damage curve again, continue to judge whether damage curve meets starting point and start from scratch or from close to zero
The condition of beginning continues to repeat the above process, until what is obtained if not satisfied, then continuing to select the third port corresponding relationship
Damage curve meets starting point and starts from scratch or since close to the condition zero.
In some embodiments, according to the port corresponding relationship of selection, the difference for calculating the S parameter model is lost and obtains
May include step to difference damage curve:
S31, the port number for reading the S parameter model and be original matrix by the S parameter model conversion；
S32, according to the selected port corresponding relationship, convert difference S parameter matrix for the original matrix, and will
It is converted to S parameter file；
S33, the difference damage curve is obtained using the S parameter file.
Specifically, can use sparameters function first obtains the port number of the S parameter model and by the S
Parameter model is converted to original matrix, then according to the port corresponding relationship of selection, using s2sdd function by the original matrix
It is converted into difference S parameter matrix, and converts it into S parameter file, is finally obtained using using for circulation and rfplot function
The difference damage curve.
In some embodiments, it can use for circulation and rfplot function obtain insertion loss curve and echo damage
Consume curve.As shown in Figures 2 and 3, wherein figure 2 show damage curve figure is properly inserted, it can be seen from the figure that correctly
The starting point of insertion loss curve, which can be, starts from scratch, if the starting point of insertion loss curve graph is not to start from scratch or be not
Since close to zero, then illustrate the port corresponding relationship of selection be it is wrong, need replacing port choice relation at this time, then again
It is secondary to obtain insertion loss curve graph and judge whether its starting point starts from scratch or since close to zero, if start from scratch or from
Start close to zero, then illustrate that the port corresponding relationship of selection is correct, that is, can determine that the actual port of the S parameter model is corresponding and close
System, and available simultaneously its are properly inserted damage curve and return loss plot.Fig. 3 shows return loss plot
Figure, it should be noted that in the present embodiment, it is only necessary to judge the correctness of insertion loss curve graph, that is, can determine that echo damages
Whether correct consume curve graph.
It should be noted that the original S parameter file that can be converted to difference modes S parameter file at least needs 4 ends
Mouthful, therefore in some embodiments, the integral multiple that the port number of S parameter model is 4.
In some embodiments, by taking a 4 port S parameter models as an example, selection port corresponding relationship is that port 1,3 is defeated
Enter end, 2,4 be output end, in this way can be such that the formula that single-ended loss is converted to difference loss
SDD11=0.5* (S (1,1)-S (1,3)-S (3,1)+S (3,3))
SDD12=0.5* (S (1,2)-S (1,4)-S (3,2)+S (3,4))
SDD21=0.5* (S (2,1)-S (2,3)-S (4,1)+S (4,3))
SDD22=0.5* (S (2,2)-S (2,4)-S (4,2)+S (4,4))
Wherein, S (i, j) is single-ended loss；SDD (i, j) is difference loss, and i, j are respectively port numbering.
The method that the embodiment of the present invention proposes can be the actual port corresponding relationship that can not determine S parameter model the case where
Under, it can still check the difference loss of S parameter model, while the correct port corresponding relationship of S parameter model can also be obtained.
Based on the same inventive concept, according to another aspect of the present invention, as shown in figure 4, the embodiment of the present invention also mentions
A kind of device has been supplied, may include S parameter model read module, port corresponding selection module, curve generation module.
It should be noted that although the port corresponding selection module shown in Fig. 4 illustrates only 2 kinds of port corresponding relationships,
But it is only merely signal, and it is for selection that other several port corresponding relationships can also be arranged in practice.
In some embodiments, it can use S parameter model read module and read the S parameter obtained using Network Analyzer
Then model selects one of port corresponding relationship in port corresponding selection module, then utilizes curve generation module
Corresponding damage curve is generated according to the port corresponding relationship of selection, then judges whether the curve generated meets preset condition,
Whether the insertion loss curve graph generated is to start from scratch or since close to zero, if being unsatisfactory for preset condition, holding
Mouth corresponding selection module selects another port corresponding relationship, and until the curve of generation meets preset condition, i.e. satisfaction generates
Insertion loss curve graph is started from scratch or since close to zero.
In some embodiments, which can also include judgment module, the insertion loss curve graph for judging to generate
Whether preset condition is met.
Based on the same inventive concept, according to another aspect of the present invention, as shown in figure 5, the embodiment of the present invention also mentions
Supply a kind of computer equipment 501, comprising:
At least one processor 520；And
Memory 510, memory 510 are stored with the computer program 511 that can be run on a processor, and processor 520 is held
The step of method of any difference loss for checking S parameter model as above is executed when line program.
Based on the same inventive concept, according to another aspect of the present invention, as shown in fig. 6, the embodiment of the present invention also mentions
A kind of computer readable storage medium 601 is supplied, computer readable storage medium 601 is stored with computer program 610, computer
The step of method of any difference loss for checking S parameter model as above is executed when program 610 is executed by processor.
Finally, it should be noted that those of ordinary skill in the art will appreciate that realizing the whole in above-described embodiment method
Or part process, related hardware can be instructed to complete by computer program, program to can be stored in one computer-readable
It takes in storage medium, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, storage medium
It can be magnetic disk, CD, read-only memory (ROM) or random access memory (RAM) etc..The implementation of above-mentioned computer program
Example, can achieve the identical or similar effect of corresponding aforementioned any means embodiment.
In addition, typically, device disclosed by the embodiments of the present invention, equipment etc. can be various electric terminal equipments, such as hand
Machine, personal digital assistant (PDA), tablet computer (PAD), smart television etc., are also possible to large-scale terminal device, such as server
Deng, therefore protection scope disclosed by the embodiments of the present invention should not limit as certain certain types of device, equipment.The present invention is implemented
Client disclosed in example, which can be, is applied to any one of the above electricity with the combining form of electronic hardware, computer software or both
In sub- terminal device.
In addition, disclosed method is also implemented as the computer program executed by CPU according to embodiments of the present invention, it should
Computer program may be stored in a computer readable storage medium.When the computer program is executed by CPU, the present invention is executed
The above-mentioned function of being limited in method disclosed in embodiment.
In addition, above method step and system unit also can use controller and for storing so that controller is real
The computer readable storage medium of the computer program of existing above-mentioned steps or Elementary Function is realized.
In addition, it should be appreciated that the computer readable storage medium (for example, memory) of this paper can be volatibility and deposit
Reservoir or nonvolatile memory, or may include both volatile memory and nonvolatile memory.As an example and
Unrestricted, nonvolatile memory may include read-only memory (ROM), programming ROM (PROM), electrically programmable ROM
(EPROM), electrically erasable programmable ROM (EEPROM) or flash memory.Volatile memory may include that arbitrary access is deposited
Reservoir (RAM), the RAM can serve as external cache.As an example and not restrictive, RAM can be with a variety of
Form obtains, such as synchronous random access memory (DRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate SDRAM (DDR
SDRAM), enhance SDRAM (ESDRAM), synchronization link DRAM (SLDRAM) and directly Rambus RAM (DRRAM).Institute is public
The storage equipment for the aspect opened is intended to the memory of including but not limited to these and other suitable type.
Those skilled in the art will also understand is that, various illustrative logical blocks, mould in conjunction with described in disclosure herein
Block, circuit and algorithm steps may be implemented as the combination of electronic hardware, computer software or both.It is hard in order to clearly demonstrate
This interchangeability of part and software, with regard to various exemplary components, square, module, circuit and step function to its into
General description is gone.This function is implemented as software and is also implemented as hardware depending on concrete application and application
To the design constraint of whole system.The function that those skilled in the art can realize in various ways for every kind of concrete application
Can, but this realization decision should not be interpreted as causing a departure from range disclosed by the embodiments of the present invention.
Various illustrative logical blocks, module and circuit, which can use, in conjunction with described in disclosure herein is designed to
The following component of function here is executed to realize or execute: general processor, digital signal processor (DSP), dedicated integrated electricity
It is road (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete
Any combination of hardware component or these components.General processor can be microprocessor, but alternatively, processor can
To be any conventional processors, controller, microcontroller or state machine.Processor also may be implemented as calculating the group of equipment
Close, for example, the combination of DSP and microprocessor, multi-microprocessor, one or more microprocessors combination DSP and/or it is any its
Its this configuration.
The step of method in conjunction with described in disclosure herein or algorithm, can be directly contained in hardware, be held by processor
In capable software module or in combination of the two.Software module may reside within RAM memory, flash memory, ROM storage
Device, eprom memory, eeprom memory, register, hard disk, removable disk, CD-ROM or known in the art it is any its
In the storage medium of its form.Illustrative storage medium is coupled to processor, enables a processor to from the storage medium
Information is written to the storage medium in middle reading information.In an alternative, storage medium can be integral to the processor
Together.Pocessor and storage media may reside in ASIC.ASIC may reside in user terminal.In an alternative
In, it is resident in the user terminal that pocessor and storage media can be used as discrete assembly.
In one or more exemplary designs, function can be realized in hardware, software, firmware or any combination thereof.
If realized in software, can using function as one or more instruction or code may be stored on the computer-readable medium or
It is transmitted by computer-readable medium.Computer-readable medium includes computer storage media and communication media, which is situated between
Matter includes any medium for helping for computer program to be transmitted to another position from a position.Storage medium can be energy
Any usable medium being enough accessed by a general purpose or special purpose computer.As an example and not restrictive, the computer-readable medium
It may include that RAM, ROM, EEPROM, CD-ROM or other optical disc memory apparatus, disk storage equipment or other magnetic storages are set
It is standby, or can be used for carrying or storage form be instruct or the required program code of data structure and can by general or
Special purpose computer or any other medium of general or specialized processor access.In addition, any connection can suitably claim
For computer-readable medium.For example, if using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or all
It is if the wireless technology of infrared ray, radio and microwave to send software from website, server or other remote sources, then above-mentioned coaxial
Cable, fiber optic cable, twisted pair, DSL or such as wireless technology of infrared ray, radio and microwave are included in determining for medium
Justice.As used herein, disk and CD include compact disk (CD), it is laser disk, CD, digital versatile disc (DVD), soft
Disk, Blu-ray disc, wherein disk usually magnetically reproduce data, and CD using laser optics reproduce data.Above content
Combination should also be as being included in the range of computer-readable medium.
It is exemplary embodiment disclosed by the invention above, it should be noted that in the sheet limited without departing substantially from claim
Under the premise of inventive embodiments scope of disclosure, it may be many modifications and modify.According to open embodiment described herein
The function of claim to a method, step and/or movement be not required to the execution of any particular order.In addition, although the present invention is implemented
Element disclosed in example can be described or be required in the form of individual, but be unless explicitly limited odd number, it is understood that be multiple.
It should be understood that it is used in the present context, unless the context clearly supports exceptions, singular " one
It is a " it is intended to also include plural form.It is to be further understood that "and/or" used herein refers to including one or one
Any and all possible combinations of a above project listed in association.
It is for illustration only that the embodiments of the present invention disclose embodiment sequence number, does not represent the advantages or disadvantages of the embodiments.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
Complete, relevant hardware can also be instructed to complete by program, program can store in a kind of computer-readable storage
In medium, storage medium mentioned above can be read-only memory, disk or CD etc..
It should be understood by those ordinary skilled in the art that: the discussion of any of the above embodiment is exemplary only, not
It is intended to imply that range disclosed by the embodiments of the present invention (including claim) is limited to these examples；In the think of of the embodiment of the present invention
Under road, it can also be combined between the technical characteristic in above embodiments or different embodiments, and there is this hair as above
Many other variations of the different aspect of bright embodiment, for simplicity, they are not provided in details.Therefore, all in the present invention
Within the spirit and principle of embodiment, any omission, modification, equivalent replacement, improvement for being made etc. be should be included in of the invention real
It applies within the protection scope of example.
Claims (10)
1. a kind of method for the difference loss for checking S parameter model, comprising steps of
S1, S parameter model is read；
S2, one in several port corresponding relationships is selected；
S3, the port corresponding relationship according to selection, the difference for calculating the S parameter model are lost and obtain difference loss song
Line；
S4, the correctness that the difference damage curve is judged according to preset condition；
S5, in response to the difference damage curve mistake, return step S2 is to select next port corresponding relationship, and response
It is correct in the difference damage curve, export the correct difference damage curve.
2. the method as described in claim 1, which is characterized in that step S3 further comprises:
S31, the port number for reading the S parameter model and be original matrix by the S parameter model conversion；
S32, according to the selected port corresponding relationship, convert difference S parameter matrix for the original matrix, and by its turn
It is melted into S parameter file；
S33, the difference damage curve is obtained using the S parameter file.
3. method according to claim 2, which is characterized in that read the port number of the S parameter model and by the S parameter
Model conversion is that original matrix includes: using sparameters function to obtain the port number of the S parameter model and by the S
Parameter model is converted to original matrix.
4. method according to claim 2, which is characterized in that, will be described original according to the selected port corresponding relationship
Matrix is converted into difference S parameter matrix, and converting it into S parameter file includes: using s2sdd function by the original matrix
It is converted into difference S parameter matrix, and converts it into S parameter file.
5. method according to claim 2, which is characterized in that obtain the difference damage curve using the S parameter file
It include: to obtain the difference damage curve using for circulation and rfplot function.
6. method as claimed in claim 5, which is characterized in that step S33 further comprises:
Insertion loss curve and return loss plot are obtained using for circulation and rfplot function.
7. method as claimed in claim 6, which is characterized in that the preset condition is the starting point of the insertion loss curve
Whether close to zero point.
8. the method as described in claim 1, which is characterized in that the integral multiple that the port number of the S parameter model is 4.
9. a kind of computer equipment, comprising:
At least one processor；And
Memory, the memory are stored with the computer program that can be run on the processor, which is characterized in that the place
Manage the method executed as described in claim 1-8 any one when device executes described program.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In perform claim requires method described in 1-8 any one when the computer program is executed by processor.
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| CN201910056475.5A CN109815585A (en) | 2019-01-22 | 2019-01-22 | A kind of method and equipment of difference loss that checking S parameter model |
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| CN201910056475.5A CN109815585A (en) | 2019-01-22 | 2019-01-22 | A kind of method and equipment of difference loss that checking S parameter model |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114363205A (en) * | 2021-12-17 | 2022-04-15 | 苏州浪潮智能科技有限公司 | High-speed link impedance mutation analysis method, system, terminal and storage medium |
-
2019
- 2019-01-22 CN CN201910056475.5A patent/CN109815585A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114363205A (en) * | 2021-12-17 | 2022-04-15 | 苏州浪潮智能科技有限公司 | High-speed link impedance mutation analysis method, system, terminal and storage medium |
| CN114363205B (en) * | 2021-12-17 | 2023-08-25 | 苏州浪潮智能科技有限公司 | High-speed link impedance mutation analysis method, system, terminal and storage medium |
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Application publication date: 20190528 |