CN106330596A - Signal detection method and signal detection device - Google Patents
Signal detection method and signal detection device Download PDFInfo
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- CN106330596A CN106330596A CN201510388679.0A CN201510388679A CN106330596A CN 106330596 A CN106330596 A CN 106330596A CN 201510388679 A CN201510388679 A CN 201510388679A CN 106330596 A CN106330596 A CN 106330596A
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- data
- test point
- region
- eye pattern
- bit error
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/24—Testing correct operation
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Dc Digital Transmission (AREA)
Abstract
The invention discloses a signal detection method and a signal detection device. The method comprises the following steps: synchronously receiving a data code flow at a standard voltage threshold according to a clock recovered from a data code flow to get first data of a benchmark test point; synchronously receiving a data code flow at different voltage thresholds by use of clocks of different phases to get second data of different test points; and generating an eye pattern according to the first data of the benchmark test point and the second data of the test points to detect the signal quality. According to the scheme of the invention, a data code flow is detected through an eye pattern of the data code flow, and detection of the quality of signals in a physical layer is realized.
Description
Technical field
The present invention relates to signal processing technology, a kind of method and apparatus detecting signal.
Background technology
In modern communications equipment, signal quality is undoubtedly one of of paramount importance parameter.Along with telecommunications industry
Development, the requirement to signal quality is also more and more higher: on the one hand, it is ensured that and improve signal matter
Amount；On the other hand, it is also desirable to the signal quality of business is monitored and makes corresponding decision-making, permissible
Evade the generation of great quality accident more in time, it is also possible to present the feelings of the signal quality that equipment runs
Condition.
Certainly, although have certain methods to detect the quality of signal, such as cyclic redundancy check (CRC) from side
Code (CRC, Cyclic Redundancy Check) detection, i.e. at transmitting terminal according to k position to be transmitted
Binary code sequence, produces r position picket code (CRC code) of a verification with certain rule, attached
In raw information back, constitute a new binary code sequence number (k+r) position altogether, then send.
At receiving terminal, the rule according to being followed between information code and CRC code is tested, to determine in transmission
Whether make mistakes.But these methods can only detect the signal quality of link layer, and cannot detect the letter of physical layer
Number quality.
Summary of the invention
In order to solve the problems referred to above, the present invention proposes a kind of method and apparatus detecting signal, it is possible to inspection
Survey the signal quality of physical layer.
In order to achieve the above object, the present invention proposes a kind of method detecting signal, including:
Obtain at standard voltage threshold synchronous receiving data code stream according to the clock recovered from data code flow
First data of benchmark test point；
The clock being respectively adopted out of phase obtains difference at different voltage threshold synchronous receiving data code streams
Second data of test point；
The first data according to benchmark test point and the second data genaration eye pattern of each test point, right to realize
The detection of signal quality.
Preferably, also include before the method:
UI region, unit gap is divided into multiple region, pre-sets and divide each region and behaviour obtained
Corresponding relation between work；
The method also includes:
Determine the region at the eye pattern place of generation, described corresponding relation is searched the region determined corresponding
Operation, perform the operation that finds.
Preferably, described operation includes following combination in any: red alarm, pretection switch, yellow alarm.
Preferably, described the first data according to benchmark test point and the second data genaration eye of each test point
Figure includes:
According to described first data and the error code of the second each described test point of data acquisition of each described test point
Rate；
Connect together formation eye pattern by test point identical for the described bit error rate.
Preferably, described according to the first data with the error code of the second each test point of data acquisition of each test point
Rate includes:
According to formulaCalculate the bit error rate of each described test point；
Wherein, SER is the bit error rate of each described test point, and N is in the second data of each described test point
The number of the code element different from described first data；M is second data or described of each described test point
The code element sum of one data.
The invention allows for a kind of device detecting signal, at least include:
Receiver module, for synchronizing to connect at standard voltage threshold according to the clock recovered from data code flow
Receive data code flow and obtain the first data of benchmark test point；It is respectively adopted the clock of out of phase different
Voltage threshold synchronous receiving data code stream obtains the second data of different test point；
Generation module, for the first data according to benchmark test point and the second data genaration of each test point
Eye pattern, to realize the detection to signal quality.
Preferably, also include:
Module is set, for UI region, unit gap is divided into multiple region, pre-sets and divide
Corresponding relation between each region and the operation arrived；
Perform module, for determining the region at the eye pattern place of generation, search really in described corresponding relation
The operation that the region made is corresponding, performs the operation found.
Preferably, described generation module specifically for:
According to described first data and the error code of the second each described test point of data acquisition of each described test point
Rate；Connect together formation eye pattern by test point identical for the described bit error rate.
Preferably, described generation module specifically for:
According to formulaCalculate the bit error rate of each described test point；Wherein, SER is each described survey
The bit error rate of pilot, N is code element different from described first data in the second data of each described test point
Number；M is the second data or the code element sum of described first data of each described test point；By described
The test point that the bit error rate is identical connects together formation eye pattern.
Compared with prior art, the present invention includes: according to the clock recovered from data code flow in standard
Voltage threshold synchronous receiving data code stream obtains the first data of benchmark test point；It is respectively adopted out of phase
Clock obtain the second data of different test point at different voltage threshold synchronous receiving data code streams；Root
According to the first data and the second data genaration eye pattern of each test point of benchmark test point, to realize signal matter
The detection of amount.By the solution of the present invention, by the eye pattern of data code flow, data code flow is detected,
Achieve the detection of the signal quality to physical layer.
Accompanying drawing explanation
Illustrating the accompanying drawing in the embodiment of the present invention below, the accompanying drawing in embodiment is for this
Bright is further appreciated by, and is used for explaining the present invention, is not intended that and the present invention is protected model together with description
The restriction enclosed.
Fig. 1 is the flow chart that the present invention detects the method for signal；
Fig. 2 is the schematic diagram in UI region of the present invention；
Fig. 3 (a) is that UI region is divided into mutually nested foursquare schematic diagram by the present invention；
Fig. 3 (b) is that UI region is divided into mutually nested rectangular schematic diagram by the present invention；
Fig. 3 (c) is that UI region is divided into mutually nested circular schematic diagram by the present invention；
Fig. 3 (d) is that UI region is divided into mutually nested oval schematic diagram by the present invention；
Fig. 4 is the structure composition schematic diagram that the present invention detects the device of signal.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with the accompanying drawings the present invention is further retouched
State, can not be used for limiting the scope of the invention.It should be noted that in the case of not conflicting,
Embodiment in the application and the various modes in embodiment can be mutually combined.
Seeing Fig. 1, the present invention proposes a kind of method detecting signal, including:
The clock that step 100, basis recover from data code flow synchronizes to receive number at standard voltage threshold
The first data of benchmark test point are obtained according to code stream.
In this step, how to synchronize to connect according to the clock recovered from data code flow and standard voltage threshold
Receive data code flow to obtain the first data of benchmark test point and belong to the known technology of those skilled in the art, and
It is not intended to limit the scope of the invention, repeats no more here.
In this step, benchmark test point refers in the coordinate system as coordinate axes with voltage threshold and clock,
Point corresponding to the clock recovered from data code flow and standard voltage threshold.
Step 101, it is respectively adopted the clock of out of phase at different voltage threshold synchronous receiving data codes
Stream obtains the second data of different test point.
In this step, the clock how being respectively adopted out of phase synchronizes to receive number at different voltage thresholds
Obtain the second data of different test point according to code stream and belong to the known technology of those skilled in the art, and need not
In limiting protection scope of the present invention, repeat no more here.
In this step, each test point refers in the coordinate system as coordinate axes with voltage threshold and clock, respectively
Point corresponding to clock and each voltage threshold.
Wherein, step 100 and step 101 order in no particular order performs.
Step 102, according to the first data of benchmark test point and the second data genaration eye pattern of each test point,
To realize the detection to signal quality.
The first data and the second data genaration eye pattern of each test point according to benchmark test point include:
According to the first data and the bit error rate of the second each test point of data acquisition of each test point；By the bit error rate
Identical test point connects together formation eye pattern.
Wherein, include according to the bit error rate of the first data and the second each test point of data acquisition of each test point:
According to formulaCalculate the bit error rate of each test point；
Wherein, SER is the bit error rate of each test point, N be each test point the second data in first number
Number according to different code elements；M is the second data or the code element sum of the first data of each test point.
Wherein, the difference between the value of M to adjacent two bit error rates is relevant.Such as, if adjacent two
Difference between the individual bit error rate is 10-9, then M requires more than 109.
In this step,
Also include before the method:
Unit gap (UI, Unit Interval) region is divided into multiple region, pre-sets and divide
Corresponding relation between each region and the operation arrived.
Wherein, UI region refers to maximum voltage value on UI on clock coordinates axle and voltage threshold coordinate axes
And the region corresponding to the difference between minimum amount of voltage that, as shown in Figure 2.
Wherein, when UI region is divided, mutually nested arbitrary graphic can be divided into, as
Square, rectangle, circle, ellipse etc., as shown in Fig. 3 (a)～(d).
The method also includes:
Step 103, determine the region at the eye pattern place of generation, corresponding relation is searched the district determined
The operation that territory is corresponding, performs the operation found.
In this step, the region at the eye pattern place of generation can be determined by the point on eye pattern.Such as,
If exceeding a number of point on eye pattern and falling in a certain region, then explanation eye pattern falls on the area.
Eye pattern can simultaneously fall on one or more region, when eye pattern falls on multiple regions, and can be according to
Priority level performs the operation that each region is corresponding successively, it is also possible to only carry out the region pair that priority level is the highest
The operation answered, it is also possible to determine the highest-ranking region in the region at eye pattern place.
Wherein it is possible to it is the highest to arrange area preference rank the most inward.
In this step, operate and include but not limited to following combination in any: red alarm, pretection switch, Huang
Color alarm etc..
By the solution of the present invention, by the eye pattern of data code flow, data code flow is detected, it is achieved that
Detection to the signal quality of physical layer.
See Fig. 4, the invention allows for a kind of device detecting signal, it is characterised in that at least wrap
Include:
Receiver module, for synchronizing to connect at standard voltage threshold according to the clock recovered from data code flow
Receive data code flow and obtain the first data of benchmark test point；It is respectively adopted the clock of out of phase different
Voltage threshold synchronous receiving data code stream obtains the second data of different test point；
Generation module, for the first data according to benchmark test point and the second data genaration of each test point
Eye pattern, to realize the detection to signal quality.
In assembly of the invention, also include:
Module is set, for UI region is divided into multiple region, pre-sets and divide each district obtained
Corresponding relation between territory and operation；
Perform module, for determining the region at the eye pattern place of generation, search in corresponding relation and determine
Operation corresponding to region, perform the operation found.
In assembly of the invention, generation module specifically for:
According to the first data and the bit error rate of the second each test point of data acquisition of each test point；By the bit error rate
Identical test point connects together formation eye pattern.
In assembly of the invention, generation module specifically for:
According to formulaCalculate the bit error rate of each test point；Wherein, SER is the mistake of each test point
Code check, N is the number of code elements different from the first data in the second data of each test point；M is each survey
Second data of pilot or the code element sum of the first data；Connect together shape by test point identical for the bit error rate
Become eye pattern.
Understand it should be noted that embodiment described above is for only for ease of those skilled in the art
, it is not limited to protection scope of the present invention, in the premise of the inventive concept without departing from the present invention
Under, any obvious replacement that the present invention is made by those skilled in the art and improvement etc. are all at this
Within the protection domain of invention.
Claims (9)
1. the method detecting signal, it is characterised in that including:
Obtain at standard voltage threshold synchronous receiving data code stream according to the clock recovered from data code flow
First data of benchmark test point；
The clock being respectively adopted out of phase obtains difference at different voltage threshold synchronous receiving data code streams
Second data of test point；
The first data according to benchmark test point and the second data genaration eye pattern of each test point, right to realize
The detection of signal quality.
Method the most according to claim 1, it is characterised in that also include before the method:
UI region, unit gap is divided into multiple region, pre-sets and divide each region and behaviour obtained
Corresponding relation between work；
The method also includes:
Determine the region at the eye pattern place of generation, described corresponding relation is searched the region determined corresponding
Operation, perform the operation that finds.
Method the most according to claim 2, it is characterised in that described operation includes following any group
Close: red alarm, pretection switch, yellow alarm.
4. according to the method described in claim 1 or 2 or 3, it is characterised in that described according to benchmark survey
First data of pilot and the second data genaration eye pattern of each test point include:
According to described first data and the error code of the second each described test point of data acquisition of each described test point
Rate；
Connect together formation eye pattern by test point identical for the described bit error rate.
Method the most according to claim 4, it is characterised in that described according to the first data with each survey
The bit error rate of the second each test point of data acquisition of pilot includes:
According to formulaCalculate the bit error rate of each described test point；
Wherein, SER is the bit error rate of each described test point, and N is in the second data of each described test point
The number of the code element different from described first data；M is second data or described of each described test point
The code element sum of one data.
6. the device detecting signal, it is characterised in that at least include:
Receiver module, for synchronizing to connect at standard voltage threshold according to the clock recovered from data code flow
Receive data code flow and obtain the first data of benchmark test point；It is respectively adopted the clock of out of phase different
Voltage threshold synchronous receiving data code stream obtains the second data of different test point；
Generation module, for the first data according to benchmark test point and the second data genaration of each test point
Eye pattern, to realize the detection to signal quality.
Device the most according to claim 6, it is characterised in that also include:
Module is set, for UI region, unit gap is divided into multiple region, pre-sets and divide
Corresponding relation between each region and the operation arrived；
Perform module, for determining the region at the eye pattern place of generation, search really in described corresponding relation
The operation that the region made is corresponding, performs the operation found.
8. according to the device described in claim 6 or 7, it is characterised in that described generation module is specifically used
In:
According to described first data and the error code of the second each described test point of data acquisition of each described test point
Rate；Connect together formation eye pattern by test point identical for the described bit error rate.
9. according to the device described in claim 6 or 7, it is characterised in that described generation module is specifically used
In:
According to formulaCalculate the bit error rate of each described test point；Wherein, SER is each described survey
The bit error rate of pilot, N is code element different from described first data in the second data of each described test point
Number；M is the second data or the code element sum of described first data of each described test point；By described
The test point that the bit error rate is identical connects together formation eye pattern.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510388679.0A CN106330596A (en) | 2015-07-03 | 2015-07-03 | Signal detection method and signal detection device |
| PCT/CN2016/075991 WO2016177088A1 (en) | 2015-07-03 | 2016-03-09 | Method and apparatus for detecting signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510388679.0A CN106330596A (en) | 2015-07-03 | 2015-07-03 | Signal detection method and signal detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106330596A true CN106330596A (en) | 2017-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510388679.0A Withdrawn CN106330596A (en) | 2015-07-03 | 2015-07-03 | Signal detection method and signal detection device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106330596A (en) |
| WO (1) | WO2016177088A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111835581B (en) * | 2020-06-17 | 2021-09-17 | 中车青岛四方机车车辆股份有限公司 | Ethernet physical layer signal testing method and system |
| CN112748325A (en) * | 2020-12-29 | 2021-05-04 | 海光信息技术股份有限公司 | Eye pattern testing method, device and equipment |
| CN115378845A (en) * | 2022-08-17 | 2022-11-22 | 深圳市紫光同创电子有限公司 | Eye pattern scanning method, device, equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719732A (en) * | 2004-07-05 | 2006-01-11 | 友达光电股份有限公司 | Time pulse return apparatus of low voltage differential signal and method thereof |
| CN1725648A (en) * | 2004-07-23 | 2006-01-25 | 安捷伦科技有限公司 | Analog waveform information from binary sampled measurements |
| CN104378321A (en) * | 2014-11-26 | 2015-02-25 | 英特格灵芯片(天津)有限公司 | Method and circuit for integrating adaptive equalization parameter adjusting and transmission performance testing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201422114Y (en) * | 2009-03-31 | 2010-03-10 | 成都纵横测控技术有限公司 | Error code rate test module based on PXI bus |
| TWI430640B (en) * | 2010-07-21 | 2014-03-11 | Global Unichip Corp | Clock data recovery system |
| CN102681925A (en) * | 2011-03-10 | 2012-09-19 | 鸿富锦精密工业（深圳）有限公司 | Serial peripheral device interface bus test system and method |
| CN104301035B (en) * | 2014-10-17 | 2017-03-29 | 深圳市易飞扬通信技术有限公司 | For testing the detection means of SFP |
| CN104502835B (en) * | 2014-12-09 | 2017-05-17 | 中国航空工业集团公司第六三一研究所 | Serial link in-chip signal quality oscilloscope circuit and method |
-
2015
- 2015-07-03 CN CN201510388679.0A patent/CN106330596A/en not_active Withdrawn
-
2016
- 2016-03-09 WO PCT/CN2016/075991 patent/WO2016177088A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719732A (en) * | 2004-07-05 | 2006-01-11 | 友达光电股份有限公司 | Time pulse return apparatus of low voltage differential signal and method thereof |
| CN1725648A (en) * | 2004-07-23 | 2006-01-25 | 安捷伦科技有限公司 | Analog waveform information from binary sampled measurements |
| CN104378321A (en) * | 2014-11-26 | 2015-02-25 | 英特格灵芯片(天津)有限公司 | Method and circuit for integrating adaptive equalization parameter adjusting and transmission performance testing |
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| WO2016177088A1 (en) | 2016-11-10 |
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