CN108234381A - Method for compensating signal and device - Google Patents
Method for compensating signal and device Download PDFInfo
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- CN108234381A CN108234381A CN201711498502.1A CN201711498502A CN108234381A CN 108234381 A CN108234381 A CN 108234381A CN 201711498502 A CN201711498502 A CN 201711498502A CN 108234381 A CN108234381 A CN 108234381A
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- high level
- target
- compensation value
- signal
- eye high
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
- H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/58—Compensation for non-linear transmitter output
- H04B10/588—Compensation for non-linear transmitter output in external modulation systems
Abstract
An embodiment of the present invention provides a kind of method for compensating signal and devices, belong to signal handling equipment technical field.Method includes：A, signal to be modulated is modulated based on predesigned compensation value and obtains default eye high level；B, target compensation value is obtained according to default adjustment rule according to predesigned compensation value；C, signal to be modulated is modulated based on target compensation value and obtains target eye high level；D, judge whether target eye high level is more than default eye high level, when target eye high level is more than default eye high level, update predesigned compensation value is target compensation value, continues to execute step A.It is only just capable of determining that the optimal compensation value for steady-state signal in a manner that simple cycle compares, so that the operand of this method when being executed is small, the threshold requirement of the hardware to performing this method is greatly reduced, so that this method can obtain application universal extensively.
Description
Technical field
The present invention relates to signal handling equipment technical field, in particular to a kind of method for compensating signal and device.
Background technology
Development recently as the communication technology improves, and is broken out using data center, big data as typical technology
The large-scale application of formula.Thus, the various network equipments for data communication for example, too network switch, gateway or router etc.,
Extremely wide application has also been obtained on the basis of with above-mentioned technology.
Invention content
In view of this, the purpose of the present invention is to provide a kind of method for compensating signal and devices.
The embodiment of the present invention is realized in the following way：
In a first aspect, an embodiment of the present invention provides a kind of method for compensating signal, the method includes：A, based on default benefit
It repays value and modulates the default eye high level of signal acquisition to be modulated；B, target is obtained according to default adjustment rule according to the predesigned compensation value
Offset；C, target eye high level is obtained based on the target compensation value modulation signal to be modulated；D, judge the target eye
Whether high level is more than the default eye high level, when the target eye high level is more than the default eye high level, updates described default
Offset is the target compensation value, continues to execute step A.
In embodiments of the present invention, be primarily based on predesigned compensation value modulate signal to be modulated obtain default eye high level and
Target compensation value is obtained according to default adjustment rule according to predesigned compensation value；So by waiting to adjust target compensation value to current
Signal processed is modulated, so as to obtain corresponding target eye high level.Again by judging it is high whether target eye high level is more than default eye
Value.Thus when target eye high level is more than default eye high level, and it is target compensation value to update predesigned compensation value, under being performed with return
Primary multilevel iudge.Target eye high level and default eye high level are compared by it by constantly recycling, therefore can be multiple
Comparison determine the target eye high level of maximum value, and then the offset corresponding to the target eye high level of the maximum value is to be modulated
Interference when signal compensation is modulated is minimum.Therefore, only the optimal compensation is just capable of determining that in a manner that simple cycle compares
Value so that the operand of this method when being executed is small, greatly reduces the threshold requirement of the hardware to performing this method, thus makes
Application universal extensively can be obtained by obtaining this method.
It is in stepb, described in some possible realization methods with reference to the technical solution that above-mentioned first aspect provides
Target compensation value is obtained according to default adjustment rule according to the predesigned compensation value, including：The predesigned compensation value is increased by one
Preset value obtains the target compensation value.
In embodiments of the present invention, by way of obtaining target compensation value increasing preset value to predesigned compensation value, make
The offset for needing to carry out high bandwidth compensation can accurately be determined in a manner that cycle compares by obtaining.It is and default by increasing
The plain mode of value just can accurately obtain the effect of needs, the applicability of the method further improved.
It is in step D, described in some possible realization methods with reference to the technical solution that above-mentioned first aspect provides
Judge whether the target eye high level is more than after the default eye high level.The method further includes：In the target eye high level
During no more than the default eye high level, the predesigned compensation value is reduced into the preset value, obtains the target compensation value；It performs
Step C.
In embodiments of the present invention, after the offset for determining to need to carry out high bandwidth compensation, additionally it is possible to by pre-
If offset reduces preset value to obtain the mode of target compensation value so that is compared by cycle and also is able to accurately determine to need
Carry out the offset of low bandwidth compensation.Its simple realization mode by reducing preset value is obtained previous for high bandwidth
While the offset of compensation, additionally it is possible to obtain the offset for low bandwidth compensation, the method being greatly improved is fitted
The property used.
It is in stepb, described in some possible realization methods with reference to the technical solution that above-mentioned first aspect provides
Target compensation value is obtained according to default adjustment rule according to the predesigned compensation value.Including：The predesigned compensation value is reduced one
Preset value obtains the target compensation value.
In embodiments of the present invention, by way of obtaining target compensation value reducing preset value to predesigned compensation value, make
The offset for needing to carry out low bandwidth compensation can accurately be determined in a manner that cycle compares by obtaining.It is and default by reducing
The plain mode of value just can accurately obtain the effect of needs, the applicability of the method further improved.
It is in step D, described in some possible realization methods with reference to the technical solution that above-mentioned first aspect provides
Judge whether the target eye high level is more than after the default eye high level.The method further includes：In the target eye high level
During no more than the default eye high level, the predesigned compensation value is increased into the preset value, obtains the target compensation value；It performs
Step C.
In embodiments of the present invention, after the offset for determining to need to carry out low bandwidth compensation, additionally it is possible to by pre-
If offset increases preset value to obtain the mode of target compensation value so that is compared by cycle and also is able to accurately determine to need
Carry out the offset of high bandwidth compensation.Its simple realization mode by increasing preset value is obtained previous for low bandwidth
While the offset of compensation, additionally it is possible to obtain the offset for high bandwidth compensation, the method being greatly improved is fitted
The property used.
It is in step D, described in some possible realization methods with reference to the technical solution that above-mentioned first aspect provides
Judge whether the target eye high level is more than after the default eye high level.The method further includes：In the target eye high level
During no more than the default eye high level, it is target compensation value to determine the predesigned compensation value；Terminate this flow.
In embodiments of the present invention, during judgement, if target eye high level is less than default eye high level, illustrate
The default eye high level before target eye high level is for best offset, and then terminates this flow, simple to make it through
Mode receives flow in the optimum efficiency that accurate acquisition needs, the applicability of the method further improved.
Second aspect, an embodiment of the present invention provides a kind of signal compensation apparatus, described device includes：First modulation mould
Block modulates the default eye high level of signal acquisition to be modulated for being based on predesigned compensation value.Module is obtained, for according to the default benefit
It repays value and obtains target compensation value according to default adjustment rule.Second modulation module, for being based on the target compensation value modulation institute
It states signal to be modulated and obtains target eye high level.Judgment module, for judging whether the target eye high level is more than the default eye
High level when the target eye high level is more than the default eye high level, updates the predesigned compensation value for the target compensation value,
So that first modulation module is continued to execute described obtained based on predesigned compensation value modulation signal to be modulated and presets eye high level.
In embodiments of the present invention, signal compensation apparatus is primarily based on predesigned compensation value modulation signal to be modulated and is preset
Eye high level and according to predesigned compensation value according to it is default adjustment rule obtain target compensation value.So signal compensation apparatus passes through
Target compensation value is modulated current signal to be modulated, so as to obtain corresponding target eye high level.Again by judging mesh
Mark whether eye high level is more than default eye high level.Thus when target eye high level is more than default eye high level, and update predesigned compensation value
For target compensation value, to return to the multilevel iudge performed next time.Signal compensation apparatus is by constantly recycling target eye height
Value and default eye high level are compared, therefore the target eye high level of maximum value can be determined in multiple comparison, and then the maximum
Offset corresponding to the target eye high level of value treats interference minimum during modulated signal Compensation Modulation.Therefore, signal compensation fills
It puts and the optimal compensation value is only just capable of determining that in a manner that simple cycle compares so that the operand of the device when being executed
It is small, the threshold requirement of the hardware to performing the device is greatly reduced, so that the device can obtain extensive universal answer
With.
With reference to the technical solution that above-mentioned second aspect provides, in some possible realization methods, the acquisition module tool
Body is used to the predesigned compensation value increasing by a preset value, obtains the target compensation value.
In embodiments of the present invention, by way of obtaining target compensation value increasing preset value to predesigned compensation value, make
The offset for needing to carry out high bandwidth compensation can accurately be determined in a manner that cycle compares by obtaining.It is and default by increasing
The plain mode of value just can accurately obtain the effect of needs, the applicability of the device further improved.
With reference to the technical solution that above-mentioned second aspect provides, in some possible realization methods, the signal compensation dress
It puts and further includes：Third modulation module, when being not more than the default eye high level for the target eye high level, by the predesigned compensation
Value reduces the preset value, obtains the target compensation value；And so that second modulation module is continued to execute based on the mesh
It marks the offset modulation signal to be modulated and obtains target eye high level
In embodiments of the present invention, after the offset for determining to need to carry out low bandwidth compensation, additionally it is possible to by pre-
If offset increases preset value to obtain the mode of target compensation value so that is compared by cycle and also is able to accurately determine to need
Carry out the offset of high bandwidth compensation.Its simple realization mode by increasing preset value is obtained previous for low bandwidth
While the offset of compensation, additionally it is possible to obtain the offset for high bandwidth compensation, the device being greatly improved is fitted
The property used.
With reference to the technical solution that above-mentioned second aspect provides, in some possible realization methods, the acquisition module is also
Specifically for the predesigned compensation value is reduced a preset value, the target compensation value is obtained.
In embodiments of the present invention, by way of obtaining target compensation value reducing preset value to predesigned compensation value, make
The offset for needing to carry out low bandwidth compensation can accurately be determined in a manner that cycle compares by obtaining.It is and default by reducing
The plain mode of value just can accurately obtain the effect of needs, the applicability of the device further improved.
With reference to the technical solution that above-mentioned second aspect provides, in some possible realization methods, the signal compensation dress
It puts and further includes：4th modulation module, for the target eye high level be not more than the default eye high level when, by the default benefit
Repaying value increases the preset value, obtains the target compensation value；And so that second modulation module is continued to execute based on described
The target compensation value modulation signal to be modulated obtains target eye high level.
In embodiments of the present invention, after the offset for determining to need to carry out low bandwidth compensation, additionally it is possible to by pre-
If offset increases preset value to obtain the mode of target compensation value so that is compared by cycle and also is able to accurately determine to need
Carry out the offset of high bandwidth compensation.Its simple realization mode by increasing preset value is obtained previous for low bandwidth
While the offset of compensation, additionally it is possible to obtain the offset for high bandwidth compensation, the device being greatly improved is fitted
The property used.
With reference to the technical solution that above-mentioned second aspect provides, in some possible realization methods, the signal compensation dress
It puts and further includes：Terminate module is performed, it is described default for when the target eye high level is not more than the default eye high level, determining
Offset is target compensation value；Terminate this flow.
In embodiments of the present invention, during judgement, if target eye high level is less than default eye high level, illustrate
The default eye high level before target eye high level is for best offset, and then terminates this flow, simple to make it through
Mode receives flow in the optimum efficiency that accurate acquisition needs, the applicability of the device further improved.
The third aspect, an embodiment of the present invention provides a kind of network equipment, including：Processor and read/write memory medium,
The read/write memory medium is stored with computer program instructions, is read from the read/write memory medium in the processor
And when running the computer program instructions, the step of performing the method for compensating signal.
Fourth aspect, an embodiment of the present invention provides a kind of computer read/write memory mediums, are stored thereon with computer
The step of method for compensating signal is realized when computer program described in program is performed by processing.
The advantageous effect of the embodiment of the present invention is：
The default eye high level of signal acquisition to be modulated is modulated by being primarily based on predesigned compensation value and according to predesigned compensation value
Target compensation value is obtained according to default adjustment rule；So by the way that target compensation value adjusts current signal to be modulated
System, so as to obtain corresponding target eye high level.Again by judging whether target eye high level is more than default eye high level.So as in target
When eye high level is more than default eye high level, and it is target compensation value to update predesigned compensation value, is sentenced with returning to the comparison performed next time
It is disconnected.Target eye high level and default eye high level are compared by it by constantly recycling, therefore can be determined in multiple comparison
The target eye high level of maximum value, and then the offset corresponding to the target eye high level of the maximum value treats modulated signal Compensation Modulation
When interference it is minimum.Therefore, the optimal compensation value is only just capable of determining that in a manner that simple cycle compares so that this method
Operand when being executed is small, the threshold requirement of the hardware to performing this method is greatly reduced, so that this method can
Obtain application universal extensively.
For the above objects, features and advantages of the present invention is enable to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows a kind of structure diagram for network equipment that first embodiment of the invention provides；
Fig. 2 shows a kind of first pass figures for method for compensating signal that second embodiment of the invention provides；
Fig. 3 shows a kind of second flow chart for method for compensating signal that second embodiment of the invention provides；
Fig. 4 shows a kind of third flow chart for method for compensating signal that second embodiment of the invention provides；
Fig. 5 shows a kind of first structure block diagram for signal compensation apparatus that third embodiment of the invention provides；
Fig. 6 shows a kind of the second structure diagram of signal compensation apparatus that third embodiment of the invention provides；
Fig. 7 shows a kind of third structure diagram for signal compensation apparatus that third embodiment of the invention provides；
Fig. 8 shows a kind of the 4th structure diagram of signal compensation apparatus that third embodiment of the invention provides.
Specific embodiment
With the development of the technologies such as data center, big data, to the network equipment in industry, special network communication equipment,
For example, the port communication rate requirement of the too equipment such as network switch, gateway or router is higher and higher or even has required to reach
10Gbps。
Under the traffic rate, communication chip institute's output signal is passed on network equipment interior circuit board in the network equipment
Very big attenuation can be generated when defeated, which can introduce intersymbol interference (Inter Symbol Interference, ISI), cause
The shake increase of signal, bandwidth reduce, and influence the transmitting of entire signal.Thus, the processor of the network equipment is needed to logical
The signal of oversampling circuit plate transmission compensates modulation, to make up the attenuation of signal.
At present, communication chip institute output signal includes in the network equipment：Steady-state signal and unstable signal.Wherein, stable state
Signal can be sent for the level of " 0 " or " 1 " of digital signal according to correct sequence, and unstable signal is " 0 " of digital signal
Or there is entanglement compared with normal sequence in level"1" transmission sequence.Specifically, the network equipment is when just powering on, due to processing
Device is temporarily in uncontrolled state, therefore the unstable signal that communication chip output duration is hundreds of milliseconds to two seconds, at it
Export steady-state signal again later.
Present inventor has found the stable state based on output during technical solution provided by the embodiments of the present application is realized
Signal and unstable signal, a kind of prior art scheme one used by compensated to signal can be no matter signal whether
For steady-state signal and unstable signal, modulation is compensated to signal.The modulation system of the first scheme is for steady
State signal, therefore the program meets the modulation demand to stable state waveform in most cases.Due to not going to distinguish stable state and unstable state, if
There is certain more special unstable signal, then can lead to the program in the follow-up accidentally benefit using maximum compensation to steady-state signal
Modulation is repaid, and then steady-state signal is caused to be distorted, seriously even resulting in can not communicate.The prior art is adopted being compensated to signal
Another scheme second is that adaptive mode, i.e. chip by from judging, being adjusted using a kind of compensation during in unstable signal
Mode processed, to being in steady-state signal then using another different Compensation Modulation mode.Although the second scheme can be kept away
The problem of exempting from scheme one, but scheme two is sufficiently complex from the realization process judged, needs to carry out a large amount of complex calculation.
Therefore scheme two is high to hardware performance requirements, according to the statistics to current landscape, the chip there are about at least 60% can not
Application scheme two.Therefore, the applicability of scheme two due to the threshold requirement to hardware it is excessively high and by strong influence.
The defects of present in above scheme of the prior art, be that inventor is obtaining after putting into practice and carefully studying
As a result, therefore, the solution that the discovery procedure of the above problem and the hereinafter embodiment of the present invention are proposed regarding to the issue above
Scheme all should be the contribution that inventor makes the present invention in process of the present invention.
Based on the studies above, an embodiment of the present invention provides a kind of method for compensating signal, device, the network equipment and computers
Read/write memory medium.Wherein, by compensating modulation to the signal to be modulated for being in stable state, and pass through cycle by this
The default eye high level of acquisition is compared after modulating obtained target eye high level and preceding primary modulation.It will by what is constantly recycled
Target eye high level and default eye high level are compared, and are determined corresponding to the target eye high level of maximum value by multiple comparison
Offset treats interference minimum during modulated signal Compensation Modulation.By avoiding processing unstable signal, and using simple cycle
Mode so that the operand of this method when being executed is small, greatly reduce to perform this method hardware threshold requirement, because
And it enables the method to obtain application universal extensively.
Below in conjunction with attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be configured to arrange and design with a variety of different herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Go out all other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.Term " first ", " the
Two " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
First embodiment
Referring to Fig. 1, an embodiment of the present invention provides a kind of network equipment 10, which can be that too net exchanges
Machine, for example, ten thousand mbit ethernet interchanger of high density.In the network equipment 10, which includes：Circuit board 11 leads to
Believe chip 12 and processor 13.
Circuit board 11 can be the circuit board of conventional type number, for example, pcb board (Printed Circuit Board, printing
Circuit board), FPC wiring boards (Flexible Printed Circuit board, flexible circuit board) etc..Circuit board 11 can be with
The size of adaptation network equipment 10 is arranged in the network equipment 10.Communication chip 12 and processor can also be set on circuit board 11
13, so that communication chip 12 and processor 13 realize electrical connection, and communication chip 12 and processor 13 exist by circuit board 11
Installation position on circuit board 11 can be selected according to actual conditions, and the present embodiment does not limit.
Communication chip 12 can be the communication chip of conventional type number, for example, leading to for 10,000,000,000 light that traffic rate is 10Gbps
Believe module.Communication chip 12 can generate signal to be modulated after power-up, and the transmitter of communication chip 12 will by circuit board 11
The signal to be modulated it is lasting be transmitted to processor 13.Wherein, communication chip 12 is raw in the preset duration after just powering on
Into and export be unstable state signal to be modulated, and by generating after the preset duration and what is exported is then treating for stable state
Modulated signal, the preset duration can be hundreds of milliseconds to two seconds.Further, the signal to be modulated warp that communication chip 12 exports
Processor 13 is then reached after the attenuation of oversampling circuit plate 11.
Processor 13 may be a kind of IC chip, have the processing capacity of data.Above-mentioned processor 13 can be with
It is general processor, including central processing unit (Central Processing Unit, CPU), network processing unit (Network
Processor, NP) etc..It can realize or perform each method, step and the logic diagram disclosed in the embodiment of the present invention.It is logical
It can be microprocessor with processor or the processor can also be any conventional processor etc..Processor 13 can be from readable
It takes and the computer program instructions is read and run in storage medium.By performing the computer program stored in memory, locate
The receiver of reason device 13 can receive pending signal by circuit board 11, therefore processor 13 is in the signal to be modulated for obtaining stable state
When, processor 13 can treat modulated signal and compensate modulation, and the target eye that this modulation is obtained for passing through cycle is high
Default eye high level is obtained after value and preceding primary modulation to be compared.It is high by target eye high level and default eye by constantly recycling
Value is compared, and the offset corresponding to the target eye high level of maximum value is determined by multiple comparison, and the offset should
Interference when treating modulated signal Compensation Modulation is minimum, and determines that treating modulated signal based on the offset is adjusted and defeated
Go out.
Second embodiment
Referring to Fig. 2, an embodiment of the present invention provides a kind of method for compensating signal, which is applied to network
Processor in equipment, the method for compensating signal include：Step A, step B, step C and step D.
Step A：Signal to be modulated is modulated based on predesigned compensation value and obtains default eye high level.
When processor is based on the execution of predesigned compensation value and treats modulated signal and compensate modulation, during to the execution of step A
Carving to be：When processor compensates modulation by treating modulated signal based on the execution of predesigned compensation value for the first time after powering on.
And since performing each time for method for compensating signal can be the cycle based on last time execution, therefore to the execution moment of step A
Can also be：Processor performs for the first time to be treated modulated signal and compensates modulation and obtain arbitrary between best offset
When one cycle starts.For ease of illustration and understand, in the present embodiment, the execution moment to step A is processor by powering on it
It is performed for the first time based on predesigned compensation value afterwards when treating modulated signal and compensating modulation, but it is not intended as to the present embodiment
It limits.
When processor treats modulated signal by execution for the first time after powering on and compensates modulation, still needed in processor
A predesigned compensation value is preset, in order to starting step A.The predesigned compensation value can be to treat modulated signal in processor
Before compensating modulation, developer after emulating in advance by storing into processor or storage peripheral hardware.
As a kind of mode, developer is specifically as follows by emulating acquisition predesigned compensation value in advance, and developer is first
It first can be by, to the computing function of passive device S parameter (scattering parameter), emulating what is exported in 3 D electromagnetic simulation software
Pending signal attenuation on circuit boards.Wherein, the attenuation meet can certain code requirement, such as 2dB to 6.5dB.It
Afterwards, developer reuses the active electric signal computing function of 3 D electromagnetic simulation software, and the attenuation obtained is put into
It is simulated in active environment, so as to obtain default benefit optimal in the ideal case by 3 D electromagnetic software emulation
Value is repaid, and the predesigned compensation value is prestored in processor.Wherein, which is based on the predesigned compensation value pair
After pending signal is modulated, the eye high level for obtaining modulated pending signal in eye pattern is maximum.
It should be noted that the figure of multiple eye-shapeds arranged side by side can be showed in the eye pattern of signal, in the figure of eye-shaped
The the eye height in shape the high, illustrates that the bandwidth of signal is wider, the interference of signal is smaller, signal is more stable.Therefore, eye height is simulated
It is worth maximum predesigned compensation value, as under simulation status, after being debugged by the predesigned compensation value to signal, the band of signal
Wide most wide, most stable, interference minimum.
It will be appreciated that the entire calculating process due to 3 D electromagnetic software is based on ecotopia, for example, temperature is only
25 DEG C can be fixed on, power supply ideal is unchanged, chip characteristics are completely the same, communication chip characteristic is completely the same etc..And in reality
Equipment operation in, technological level causes hardware environment to have difference and the difference in different time sections external environment, therefore three
The optimal offset that dimension electromagnetic software calculates is the optimal offset close to actual needs, and then can be by the advance emulation
The optimal offset obtained as the storage of predesigned compensation value in processor, with according to the predesigned compensation value come starting step
It performs, so that it is determined that going out the optimal offset of actual needs.
After processor and communication chip are both powered up, processor obtains the signal to be modulated of communication chip transmission first.
Due to first obtain after power-up be unstable state signal to be modulated, therefore processor is according to preset control program, not to this
The signal to be modulated of unstable state compensates modulation in preset duration, so as to avoid the to be modulated of the unstable state is modulated at this moment
Signal and lead to the modulation distortion to the signal to be modulated of stable state.
Later, processor is by the preset duration of setting, wherein, which can be 2 seconds, after ensuring 2 seconds
Obtained be stable state signal to be modulated.Whether the duration that processor judgement is passed through after powering on reaches preset duration.If
Not up to, then processor continues to keep judging.If reaching, processor judges that currently obtained is the letter to be modulated for stable state
Number.
When reaching preset duration, processor is according to pre-set predesigned compensation value to the signal to be modulated that obtains at this time
Modulation is compensated, and current time obtains modulated signal by predesigned compensation value come Compensation Modulation.Wherein, the modulation of processor
Mode can be that the balanced device inside processor compensates tune by predesigned compensation value to the signal to be modulated that this is obtained at this time
System, but it is not intended as the restriction of the present embodiment.Further, while processor exports the modulated signal, processor
Eye high level in the eye pattern of the current modulated signal is obtained, eye high level is then used as default eye high level in the eye pattern of the modulated signal,
And it is stored.Wherein, the mode of processor acquisition eye high level can be obtained for processor based on internal eye pattern simulator
Eye high level in the eye pattern of the modulated signal, but it is not intended as the restriction to the present embodiment.
Step B：Target compensation value is obtained according to default adjustment rule according to the predesigned compensation value.
After obtaining and storing default eye high level, according to preset control program, processor needs to obtain new processor
Offset modulate the signal to be modulated of lasting acquisition, i.e., processor will be obtained according to default adjustment rule based on predesigned compensation value
Obtain target compensation value.Wherein, it can be that processor is based on control program to obtain target compensation value based on predesigned compensation value, pre- at this
If increaseing or decreasing a preset value on the basis of offset, so as to obtain target compensation value, which is then used for rear
The continuous signal to be modulated obtained compensates modulation.
Step C：Target eye high level is obtained based on the target compensation value modulation signal to be modulated.
As communication chip continues to transmit to the signal to be modulated for being in stable state, processor also is able to also obtaining target
Current time after offset obtains the signal to be modulated in stable state.Processor is according to the target compensation value pair being obtained ahead of time
The signal to be modulated currently obtained compensates modulation, so as to obtain after Compensation Modulation in the modulated signal at current time.Its
In, the modulation system of processor may be that the balanced device inside processor is waited to locate by target compensation value to what this was currently obtained
Reason signal compensates modulation, but be not intended as the restriction of the present embodiment.
Later, processor is while the modulated signal obtained based on target compensation value is exported this moment, processing
Device also obtains corresponding target eye high level in the eye pattern of the modulated signal.Wherein, the mode of processor acquisition target eye high level can
Processor is thought based on internal eye pattern simulator to obtain eye high level in the eye pattern of the modulated signal obtained this moment, but not
As the restriction to the present embodiment.
It is stored at this point, processor can will obtain target eye high level, in order to the execution of follow-up process.
Step D：Judge whether the target eye high level is more than the default eye high level, be more than institute in the target eye high level
When stating default eye high level, the predesigned compensation value is updated for the target compensation value, continues to execute step A.
Default eye high level based on storage target eye high level and storage.Processor can be by target eye high level and default eye high level
It is compared, to judge whether target eye high level is more than default eye high level.By the analytical judgment to difference, processor can obtain
Two kinds of judging results.
The first judging result is that difference is negative or when zero, that is, determines that target eye high level is not more than default eye high level.At this point,
The judging result mark symbolizes, and the more stable of signal, bandwidth bigger and the interference signal modulated based on predesigned compensation value is less.
Since current target compensation value is not optimal selection, processor can be using predesigned compensation value as newest target
Offset.Further, processor then carries out signal based on the new target compensation value in follow-up obtain with modulated signal
Compensation Modulation simultaneously exports.And at this moment, processor determines that the method flow of optimal compensation value just terminates to perform.
Second of judging result is that difference is timing, that is, determines that target eye high level is more than default eye high level.At this point, the judgement
As a result it is less to symbolize the more stable of signal, bandwidth bigger and the interference signal modulated based on target compensation value for mark.But at this point,
Processor can not determine whether the target compensation value is exactly optimal selection, and processor can obtain a new default benefit
Value is repaid based on default adjustment rule and then obtains a new target compensation value, for example, the predesigned compensation that update processor is current
It is current target compensation value to obtain a new predesigned compensation value to be worth, and continues to execute step A.
That is, target compensation value is with timeline, which is a variable in variation, the present embodiment
In the value of target compensation value being previously mentioned every time it is individually corresponding with a moment, and the target compensation value being previously mentioned every time
Value and it is other when the value of target compensation value that is previously mentioned may be different.
Further, after update obtains new target compensation value again.At this point, processor returns again performs step A, from
And form cycle.It is understood that after at the moment, by cycle at least once, processor is then capable of determining that optimal
Offset.
It should be noted that step A is performed returning, and during the cycle execution of formation at least once, due to each moment
The signal source to be modulated obtained is identical so signal referred to as to be modulated, thus method is in the flow that cycle performs
Identical, but the essence for recycling signal to be modulated when performing is different.
Referring to Fig. 3, as the optional embodiment of the first in the present embodiment, processor is obtained according to predesigned compensation value
The mode of target compensation value can be that predesigned compensation value is increased a preset value.Wherein, increase a preset value can be 0.1dB,
0.5dB, 1dB, 2dB or 3dB etc..For while the execution efficiency for ensureing method for compensating signal, i.e., method for compensating signal cannot
Enough perform just determines an optimal offset many times, and also needs to ensure the accuracy of offset, i.e. preset value cannot be too
It is small can not be too big, optionally, preset value can be 1dB, but be not intended as the restriction to the present embodiment.
In stepb, it is held to described according to the predesigned compensation value according to default adjustment rule acquisition target compensation value
It is capable then be specially：
One preset value is increased by predesigned compensation value to obtain the target compensation value at current time.Further, based on pair
Predesigned compensation value increases preset value to obtain target compensation value, so as to when target eye high level is not more than default eye high level, handle
For device using predesigned compensation value as during optimal offset, which is the optimal compensation value of bandwidth maximum.
For ensure obtained optimal offset it is comprehensive, i.e., not only obtain the optimal compensation value of bandwidth maximum,
Also obtain the optimal compensation value of bandwidth minimum.Therefore after the optimal compensation value of bandwidth maximum is obtained by increasing preset value, place
Reason device can go to obtain the optimal compensation value of bandwidth minimum again.
I.e. after step D, method for compensating signal further includes：Step E.
Step E：It, will be described in predesigned compensation value reduction when the target eye high level is not more than the default eye high level
Preset value obtains the target compensation value；Perform step C.
When target eye high level is not more than default eye high level, i.e., it is being bandwidth by increasing preset value to obtain target compensation value
After maximum optimal compensation value, predesigned compensation value can be reduced by a preset value to regain the target at current time by processor again
Offset.Wherein, can be beforehand through emulation before method for compensating signal performs for reducing the predesigned compensation value of a preset value
Predesigned compensation value is obtained, but is not intended as the restriction to the present embodiment.Wherein, the preset value that is reduced is in the present embodiment
It selects also as 1dB, but also not as the restriction to the present embodiment.
The signal to be modulated for being in stable state is continued to transmit also with communication chip.Processor is obtained also according to by reducing
The signal to be modulated that the target compensation value obtained is currently obtained to being in current time compensates modulation, is adjusted so as to obtain compensation
The modulated signal at current time after system.Wherein, the modulation system of processor may be that the balanced device inside processor passes through mesh
Mark offset compensates modulation, but be not intended as the restriction of the present embodiment to the signal to be modulated that this is currently obtained.
Later, processor based on the target compensation value that the reduction obtains, and returns according to preset control program and performs step
Rapid C, so as to determine the optimal compensation value of a bandwidth minimum again by constantly returning to cycle execution.
When being also required to explanation, step C performed returning, and forming cycle at least once and perform, due to it is each when
It is different to carve the signal to be modulated that the signal to be modulated obtained obtains in itself from other moment, thus method is recycling
The flow of execution is identical, but the essence for recycling the processing signal to be modulated when performing is different.
Referring to Fig. 4, as second in the present embodiment optional embodiment, processor is obtained based on predesigned compensation value
The mode of target compensation value can be that predesigned compensation value is reduced a preset value.Wherein, preset value may be 1dB, but not
As the restriction to the present embodiment.
I.e. in second of optional embodiment, after step D, method for compensating signal further includes：Step F.
Step F：It, will be described in the predesigned compensation value increase when the target eye high level is not more than the default eye high level
Preset value obtains the target compensation value；Perform step C.
Compared to the first optional embodiment, second of optional embodiment is to first pass through to reduce preset value first
The minimum optimal compensation value of bandwidth is obtained, and again by first obtaining the highest optimal compensation value of bandwidth by increasing preset value.
Wherein, detail when second of optional embodiment performs sees the optional embodiment of the first aforementioned,
This is not repeated.
3rd embodiment
Referring to Fig. 5, third embodiment of the invention provides a kind of signal compensation apparatus 100, the signal compensation apparatus 100
Applied to the processor in the network equipment, which includes：
First modulation module 110 modulates the default eye high level of signal acquisition to be modulated for being based on predesigned compensation value.
Module 120 is obtained, for obtaining target compensation value according to default adjustment rule according to the predesigned compensation value.
Second modulation module 130 obtains target eye height for being based on the target compensation value modulation signal to be modulated
Value.
Judgment module 140, for judging whether the target eye high level is more than the default eye high level, in the target eye
When high level is more than the default eye high level, the predesigned compensation value is updated for the target compensation value, so that first modulation
Module is continued to execute described obtained based on predesigned compensation value modulation signal to be modulated and presets eye high level.
Referring to Fig. 6, in a kind of signal compensation apparatus 100 provided in third embodiment of the invention, the acquisition module
Specifically for the predesigned compensation value is increased a preset value, the target compensation value is obtained.
Further, the signal compensation apparatus 100 further includes：
Third modulation module 150, when being not more than the default eye high level for the target eye high level, by the default benefit
It repays value and reduces the preset value, obtain the target compensation value；And so that second modulation module is continued to execute based on described
The target compensation value modulation signal to be modulated obtains target eye high level.
Referring to Fig. 7, in a kind of signal compensation apparatus 100 provided in third embodiment of the invention, the acquisition module
Reduce a preset value also particularly useful for by the predesigned compensation value, obtain the target compensation value.
Further, the signal compensation apparatus 100 further includes：
4th modulation module 160, for when the target eye high level is not more than the default eye high level, described will preset
Offset increases the preset value, obtains the target compensation value；And so that second modulation module is continued to execute based on institute
It states the target compensation value modulation signal to be modulated and obtains target eye high level.
Referring to Fig. 8, in a kind of signal compensation apparatus 100 provided in third embodiment of the invention, the signal compensation
Device 100 further includes：
Terminate module 170 is performed, for when the target eye high level is not more than the default eye high level, determining described pre-
If offset is target compensation value；Terminate this flow.
It should be noted that due to it is apparent to those skilled in the art that, convenience and letter for description
Clean, the specific work process of the system of foregoing description, device and unit can refer to corresponding in preceding method embodiment
Journey, details are not described herein.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program production
Product.Therefore, in terms of the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and hardware
Embodiment form.Moreover, the embodiment of the present invention can be used wherein includes computer available programs generation in one or more
The meter implemented in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of code
The form of calculation machine program product.
In conclusion an embodiment of the present invention provides a kind of method for compensating signal and devices.Wherein, method includes：A, base
Signal to be modulated, which is modulated, in predesigned compensation value obtains default eye high level；B, it is obtained according to predesigned compensation value according to default adjustment rule
Target compensation value；C, signal to be modulated is modulated based on target compensation value and obtains target eye high level；D, whether judge target eye high level
More than default eye high level, when target eye high level is more than default eye high level, update predesigned compensation value is target compensation value, continues to hold
Row step A.
The default eye high level of signal acquisition to be modulated is modulated by being primarily based on predesigned compensation value and according to predesigned compensation value
Target compensation value is obtained according to default adjustment rule；So by the way that target compensation value adjusts current signal to be modulated
System, so as to obtain corresponding target eye high level.Again by judging whether target eye high level is more than default eye high level.So as in target
When eye high level is more than default eye high level, and it is target compensation value to update predesigned compensation value, is sentenced with returning to the comparison performed next time
It is disconnected.Target eye high level and default eye high level are compared by it by constantly recycling, therefore can be determined in multiple comparison
The target eye high level of maximum value, and then the offset corresponding to the target eye high level of the maximum value treats modulated signal Compensation Modulation
When interference it is minimum.Therefore, the optimal compensation value is only just capable of determining that in a manner that simple cycle compares so that this method
Operand when being executed is small, the threshold requirement of the hardware to performing this method is greatly reduced, so that this method can
Obtain application universal extensively.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification for all within the spirits and principles of the present invention, being made,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should be noted that：Similar label and letter are under
Similar terms are represented in the attached drawing in face, therefore, once being defined in a certain Xiang Yi attached drawing, are not then needed in subsequent attached drawing
It is further defined and explained.
More than, only specific embodiment of the invention, but protection scope of the present invention is not limited thereto is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (12)
1. a kind of method for compensating signal, which is characterized in that the method includes：
A, signal to be modulated is modulated based on predesigned compensation value and obtains default eye high level；
B, target compensation value is obtained according to default adjustment rule according to the predesigned compensation value；
C, target eye high level is obtained based on the target compensation value modulation signal to be modulated；
D, judge whether the target eye high level is more than the default eye high level, be more than the default eye in the target eye high level
During high level, the predesigned compensation value is updated for the target compensation value, continues to execute step A.
2. method for compensating signal according to claim 1, which is characterized in that in stepb, described according to the default benefit
It repays value and obtains target compensation value according to default adjustment rule, including：
The predesigned compensation value is increased by a preset value, obtains the target compensation value.
3. method for compensating signal according to claim 2, which is characterized in that in step D, described to judge the target eye
Whether high level is more than after the default eye high level, and the method further includes：
When the target eye high level is not more than the default eye high level, the predesigned compensation value is reduced into the preset value, is obtained
Obtain the target compensation value；Perform step C.
4. method for compensating signal according to claim 1, which is characterized in that in stepb, described according to the default benefit
It repays value and obtains target compensation value according to default adjustment rule, including：
The predesigned compensation value is reduced into a preset value, obtains the target compensation value.
5. method for compensating signal according to claim 4, which is characterized in that in step D, described to judge the target eye
Whether high level is more than after the default eye high level, and the method further includes：
When the target eye high level is not more than the default eye high level, the predesigned compensation value is increased into the preset value, is obtained
Obtain the target compensation value；Perform step C.
6. the method for compensating signal according to claim 3 or 5, which is characterized in that after the execution step C, in step
It is described to judge whether the target eye high level is more than the default eye high level in rapid D, in the target eye high level no more than described
During default eye high level, it is target compensation value to determine the predesigned compensation value；Terminate this flow.`
7. a kind of signal compensation apparatus, which is characterized in that described device includes：
First modulation module modulates the default eye high level of signal acquisition to be modulated for being based on predesigned compensation value；
Module is obtained, for obtaining target compensation value according to default adjustment rule according to the predesigned compensation value；
Second modulation module obtains target eye high level for being based on the target compensation value modulation signal to be modulated；
Judgment module is big in the target eye high level for judging whether the target eye high level is more than the default eye high level
When the default eye high level, update the predesigned compensation value for the target compensation value so that first modulation module after
Described obtained based on predesigned compensation value modulation signal to be modulated of continuous execution presets eye high level.
8. signal compensation apparatus according to claim 7, which is characterized in that the acquisition module is specifically used for will be described pre-
If offset increases by a preset value, the target compensation value is obtained.
9. signal compensation apparatus according to claim 8, which is characterized in that the signal compensation apparatus further includes：
When being not more than the default eye high level for the target eye high level, the predesigned compensation value is subtracted for third modulation module
Few preset value, obtains the target compensation value；And so that second modulation module is continued to execute based on target benefit
It repays the value modulation signal to be modulated and obtains target eye high level.
10. signal compensation apparatus according to claim 7, which is characterized in that the acquisition module is also particularly useful for by institute
It states predesigned compensation value and reduces a preset value, obtain the target compensation value.
11. signal compensation apparatus according to claim 8, which is characterized in that the signal compensation apparatus further includes：
4th modulation module, for the target eye high level be not more than the default eye high level when, by the predesigned compensation value
Increase the preset value, obtain the target compensation value；And so that second modulation module is continued to execute based on the target
The offset modulation signal to be modulated obtains target eye high level.
12. the signal compensation apparatus according to claim 9 or 11, which is characterized in that the signal compensation apparatus further includes：
Terminate module is performed, for when the target eye high level is not more than the default eye high level, determining the predesigned compensation
It is worth for target compensation value；Terminate this flow.
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