CN103312655B - A kind of multicarrier phase optimization method and device - Google Patents
A kind of multicarrier phase optimization method and device Download PDFInfo
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- CN103312655B CN103312655B CN201310205398.8A CN201310205398A CN103312655B CN 103312655 B CN103312655 B CN 103312655B CN 201310205398 A CN201310205398 A CN 201310205398A CN 103312655 B CN103312655 B CN 103312655B
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Abstract
The present invention relates to mobile communication technology field, particularly relate to a kind of multicarrier phase optimization method and device, can not find optimum angle value when determining and optimizing phase value in order to solve existing multicarrier phase optimization method or find the inefficient problem of the process operation of optimum angle value.The method of a kind of multicarrier phase optimization that the embodiment of the present invention provides, including: according to the specific phase place value of each carrier wave relative to the phase pushing figure of this target carrier and when making the peak value of multi-carrier signal reach target setting value under conditions of not considering phase offset of other carrier wave in addition to target carrier in each carrier wave of the multi-carrier signal received, determine the optimization phase value of each carrier wave；Optimization phase value according to each carrier wave determined, generates the multi-carrier signal after phase optimization.The optimum angle value of each carrier wave in multi-carrier signal can be found with greater efficiency based on this programme embodiment.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of multicarrier phase optimization method and dress
Put.
Background technology
Along with the development of wireless mobile telecommunication technology, various high performance mobile terminal devices, as phone,
Pad, handheld digital TV come out, and make people's life & amusement content abundanter, but add the most simultaneously and carry
Rise the urgent needs of communication data rate.At present, common carrier promotes one of Main Means of data rate
Just it is introduced into multi-carrier signal and is applied to cellular communication, but owing to the initial phase value of each carrier wave is not solid
Fixed, the peak value that so may result in multi-carrier signal is indefinite, when multiple carrier wave initial phases are consistent,
Can produce the biggest peak value, especially when carrier signal is simple modulation form, this is application multicarrier
The design of the communication equipment of signal brings challenge.
Existing carry out multicarrier phase optimization method be first default system input be baseband signal sequence
Arrange, and each carrier wave frequency information is known, by a random phase generator, produces one group and load
The random phase value of ripple association, then calculates the multi-carrier signal peak value being worth to according to current each carrier phase
Less than the multi-carrier signal peak value being worth to according to upper one group of random phase, just retain current phase if little
Place value, just retains upper one group of phase value if big, continues next the group random phase value according to producing and calculates many
By the maximum experiment number arranged, carrier signal peak value, determines whether that end loop produces the step of phase value
Suddenly, obtain the multi-carrier signal after phase optimization according to the last one group of phase value retained, but, this
The method of kind has the disadvantage that when determining optimization phase value
Use said method, it is possible to occur that this experiment is also bigger than the carrier peak value that last time experiment obtains,
It is invalid for so causing this result tested, and wastes system resource, and, if the severe excess syndrome arranged
Test number of times less, it is possible to cause the optimum angle value that can not find each carrier wave in multi-carrier signal, and set
The maximum experiment number put is more, and system can be made to find the optimum angle of each carrier wave in multi-carrier signal
The operation time of value is longer, and operational efficiency is relatively low.
Summary of the invention
The embodiment of the present invention provides a kind of multicarrier phase optimization method and device, in order to solve existing overloading
Wave phase optimization method can not find optimum angle value when determining optimization phase value or finds optimum angle value
The inefficient problem of process operation.
The method of a kind of multicarrier phase optimization that the embodiment of the present invention provides, including:
In each carrier wave according to the multi-carrier signal received, other carrier wave in addition to target carrier is relative to this
The phase pushing figure of target carrier and make the peak value of multi-carrier signal reach under conditions of not considering phase offset
To the specific phase place value of each carrier wave during target setting value, determine the optimization phase value of each carrier wave；
Optimization phase value according to each carrier wave determined, generates the multi-carrier signal after phase optimization.
It is preferred that determine described phase pushing figure according to following steps:
The multi-carrier signal of reception is converted to the first zero intermediate frequency digital multi-carrier signal；
According to described first zero intermediate frequency digital multi-carrier signal and each carrier wave of the described multi-carrier signal of carrying
Frequency relative to the frequency offseting value of the first zero intermediate frequency centre carrier frequency, determine the base band that each carrier wave is corresponding
Signal；
For a carrier wave, corresponding with described target carrier according to the baseband signal that this carrier wave determined is corresponding
Baseband signal, determines the phase pushing figure of the most described target carrier of this carrier wave.
It is preferred that determine the baseband signal that each carrier wave is corresponding, including:
For a carrier wave, the frequency offseting value according to this carrier frequency Relative Zero intermediate frequency carrier mid frequency is true
The first local oscillation signal that this carrier wave fixed is corresponding；Wherein, the frequency values of this first local oscillation signal is to should first
The frequency offseting value of the carrier frequency Relative Zero intermediate frequency carrier mid frequency of local oscillation signal, this first local oscillation signal
Phase value be zero；
The first corresponding for each carrier wave local oscillation signal is carried out with described first zero intermediate frequency digital multi-carrier signal
Mixing, determines the baseband signal that each carrier wave is corresponding.
It is preferred that determine the phase relative to this target carrier of other carrier wave in addition to target carrier according to below equation
Position deviant:
Wherein, X (1)kRepresent first data point of the baseband signal that kth carrier wave is corresponding, X (1)nFor mesh
First data point of the baseband signal that mark carrier wave is corresponding,Represent that kth carrier wave is relative to target carrier
Phase pushing figure.
It is preferred that according to the optimization phase value of each carrier wave determined, generate the overloading after phase optimization
Ripple signal, including:
For a carrier wave, the second corresponding with this carrier wave for baseband signal corresponding for this carrier wave local oscillation signal is entered
Row mixing, obtains the mixed frequency signal that this carrier wave is corresponding；
Mixed frequency signal corresponding for each carrier wave obtained is synthesized the second zero intermediate frequency digital multi-carrier signal；Its
In, for second local oscillation signal, the frequency of this second local oscillation signal is to should the second local oscillation signal
The frequency offseting value of carrier frequency Relative Zero intermediate frequency carrier mid frequency, the phase value of this second local oscillation signal is
To should the optimization phase value of carrier wave of the second local oscillation signal.
It is preferred that determine described specific phase place value according to following steps:
The size of the carrier frequency of each carrier wave according to the multi-carrier signal received, arranges each carrier wave
Sequence, determines the frequency interval between adjacent carrier wave；
According to the described frequency interval determined and the variable number of the multi-carrier signal of reception, determine described spy
Phase bit value.
A kind of signal processing apparatus that the embodiment of the present invention provides, including:
Determine module, other in addition to target carrier in each carrier wave according to the multi-carrier signal received
Carrier wave relative to the phase pushing figure of this target carrier and makes multicarrier under conditions of not considering phase offset
The peak value of signal reaches the specific phase place value of each carrier wave during target setting value, determines the optimization phase of each carrier wave
Place value；
Generation module, for the optimization phase value according to each carrier wave determined, generates after phase optimization
Multi-carrier signal.
The embodiment of the present invention is according to other in addition to target carrier in each carrier wave of the multi-carrier signal received
Carrier wave relative to the phase pushing figure of this target carrier and makes multicarrier under conditions of not considering phase offset
The peak value of signal reaches the specific phase place value of each carrier wave during target setting value, determines the optimization phase of each carrier wave
Place value；Optimization phase value according to each carrier wave determined, generates the multi-carrier signal after phase optimization；
Thus can the most once determine the place of optimum angle value for each carrier wave based on this programme embodiment
Reason, if it is less therefore to avoid the maximum experiment number arranged in prior art, it is possible to cause can not find
The optimum angle value of each carrier wave in multicarrier, and the maximum experiment number arranged is more, can make be
System finds the operation time of the optimum angle value of each carrier wave in multicarrier longer, and operational efficiency is relatively low
Problem, has reached to find the purpose of each carrier wave optimum angle value in multi-carrier signal with greater efficiency.
Accompanying drawing explanation
A kind of multicarrier phase optimization method flow chart that Fig. 1 provides for the embodiment of the present invention；
Fig. 2 is the schematic diagram that the embodiment of the present invention determines the baseband signal that each carrier wave is corresponding；
Fig. 3 is that the embodiment of the present invention generates the multi-carrier signal schematic diagram after phase optimization；
The method flow generating the multi-carrier signal after phase optimization that Fig. 4 provides for the embodiment of the present invention
Figure；
A kind of multicarrier phase optimization apparatus structure chart that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
The embodiment of the present invention is according to other in addition to target carrier in each carrier wave of the multi-carrier signal received
Carrier wave relative to the phase pushing figure of this target carrier and makes multicarrier under conditions of not considering phase offset
The peak value of signal reaches the specific phase place value of each carrier wave during target setting value, determines the optimization phase of each carrier wave
Place value；Optimization phase value according to each carrier wave determined, generates the multi-carrier signal after phase optimization；
Thus can the most once determine the place of optimum angle value for each carrier wave based on this programme embodiment
Reason, if it is less therefore to avoid the maximum experiment number arranged in prior art, it is possible to cause can not find
The optimum angle value of each carrier wave in multicarrier, and the maximum experiment number arranged is more, can make be
System finds the operation time of the optimum angle value of each carrier wave in multicarrier longer, and operational efficiency is relatively low
Problem, has reached to find the purpose of each carrier wave optimum angle value in multi-carrier signal with greater efficiency.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
As it is shown in figure 1, a kind of multi-carrier signal phase optimization method flow chart provided for the embodiment of the present invention,
Comprise the following steps:
S101: relative according to other carrier wave in addition to target carrier in each carrier wave of the multi-carrier signal received
In the phase pushing figure of this target carrier with make the peak of multi-carrier signal under conditions of not considering phase offset
Value reaches the specific phase place value of each carrier wave during target setting value, determines the optimization phase value of each carrier wave；
S102: according to the optimization phase value of each carrier wave determined, generate the multicarrier after phase optimization
Signal.
The multicarrier phase optimization method that the embodiment of the present invention provides, can optimize multicarrier phase place, make overloading
Ripple signal peak reaches the desired value set, and the multi-carrier signal in the embodiment of the present invention can be that multicarrier is penetrated
Frequently signal.In specific implementation process, the embodiment of the present invention is without passing through algorithm iteration as background technology
Mode realize, but first obtain in multi-carrier signal each carrier wave relative target carrier wave in addition to target carrier
Phase pushing figure and make under conditions of not considering phase offset the peak value of multi-carrier signal reach set mesh
The specific phase place value of each carrier wave during scale value, by calculating the difference of specific phase place value and phase pushing figure, i.e.
Obtaining the phase value optimized, the phase value of optimization can make the peak value of multi-carrier signal reach the target set
Value；Here specific phase place value obtains under conditions of not considering phase offset impact, can be according to many
Frequency interval between variable number and carrier wave that carrier signal comprises obtains.
It is preferred that in step S101, determine that the step of phase pushing figure can be:
The multi-carrier signal of reception is converted to the first zero intermediate frequency digital multi-carrier signal；
The first zero intermediate frequency digital multi-carrier signal according to conversion and each carrier wave of the multi-carrier signal of reception
The frequency offseting value of frequency Relative Zero intermediate frequency carrier mid frequency, determine the base band letter that each carrier wave is corresponding
Number；
For a carrier wave, according to the base band that the baseband signal that this carrier wave determined is corresponding is corresponding with target carrier
Signal, determines the phase pushing figure of this carrier wave relative target carrier wave.
In specific implementation process, for the multicarrier radiofrequency signal received, this multicarrier radio frequency can be believed
Number through down coversion and analog digital conversion, become the first zero intermediate frequency digital multi-carrier signal, specifically, can be right
The multicarrier radiofrequency signal received first carries out down-converted, is converted to intermediate-freuqncy signal, then to being converted in
Frequently signal is filtered processing, and the analogue signal after Filtering Processing is become digital signal, finally, to this number
Word signal carries out down-converted, obtains the first zero intermediate frequency digital multi-carrier signal；
After obtaining the first zero intermediate frequency digital multi-carrier signal, can be many according to the first zero intermediate frequency numeral obtained
The frequency of each carrier frequency Relative Zero intermediate frequency carrier mid frequency in the multi-carrier signal of carrier signal and reception
Rate deviant, determines the baseband signal that each carrier wave is corresponding；Each carrier frequency Relative Zero intermediate frequency carrier center
The frequency offseting value of frequency can be after the mid frequency determining each carrier wave, by calculating in each carrier wave
Frequency interval between frequency of heart and zero intermediate frequency centre carrier frequency obtains；
In specific implementation process, mid frequency and the multicarrier of each carrier wave can be determined according to following steps
The variable number that signal packet contains:
Extract a part of multicarrier radiofrequency signal, determine initial and terminate frequency values, reference carrier performance number；
In terminating frequency values, pre-defined rule extraction frequency values is pressed, according to the frequency values extracted to many from initial frequency value
The multicarrier radiofrequency signal of carrier radio frequency signal input part carries out Frequency mixing processing and obtains intermediate-freuqncy signal, then to intermediate frequency
Signal processes the performance number obtaining current intermediate-freuqncy signal accordingly；According to current intermediate-freuqncy signal performance number with
Before once extract the rising that intermediate-freuqncy signal performance number corresponding to frequency values determines the carrier wave of multicarrier radiofrequency signal
Along frequency values or trailing edge frequency values；Rising edge frequency values and trailing edge frequency values according to determining determine carrier wave
Number and centre carrier frequency；
After the mid frequency determining each carrier wave, can be according to each centre carrier frequency and zero intermediate frequency carrier wave
The difference of mid frequency determines the frequency offseting value of each carrier wave, in conjunction with the first zero intermediate frequency digital multi-carrier letter
Number, determine the baseband signal that each carrier wave is corresponding, and then determine one group of phase pushing figure.Use above-mentioned side
Variable number and the combination of centre carrier frequency that method determines can be used to determine one group of specific phase place value.Ratio
As, in the one group of phase pushing figure determined, can using first carrier wave as target carrier, other carrier wave
Phase pushing figure is the phase pushing figure of relative first carrier wave, and first carrier wave is inclined relative to the phase place of self
Shifting value is 0, in the one group of specific phase place value determined, then can the specific phase place value of first carrier wave be set
It is 0, determines the specific phase place value of other carrier wave further according to variable number and centre carrier frequency information, finally
In the optimization phase value obtained, the optimization phase value of first carrier wave is 0, for appointing in other carrier wave
Anticipate one, the specific phase place value difference with phase pushing figure that optimization phase value is this carrier wave of this carrier wave.
It is preferred that in step S101, according to the first zero intermediate frequency digital multi-carrier signal of conversion and reception
In multi-carrier signal, the frequency offseting value of each carrier frequency Relative Zero intermediate frequency carrier mid frequency determines each
The baseband signal that carrier wave is corresponding, including:
For a carrier wave, the frequency offseting value according to this carrier frequency Relative Zero intermediate frequency carrier mid frequency is true
The first local oscillation signal that this carrier wave fixed is corresponding；Wherein, the frequency values of this first local oscillation signal is to should first
The frequency offseting value of the carrier frequency Relative Zero intermediate frequency carrier mid frequency of local oscillation signal, this first local oscillation signal
Phase value be zero；
The first corresponding for each carrier wave local oscillation signal and the first zero intermediate frequency digital multi-carrier signal are mixed,
Determine the baseband signal that each carrier wave is corresponding.
In specific implementation process, for a carrier wave, can by the first corresponding for this carrier wave local oscillation signal with
Above-mentioned first zero intermediate frequency digital multi-carrier signal carry out being mixed obtain to should the baseband signal of carrier wave, such as Fig. 2
Shown in, the schematic diagram of baseband signal that each carrier wave is corresponding is determined for the embodiment of the present invention；Wherein, Mei Gezai
The frequency offseting value of wave frequency Relative Zero intermediate frequency carrier mid frequency is fk, subscript k therein represents this overloading
Kth carrier wave in ripple signal, the phase value of the first local oscillation signal that each carrier wave is corresponding is set to zero,
To the baseband signal of each carrier wave of correspondence be X (n)k, n therein represents the nth of this baseband signal
Strong point.
It is preferred that in above-mentioned steps, determine that other carrier wave in addition to target carrier is relative to mesh according to below equation
The phase pushing figure of mark carrier wave:
Wherein, X (1)kRepresent first data point of the baseband signal that kth carrier wave is corresponding, X (1)nFor mesh
First data point of the baseband signal that mark carrier wave is corresponding,Represent that kth carrier wave is relative to target carrier
Phase pushing figure；Abs(in above formula) it is ABS function, represent and the data in bracket () are taken absolutely
To value.
In specific implementation process, the carrier wave in any one multi-carrier signal received can be selected as mesh
Mark carrier wave, determines other carrier wave phase pushing figure relative to this target carrier, and by the spy of this target carrier
Phase bit value is set to 0, the difference that optimization phase value is specific phase place value and phase pushing figure of each carrier wave.
In specific implementation process, only need to use first data point calculation phase of the baseband signal that each carrier wave is corresponding
Position deviant.
It is preferred that in step S102, according to the optimization phase value of each carrier wave determined, generate through phase
Multi-carrier signal after bit optimization, including:
For a carrier wave, the second corresponding with this carrier wave for baseband signal corresponding for this carrier wave local oscillation signal is entered
Row mixing, obtains the mixed frequency signal that this carrier wave is corresponding；
Mixed frequency signal corresponding for each carrier wave obtained is synthesized the second zero intermediate frequency digital multi-carrier signal；Its
In, for second local oscillation signal, the frequency of this second local oscillation signal is to should the second local oscillation signal
The frequency offseting value of carrier frequency Relative Zero intermediate frequency carrier mid frequency, the phase value of this second local oscillation signal is
To should the optimization phase value of carrier wave of the second local oscillation signal.
As it is shown on figure 3, generate the multi-carrier signal schematic diagram after phase optimization for the embodiment of the present invention；
Here, using first carrier wave as target carrier, the specific phase place value of this carrier wave is set to 0, if determine
The specific phase place value of other carrier wave is φk, k represents kth carrier wave, other carrier wave in addition to first carrier wave
Relative to the phase pushing figure of first carrier wave it isThe optimization phase value of the carrier wave then determined is
By baseband signal X (n) corresponding for each carrier wave obtained abovekRespectively with there is optimization phase place
The second local oscillation signal be mixed, synthesize have optimize phase place second zero intermediate frequency digital multi-carrier letter
Number；And the second zero intermediate frequency digital multi-carrier signal of synthesis is sent into rear class signal processing, or directly will synthesis
Zero intermediate frequency digital multi-carrier signal carry out digital-to-analogue conversion and upconversion process after, become having and optimize phase place
Multicarrier radiofrequency signal.
It is preferred that in step S101, determine that the step of specific phase place value can be:
The size of the carrier frequency of each carrier wave according to the multi-carrier signal received, arranges each carrier wave
Sequence, determines the frequency interval between adjacent carrier wave；
According to the carrier frequency separation determined and the variable number of the multi-carrier signal of reception, determine specific phase
Place value.
In specific implementation process, can according to the intercarrier between the variable number determined and adjacent carrier every
Determining specific phase place value, this specific phase place value is in the locking phase not considering between carrier wave, i.e. phase offset
Impact under conditions of, determine meet multi-carrier signal peak value reach set certain desired value time each load
The phase value of ripple, in the specific implementation, can be set to 0 by the specific phase place value of above-mentioned target carrier.
As shown in Figure 4, multi-carrier signal after phase optimization is generated for what the embodiment of the present invention provided
Method flow diagram, including:
S401: receive the input of multicarrier radiofrequency signal, and the multicarrier radiofrequency signal of reception is converted to the
One zero intermediate frequency digital multi-carrier signal；Variable number and the center of each carrier wave is determined by carrier mode identification
Frequency；
In specific implementation process, the multicarrier radiofrequency signal received first can be carried out down-converted, turn
It is changed to intermediate-freuqncy signal, then is filtered the intermediate-freuqncy signal being converted into processing, the simulation after Filtering Processing is believed
Number become digital signal, finally, this digital signal is carried out down-converted, obtain the first zero intermediate frequency numeral
Multi-carrier signal.
In specific implementation process, can determine according to following steps in variable number and the carrier wave of radiofrequency signal
Frequency of heart:
For the multicarrier radiofrequency signal received, first extract a part of multicarrier radiofrequency signal, determine initial
With termination frequency values, reference carrier performance number；Take out by pre-defined rule in terminating frequency values from initial frequency value
Take frequency values, according to the frequency values of extraction, the multicarrier radiofrequency signal of multicarrier radio-frequency (RF) signal input end is carried out
Frequency mixing processing obtains intermediate-freuqncy signal, then intermediate-freuqncy signal processes merit accordingly that obtain current intermediate-freuqncy signal
Rate value；True according to the intermediate-freuqncy signal performance number that current intermediate-freuqncy signal performance number is corresponding with front once extraction frequency values
Determine rising edge frequency values or the trailing edge frequency values of the carrier wave of multicarrier radiofrequency signal；According to the rising edge determined
Frequency values and trailing edge frequency values determine variable number and centre carrier frequency；
S402: determine carrier frequency separation, and each carrier wave according to the mid frequency of each carrier wave determined
The frequency offseting value of frequency Relative Zero intermediate frequency carrier mid frequency；
S403: for a carrier wave, by the first zero intermediate frequency digital multi-carrier signal of being converted to should
First local oscillation signal of carrier wave is mixed, and obtains should the baseband signal of carrier wave；Wherein, this first
Shake the frequency offseting value that frequency values is this carrier frequency Relative Zero intermediate frequency carrier mid frequency of signal, to should
The phase value of the first local oscillation signal of carrier wave is 0；
S404: determine in addition to target carrier according to the baseband signal that each carrier wave is corresponding, each carrier wave relatively should
The phase pushing figure of target carrier；
S405: the carrier frequency separation that the variable number determined according to step S401 and step S402 determine,
Determine the specific phase place value of each carrier wave；Wherein, the specific phase place value of target carrier is 0；
In specific implementation process, can be according to the size of each centre carrier frequency, the multicarrier that will receive
Each carrier wave in signal is ranked up, and determines the frequency interval between adjacent carrier wave；According to the phase determined
The adjacent frequency interval between carrier wave and variable number corresponding to the multi-carrier signal of reception can be each
Carrier wave arranges a specific phase place value so that by the multi-carrier signal of the carriers carry with specific phase place value
Peak value meets some target peak, it should be noted that this specific phase place value is not consider actual signal
Establish under conditions of the impact of the locking phase between middle carrier wave, i.e. phase offset, so this particular phases
Value is not final optimization phase place.
In being embodied as, first carrier wave can be set to target carrier, determine that other carrier wave is relative to first
The phase pushing figure of individual carrier wave, it is possible to the specific phase place value of first carrier wave is set to 0.
S406: the specific phase place value according to each carrier wave determined is relative with each carrier wave in addition to target carrier
The phase pushing figure of target carrier determines the optimization phase value of each carrier wave；
For a carrier wave, the phase value that optimizes of this carrier wave is specific phase place value and the relative target of this carrier wave
The difference of the phase pushing figure of carrier wave, the optimization phase value of target carrier is 0；
S407: a corresponding carrier wave, by baseband signal corresponding for this carrier wave with to should the second local oscillator of carrier wave
Signal is mixed, and obtains should the mixed frequency signal of carrier wave；The frequency values of this second local oscillation signal is this load
The frequency offseting value of wave frequency Relative Zero intermediate frequency carrier mid frequency, this second local oscillation signal phase value is step
The optimization phase value of this carrier wave determined in S406；
S408: the mixed frequency signal of corresponding each carrier wave is synthesized the second zero intermediate frequency digital multi-carrier signal；
Here the second zero intermediate frequency digital multi-carrier signal obtained is has the zero intermediate frequency numeral optimizing phase place
Multi-carrier signal, by this signal after digital-to-analogue conversion and upconversion process, and can obtain having optimization phase place
Radio frequency multi-carrier signal.
Based on same inventive concept, the embodiment of the present invention additionally provide a kind of corresponding with signal processing method
Signal processing apparatus, owing to this device solves principle and the embodiment of the present invention signal processing method phase of problem
Seemingly, therefore the enforcement of this device may refer to the enforcement of method, repeats no more in place of repetition.
As it is shown in figure 5, a kind of multicarrier phase optimization apparatus structure chart provided for the embodiment of the present invention, bag
Include:
Determine module 51, its in addition to target carrier in each carrier wave according to the multi-carrier signal received
Its carrier wave relative to the phase pushing figure of this target carrier and makes overloading under conditions of not considering phase offset
The peak value of ripple signal reaches the specific phase place value of each carrier wave during target setting value, determines the optimization of each carrier wave
Phase value；
Generation module 52, for the optimization phase value according to each carrier wave determined, generates through phase optimization
After multi-carrier signal.
It is preferred that determine module 51 specifically for:
The multi-carrier signal of reception is converted to the first zero intermediate frequency digital multi-carrier signal；According to the first zero intermediate frequency
The frequency of digital multi-carrier signal and each carrier wave of the multi-carrier signal of reception is relative to the first zero intermediate frequency carrier wave
The frequency offseting value of mid frequency, determines the baseband signal that each carrier wave is corresponding；For a carrier wave, according to
The baseband signal that baseband signal that this carrier wave of determining is corresponding is corresponding with target carrier, determines that this carrier wave is relative to mesh
The phase pushing figure of mark carrier wave.
It is preferred that determine module 51 specifically for:
For a carrier wave, the frequency offseting value according to this carrier frequency Relative Zero intermediate frequency carrier mid frequency is true
The first local oscillation signal that this carrier wave fixed is corresponding；Wherein, the frequency values of this first local oscillation signal is to should first
The frequency offseting value of the carrier frequency Relative Zero intermediate frequency carrier mid frequency of local oscillation signal, this first local oscillation signal
Phase value be zero；By the first corresponding for each carrier wave local oscillation signal and the first zero intermediate frequency digital multi-carrier signal
It is mixed, determines the baseband signal that each carrier wave is corresponding.
It is preferred that determine module 51 specifically for: according to below equation determine in addition to target carrier each
The phase pushing figure of carrier wave relative target carrier wave:
Wherein, X (1)kRepresent first data point of the baseband signal that kth carrier wave is corresponding, X (1)nFor mesh
First data point of the baseband signal that mark carrier wave is corresponding,Represent that kth carrier wave is relative to target carrier
Phase pushing figure.
It is preferred that generation module 52 specifically for:
For a carrier wave, the second corresponding with this carrier wave for baseband signal corresponding for this carrier wave local oscillation signal is entered
Row mixing, obtains the mixed frequency signal that this carrier wave is corresponding；By mixed frequency signal synthesis corresponding for each carrier wave obtained
It it is the second zero intermediate frequency digital multi-carrier signal；Wherein, for second local oscillation signal, this second local oscillator is believed
Number frequency be to should the frequency of carrier frequency Relative Zero intermediate frequency carrier mid frequency of the second local oscillation signal
Deviant, the phase value of this second local oscillation signal is to should the optimization phase place of carrier wave of the second local oscillation signal
Value.
It is preferred that determine module 51 specifically for:
The size of the carrier frequency of each carrier wave according to the multi-carrier signal received, arranges each carrier wave
Sequence, determines the frequency interval between adjacent carrier wave；Carrier frequency separation and reception according to determining are many
The variable number of carrier signal, determines specific phase place value.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot
The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more
Computer-usable storage medium containing computer usable program code (include but not limited to disk memory,
CD-ROM, optical memory etc.) form of the upper computer program implemented.
The present invention is with reference to method, device (system) and computer program product according to embodiments of the present invention
The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/
Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedding
The processor of formula datatron or other programmable data processing device is to produce a machine so that by calculating
The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one
The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set
In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory
Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart
The function specified in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes
Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices
Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one
The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know base
This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted
Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. a multicarrier phase optimization method, it is characterised in that the method includes:
In each carrier wave according to the multi-carrier signal received, other carrier wave in addition to target carrier is relative to this
The phase pushing figure of target carrier and make the multi-carrier signal of reception under conditions of not considering phase offset
Peak value reaches the phase value of each carrier wave during target setting value, determines the optimization phase value of each carrier wave；
Optimization phase value according to each carrier wave determined, generates the multi-carrier signal through phase optimization；
Wherein, described phase pushing figure is determined according to following steps:
The multi-carrier signal of reception is converted to the first zero intermediate frequency digital multi-carrier signal；According to the described 1st
The frequency of intermediate frequency digital multi-carrier signal and each carrier wave of the multi-carrier signal of reception is relative to the first zero intermediate frequency
The frequency offseting value of centre carrier frequency, determines the baseband signal that each carrier wave is corresponding；For a carrier wave,
According to the baseband signal that the baseband signal that this carrier wave determined is corresponding is corresponding with described target carrier, determine this load
The phase pushing figure of the most described target carrier of ripple；
Optimization phase value according to each carrier wave determined, generates the multi-carrier signal through phase optimization, bag
Include: for a carrier wave, the second corresponding with this carrier wave for baseband signal corresponding for this carrier wave local oscillation signal is entered
Row mixing, obtains the mixed frequency signal that this carrier wave is corresponding；By mixed frequency signal synthesis corresponding for each carrier wave obtained
It it is the second zero intermediate frequency digital multi-carrier signal；Wherein, for second local oscillation signal, this second local oscillator is believed
Number frequency be to should the frequency of carrier frequency Relative Zero intermediate frequency carrier mid frequency of the second local oscillation signal
Deviant, the phase value of this second local oscillation signal is to should the optimization phase place of carrier wave of the second local oscillation signal
Value.
2. the method for claim 1, it is characterised in that determine the base band letter that each carrier wave is corresponding
Number, including:
For a carrier wave, the frequency offseting value according to this carrier frequency Relative Zero intermediate frequency carrier mid frequency is true
The first local oscillation signal that this carrier wave fixed is corresponding；Wherein, the frequency values of this first local oscillation signal is to should first
The frequency offseting value of the carrier frequency Relative Zero intermediate frequency carrier mid frequency of local oscillation signal, this first local oscillation signal
Phase value be zero；
The first corresponding for each carrier wave local oscillation signal is carried out with described first zero intermediate frequency digital multi-carrier signal
Mixing, determines the baseband signal that each carrier wave is corresponding.
3. the method for claim 1, it is characterised in that determine except target carries according to below equation
Other carrier wave outside ripple is relative to the phase pushing figure of this target carrier:
Wherein, X (1)kRepresent first data point of the baseband signal that kth carrier wave is corresponding, X (1)nFor mesh
First data point of the baseband signal that mark carrier wave is corresponding,Represent that kth carrier wave is relative to target carrier
Phase pushing figure.
4. the method for claim 1, it is characterised in that according to following steps determine described in make to connect
The peak value of multi-carrier signal received reaches the phase value of each carrier wave during target setting value:
The size of the carrier frequency of each carrier wave according to the multi-carrier signal received, arranges each carrier wave
Sequence, determines the frequency interval between adjacent carrier wave；
According to the described frequency interval determined and the variable number of the multi-carrier signal of reception, determine described in make
The peak value of the multi-carrier signal received reaches the phase value of each carrier wave during target setting value.
5. a multicarrier phase optimization apparatus, it is characterised in that this device includes:
Determine module, other in addition to target carrier in each carrier wave according to the multi-carrier signal received
Carrier wave relative to the phase pushing figure of this target carrier and makes reception under conditions of not considering phase offset
The peak value of multi-carrier signal reaches the phase value of each carrier wave during target setting value, determines the optimization of each carrier wave
Phase value；Specifically, the multi-carrier signal of reception is converted to the first zero intermediate frequency digital multi-carrier signal；Root
According to described first zero intermediate frequency digital multi-carrier signal and the frequency phase of each carrier wave of the multi-carrier signal of reception
Frequency offseting value to the first zero intermediate frequency centre carrier frequency, determines the baseband signal that each carrier wave is corresponding；Pin
To a carrier wave, according to the base band letter that the baseband signal that this carrier wave determined is corresponding is corresponding with described target carrier
Number, determine the phase pushing figure of the most described target carrier of this carrier wave；
Generation module, for the optimization phase value according to each carrier wave determined, generates after phase optimization
Multi-carrier signal, specifically, for a carrier wave, by baseband signal corresponding for this carrier wave and this carrier wave pair
The second local oscillation signal answered is mixed, and obtains the mixed frequency signal that this carrier wave is corresponding；The each carrier wave that will obtain
Corresponding mixed frequency signal synthesizes the second zero intermediate frequency digital multi-carrier signal；Wherein, for second local oscillator
Signal, the frequency of this second local oscillation signal be to should the second local oscillation signal carrier frequency Relative Zero intermediate frequency carry
The frequency offseting value of ripple mid frequency, the phase value of this second local oscillation signal is to should the second local oscillation signal
The optimization phase value of carrier wave.
6. device as claimed in claim 5, it is characterised in that described determine module specifically for:
For a carrier wave, the frequency offseting value according to this carrier frequency Relative Zero intermediate frequency carrier mid frequency is true
The first local oscillation signal that this carrier wave fixed is corresponding；Wherein, the frequency values of this first local oscillation signal is to should first
The frequency offseting value of the carrier frequency Relative Zero intermediate frequency carrier mid frequency of local oscillation signal, this first local oscillation signal
Phase value be zero；By the first corresponding for each carrier wave local oscillation signal and described first zero intermediate frequency digital multi-carrier
Signal is mixed, and determines the baseband signal that each carrier wave is corresponding.
7. device as claimed in claim 5, it is characterised in that described determine that module is specifically for root
The phase pushing figure relative to this target carrier of other carrier wave in addition to target carrier is determined according to below equation:
Wherein, X (1)kRepresent first data point of the baseband signal that kth carrier wave is corresponding, X (1)nFor mesh
First data point of the baseband signal that mark carrier wave is corresponding,Represent that kth carrier wave is relative to target carrier
Phase pushing figure.
8. device as claimed in claim 5, it is characterised in that described determine module specifically for:
The size of the carrier frequency of each carrier wave according to the multi-carrier signal received, arranges each carrier wave
Sequence, determines the frequency interval between adjacent carrier wave；Described frequency interval and reception according to determining are many
The variable number of carrier signal, determine described in when making the peak value of multi-carrier signal of reception reach target setting value
The phase value of each carrier wave.
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| CN105553315B (en) * | 2016-02-23 | 2018-02-09 | 武汉科力源电气有限公司 | A kind of cascade converter carrier frequency optimization method |
| EP4231599A4 (en) * | 2020-11-30 | 2024-05-15 | Huawei Technologies Co., Ltd. | Carrier signal processing method, communication apparatus, and communication system |
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| CN114422314B (en) * | 2021-12-22 | 2024-05-24 | 江苏科大亨芯半导体技术有限公司 | Multi-carrier frequency discrimination method and system |
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| 一种适合软件无线电的载波相位和频差估计算法;储士平,张邦宁,郭道省,潘克刚;《北京理工大学学报》;20050530;443-446 * |
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