CN110324051A - The adaptability Enhancement Method and device of sendaisle quadrature alignment - Google Patents
The adaptability Enhancement Method and device of sendaisle quadrature alignment Download PDFInfo
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- CN110324051A CN110324051A CN201910549611.4A CN201910549611A CN110324051A CN 110324051 A CN110324051 A CN 110324051A CN 201910549611 A CN201910549611 A CN 201910549611A CN 110324051 A CN110324051 A CN 110324051A
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- sendaisle
- baseband signal
- quadrature alignment
- digital baseband
- frequency
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
Abstract
The invention discloses a kind of adaptability Enhancement Method for sending channel quadrature alignment and devices, are related to the communications field.The adaptability Enhancement Method of the sendaisle quadrature alignment is applied to wireless communication sending module this method comprises: the frequency to sendaisle is segmented and obtains multiple frequency bands；Corresponding target frequency section is determined according to predefined local frequency；It chooses preset number corresponding with target frequency section and amplitude and phase adjusting is carried out to digital baseband signal, so that the amplitude error of digital baseband signal and phase deviation are in the range preset.The adaptability Enhancement Method and device of sendaisle quadrature alignment disclosed by the invention can greatly promote the application range of quadrature alignment algorithm, to improve the orthogonal performance in channel.
Description
Technical field
The present invention relates to the communications fields, more particularly, to the adaptability Enhancement Method and dress of a kind of sendaisle quadrature alignment
It sets.
Background technique
In wireless communication sending module, the orthogonal performance of sendaisle will usually be mentioned by quadrature alignment algorithm
Height, the orthogonal algorithm can correct certain amplitude error and phase deviation, inclined to the amplitude error or phase that are more than the range
Difference, correcting algorithm cannot work or even can deteriorate orthogonal performance, especially when working frequency is very wide, due to process deviation meeting
Cause orthogonal performance to change greatly, to the range that boosting algorithm can be corrected, needs more complicated algorithm and more hardware
Resource.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of adaptability Enhancement Method of sendaisle quadrature alignment and
Device, to improve the above problem.
To achieve the goals above, the present invention adopts the following technical scheme:
In a first aspect, the embodiment of the invention provides a kind of adaptability Enhancement Method of sendaisle quadrature alignment, application
In wireless communication sending module, which comprises
The frequency of sendaisle is segmented, multiple frequency bands are obtained；
The predefined local frequency of root determines corresponding target frequency section；
It chooses preset number corresponding with the target frequency section and amplitude and phase adjusting is carried out to the digital baseband signal,
So that the amplitude error and phase deviation of the digital baseband signal are in the range preset.
The adaptability Enhancement Method of sendaisle quadrature alignment as described above, optionally, the method also includes:
Quadrature alignment is carried out to sendaisle.
The adaptability Enhancement Method of sendaisle quadrature alignment as described above, optionally, the frequency to sendaisle
Rate is segmented, comprising:
The frequency of the sendaisle is segmented according to fixed frequency section.
The adaptability Enhancement Method of sendaisle quadrature alignment as described above, optionally, the selection and the target
The corresponding preset number of frequency band carries out amplitude and phase adjusting to the digital baseband signal, so that the digital baseband signal
Amplitude error and phase deviation are in default range, comprising:
It chooses preset number corresponding with the target frequency section and amplitude and phase adjusting is carried out to the digital baseband signal,
So that the amplitude error of the digital baseband signal is in 5dB, phase deviation is in 10 °.
Second aspect, the embodiment of the invention provides a kind of adaptability enhancement device of sendaisle quadrature alignment, applications
In wireless communication sending module, the adaptability enhancement device of the sendaisle quadrature alignment includes:
Segmentation module is segmented for the frequency to sendaisle, obtains multiple frequency bands；
Determining module determines corresponding target frequency section for the predefined local frequency of root；
Adjustment module carries out width to the digital baseband signal for choosing preset number corresponding with the target frequency section
Degree and phase adjusted, so that the amplitude error of the digital baseband signal and phase deviation are in the range preset.
The adaptability enhancement device of sendaisle quadrature alignment as described above, optionally, the orthogonal school of the sendaisle
Positive adaptability enhancement device further include:
Correction module, for carrying out quadrature alignment to sendaisle.
The adaptability enhancement device of sendaisle quadrature alignment as described above, optionally, the segmentation module be used for according to
It is segmented according to frequency of the fixed frequency section to the sendaisle.
The adaptability enhancement device of sendaisle quadrature alignment as described above, optionally, the adjustment module is for selecting
Preset number corresponding with the target frequency section is taken to carry out amplitude and phase adjusting to the digital baseband signal, so that the number
The amplitude error of word baseband signal is in 5dB, and phase deviation is in 10 °.
Compared with prior art, the beneficial effects of the present invention are:
The adaptability Enhancement Method and device of sendaisle quadrature alignment provided by the invention can not change the same of algorithm
When, the application range of quadrature alignment algorithm is greatly promoted, so that the orthogonal performance in channel is improved, in the very wide Shi Youqi of working frequency
It is applicable in.Meanwhile the hardware resource of consumption is few, does not increase algorithm hardly possible.
Detailed description of the invention
Fig. 1 is the flow chart of the adaptability Enhancement Method for the sendaisle quadrature alignment that present pre-ferred embodiments provide.
Fig. 2 is the block diagram for the adaptability enhancement device that present pre-ferred embodiments propose sendaisle quadrature alignment.
Description of symbols: the adaptability enhancement device of 100- sendaisle quadrature alignment；110- segmentation module；120- is true
Cover half block；130- adjustment module；140- correction module.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
Term " first ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relatively heavy
The property wanted.
Referring to Fig. 1, the embodiment of the invention provides a kind of adaptability Enhancement Method of sendaisle quadrature alignment, application
In wireless communication sending module.The method described in Fig. 1 is described in detail below.
Step S101 is segmented the frequency of sendaisle.
Method provided in an embodiment of the present invention can be applied to wireless communication sending module, and the wireless communication sending module is used
In sending radiofrequency signal to the wireless communication receiver module for communicating connection, the wireless communication sending module be can be, but
It is not limited to WiFi communication module, ZigBee communication module etc..
Before sending signal to wireless communication receiver module, wireless communication sending module is preset according to user first
Rule is segmented the frequency of its sendaisle, obtains multiple frequency bands.When segmentation, it can be according to fixed frequency section to institute
The frequency for stating sendaisle is segmented, such as the frequency of sendaisle is 100MHZ-400MHZ, can be at interval of when segmentation
100MHZ divide a frequency band, it can by the frequency partition of sendaisle be 100MHZ-200MHZ, 200MHZ-300MHZ
And tri- frequency bands of 300MHZ-400MHZ.The frequency of sendaisle can also be segmented according to the characteristic of frequency, such as
A certain band frequency feature having the same, then can be divided into one section.In the embodiment of the present invention, it is not specifically limited.
It should be understood that the frequency band of sendaisle can be user and divide in advance in other some embodiments
's.
Step S102, the predefined local frequency of root determine corresponding target frequency section.
Wireless communication sending module is pre-defined corresponding local frequency, the local frequency and wireless communication sending module
The type of signal transmitted is related, such as WCDMA communication module is corresponding with different local frequencies from gsm communication module.
When being corrected to digital baseband signal, sending module is wirelessly communicated according to the type of its signal transmitted and determines it
Local frequency, and corresponding target frequency section is determined from multiple frequency bands according to local frequency.
Step S103 chooses preset number corresponding with target frequency section and carries out amplitude and phase tune to digital baseband signal
Section.
Each frequency band is pre-defined corresponding preset number, the preset number be used to carry out digital baseband signal amplitude and
Phase adjusted.After determining target frequency section, wireless communication sending module selects corresponding pre- according to target frequency section
It sets number and the digital baseband signal exported to it carries out amplitude and phase adjusting, so that the amplitude error and phase of digital baseband signal
Position deviation is in default range.In the embodiment of the present invention, the digital baseband signal can be intermediate-freuqncy signal or low frequency letter
Number.
Orthogonal performance is closely related with sendaisle for the quality of sendaisle output signal, sends mould for wireless communication
Block, the orthogonal performance of sendaisle usually requires to be improved by quadrature alignment algorithm, when being corrected algorithm, if orthogonal
Aberrations in property is more than the range of a bit, then quadrature alignment algorithm cannot play a role or even can deteriorate orthogonal performance, the range one
As be amplitude error≤5dB, phase deviation≤10 °.Therefore, in the embodiment of the present invention, the value of the preset range is number
The amplitude range of baseband signal is within 5dB, and the phase deviation of digital baseband signal is within 10 °.
In the embodiment of the present invention, the calculation formula of amplitude and phase adjusting is carried out to digital baseband signal are as follows:
I=dinI*cos(EΦ_value)*Eg_value+dinQ*sin(EΦ_value)*Eg_value
Q=dinQ
Wherein, I and Q is compensated digital base band quadrature signal, dinIAnd dinQIt is the I of original digital baseband signal
Road and the road Q signal, cos (EΦ_value) and sin (EΦ_value) it is the corresponding preset number of phase, Eg_valueFor the corresponding configuration of amplitude
Number.
Step S104 carries out quadrature alignment to sendaisle.
After carrying out amplitude and phase to digital baseband signal and adjusting, so that the amplitude error of digital baseband signal is tieed up
It holds within 5dB, the phase deviation of digital baseband signal maintains within 10 °.At this point, wireless communication sending module will carry out again
Digital baseband signal input sendaisle after amplitude and phase are adjusted carries out quadrature alignment to sendaisle.The orthogonal algorithm makes
By sendaisle output signal down coversion and pass through modulus with another local oscillation signal identical with sendaisle local oscillation signal frequency
After being transformed into base band, the quadrature error of sendaisle is obtained after numeric field processing, then again to the warp for being input to sendaisle
It crosses the digital baseband signal after amplitude and phase are adjusted further to be adjusted, the orthogonal performance of sendaisle is promoted, to mention
Rise the quality of output signal.
In conclusion the adaptability Enhancement Method of sendaisle quadrature alignment provided in an embodiment of the present invention can be in orthogonal school
Before just, by the quadrature error to channel according to frequency segmentation, and by corresponding preset number predetermined to digital base
Band signal carries out amplitude and phase adjusting, so that the amplitude of digital baseband signal and limit effectively covering in quadrature alignment algorithm
Within the scope of lid, then it is corrected again by quadrature alignment algorithm.In this way, can be greatly promoted just while not changing algorithm
The application range for handing over correcting algorithm, to improve the orthogonal performance in channel, and especially suitable when working frequency is very wide.Meanwhile
The hardware resource of consumption is few, does not increase algorithm difficulty, and hardly increases the power consumption of wireless communication sending module.
Referring to Fig. 2, being the adaptability enhancement device 100 for the sendaisle quadrature alignment that present pre-ferred embodiments provide
Functional block diagram, the adaptability enhancement device 100 of the sendaisle quadrature alignment includes segmentation module 110, determining module
120, adjustment module 130 and correction module 140.
The segmentation module 110 obtains multiple frequency bands for being segmented to the frequency of sendaisle.
It should be understood that the segmentation module 110 can be used for executing above-mentioned step S101.
The determining module 120 determines corresponding target frequency section for the predefined local frequency of root.
It should be understood that the determining module 120 can be used for executing above-mentioned step S102.
The adjustment module 130 is for choosing preset number corresponding with the target frequency section to the digital baseband signal
Amplitude and phase adjusting is carried out, so that the amplitude error of the digital baseband signal and phase deviation are in the range preset.
It should be understood that the adjustment module 130 can be used for executing above-mentioned step S103.
The correction module 140 is used to carry out quadrature alignment to sendaisle.
It should be understood that the correction module 140 can be used for executing above-mentioned step S104.
In conclusion the adaptability enhancement device 100 of sendaisle quadrature alignment provided in an embodiment of the present invention can be just
Before handing over correction, by the quadrature error to channel according to frequency segmentation, and pass through corresponding preset number logarithm predetermined
Word baseband signal carries out amplitude and phase adjusting, so that the amplitude of digital baseband signal and limit having in quadrature alignment algorithm
It imitates in coverage area, is then corrected by quadrature alignment algorithm.In this way, can be mentioned significantly while not changing algorithm
The application range for rising quadrature alignment algorithm, to improve the orthogonal performance in channel, and especially suitable when working frequency is very wide.Together
When, the hardware resource of consumption is few, does not increase algorithm difficulty, and hardly increase the power consumption of wireless communication sending module.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, flow chart and block diagram in attached drawing
Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code
Part, a part of the module, section or code, which includes that one or more is for implementing the specified logical function, to be held
Row instruction.It should also be noted that function marked in the box can also be to be different from some implementations as replacement
The sequence marked in attached drawing occurs.For example, two continuous boxes can actually be basically executed in parallel, they are sometimes
It can execute in the opposite order, this depends on the function involved.It is also noted that every in block diagram and or flow chart
The combination of box in a box and block diagram and or flow chart can use the dedicated base for executing defined function or movement
It realizes, or can realize using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.It needs
Illustrate, herein, relational terms such as first and second and the like be used merely to by an entity or operation with
Another entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this realities
The relationship or sequence on border.Moreover, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
So that described be merely a preferred embodiment of the present invention, it is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
So that described, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and it is any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of adaptability Enhancement Method of sendaisle quadrature alignment is applied to wireless communication sending module, which is characterized in that
The described method includes:
The frequency of sendaisle is segmented, multiple frequency bands are obtained；
The predefined local frequency of root determines corresponding target frequency section；
It chooses preset number corresponding with the target frequency section and amplitude and phase adjusting is carried out to the digital baseband signal, so that
The amplitude error and phase deviation of the digital baseband signal are in default range.
2. the adaptability Enhancement Method of sendaisle quadrature alignment according to claim 1, which is characterized in that the method
Further include:
Quadrature alignment is carried out to sendaisle.
3. the adaptability Enhancement Method of sendaisle quadrature alignment according to claim 1, which is characterized in that described pair of hair
The frequency in channel is sent to be segmented, comprising:
The frequency of the sendaisle is segmented according to fixed frequency section.
4. the adaptability Enhancement Method of sendaisle quadrature alignment according to claim 1, which is characterized in that the selection
Preset number corresponding with the target frequency section carries out amplitude and phase adjusting to the digital baseband signal, so that the number
The amplitude error and phase deviation of baseband signal are in default range, comprising:
It chooses preset number corresponding with the target frequency section and amplitude and phase adjusting is carried out to the digital baseband signal, so that
The amplitude error of the digital baseband signal is in 5dB, and phase deviation is in 10 °.
5. a kind of adaptability enhancement device of sendaisle quadrature alignment is applied to wireless communication sending module, which is characterized in that
The adaptability enhancement device of the sendaisle quadrature alignment includes:
Segmentation module is segmented for the frequency to sendaisle, obtains multiple frequency bands；
Determining module determines corresponding target frequency section for the predefined local frequency of root；
Adjustment module, for choose corresponding with target frequency section preset number to digital baseband signal progress amplitude and
Phase adjusted, so that the amplitude error of the digital baseband signal and phase deviation are in the range preset.
6. the adaptability enhancement device of sendaisle quadrature alignment according to claim 5, which is characterized in that the transmission
The adaptability enhancement device of channel quadrature alignment further include:
Correction module, for carrying out quadrature alignment to sendaisle.
7. the adaptability enhancement device of sendaisle quadrature alignment according to claim 5, which is characterized in that the segmentation
Module is used to be segmented the frequency of the sendaisle according to fixed frequency section.
8. the adaptability enhancement device of sendaisle quadrature alignment according to claim 5, which is characterized in that the adjusting
Module carries out amplitude and phase adjusting to the digital baseband signal for choosing preset number corresponding with the target frequency section,
So that the amplitude error of the digital baseband signal is in 5dB, phase deviation is in 10 °.
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