CN103685095B - A kind of method and apparatus realizing monkey chatter suppression - Google Patents
A kind of method and apparatus realizing monkey chatter suppression Download PDFInfo
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Abstract
The invention discloses a kind of method and apparatus realizing monkey chatter suppression；The method comprise the steps that the monkey chatter signal intensity in the signal that detection receives；Described monkey chatter signal intensity according to detecting carries out parameter configuration to wave filter；Utilize the wave filter after described parameter configuration to be filtered the described signal received processing, filter described in monkey chatter signal in the signal that receives.The method and apparatus using embodiment of the present invention, it is possible to reduce the wave filter decay to useful signal itself, achieves the suppression to monkey chatter signal the most as far as possible simultaneously, improves receptor reception under strong interference environment.
Description
Technical field
The present invention relates to wireless communication technology field, be specifically related to a kind of method realizing monkey chatter suppression
And device.
Background technology
In various radio communications and broadcast growing today, various wireless systems interfere problem
More and more prominent.Typically there is than working channel strong a lot of interference signal in adjacent channel.Right
In CMMB(China Mobile Multimedia Broadcasting, China Mobile multimedia broadcasting) be
For system, a kind of typical case is that the adjacent frequency of CMMB exists the strongest anolog TV signals；Due to tradition
Anolog TV signals be that single column is launched, and the mode of CMMB signal many employings SFN, so simulation
TV signal is typically significantly larger than CMMB and launches signal；Therefore, to close on simulated television launching tower attached
Closely, the anolog TV signals situation much stronger than digital television signals such as CMMB it is usually present.
For the broadband wireless broadcast communication system of digital multi-carrier system this kind of for CMMB, simulation neighbour
Road interference is generally better than far away useful signal itself, and traditional method many employings solid shape wave filter filters
This kind of interference.But, due to the impact of wireless channel environment, the relative intensity of monkey chatter signal also can
Change；Simultaneously as certain intermediate zone can be there is in wave filter, if intermediate zone falls at interference frequency
In road, then substantially inadequate to the inhibition of interference signal, in the place that interference signal is the strongest, can deposit
In the situation that interference signal can not be effectively suppressed；Meanwhile, if intermediate zone falls at useful signal
In frequency band, useful signal can be caused again to lose.The most typically use solid shape wave filter, it is impossible to root
Be adjusted flexibly according to the concrete condition of monkey chatter, do not interfere with or disturb the least in the case of can cause and set
Meter waste, some sideband signals originally needing not be under the impact of wave filter intermediate zone are affected；And
There is again, in the case of interference is very strong, the phenomenon that rejection ability is not enough.
Summary of the invention
In view of the above problems, the present invention propose one overcome the problems referred to above or at least in part solve on
State problem a kind of realize the method for monkey chatter suppression and a kind of realize what monkey chatter suppressed
Device.
According to one aspect of the present invention, it is provided that a kind of method realizing monkey chatter suppression, including:
Monkey chatter signal intensity in the signal that detection receives；According to the described monkey chatter signal detected
Intensity carries out parameter configuration to wave filter；Wave filter after described parameter configuration is utilized to receive described
Signal is filtered processing, filter described in monkey chatter signal in the signal that receives.
Preferably, the monkey chatter signal intensity in the signal that described detection receives includes: arrange system
The different bandwidth of baseband filter；The signal power received described in detecting respectively in described different bandwidth position；
Calculate the difference of the high bandwidth position signal power that receive corresponding with low bandwidth position, connect as described using this difference
Monkey chatter signal intensity in the signal received.
Preferably, described wave filter is analog baseband filter or digital baseband filter.
Preferably, the described monkey chatter signal intensity that described basis detects carries out parameter to wave filter and joins
Put and include: obtain the stopband attenuation of described wave filter；When described monkey chatter signal intensity changes,
The decay of described filter stop bend is set to and described monkey chatter signal intensity corresponding relation in direct ratio.
Preferably, described described filter stop bend decay is set to be directly proportional to described interference signal intensity
Example corresponding relation includes: when described monkey chatter signal intensity strengthens, increases described filter stop bend and declines
Subtract, described wave filter intermediate zone is elapsed in band；When described monkey chatter signal strength weakening, subtract
Few described filter stop bend decay, elapses described wave filter intermediate zone outside band.
According to another aspect of the present invention, it is provided that a kind of device realizing monkey chatter suppression, including:
Detector unit, for the monkey chatter signal intensity of the signal that detection receives；Dispensing unit, for root
The monkey chatter signal intensity detected according to described detector unit carries out parameter configuration to wave filter；And,
Filter unit, for the wave filter utilizing described dispensing unit to configure, the described signal received is filtered
Ripple processes, filter described in monkey chatter signal in the signal that receives.
Preferably, described detector unit includes: arrange module, for arranging systems baseband wave filter not
Same bandwidth；Go-on-go module, described for detecting respectively under the described different bandwidth position arranging module setting
The signal power received；And, computing module, it is used for calculating that high bandwidth position is corresponding with low bandwidth position to be connect
The difference of the signal power received, using this difference as the monkey chatter signal intensity of the described signal received.
Preferably, described dispensing unit, specifically for filtering analog baseband filter or digital baseband
Device carries out parameter configuration.
Preferably, described dispensing unit includes: acquisition module, declines for obtaining the stopband of described wave filter
Subtract；Processing module, for when described monkey chatter signal intensity changes, hinders described wave filter
Band decay is set to be arranged to direct proportion corresponding relation with described monkey chatter signal intensity.
Preferably, described processing module includes: the first change submodule, for believing when described monkey chatter
During number intensity enhancing, increase the decay of described filter stop bend, described wave filter intermediate zone is elapsed in band；
And/or, the second change submodule, for when described monkey chatter signal strength weakening, reduces described filter
Ripple device stopband attenuation, elapses described wave filter intermediate zone outside band.
Use methods and apparatus of the present invention, by the real-time detection to interference, and according to testing result pair
Wave filter carries out parameter configuration, and the wave filter after recycling configuration parameter filters monkey chatter signal, thus
Decreasing the wave filter decay to useful signal itself to greatest extent, to achieve the most as far as possible right simultaneously
The suppression of monkey chatter signal, improves receptor reception under strong interference environment.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the skill of the present invention
Art means, and can being practiced according to the content of description, and in order to allow, the present invention's is above and other
Objects, features and advantages can become apparent, below especially exemplified by the detailed description of the invention of the present invention.
Accompanying drawing explanation
By reading the detailed description of hereafter preferred implementation, various other advantage and benefit for this
Field those of ordinary skill will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred implementation,
And it is not considered as limitation of the present invention.And in whole accompanying drawing, be denoted by the same reference numerals
Identical parts.In the accompanying drawings:
Fig. 1 shows a kind of method flow schematic diagram realizing monkey chatter suppression of the embodiment of the present invention；
Fig. 2 shows that a kind of method flow realizing monkey chatter suppression of another embodiment of the present invention shows
It is intended to；
Fig. 3 shows a kind of apparatus structure schematic block diagram realizing monkey chatter suppression of the embodiment of the present invention.
Detailed description of the invention
It is known that for traditional wave filter, if needing to strengthen the ability of suppression monkey chatter,
It is accomplished by increasing the exponent number of wave filter, and the wave filter that design transition band is the most precipitous.But with OFDM
For the broadcasting communication technology of core technology owing to have employed multi-transceiver technology and inside and outside intertexture and error-correcting decoding,
Even if there being portion subcarriers to be filtered by wave filter in the course of the work, still can correct demodulated signal.As
For CMMB, even if subcarrier has the loss of 20%, still may correctly demodulate.The present invention is just
Based on this feature, propose at strong ACI(Adjacent for OFDM broadband broadcast and mobile communication
Channel Interference, adjacent frequency is disturbed) method that uses variable filter bandwidth when working under environment,
Strengthen the ability of suppression ACI interference；Further, owing to digital filter bandwidth easily changes, the most significantly drop
Low system cost.
It is more fully described the exemplary embodiment of the disclosure below with reference to accompanying drawings.Although accompanying drawing shows
The exemplary embodiment of the disclosure, it being understood, however, that may be realized in various forms the disclosure and not
Should be limited by embodiments set forth here.On the contrary, it is provided that these embodiments are able to more thoroughly
Understand the disclosure, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
With reference to Fig. 1, it is shown that a kind of side realizing monkey chatter suppression
The flow chart of steps of method embodiment 1, specifically may include steps of:
Step 110: the monkey chatter signal intensity in the signal that detection receives；
It should be noted that the well-known broadband wireless broadcast for digital multi-carrier systems such as CMMB
For communication system, the useful demodulated signal that receiver receives is fixing and for sender and recipient
It is all known, is referred to as in the present embodiment " standard signal ", the most similar repeat no more；This
In bright embodiment, the signal received includes: standard signal and monkey chatter signal.It is of course also possible to
The signal received only has standard signal, and the most now monkey chatter signal intensity is zero.Therefore, docking is needed
Monkey chatter signal in the signal received suppresses.
Concrete, those of ordinary skill in the art readily understand and can use various ways of the prior art
Detect monkey chatter signal intensity, thus suppress.And the present embodiment proposes real in the following ways
Existing, but be not limited thereto:
S111: the different bandwidth of systems baseband wave filter is set；
S112: detect the signal power received respectively in above-mentioned different bandwidth position；Wherein, special at some
Determine bandwidth position and may detect that the power of standard signal, and may detect that standard is believed in other bandwidth positions
Number and the power of monkey chatter signal.
S113: calculate the difference of the high bandwidth position signal power that receive corresponding with low bandwidth position, with this difference
As the monkey chatter signal intensity in the signal received；Concrete, believe if there is no monkey chatter
Number, then the signal power received in different bandwidth position should be the most all standard signal power,
And if the signal power once received in high bandwidth position is more than the signal power that low bandwidth position receives,
The most necessarily comprise monkey chatter signal；Therefore, the present embodiment proposes to be defined as the difference of the two power
Monkey chatter signal intensity in the signal received.
Certainly, those of ordinary skill in the art readily understand and can also be set in system operating center frequency
Directly detecting interference signal intensity on the mid frequency of ACI passage, the present embodiment repeats no more.
Step 120: the monkey chatter signal intensity according to detecting carries out parameter configuration to wave filter；
In actual application, it both can be simulation that the present embodiment proposes to carry out the wave filter of parameter configuration
Baseband filter, it is also possible to be digital baseband filter；In view of the motility of digital filter, this reality
Execute example to propose to use digital baseband filter；And the digital baseband filter in the present embodiment can be in advance
The one group of wave filter designed, it is also possible to obtained by system-computed according to the actual requirements, specifically repeat no more.
It should be noted that what the present embodiment utilized CMMB etc. with OFDM as core is wirelessly transferred system
Feature, first obtain the stopband attenuation of aforesaid filters, and when monkey chatter signal intensity changes,
The intermediate zone making wave filter falls in useful signal channel, i.e. arranges above-mentioned filter stop bend and decays with above-mentioned
Monkey chatter signal intensity corresponding relation in direct ratio；Wherein, preferably at neighboring trace signal intensity
When becoming strong reduce wave filter bandwidth: for same wave filter, passband reduce, intermediate zone therewith to
Medial movement, stopband attenuation increases, and the suppression to monkey chatter increases therewith, although so can cause portion
Point useful signal is attenuated and is filtered by wave filter the most completely, but due in multi-carrier broadband signal letter
Road coding and error correction so that useful signal still can be largely recovered correctly out；And believe at neighboring trace
The when of number weakened, can select to reduce the stopband attenuation of wave filter, as used the filter of lower exponent number
Ripple device or the simpler wave filter of structure, the intermediate zone of wave filter can also elapse to neighboring trace direction, i.e. increase
Adding filter passband width, intermediate zone moves laterally, and stopband attenuation reduces, to reduce useful as far as possible
The decay of signal.
However, it is desirable to explanation be above-mentioned various in the case of, the selection of wave filter is all with useful signal
Still enough demodulation signal to noise ratios are had to be foundation: as a example by CMMB, at AWGN(Additive White
Gaussian Noise, additive white Gaussian noise) under channel condition, QPSK(Quadrature Phase Shift
Keying, QPSK) the demodulation signal-noise ratio threshold of modulation system is 1.7dB, if current
In band, signal to noise ratio is more than this value, it is possible to normally demodulate, the i.e. optional filtering meeting this demodulation condition
Device.Recycling meets the wave filter of this type of condition and carries out monkey chatter target signal filter when processing, when neighboring trace is done
Disturb enhancing, when causing demodulating signal to noise ratio close to demodulation threshold, increase filter stop bend decay, wave filter mistake
Cross band to elapse in band；Otherwise, when monkey chatter weakens, when demodulation signal to noise ratio has bigger allowance, reduce
Filter stop bend decays, and wave filter intermediate zone elapses outside band.
Step 130: utilize the wave filter after described parameter configuration that the above-mentioned signal received is filtered
Process, filter the monkey chatter signal in this signal received.
Concrete, the present embodiment proposes to carry out according to the above-mentioned wave filter set-up mode signal to receiving
Filtering Processing, filters monkey chatter signal therein, i.e. may utilize above-mentioned filter stop bend and decays with above-mentioned
The direct proportion corresponding relation of monkey chatter signal intensity is to the monkey chatter signal in this signal received
Carry out filtering process, do not repeat them here.
Certainly, above-mentioned special type information and judgment mode thereof are intended only as example, are implementing the embodiment of the present invention
Time, other special type informations and judgment mode thereof can be set according to practical situation, the embodiment of the present invention is to this
It is not any limitation as.It addition, in addition to above-mentioned special type information and judgment mode thereof, those skilled in the art are also
Can use other special type informations and judgment mode thereof according to actual needs, the embodiment of the present invention is to this most not
It is any limitation as.
It can be seen that the method using the above embodiment of the present invention, by the real-time detection to monkey chatter,
And according to testing result, wave filter being carried out parameter configuration, the wave filter after recycling configuration parameter filters neighbour
Road interference signal, thus decrease the wave filter decay to useful signal itself to greatest extent, the most also
Achieve the suppression to monkey chatter signal as far as possible, improve CMMB receptor at strong jamming ring
Reception under border.
For embodiment of the method, in order to be briefly described, therefore it is all expressed as a series of combination of actions,
But those skilled in the art should know, the embodiment of the present invention not limiting by described sequence of movement
System, because according to the embodiment of the present invention, some step can use other orders or carry out simultaneously.Its
Secondary, those skilled in the art also should know, embodiment described in this description belongs to be preferable to carry out
Example, necessary to the involved action not necessarily embodiment of the present invention.
With reference to Fig. 2, it is shown that a kind of realize monkey chatter suppression
Method flow schematic diagram, the method includes:
Step 210: respectively baseband signal bandwidth is set to 3.8MHz and 5MHz；
Step 220: detection bandwidth is signal power P1 received during 3.8MHz, detection bandwidth is
Signal power P2 received during 5MHz；
Step 230: calculate the difference of above-mentioned signal power P2 and P1, if this difference P2-P1 is more than certain
One threshold value preset i.e. can determine that ACI disturbs, and determines ACI according to the size of aforementioned P2-P1
Intensity；
Step 240: repeat the above steps 220 and step 230, and when above-mentioned monkey chatter signal intensity
When changing, according to the difference of above-mentioned P2 from P1, the stopband attenuation of digital filter is carried out different setting
Put；When the difference of above-mentioned P2 Yu P1 increases, increase filter stop bend decay, by wave filter intermediate zone
Elapse in band, and with the wave filter updated, this monkey chatter signal is filtered process；Otherwise, when
When the difference of above-mentioned P2 Yu P1 diminishes, reduce filter stop bend decay, by wave filter intermediate zone outside band
Passage, and with the wave filter updated, this monkey chatter signal is filtered process.
With reference to Fig. 3, it is shown that a kind of dress realizing monkey chatter suppression
Put the structured flowchart of embodiment, specifically can include such as lower component: detector unit 310, dispensing unit 320
With filter unit 330；Wherein,
The above-mentioned detector unit 310 monkey chatter signal intensity in the signal that detection receives；Above-mentioned
Dispensing unit 320 for the monkey chatter signal intensity that detects according to above-mentioned detector unit 310 to filtering
Device carries out parameter configuration；Above-mentioned filter the filtering that unit 330 configures for utilizing above-mentioned dispensing unit 320
The signal received is filtered processing by device, filters the monkey chatter signal in this signal received.
Additionally, above-mentioned detector unit 310 may also include (not shown): arrange module, go-on-go mould
Block and computing module；Wherein, the above-mentioned module that arranges is for arranging the different bandwidth of systems baseband wave filter；
Above-mentioned go-on-go module is for detecting above-mentioned reception above-mentioned setting respectively under the different bandwidth position that module is arranged
The signal power arrived；Above-mentioned computing module is for calculating the high bandwidth position letter that receive corresponding with low bandwidth position
The difference of number power, when above-mentioned difference is more than predetermined threshold value, using this difference as the signal received in
Monkey chatter signal intensity.
It should be noted that above-mentioned dispensing unit configuration wave filter concretely analog baseband filter or
Person's digital baseband filter.
In addition, above-mentioned dispensing unit 320 may also include (not shown): acquisition module and place
Reason module；Wherein, this acquisition module is for obtaining the stopband attenuation of wave filter；This processing module is used for will
The decay of above-mentioned filter stop bend is arranged to direct proportion corresponding relation with above-mentioned interference signal intensity.
Concrete, above-mentioned processing module includes (not shown): first changes submodule and/or second
Change submodule；Wherein, above-mentioned first change module, for when monkey chatter signal intensity strengthens, increases
Add filter stop bend decay, by wave filter intermediate zone to band in elapse, with update high stopband attenuation to upper
State interference signal to carry out filtering process；Above-mentioned second change module is for when monkey chatter signal strength weakening
Time, reduce filter stop bend decay, wave filter intermediate zone is elapsed outside band, decline with the low-resistance belt updated
Subtract and above-mentioned interference signal is filtered process.
For device embodiment, due to itself and embodiment of the method basic simlarity, so the comparison described
Simply, relevant part sees the part of embodiment of the method and illustrates.
Algorithm and display be not solid with any certain computer, virtual system or miscellaneous equipment provided herein
Have relevant.Various general-purpose systems can also be used together with based on teaching in this.As described above,
Construct the structure required by this kind of system to be apparent from.Additionally, the present invention is also not for any specific
Programming language.It is understood that, it is possible to use various programming languages realize the content of invention described herein,
And the description done language-specific above is the preferred forms in order to disclose the present invention.
In description mentioned herein, illustrate a large amount of detail.It is to be appreciated, however, that this
Inventive embodiment can be put into practice in the case of not having these details.In some instances, not
It is shown specifically known method, structure and technology, in order to do not obscure the understanding of this description.
Similarly, it will be appreciated that in order to simplify the disclosure and help understand in each inventive aspect one
Or multiple, above in the description of the exemplary embodiment of the present invention, each feature of the present invention is sometimes
It is grouped together in single embodiment, figure or descriptions thereof.But, should be by the disclosure
Method be construed to reflect an intention that i.e. the present invention for required protection require ratio in each claim
The middle more feature of feature be expressly recited.More precisely, as the following claims reflect
As, inventive aspect is all features less than single embodiment disclosed above.Therefore, it then follows
Claims of detailed description of the invention are thus expressly incorporated in this detailed description of the invention, the most each right
Requirement itself is all as the independent embodiment of the present invention.
Those skilled in the art are appreciated that and can carry out the module in the equipment in embodiment certainly
Change adaptively and they are arranged in one or more equipment different from this embodiment.Permissible
Module in embodiment or unit or assembly are combined into a module or unit or assembly, and in addition may be used
To put them into multiple submodule or subelement or sub-component.Except such feature and/or process or
Outside at least some in unit excludes each other, can use any combination that (this specification is included companion
With claim, summary and accompanying drawing) disclosed in all features and so disclosed any method or
All processes of person's equipment or unit are combined.Unless expressly stated otherwise, this specification (includes companion
With claim, summary and accompanying drawing) disclosed in each feature can by provide identical, equivalent or phase
Replace like the alternative features of purpose.
Although additionally, it will be appreciated by those of skill in the art that some embodiments above-mentioned at this include it
Some feature included in its embodiment rather than further feature, but the group of the feature of different embodiment
Close and mean to be within the scope of the present invention and formed different embodiments.Such as, in following power
In profit claim, one of arbitrarily can mode making in any combination of embodiment required for protection
With.
The all parts embodiment of the present invention can realize with hardware, or to process at one or more
The software module run on device realizes, or realizes with combinations thereof.Those skilled in the art should
Understand, microprocessor or digital signal processor (DSP) can be used in practice to realize basis
Some or all parts in the equipment carrying out webpage loading of the embodiment of the present invention some or complete
Portion's function.The present invention is also implemented as performing part or all of method as described herein
Equipment or device program (such as, computer program and computer program).Such realization
The program of the present invention can store on a computer-readable medium, or can have one or more letter
Number form.Such signal can be downloaded from internet website and obtain, or carries on carrier signal
Confession, or provide with any other form.
The present invention will be described rather than limits the invention to it should be noted above-described embodiment,
And those skilled in the art can design replacement without departing from the scope of the appended claims
Embodiment.In the claims, any reference marks that should not will be located between bracket is configured to right
The restriction required.Word " comprises " and does not excludes the presence of the element or step not arranged in the claims.Position
Word "a" or "an" before element does not excludes the presence of multiple such element.The present invention can
With by means of including the hardware of some different elements and realizing by means of properly programmed computer.
If in the unit claim listing equipment for drying, several in these devices can be by same
Individual hardware branch specifically embodies.Word first, second and third use do not indicate that any order.
Can be title by these word explanations.
Claims (8)
1. the method realizing monkey chatter suppression, it is characterised in that including:
Monkey chatter signal intensity in the signal that detection receives；Monkey chatter signal intensity in the signal that described detection receives includes: arrange the different bandwidth of systems baseband wave filter；The power of the signal received described in detecting respectively in described different bandwidth position；Calculate the difference of the high bandwidth position signal power that receive corresponding with low bandwidth position, using this difference as the described signal received in monkey chatter signal intensity；
Described monkey chatter signal intensity according to detecting carries out parameter configuration to wave filter；
Utilize the wave filter after described parameter configuration to be filtered the described signal received processing, filter described in monkey chatter signal in the signal that receives.
2. the method for claim 1, it is characterised in that:
Described wave filter is analog baseband filter or digital baseband filter.
3. method as claimed in claim 1 or 2, it is characterised in that the described monkey chatter signal intensity that described basis detects carries out parameter configuration to wave filter and includes:
Obtain the stopband attenuation of described wave filter；
When described monkey chatter signal intensity changes, the decay of described filter stop bend is set to and described monkey chatter signal intensity corresponding relation in direct ratio.
4. method as claimed in claim 3, it is characterised in that described the decay of described filter stop bend is set to corresponding relation in direct ratio with described interference signal intensity includes:
When described monkey chatter signal intensity strengthens, increase the decay of described filter stop bend, described wave filter intermediate zone is elapsed in band；
When described monkey chatter signal strength weakening, reduce the decay of described filter stop bend, described wave filter intermediate zone is elapsed outside band.
5. the device realizing monkey chatter suppression, it is characterised in that including:
Detector unit, the monkey chatter signal intensity in the signal that detection receives；Described detector unit includes: arrange module, for arranging the different bandwidth of systems baseband wave filter；
Go-on-go module, is used under the described different bandwidth position arranging module setting the signal power received described in detection respectively；And, computing module, for calculating the difference of the high bandwidth position signal power that receive corresponding with low bandwidth position, using this difference as the described signal received in monkey chatter signal intensity；
Dispensing unit, carries out parameter configuration for the monkey chatter signal intensity detected according to described detector unit to wave filter；And,
Filter unit, for the wave filter that utilizes described dispensing unit configure, the described signal received be filtered process, filter described in monkey chatter signal in the signal that receives.
6. device as claimed in claim 5, it is characterised in that
Described dispensing unit, specifically for carrying out parameter configuration to analog baseband filter or digital baseband filter.
7. the device as described in claim 5 or 6, it is characterised in that described dispensing unit includes:
Acquisition module, for obtaining the stopband attenuation of described wave filter；
Processing module, for when described monkey chatter signal intensity changes, is set to be arranged to direct proportion corresponding relation with described monkey chatter signal intensity by the decay of described filter stop bend.
8. device as claimed in claim 7, it is characterised in that described processing module includes:
First change submodule, for when described monkey chatter signal intensity strengthens, increases the decay of described filter stop bend, described wave filter intermediate zone is elapsed in band；And/or,
Second change submodule, for when described monkey chatter signal strength weakening, reduces the decay of described filter stop bend, described wave filter intermediate zone is elapsed outside band.
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| CN102077473A (en) * | 2008-07-01 | 2011-05-25 | 高通股份有限公司 | Dynamic filtering for adjacent channel interference suppression |
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| CN101018218A (en) * | 2006-12-14 | 2007-08-15 | 北京创毅视讯科技有限公司 | An interference restraint method of the adjacent channels and signal receiving end |
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