CN110141270A - Beam synthesizing method and equipment - Google Patents
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Abstract
The embodiment of the present invention provides a kind of beam synthesizing method and equipment.This method is applied to medical supersonic equipment, which includes hardware programmable logical device and processor.This method comprises: hardware programmable logical device obtains signal to be processed, signal to be processed is that the echo-signal that medical supersonic equipment interconnection receives carries out pretreated signal；Hardware programmable logical device carries out the sparse processing of signal to signal to be processed, and data are transferred to processor by treated；Processor carries out interpolation processing to the data received, and carries out Beam synthesis to the data after interpolation.The embodiment of the present invention can simply, conveniently, accurately realize Beam synthesis.
Description
Technical field
The present embodiments relate to medical ultrasonic diagnostic technology more particularly to a kind of beam synthesizing method and equipment.
Background technique
In medical ultrasonic diagnostic technology, most important part is Beam synthesis, and the key of Beam synthesis is to difference
The delay of channel data on different depth calculates.Due to the data break on different depth be it is very small, magnitude is several
Ten microns, this results in data volume very big, and so big data volume cannot be in existing hardware transport interface real-time Transmission to place
It manages device and carries out Beam synthesis, therefore, mainstream ultrasonic device producer carries out Beam synthesis using hardware programmable logical device.
But it is complex using hardware programmable logic progress Beam synthesis, the logics such as clock are directed to, difficulty is disposed
Greatly.Therefore, a kind of simple, convenience and the Beam synthesis scheme accurately realized are needed at present.
Summary of the invention
The embodiment of the present invention provides a kind of beam synthesizing method and equipment, with wave beam that is simple, conveniently, accurately realizing
Synthesis.
In a first aspect, the embodiment of the present invention provides a kind of beam synthesizing method, it is applied to medical supersonic equipment, this is medical super
Acoustic equipment includes hardware programmable logical device and processor.This method comprises:
Hardware programmable logical device obtains signal to be processed, and signal to be processed is time that medical supersonic equipment interconnection receives
Wave signal carries out pretreated signal；
Hardware programmable logical device carries out the sparse processing of signal to signal to be processed, and data are transferred to by treated
Processor；
Processor carries out interpolation processing to the data received, and carries out Beam synthesis to the data after interpolation.
Second aspect, the embodiment of the present invention provide a kind of medical supersonic equipment, comprising:
Module is obtained, for obtaining signal to be processed, signal to be processed is the echo letter that medical supersonic equipment interconnection receives
Number carry out pretreated signal；
First processing module, for carrying out the sparse processing of signal to signal to be processed, and data are transferred to by treated
Second processing module；
Second processing module for carrying out interpolation processing to the data received, and carries out wave beam to the data after interpolation
Synthesis.
The third aspect, the embodiment of the present invention provide a kind of medical supersonic equipment, comprising:
Hardware programmable logical device, for carrying out the sparse processing of signal to the signal to be processed of acquisition, and will be after processing
Data be transferred to processor, signal to be processed is that the echo-signal that medical supersonic equipment interconnection receives carries out pretreated letter
Number；
Processor for carrying out interpolation processing to the data received, and carries out Beam synthesis to the data after interpolation.
Fourth aspect, the embodiment of the present invention provide a kind of readable storage medium storing program for executing, which is stored with calculating
Machine program realizes the step of processor executes in method as described in relation to the first aspect when computer program is executed by processor.
Beam synthesizing method provided in an embodiment of the present invention and equipment are obtained to be processed by hardware programmable logical device
Signal, signal to be processed are that the echo-signal that medical supersonic equipment interconnection receives carries out pretreated signal, and later, hardware can
Programmed logic device carries out the sparse processing of signal to signal to be processed, and data are transferred to processor by treated, by handling
Device carries out interpolation processing to the data received, and carries out Beam synthesis to the data after interpolation.Wherein, hardware programmable logic
After device carries out the sparse processing of signal to signal to be processed, by treated, data are transferred to processor, medical super to reduce
Hardware programmable logical device inside acoustic equipment and between processor real-time Transmission data volume, so as to be passed through by processor
Software realization Beam synthesis；Compared to the implementation for carrying out Beam synthesis is realized by hardware programmable logical device, processor can
With it is simple, conveniently, accurately realize Beam synthesis.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do one simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments are also possible to obtain other drawings based on these drawings for those of ordinary skill in the art.
Fig. 1 provides the flow chart of beam synthesizing method for one embodiment of the invention；
Signal intensity schematic diagram in the beam synthesizing method that Fig. 2 provides for one embodiment of the invention；
Fig. 3 is the sample process schematic diagram that one embodiment of the invention provides；
Fig. 4 is the relevant parameters schematic diagrames such as the initial same-phase address that one embodiment of the invention provides；
Fig. 5 is the multichannel buffer area schematic diagram that one embodiment of the invention provides；
Fig. 6 is that another embodiment of the present invention provides the flow diagrams of beam synthesizing method；
Fig. 7 is the structural schematic diagram for the medical supersonic equipment that one embodiment of the invention provides.
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 solution in the embodiment of the present invention is described, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.
Traditional Beam synthesis, need to be by having the analog-digital converter (analog-to-digital compared with high sampling rate
Converter, referred to as: the ADC) echo data in all channels of acquisition, in 40MHz or more, port number is the sample rate of general ADC
32, it 48,64,128 differs, and each channel includes the information of all sampled points in depth, so big data volume can not
In existing hardware transport interface real-time Transmission to processor, such as central processing unit (central processing unit,
Referred to as: CPU), Beam synthesis is carried out, therefore, mainstream ultrasound producer is slow according to time sequencing using hardware programmable logical device
Sample point data in nonresident portion depth, and constantly update the realization that data cached mode carries out Beam synthesis.Due to multi-pass
After the digital signal of road high sampling rate carries out Beam synthesis, multi-channel data is synthesized to the data of a line, data volume is significantly
It reduces, uploading to processor end again at this time can be by universal serial bus (Universal Serial Bus, referred to as: USB)
3.0 or high speed serialization computer expansion bus standard (peripheral component interconnect express,
Referred to as: PCIE) interface real-time Transmission.In addition, hardware programmable logical device when realizing Beam synthesis, needs to store wave beam conjunction
At used initial parameter, meanwhile, hardware programmable logical device need to carry out adding, subtracting in Beam synthesis algorithmic formula,
The operations such as multiplication and division, evolution, so many operation and parameter storage greatly consume the storage of hardware programmable logical device
The chips scarce resource such as area, multiplier.The hardware programmable logical device no matter how optimized realizes Beam synthesis, substantially only
There are two types of, first is that hardware programmable logical device directly calculates Beam synthesis delay parameter, second is that hardware programmable logical device
Using precomputation initial parameter, Beam synthesis delay parameter is calculated indirectly by way of iteration, both modes all avoid not
Hardware programmable logical device participates in the synthesis operation of multi-channel data.Therefore, hardware programmable logical device how is reduced
Beam synthesis realize expense or avoid using hardware chip realize Beam synthesis, to entire medical supersonic plant engineering to close
It is important.
Based on above-mentioned, the embodiment of the present invention provides a kind of beam synthesizing method and equipment, by software realization Beam synthesis,
Avoid it is all in hardware realization Beam synthesis algorithm add, subtract, the operations such as multiplication and division, evolution, easily and conveniently realize that wave beam closes
At.
Fig. 1 provides the flow chart of beam synthesizing method for one embodiment of the invention.The embodiment of the present invention provides a kind of wave beam
Synthetic method, this method are applied to medical supersonic equipment, wherein medical supersonic equipment includes hardware programmable logical device and place
Manage device.
As shown in Figure 1, this method comprises:
S101, hardware programmable logical device obtain signal to be processed.
Wherein, which is that the echo-signal that medical supersonic equipment interconnection receives carries out pretreated signal.
In practical applications, medical supersonic equipment, for example, color ultrasound equipment, emits ultrasonic signal to detected body, it is super at this
Acoustical signal is reflected back when encountering barrier (i.e. detected body), by color ultrasound equipment received signal, that is, echo-signal.
It is appreciated that pretreatment here refers to that conventional treatment, such as Simulation scale-up, digital sample etc. are handled.Optionally,
Medical supersonic equipment further includes that amplifier and sampler can have in this way, hardware programmable logical device obtains signal to be processed
Body are as follows: hardware programmable logical device obtains the signal to be processed that sampler exports through High Speed Serial, which is back
The signal that wave signal successively obtains after amplifier and sampler.Illustratively, sampler ADC, signal to be processed are multi-pass
Road high-frequency digital signal.
S102, hardware programmable logical device carry out the sparse processing of signal to signal to be processed, and will treated data
It is transferred to processor.
According to Such analysis it is found that the data volume of signal to be processed is larger, therefore, the embodiment of the present invention can be compiled by hardware
Journey logical device carries out the sparse processing of signal to signal to be processed, is transferred to processor by hardware programmable logical device to reduce
Data data volume.
S103, processor carry out interpolation processing to the data received, and carry out Beam synthesis to the data after interpolation.
In view of the precision of Beam synthesis is related with data transfer rate, and the data that processor obtains are to carry out the sparse processing of signal
Data (comparing signal to be processed, the data transfer rate for carrying out sparse treated the data of signal reduces) afterwards, therefore, in the step,
Processor carries out interpolation processing to the data first after the data for receiving the transmission of hardware programmable logical device, restores
Data transfer rate, thus guarantee the precision for carrying out Beam synthesis through the embodiment of the present invention, it can be the case where not sacrificing picture quality
Under, Beam synthesis is quickly and easily realized by software.
The embodiment of the present invention obtains signal to be processed by hardware programmable logical device, and signal to be processed is medical super
Acoustic equipment carries out pretreated signal to the echo-signal received, and later, hardware programmable logical device is to letter to be processed
Number carry out the sparse processing of signal, and will treated that data are transferred to processor, the data received are carried out by processor slotting
Value processing, and Beam synthesis is carried out to the data after interpolation.Wherein, hardware programmable logical device carries out letter to signal to be processed
After number sparse processing, will treated that data are transferred to processor, to reduce the hardware programmable inside medical supersonic equipment
The data volume of real-time Transmission between logical device and processor, so as to pass through software realization Beam synthesis by processor；It compares
Realize the implementation for carrying out Beam synthesis by hardware programmable logical device, processor can simply, conveniently, it is accurately real
Existing Beam synthesis.
On the basis of the above embodiments, a kind of in the specific implementation, hardware programmable logical device to signal to be processed into
The sparse processing of row signal may include: that hardware programmable logical device carries out down conversion process to signal to be processed, it is multiple to obtain frequency reducing
Signal；Hardware programmable logical device carries out low-pass filtering treatment to frequency reducing complex signal, obtains low frequency signal；Hardware programmable is patrolled
Volume device is sampled processing to low frequency signal, obtain described in treated data.By hardware programmable logical device to acquisition
Signal to be processed carry out down conversion process, sample process, treated data are obtained, on the basis of meeting Nyquist's theorem
The data volume in depth is greatly reduced, so as to be transmitted directly to processor by internal bus, by processor according to pumping
The sampling rate of sample processing carries out interpolation to treated the data and reverts to the data transfer rate before frequency reducing, while realizing in universe
Point-by-point Beam synthesis ensure that the precision of Beam synthesis, so that final ultrasound image still keeps qualitative picture.
Illustratively, for signal to be processed as shown in 21 in Fig. 2, centre frequency is f0 (MHz)；Frequency reducing complex signal such as Fig. 2
In shown in 22, including high frequency section Z2 (centre frequency 2f0) and low frequency part Z1 (centre frequency 0).Wherein, frequency reducing frequency
For f0, low-pass filtering eliminates high-frequency residual components and retains low frequency part Z1, i.e. low frequency signal as shown in 23 in Fig. 2.With reference to
Fig. 3 is sampled processing to low frequency signal 31, the data 32 that obtain that treated.
Supplementary explanation, the sampling rate of sample process are determined according to the closeness of pending data.Wherein, Fig. 3
It is illustrated with sampling rate for 2, but the embodiment of the present invention is not limited system.Optionally, the data transfer rate of pending data
(closeness) is bigger, and sampling rate is bigger；The data transfer rate of pending data is smaller, and sampling rate is smaller.
Identical as the data transfer rate of pending data for the data that keep processor to carry out Beam synthesis, processor is to receiving
Data carry out interpolation processing, may include: sampling rate of the processor based on sample process, interpolation carried out to the data that receive
Processing, to guarantee the precision of Beam synthesis.
Further, processor carries out Beam synthesis to the data after interpolation, may include:
1) for the data after the corresponding interpolation in each channel, processor is carried out the following processing:
A, the initial same-phase address of data in each depth in channel is calculated；
B, according to initial same-phase address and frequency reducing frequency, the corresponding antiphase correction of data in each depth in Acquisition channel
Information, frequency reducing frequency are the corresponding frequency of down conversion process；
C, information is corrected according to antiphase, antiphase correction is carried out to the data after the corresponding interpolation in channel；
D, it according to the data after the fractional part of initial same-phase address and the correction of integer part and antiphase, obtains
Data after the corresponding final correction in channel.
2) wave beam according to the data and weighting coefficient after the corresponding final correction in each channel, after obtaining multichannel synthesis
Data.
Wherein, the corresponding weighting coefficient in different channels is identical or different.
In some embodiments, A, the initial same-phase address for calculating data in each depth in channel may include: according to logical
The depth of each data, the sampling rate of sample process, reception delay point increment x durection component, the direction reception delay point increment y in road
Component, channel x durection component, channel y durection component, the start position x durection component for synthesizing wave beam, the point of synthesis wave beam
Set y durection component, the corresponding sample rate of signal to be processed and the velocity of sound, with obtaining in channel in each depth the initial same-phase of data
Location.
For example, as shown in figure 4, the initial same-phase address of data is expressed as 52 in each depth in channel, it can be by such as
Lower formula obtains:
Wherein:
I indicates channel number；
Fs indicates the corresponding sample rate of signal to be processed (MHz)；
Vsound indicates the corresponding velocity of sound (m/s) of signal to be processed；
D indicates the depth of each data in channel, as shown in 54 in Fig. 4；
M indicates the sampling rate of sample process, as shown in 57 in Fig. 4；
Δ x indicates reception delay point increment x durection component, as shown in 55 in Fig. 4；
Δ y indicates reception delay point increment y durection component, as shown in 56 in Fig. 4；
Chx (i) indicates each channel x durection component, as shown in 51 in Fig. 4；
Chy (i) indicates each channel y durection component, as shown in 51 in Fig. 4；
Beamx indicates the start position x durection component of synthesis wave beam, as shown in 53 in Fig. 4；
Beamy indicates the start position y durection component of synthesis wave beam, as shown in 53 in Fig. 4；
Wave beam is synthesized as shown in 58 in Fig. 4.
B, according to initial same-phase address and frequency reducing frequency, the corresponding antiphase correction of data in each depth in Acquisition channel
Information, can be with specifically:
Wherein:
Indicate that antiphase corrects information；
N-1 indicates largest passages number；
F0 indicates frequency reducing frequency.
C, information is corrected according to antiphase, antiphase correction is carried out to the data after the corresponding interpolation in channel, it can be specific
Are as follows:
Z2_update (i, d)=[Real (i, d) * cos φ (i, d)-Img (i, d) * sin φ (i, d)]
+[Real(i,d)*sinφ(i,d)+Img(i,d)*cosφ(i,d)]*j
Wherein: Z2_update (i, d) indicates the data after antiphase correction；
Real (i, d) indicates the real part of the data after interpolation；
Img (i, d) indicates the imaginary part of the data after interpolation.
D, it according to the data after the fractional part of initial same-phase address and the correction of integer part and antiphase, obtains
Data after the corresponding final correction in channel, can be with specifically:
Z2_Fine (i, d)=Fine_Address (i, d) * Z2_update (i, Coarse_Address (i, d))+
(1-Fine_Address(i,d))*Z2_update(i,Coarse_Address(i,d
Wherein:
Coarse_Address (i, d) indicates the integer part of initial same-phase address:
Coarse_Address (i, d)=floor (Address_Inital (i, d))
Fine_Address (i, d) indicates the fractional part of initial same-phase address:
Fine_Address (i, d)=Address_Inital (i, d)-Coarse_Address (i, d)
Floor indicates downward round numbers；
Z2_Fine (i, d) indicates the data after the corresponding final correction of channel i.
2) wave beam according to the data and weighting coefficient after the corresponding final correction in each channel, after obtaining multichannel synthesis
Data, can be with specifically:
Wherein:
The weighting coefficient of Coef (i) expression channel i；
BF (d) indicates the beam data after multichannel synthesis；
Representation oeprator.
Above-mentioned steps obtain different channel digital signals according to same-phase address and add up, and obtain a certain in universe
The beam data of sampled point.The in-phase data of different sampled points in parallel processing Depth Domain, to be quickly obtained all in universe adopt
The beam data of sampling point.
In some embodiments, S102, hardware programmable logical device carry out the sparse processing of signal to the signal to be processed,
And by treated, data are transferred to the processor, may include: that hardware programmable logical device carries out signal to be processed
The sparse processing of signal obtains sparse data；Hardware programmable logical device carries out universe multichannel caching to sparse data, obtains
Universe multi-channel data；Hardware programmable logical device is transferred to processor by universe multi-channel data, through internal bus.Its
In, the multichannel buffer area that sparse data carries out universe multichannel caching is pre-set, as shown in Figure 5.
With reference to Fig. 6, the whole flow process that medical supersonic equipment carries out Beam synthesis is shown.Specifically, medical supersonic equipment
Energy converter to detected body emit ultrasonic signal, be reflected back when the ultrasonic signal encounters detected body, formed echo
Signal is received by energy converter.Later, echo-signal is passed to amplifier by energy converter, carries out Simulation scale-up processing by amplifier.
Further, amplified signal is passed to ADC by amplifier, carries out digital sample processing by ADC, and will be after sampling processing
Signal passes to hardware programmable logical device by High Speed Serial, and it is gentle to carry out sparse processing by hardware programmable logical device
It deposits, wherein sparse processing includes but is not limited to down conversion process, low-pass filtering treatment and sample process.Next, hardware programmable
Sparse treated data are passed to processor by internal bus by logical device, are carried out Beam synthesis by processor: being calculated
In phase location -> single-point (sampled point) Beam synthesis -> universe Beam synthesis.
Following is apparatus of the present invention embodiment, can be used for executing embodiment of the present invention method.For apparatus of the present invention reality
Undisclosed details in example is applied, embodiment of the present invention method is please referred to.
Fig. 7 is the structural schematic diagram for the medical supersonic equipment that one embodiment of the invention provides.As shown in fig. 7, the present embodiment
There is provided a kind of medical supersonic equipment 70, comprising: obtain module 71, first processing module 72 and Second processing module 73.Wherein,
Module 71 is obtained, for obtaining signal to be processed.The signal to be processed is medical supersonic equipment 70 to receiving
Echo-signal carries out pretreated signal.
First processing module 72, for carrying out the sparse processing of signal to signal to be processed, and data are transmitted by treated
To Second processing module 73.
Second processing module 73 for carrying out interpolation processing to the data received, and carries out wave to the data after interpolation
Shu Hecheng.
Device provided in an embodiment of the present invention can execute technical solution shown in above method embodiment, realization principle
And beneficial effect is similar, is no longer repeated herein.
Optionally, first processing module 72 can be specifically used for: carrying out down conversion process to signal to be processed, obtain frequency reducing letter in reply
Number；Low-pass filtering treatment is carried out to frequency reducing complex signal, obtains low frequency signal；And processing is sampled to low frequency signal, it obtains
Treated the data.Optionally, the sampling rate of sample process is determined according to the closeness of pending data.
In some embodiments, Second processing module 73 can be specifically used for: the sampling rate based on sample process, to what is received
Data carry out interpolation processing.
Further, Second processing module 73, can when carrying out Beam synthesis to the data after interpolation specifically: for every
Data after the corresponding interpolation in a channel, carry out the following processing:
Calculate the initial same-phase address of data in each depth in channel；
According to initial same-phase address and frequency reducing frequency, the corresponding antiphase correction letter of data in each depth in Acquisition channel
Breath, frequency reducing frequency are the corresponding frequency of down conversion process；
Information is corrected according to antiphase, antiphase correction is carried out to the data after the corresponding interpolation in channel；
According to the data after the fractional part of initial same-phase address and the correction of integer part and antiphase, obtain logical
Data after the corresponding final correction in road；
Later, according to the data and weighting coefficient after the corresponding final correction in each channel, after obtaining multichannel synthesis
Beam data.Wherein, the corresponding weighting coefficient in different channels is identical or different.
Optionally, Second processing module 73 is in calculating channel in each depth when the initial same-phase address of data, specifically
For: according to the depth of data each in channel, the sampling rate of the sample process, reception delay point increment x durection component, receive
Delay point an increment y durection component, channel x durection component, channel y durection component, synthesize wave beam start position x durection component,
The start position y durection component, the corresponding sample rate of the signal to be processed and the velocity of sound for synthesizing wave beam, obtain each depth in channel
The initial same-phase address of upper data.
Further, first processing module 72 can be specifically used for: carrying out the sparse processing of signal to signal to be processed, obtain dilute
Dredge data；Universe multichannel caching is carried out to sparse data, obtains universe multi-channel data；By universe multi-channel data, through interior
Portion's bus transfer is to processor.
Optionally, medical supersonic equipment 70 can also include amplification module (not shown) and sampling module (not shown).Its
In:
Amplification module carries out Simulation scale-up processing to for echo-signal.
Sampling module, for carrying out digital sample processing to the signal after enhanced processing, and by the signal after sampling processing
It is passed to through High Speed Serial and obtains module 71.
Still referring to FIG. 6, the present embodiment provides a kind of medical supersonic equipment, comprising: hardware programmable logical device and processing
Device.Wherein,
Hardware programmable logical device, for carrying out the sparse processing of signal to the signal to be processed of acquisition, and will be after processing
Data be transferred to processor, it is pretreated which is that the echo-signal that receives of medical supersonic equipment interconnection carries out
Signal.
Processor for carrying out interpolation processing to the data received, and carries out Beam synthesis to the data after interpolation.
Specific execute can refer to any of the above-described embodiment of the method, and details are not described herein again.
The embodiment of the present invention provides a kind of readable storage medium storing program for executing, which is stored with computer program, meter
The step of processor executes in the method as described in above-mentioned any embodiment is realized when calculation machine program is executed by processor.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the embodiment of the present invention, rather than to it
Limitation；Although the embodiment of the present invention is described in detail referring to foregoing embodiments, those skilled in the art
It is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, either to part of or
All technical features are equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution this hair
The range of bright example scheme.
Claims (10)
1. a kind of beam synthesizing method, which is characterized in that be applied to medical supersonic equipment, the medical supersonic equipment includes hardware
Programmable logic device and processor, which comprises
The hardware programmable logical device obtains signal to be processed, and the signal to be processed is the medical supersonic equipment interconnection
The echo-signal received carries out pretreated signal；
The hardware programmable logical device carries out the sparse processing of signal to the signal to be processed, and data pass by treated
It is defeated by the processor；
The processor carries out interpolation processing to the data received, and carries out Beam synthesis to the data after interpolation.
2. the method according to claim 1, wherein the hardware programmable logical device is to the letter to be processed
Number carry out the sparse processing of signal, comprising:
The hardware programmable logical device carries out down conversion process to the signal to be processed, obtains frequency reducing complex signal；
The hardware programmable logical device carries out low-pass filtering treatment to the frequency reducing complex signal, obtains low frequency signal；
The hardware programmable logical device is sampled processing to the low frequency signal, obtains treated the data.
3. according to the method described in claim 2, it is characterized in that, the sampling rate of the sample process is according to described to be processed
What the closeness of data determined.
4. according to the method described in claim 2, it is characterized in that, the processor carries out at interpolation the data received
Reason, comprising:
Sampling rate of the processor based on the sample process carries out interpolation processing to the data received.
5. according to the method described in claim 2, it is characterized in that, the processor carries out wave beam conjunction to the data after interpolation
At, comprising:
For the data after the corresponding interpolation in each channel, the processor is carried out the following processing:
Calculate the initial same-phase address of data in each depth in channel；
According to the initial same-phase address and frequency reducing frequency, the corresponding antiphase correction letter of data in each depth in Acquisition channel
Breath, the frequency reducing frequency are the corresponding frequency of the down conversion process；
Information is corrected according to the antiphase, antiphase correction is carried out to the data after the corresponding interpolation in channel；
According to the data after the fractional part of the initial same-phase address and the correction of integer part and antiphase, obtain logical
Data after the corresponding final correction in road；
According to the data and weighting coefficient after the corresponding final correction in each channel, the beam data after multichannel synthesizes is obtained,
Wherein, the corresponding weighting coefficient in different channels is identical or different.
6. according to the method described in claim 5, it is characterized in that, the initial same phase for calculating data in each depth in channel
Bit address, comprising:
According to the depth (d) of data each in channel, the sampling rate (M) of the sample process, the direction minute reception delay point increment x
Amount, reception delay point increment y durection component, channel x durection component, channel y durection component, the start position side x for synthesizing wave beam
To component, the start position y durection component, the corresponding sample rate of the signal to be processed and the velocity of sound that synthesize wave beam, obtain channel
In in each depth data initial same-phase address.
7. the method according to claim 1, wherein the hardware programmable logical device is to the letter to be processed
Number carry out the sparse processing of signal, and will treated that data are transferred to the processor, comprising:
The hardware programmable logical device carries out the sparse processing of signal to the signal to be processed, obtains sparse data；
The hardware programmable logical device carries out universe multichannel caching to the sparse data, obtains universe multichannel number
According to；
The hardware programmable logical device is transferred to the processor by the universe multi-channel data, through internal bus.
8. method according to any one of claim 1 to 7, which is characterized in that the medical supersonic equipment further includes putting
Big device and sampler, the hardware programmable logical device obtain signal to be processed, comprising:
The hardware programmable logical device obtains the signal to be processed of sampler output through High Speed Serial, it is described to
Processing signal is the signal that the echo-signal successively obtains after the amplifier and the sampler.
9. a kind of medical supersonic equipment characterized by comprising
Module is obtained, for obtaining signal to be processed, the signal to be processed is time that the medical supersonic equipment interconnection receives
Wave signal carries out pretreated signal；
First processing module, for carrying out the sparse processing of signal to the signal to be processed, and data are transferred to by treated
Second processing module；
The Second processing module for carrying out interpolation processing to the data received, and carries out wave beam to the data after interpolation
Synthesis.
10. a kind of medical supersonic equipment characterized by comprising
Hardware programmable logical device, for carrying out the sparse processing of signal to the signal to be processed of acquisition, and will treated number
According to processor is transferred to, the signal to be processed is after the echo-signal that the medical supersonic equipment interconnection receives is pre-processed
Signal；
The processor for carrying out interpolation processing to the data received, and carries out Beam synthesis to the data after interpolation.
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