CN206930923U - A kind of high frequency ultrasound equipment and radio frequency signal processing equipment - Google Patents
A kind of high frequency ultrasound equipment and radio frequency signal processing equipment Download PDFInfo
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- CN206930923U CN206930923U CN201720373704.2U CN201720373704U CN206930923U CN 206930923 U CN206930923 U CN 206930923U CN 201720373704 U CN201720373704 U CN 201720373704U CN 206930923 U CN206930923 U CN 206930923U
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Abstract
The utility model discloses the high frequency analog-digital converter of a kind of radio frequency signal processing equipment for high frequency ultrasound equipment, including the echo-signal for receiving high-frequency ultrasonic；It is being connected with high frequency analog-digital converter, handle to obtain data signal for carrying out the echo-signal that receives rf digital signal, and video signal conversion process is carried out to data signal, obtains the digital processing unit of vision signal；It is being connected with digital processing unit, for vision signal to be exported to general purpose I/O Interface of subsequent conditioning circuit.The echo-signal that the utility model directly gathers high-frequency ultrasonic carries out Digital Signal Processing, avoids radio frequency features information in digital signal processing from losing, ensures the normal realization of digital signal processing in high frequency ultrasound equipment.The invention also discloses a kind of high frequency ultrasound equipment including above-mentioned radio frequency signal processing equipment.
Description
Technical field
High frequency ultrasound technical field is the utility model is related to, is believed more particularly to a kind of radio frequency for high frequency ultrasound equipment
Number processing unit.The utility model further relates to a kind of high frequency ultrasound equipment.
Background technology
Digital RF process circuit is typically not provided with current ultrasonic device, but by analog circuit to high-frequency ultrasonic
The echo-signal (signal being reflected back) of (high-frequency ultrasonic generally refers to ultrasound of the frequency in more than 20MHz) is put
Greatly, after the processing such as analog filtering, amplitude detection and log-compressed, obtain vision signal and carry out digital collection again.
But the HFS in echo-signal can be filtered out to echo-signal progress LPF due to analog circuit, and
Phase information can be lost after amplitude detection, introduces non-linear factor again after log-compressed, therefore cause finally to collect
The many radio frequency parts of loss of data characteristic information, and then lead to not carry out corresponding digital processing to the data that collect
Operation.
Therefore, how a kind of high frequency ultrasound for ensureing the integrality of radio frequency features information in digital signal processing is provided
Equipment and radio frequency signal processing equipment are that those skilled in the art need to solve the problems, such as at present.
Utility model content
The purpose of this utility model is to provide a kind of radio frequency signal processing equipment for high frequency ultrasound equipment, directly gathers
The echo-signal of high-frequency ultrasonic carries out Digital Signal Processing, avoids radio frequency features information in digital signal processing from losing,
Ensure the normal realization of digital signal processing in high frequency ultrasound equipment.Another object of the present utility model is to provide a kind of bag
Include the high frequency ultrasound equipment of above-mentioned radio frequency signal processing equipment.
Handled in order to solve the above technical problems, the utility model provides a kind of radiofrequency signal for high frequency ultrasound equipment
Device, including：
For the high frequency analog-digital converter for the echo-signal for receiving high-frequency ultrasonic；
It is being connected with the high frequency analog-digital converter, for carrying out rf digital signal to the echo-signal that receives
Processing obtains data signal, and carries out video signal conversion process to the data signal, obtains the digital processing of vision signal
Device；
It is being connected with the digital processing unit, for the vision signal to be exported to general purpose I/O Interface of subsequent conditioning circuit.
Preferably, the digital processing unit is specially FPGA.
Preferably, in addition to：
The first digital analog converter being connected respectively with the digital processing unit and time gain compensation amplifier TGC；
Data for being sent to first digital analog converter carry out the time of time gain compensation amplifieroperation
Gain compensation amplifier.
Preferably, in addition to：
The second digital analog converter being connected respectively with the digital processing unit and oscillograph.
Preferably, in addition to：
Several memories being connected respectively with the digital processing unit.
Preferably, the memory is specially SSRAM.
Preferably, in addition to：
The USB interface being connected with the digital processing unit.
In order to solve the above technical problems, the utility model additionally provides a kind of high frequency ultrasound equipment, including such as any of the above
Radio frequency signal processing equipment described in.
The utility model provides a kind of radio frequency signal processing equipment for high frequency ultrasound equipment, including high frequency modulus turns
Parallel operation, digital processing unit and general purpose I/O Interface.High frequency analog-digital converter is transferred to digital place after directly gathering echo-signal
Manage device and carry out Digital Signal Processing, i.e., LPF is not carried out to echo-signal before Digital Signal Processing or video is believed
Number conversion etc. processing, ensure that the integrality of radio frequency features information in the echo-signal that digital processing unit receives, also ensure that
The normal realization of digital signal processing in high frequency ultrasound equipment.The utility model additionally provides a kind of including above-mentioned radio frequency letter
The high frequency ultrasound equipment of number processing unit.
Brief description of the drawings
, below will be to prior art and embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of structural representation of radio frequency signal processing equipment for high frequency ultrasound equipment provided by the utility model
Figure.
Embodiment
Core of the present utility model is to provide a kind of radio frequency signal processing equipment for high frequency ultrasound equipment, directly gathers
The echo-signal of high-frequency ultrasonic carries out Digital Signal Processing, avoids radio frequency features information in digital signal processing from losing,
Ensure the normal realization of digital signal processing in high frequency ultrasound equipment.Another core of the present utility model is to provide a kind of bag
Include the high frequency ultrasound equipment of above-mentioned radio frequency signal processing equipment.
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
The utility model provides a kind of radio frequency signal processing equipment for high frequency ultrasound equipment, including：
For the high frequency analog-digital converter 1 for the echo-signal for receiving high-frequency ultrasonic；
It is being connected with high frequency analog-digital converter 1, handled for carrying out rf digital signal to the echo-signal that receives
Video signal conversion process is carried out to data signal, and to data signal, obtains the digital processing unit 2 of vision signal；
Wherein, after digital processing unit 2 receives echo-signal, baseband conversion is carried out to echo-signal, then reduces by 4 times
Sample frequency, then carries out follow-up rf digital signal processing again, and follow-up rf digital signal processing is carried out based on baseband signal.
It is understood that because the data volume of echo-signal is very big, pass through the behaviour of baseband conversion and reduction sample frequency
Make, can effectively reduce data volume, improve operation efficiency.
In addition, video signal conversion process here refers to amplitude detection and log-compressed.Also, digital processing unit 2
Interior specific procedure can be customized and change according to being actually needed, and the utility model is not particularly limited to this.
It is being connected with digital processing unit 2, for vision signal to be exported to general purpose I/O Interface 3 of subsequent conditioning circuit
(General Purpose Input Output, GPIO).
Wherein, the characteristics of there is broadband character and Larger Dynamic scope due to high frequency ultrasound echoes signal, therefore high frequency surpasses
The collection of sound echo-signal needs the analog-digital converter of high frequency (20M~250MHz), high-resolution (more than 12) to realize.Specifically
, high frequency analog-digital converter 1 can be 250MHz/14bits, and certainly, the utility model does not limit high frequency analog-digital converter 1
Concrete model.
Also, because the data volume of high frequency ultrasound echoes signal is very big, therefore, in order to realize that the numeral to echo-signal is believed
Number processing using the big high speed circuit of operand, it is necessary to be realized；Preferably, digital processing unit 2 is specially FPGA
(Field-Programmable Gate Array, field programmable gate array), concrete model can be 5CEFA7F31C8N/
480IO, it is of course also possible to use other kinds of digital processing unit 2, as long as it can realize above-mentioned processing function.
Preferably, the device also includes：
Respectively with digital processing unit 2 and time gain compensation amplifier 5TGC (time gain compensation) even
The first digital analog converter 4 connect；
Data for being sent to the first digital analog converter 4 carry out the time gain compensation of time gain compensation amplifieroperation
Amplifier 5.
It is understood that due to the echo signal of ultrasound emission, can gradually decay with the increase of distance, and the time increases
Benefit compensation is a kind of mode that different degrees of compensation is carried out according to attenuation degree, have in ultrasonic instrument slope-compensation control and
Segmented compensation controls two kinds, can compensate in 0~60dB scopes, to reach the requirement of deamplification compensation.
Preferably, the device also includes：
The second digital analog converter 6 being connected respectively with digital processing unit 2 and oscillograph.
Wherein, the first digital analog converter 4 can use 125MHz/8bit model, and the second digital analog converter 6 can use
275MHz/12bit model, it is to be understood that the first digital analog converter 4 is connected with time gain compensation amplifier 5, is not required to
Too high sample rate is wanted, therefore cost can be reduced using the relatively low model of sample rate.Certainly, the utility model does not limit two numbers
The concrete model of weighted-voltage D/A converter.
Preferably, the device also includes：
Several memories 7 being connected respectively with digital processing unit 2.Wherein, memory 7 is specially SSRAM
(Synchronous Static Random Access Memory, synchronous static RAM).Of memory 7
Number can be 4.The SSRAM that switching rate is 72Mb for 250Msps, capacity can be used, certainly, the utility model to this not
Make specific limit.
It is understood that every RAM has special purpose interface to be connected with FPGA, information can be simultaneously in 4 RAM and FPGA
Between handle up, it is achieved thereby that the real-time processing of radio-frequency chart picture.Certainly, memory 7 here specifically uses which type of RAM sheets
Utility model is not construed as limiting, in addition, the number the utility model for the memory 7 that the device includes also is not specifically limited.
Preferably, the device also includes：
The USB interface 8 being connected with digital processing unit 2.
It should be noted that above-described first digital analog converter 4 and time gain compensation amplifier 5, the second digital-to-analogue
Converter 6, several memories 7 and USB interface 8 can be combined according to actual conditions, combine obtained embodiment
Within the scope of protection of the utility model.
In addition, above-described high frequency analog-digital converter 1, general purpose I/O Interface 3, the first digital analog converter 4, the second digital-to-analogue
It is to be bi-directionally connected between converter 6, several memories 7 and USB interface 8 and digital processing unit 2, i.e. progress can carry out double
To transmission, to meet corresponding needs.
In addition, to meet application demand, device of the present utility model may also include other and be connect with what digital processing unit 2 was connected
Mouthful, the utility model is not especially limited to this.
Shown in Figure 1, Fig. 1 is that a kind of radiofrequency signal for high frequency ultrasound equipment provided by the utility model handles dress
The structural representation put.
Certainly, the utility model also includes being used to integrate above-mentioned high frequency analog-digital converter 1, digital processing unit 2, general purpose I/O
Interface 3, the first digital analog converter 4, the second digital analog converter 6, the substrate and electricity of several memories 7 and USB interface 8
Source.
The utility model provides a kind of radio frequency signal processing equipment for high frequency ultrasound equipment, including high frequency modulus turns
Parallel operation, digital processing unit and general purpose I/O Interface.High frequency analog-digital converter is transferred to digital place after directly gathering echo-signal
Manage device and carry out Digital Signal Processing, i.e., LPF is not carried out to echo-signal before Digital Signal Processing or video is believed
Number conversion etc. processing, ensure that the integrality of radio frequency features information in the echo-signal that digital processing unit receives, also ensure that
The normal realization of digital signal processing in high frequency ultrasound equipment.
The utility model additionally provides a kind of high frequency ultrasound equipment, including above radio frequency signal processing equipment.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (8)
- A kind of 1. radio frequency signal processing equipment for high frequency ultrasound equipment, it is characterised in that including：For the high frequency analog-digital converter for the echo-signal for receiving high-frequency ultrasonic；It is being connected with the high frequency analog-digital converter, for carrying out rf digital signal processing to the echo-signal that receives Data signal is obtained, and video signal conversion process is carried out to the data signal, obtains the digital processing unit of vision signal；It is being connected with the digital processing unit, for the vision signal to be exported to general purpose I/O Interface of subsequent conditioning circuit.
- 2. device according to claim 1, it is characterised in that the digital processing unit is specially FPGA.
- 3. device according to claim 2, it is characterised in that also include：The first digital analog converter being connected respectively with the digital processing unit and time gain compensation amplifier TGC；Data for being sent to first digital analog converter carry out the time gain of time gain compensation amplifieroperation Compensate amplifier.
- 4. device according to claim 3, it is characterised in that also include：The second digital analog converter being connected respectively with the digital processing unit and oscillograph.
- 5. device according to claim 4, it is characterised in that also include：Several memories being connected respectively with the digital processing unit.
- 6. device according to claim 5, it is characterised in that the memory is specially SSRAM.
- 7. device according to claim 6, it is characterised in that also include：The USB interface being connected with the digital processing unit.
- 8. a kind of high frequency ultrasound equipment, it is characterised in that handle dress including the radiofrequency signal as described in claim any one of 1-7 Put.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720373704.2U CN206930923U (en) | 2017-04-11 | 2017-04-11 | A kind of high frequency ultrasound equipment and radio frequency signal processing equipment |
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|---|---|---|---|
| CN201720373704.2U CN206930923U (en) | 2017-04-11 | 2017-04-11 | A kind of high frequency ultrasound equipment and radio frequency signal processing equipment |
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| CN206930923U true CN206930923U (en) | 2018-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106919111A (en) * | 2017-04-11 | 2017-07-04 | 上海瑞影医疗科技有限公司 | A kind of high frequency ultrasound equipment and radio frequency signal processing equipment |
-
2017
- 2017-04-11 CN CN201720373704.2U patent/CN206930923U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106919111A (en) * | 2017-04-11 | 2017-07-04 | 上海瑞影医疗科技有限公司 | A kind of high frequency ultrasound equipment and radio frequency signal processing equipment |
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