CN110071706A - Core pulse signal rising edge restoration methods, device and digitlization nuclear instrument - Google Patents
Core pulse signal rising edge restoration methods, device and digitlization nuclear instrument Download PDFInfo
- Publication number
- CN110071706A CN110071706A CN201910370049.9A CN201910370049A CN110071706A CN 110071706 A CN110071706 A CN 110071706A CN 201910370049 A CN201910370049 A CN 201910370049A CN 110071706 A CN110071706 A CN 110071706A
- Authority
- CN
- China
- Prior art keywords
- pulse signal
- core pulse
- processed
- signal
- rising edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0211—Frequency selective networks using specific transformation algorithms, e.g. WALSH functions, Fermat transforms, Mersenne transforms, polynomial transforms, Hilbert transforms
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
Landscapes
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Analysis (AREA)
- Computing Systems (AREA)
- General Physics & Mathematics (AREA)
- Algebra (AREA)
- Mathematical Optimization (AREA)
- Nonlinear Science (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Measurement Of Radiation (AREA)
- Nuclear Medicine (AREA)
Abstract
The invention relates to signal processing technology field, a kind of core pulse signal rising edge restoration methods, device and digitlization nuclear instrument are provided.The described method includes: obtaining core pulse signal to be processed, the signal to be processed has certain rising edge；For the core pulse signal to be processed, restores the rising edge of the core pulse signal to be processed, obtain corresponding recovery signal；Processing is formed to the recovery signal.By doing forming processing to core pulse signal to be processed progress rising edge recovery, then to recovery signal, the amplitude loss problem of the nuclear signal after improving forming.
Description
Technical field
This application involves signal processing technology field, in particular to a kind of core pulse signal rising edge restoration methods,
Device and digitlization nuclear instrument.
Background technique
Accurate nuclear information is obtained in nuclear science technology, generally required electronically to nuclear detector output
Signal is handled, wherein Digital Signal Processing advances in digitlization nuclear instrument in the extensive use of core fields of measurement
Development, greatly improve the accuracy and flexibility of nuclear spectrum measurement.
Compared with simulating nuclear instrument, it is current that digitlization nuclear instrument, which has better stability, anti-interference and fidelity,
The hot spot of research.And energy and the good nuclear spectrum of time resolution in order to obtain, it is necessary to which filter appropriate is carried out to digital nuclear signal
The processing such as wave forming, it has been investigated that, nuclear instrument is digitized after handling core pulse signal, obtained energy spectrum diagram energy resolution
Have to be hoisted.
Summary of the invention
The application provides a kind of core pulse signal rising edge restoration methods, device and digitlization nuclear instrument.
The embodiment of the present application provides a kind of core pulse signal rising edge restoration methods, is applied to digitlization nuclear instrument, described
Method includes:
Obtain core pulse signal to be processed；
For the core pulse signal to be processed, restores the rising edge of the core pulse signal to be processed, obtain corresponding
Restore signal；
Processing is formed to the recovery signal.
Further, the rising edge for restoring the core pulse signal to be processed obtains the corresponding step for restoring signal
Suddenly include:
In the Restoration model that the core pulse signal input to be processed is pre-established；
Restored by rising edge of the Restoration model to the core pulse signal to be processed, obtains corresponding recovery
Signal；
The Restoration model are as follows:
Wherein, x [n] is the core pulse signal to be processed,TsFor the digitlization core
The sampling time interval of instrument, τ are the slow time parameter of the core pulse signal to be processed, i.e. failing edge part, θ be it is described to
Handle the fast time parameter of core pulse signal, i.e. leading edge portion.
Further, the digitlization nuclear instrument includes differential circuit and analog-to-digital conversion module, described to pass through the recovery
The step of model restores the rising edge of the core pulse signal to be processed, obtains corresponding recovery signal include:
Obtain core pulse signal to be processed, wherein the core pulse signal to be processed is two fingers number core pulse signal；
The Double exponential pulse signal is converted into Double exponential pulse sequence by the analog-to-digital conversion module；
Restored by rising edge of the Restoration model to the Double exponential pulse sequence, obtains corresponding recovery letter
Number.
Further, the method also includes constructing the Restoration model, the step includes:
Core pulse signal biexponential model x [n] is established,Wherein, A is described
The amplitude of core pulse signal to be processed, TsFor the sampling time interval of the digitlization nuclear instrument, τ is the core pulse to be processed
The slow time parameter of signal, i.e. failing edge part, θ are the fast time parameter of the core pulse signal to be processed, i.e. rising edge portion
Point；
It establishes and restores signal Single-Index Model y [n],
Transform is done to the core pulse signal biexponential model and obtains X [z]:
Transform is done to the recovery signal Single-Index Model and obtains Y [z]:
Wherein,
Corresponding system function is obtained according to the X [z] and Y [z], and it is extensive to do Z anti transform acquisition to the system function
Multiple model.
Further, the system function is calculated by the following formula to obtain:
The embodiment of the present application also provides a kind of core pulse signal rising edge recovery device, is applied to digitlization nuclear instrument, institute
Stating device includes:
Module is obtained, for obtaining core pulse signal to be processed；
Recovery module is used for the core pulse signal to be processed, restores the rising edge of the core pulse signal to be processed, obtains
To corresponding recovery signal；
Shaping module, for processing to be formed to the recovery signal.
Further, the recovery module includes: extensive for pre-establishing the core pulse signal input to be processed
In multiple model；
It is also used to restore by rising edge of the Restoration model to the core pulse signal to be processed, be corresponded to
Recovery signal；
The Restoration model are as follows:
Wherein, x [n] is the core pulse signal to be processed,TsFor the digitlization core instrument
The sampling time interval of device, τ are the slow time parameter of the core pulse signal to be processed, i.e. failing edge part, and θ is described wait locate
Manage the fast time parameter of core pulse signal, i.e. leading edge portion.
Further, described device further include:
Model building module, for establishing core pulse signal biexponential model x [n], Wherein, A is the amplitude of the core pulse signal to be processed, TsFor the sampling of the digitlization nuclear instrument
Time interval, τ are the slow time parameter of the core pulse signal to be processed, i.e. failing edge part, and θ is the core pulse to be processed
The fast time parameter of signal, i.e. leading edge portion；
It establishes and restores signal Single-Index Model y [n],
Transform is done to the core pulse signal biexponential model and obtains X [z]:
Transform is done to the recovery signal Single-Index Model and obtains Y [z]:
Wherein,
Corresponding system function is obtained according to the X [z] and Y [z], and it is extensive to do Z anti transform acquisition to the system function
Multiple model.
Further, the model building module is for being calculated by the following formula to obtain system function:
The embodiment of the present application also provides a kind of digitlization nuclear instrument, comprising: processor, memory and bus, the storage
Device is stored with the executable machine readable instructions of the processor, when digitizing nuclear instrument operation, the processor and described
By bus communication between memory, the processor executes the machine readable instructions, to execute above-mentioned core pulse signal
The step of rising edge restoration methods.
The embodiment of the present application provides a kind of core pulse signal rising edge restoration methods, device and digitlization nuclear instrument.It is logical
Cross there are the core pulse signal to be processed of rising edge carry out rising edge recovery be restored signal and then to restore signal be made into
Shape processing, the amplitude loss problem of the nuclear signal after improving forming, so that energy spectrum diagram energy resolution gets a promotion.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is two fingers number core pulse signal provided by the embodiments of the present application.
Fig. 2 is provided by the embodiments of the present application to be believed by two fingers number core pulse signal forming treated shaped pulse in Fig. 1
Number figure.
Fig. 3 is the structural block diagram of digitlization nuclear instrument provided by the embodiments of the present application.
Fig. 4 is the flow chart of core pulse signal rising edge restoration methods provided by the embodiments of the present application.
Fig. 5 is the recovery signal provided by the embodiments of the present application for restoring to obtain after rising edge and the two fingers for not restoring rising edge
Rapid pulse rushes signal contrast figure.
Fig. 6 is the trapezoidal pulse signal graph after the signal progress trapezoidal pulse forming provided by the embodiments of the present application to recovery.
Fig. 7 is the functional block diagram of core pulse signal rising edge recovery device provided by the embodiments of the present application.
Icon: 100- digitizes nuclear instrument；110- core pulse signal rising edge recovery device；111- obtains module；112-
Recovery module；113- shaping module；120- processor；130- memory.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Ground description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Usually exist
The component of the embodiment of the present application described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on embodiments herein, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
The acquisition of core pulse signal generallys use the nuclear radiation detector in digitlization nuclear instrument, the measurement of core pulse signal
Generally use nuclear electronics measuring system.Core pulse signal is respectively completed based on nuclear radiation detector and nuclear electronics measuring system
Analog signal obtain and processing, analog-to-digital conversion and data processing.Through applicants have found that, nuclear radiation detector obtain
Core pulse signal is generally shaped as exponential damping type core pulse signal, then believes in FPGA the exponential damping type core pulse
Number do forming processing.But it is to be hoisted to there is a problem of that energy spectrum diagram energy resolution has.
In the prior art, the method for improving digitlization nuclear instrument precision, Lai Gaishan energy spectrum diagram energy resolution are generallyd use
There are problems that loss, typically cost is higher.It is found through test of many times, improves collected signal in digitlization nuclear instrument, i.e.,
Energy spectrum diagram energy resolution problem to be improved can further be improved.
Specifically, as shown in Figures 1 and 2, two fingers number core pulse letter is shaped as with the core pulse signal that detector obtains
For number, Fig. 1 is Double exponential pulse signal, and Fig. 2 is obtained shaped pulse after processing is formed to Double exponential pulse signal
Signal.Wherein, horizontal axis is the time of signal, and unit can be μ s (microsecond), and the longitudinal axis is the amplitude of signal, and unit can be V (volt
It is special) (being not shown in the figure, in use, determining the unit and the unit of time of amplitude according to the actual situation).The lower song of peak value
Line is Double exponential pulse signal, and the higher curve of peak value is according to the shaped pulse signal after this Double exponential pulse signal shaping.
As shown in Figure 2, after processing being formed to Double exponential pulse signal, there is offset in the flat-top of obtained shaped pulse signal,
There is loss in amplitude, in turn result in the loss of energy spectrum diagram energy resolution.
In view of the above-mentioned problems, the embodiment of the present application proposes that a kind of core pulse signal that rising edge will be present first passes through recovery and calculates
Method restores its rising edge, the core pulse signal after being restored, then again to the core pulse signal after the recovery carry out pulse at
Shape, so that the technical solution that obtained shaped pulse is without loss in amplitude.
Referring to Fig. 3, the embodiment of the present application, which is based on the studies above discovery, provides a kind of digitlization nuclear instrument 100, it is described
Digitizing nuclear instrument 100 includes memory 130, processor 120 and core pulse signal rising edge recovery device 110.
It is directly or indirectly electrically connected between the memory 130 and processor 120, to realize the transmission or friendship of data
Mutually.It is electrically connected for example, these elements can be realized between each other by one or more communication bus or signal wire.The core arteries and veins
Rushing signal rising edge recovery device 110 includes that at least one can be stored in described deposit in the form of software or firmware (firmware)
Software function module in reservoir 130.The processor 120 by execute stored in the memory 130 it is executable based on
Calculation machine program, for example, software function module and computer program included by the core pulse signal rising edge recovery device 110
Deng to realize core pulse signal rising edge restoration methods.
Wherein, the memory 130 may be, but not limited to, random access memory (Random Access
Memory, RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable
Read-Only Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only
Memory, EPROM), electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only
Memory, EEPROM) etc..Wherein, memory 130 is for storing program, the processor 120 after receiving and executing instruction,
Execute described program.
The processor 120 may be a kind of IC chip, the processing capacity with signal.Above-mentioned processor
120 can be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit
(Network Processor, NP) etc.；It can also be digital signal processor (DSP), specific integrated circuit (ASIC), scene
Programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware group
Part.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present application.General processor can be with
It is that microprocessor or the processor 120 are also possible to any conventional processor etc..
It is appreciated that structure shown in Fig. 3 is only to illustrate, the digitlization nuclear instrument 100 may also include than shown in Fig. 3
More perhaps less component or with the configuration different from shown in Fig. 3.Each component shown in Fig. 3 can using hardware,
Software or combinations thereof is realized.
For example, the digitlization nuclear instrument 100 can also include differential circuit and analog-to-digital conversion module.
Core pulse signal to be processed is converted to Double exponential pulse letter for receiving signal to be processed by the differential circuit
Number.In the present embodiment, existing common differential circuit can be used in the differential circuit, and specific circuit structure diagram is in this reality
It applies in example and does not repeat.
The analog-to-digital conversion module is converted to the Double exponential pulse double for receiving the Double exponential pulse signal
Exponential pulse sequence.Meanwhile the analog-to-digital conversion module can be ADS129x, ADS5296A, TLC7135 or TLC0831 etc..
With reference to Fig. 4, the embodiment of the present application also provides a kind of core pulse that can be applied to above-mentioned digitlization nuclear instrument 100
Signal rising edge restoration methods, method can be realized by step S1 to step S3.Wherein, the related process of the method is determined
The method and step of justice can be realized by the processor 120.Detailed process shown in Fig. 4 will be described in detail below.
S1 obtains core pulse signal to be processed.
In the present embodiment, the core pulse signal to be processed can be obtained by the detector in the digitlization nuclear instrument 100
, optionally, the detector can be FAST-SDD detector or NaI (T1) detector.Concrete model can be selected as needed
It selects, it is not limited here.
S2 restores the rising edge of the core pulse signal to be processed, is corresponded to for the core pulse signal to be processed
Recovery signal.
In the embodiment of the present application, the core pulse signal to be processed first can be inputted into the Restoration model pre-established
In.Restored again by rising edge of the Restoration model to the core pulse signal to be processed, obtains corresponding recovery letter
Number.
In one embodiment, when being restored using the Restoration model to the core pulse signal to be processed,
Can first pass through it is described digitlization nuclear instrument 100 in differential circuit and analog-to-digital conversion module to the core pulse signal to be processed into
Digitized processing.To digitlization, treated that signal restores again later.It is understood that the mode of digitized processing
It is not limited only to mode mentioned by the application.
In the embodiment of the present application, the core pulse signal to be processed is converted into Double exponential pulse signal, and as
Example, elaborates.It is understood that the core pulse signal to be processed can also be converted into other exponential damping types letter
Number.
Specifically, core pulse signal to be processed is obtained, since detector has certain charge collection time, so that output
Signal has certain rising edge, and detector output signal is slowed down by failing edge after the differential circuit, so that core to be processed
Pulse signal is Double exponential pulse signal.
It is (i.e. discrete that the Double exponential pulse signal is converted into Double exponential pulse sequence by the analog-to-digital conversion module
Double exponential pulse signal).It is understood that the sampling time interval of the analog-to-digital conversion module can be according to sampling thheorem and reality
The setting of border demand.
The Restoration model restores the rising edge of the Double exponential pulse sequence, obtains corresponding recovery signal.
In one embodiment, the Restoration model can be with are as follows:
Wherein, x [n] is the core pulse signal (i.e. Double exponential pulse sequence) to be processed,
TsFor the sampling time interval (sampling time interval of the i.e. described analog-to-digital conversion module) of the digitlization nuclear instrument 100, τ is institute
The slow time parameter of core pulse signal to be processed is stated, i.e., (its value is the resistance value and capacitor of resistance in differential circuit for failing edge part
Capacitance product, i.e. τ=RC), θ is the fast time parameter of the core pulse signal to be processed, i.e. leading edge portion.
Core pulse signal rising edge restoration methods provided by the embodiments of the present application further include constructing the step of the Restoration model
Suddenly, the step includes:
Core pulse signal biexponential model x [n] is established,Wherein, A is described
The amplitude of core pulse signal to be processed, TsFor the sampling time interval of the digitlization nuclear instrument 100, τ is the core to be processed
The slow time parameter of pulse signal, i.e. failing edge part, θ are the fast time parameter of the core pulse signal to be processed, that is, are risen
Along part.
It establishes and restores signal Single-Index Model y [n],
Transform is done to the core pulse signal biexponential model and obtains X [z]:
Transform is done to the recovery signal Single-Index Model and obtains Y [z]:
Wherein,
Corresponding system function is obtained according to the X [z] and Y [z], and it is extensive to do Z anti transform acquisition to the system function
Multiple model.
The system function is calculated by the following formula to obtain:
Referring to Fig. 5, Fig. 5 is that the Double exponential pulse signal obtained restores the recovery obtained after rising edge through the above steps
Signal and the Double exponential pulse signal contrast figure for not restoring rising edge.Wherein, horizontal axis is the time of signal, and unit can be μ s
(microsecond), the longitudinal axis are the amplitude of signal, and unit can be V (volt) and (be not shown in the figure, in use, determining according to the actual situation
The unit of tentering value and the unit of time).Wherein, the higher curve of peak value be restore rising edge after recovery signal, peak value compared with
Low curve is the Double exponential pulse signal for not restoring rising edge, as shown in Figure 5, restores signal and part Double exponential pulse signal
It is overlapped, the leading edge portion of Double exponential pulse signal is resumed, and failing edge part is constant.It at this time can be by the Double exponential pulse
Signal is equivalent to single index pulse signal.
Processing is formed to the recovery signal in S3.
In the embodiment of the present application, it since trapezoidal pulse is closest to optimum filter waveform, can be adopted in digital multiple tracks
By digital core signal shaping it is trapezoidal pulse with trapezoidal pulse shaping Algorithm, obtains the energy for taking into account energy resolution and counting rate
Spectrum.Therefore, trapezoidal pulse forming is carried out to the recovery signal using trapezoidal pulse shaping Algorithm in the embodiment of the present application.
Referring to Fig. 6, Fig. 6 be to it is described recovery signal carry out trapezoidal pulse forming after trapezoidal pulse signal, peak value compared with
High curve is the trapezoidal pulse signal shaped after rising edge restores, and the lower curve of peak value is to restore without rising edge
The trapezoidal pulse signal shaped afterwards.The concrete principle and implementation method of trapezoidal pulse shaping Algorithm can refer to the prior art, herein
It repeats no more.As can be seen from Figure, trapezoidal pulse forming is done after restoring rising edge to the Double exponential pulse signal, shaped
Trapezoidal pulse signal amplitude afterwards obtains effective compensation.
Referring to Fig. 7, the embodiment of the present application also provides a kind of core pulse signal rising edge recovery device 110, it is applied to number
Word nuclear instrument 100, described device include:
Module 111 is obtained, for obtaining core pulse signal to be processed.
Can be refering to the associated description of step S1 in Fig. 4 about the implementation for obtaining module 111, therefore not to repeat here.
Recovery module 112 restores the upper of the core pulse signal to be processed for being directed to the core pulse signal to be processed
Edge is risen, corresponding recovery signal is obtained.
Implementation about recovery module 112 can be refering to the associated description of step S2 in Fig. 4, and therefore not to repeat here.
Shaping module 113, for processing to be formed to the recovery signal.
Implementation about shaping module 113 can be refering to the associated description of step S3 in Fig. 4, and therefore not to repeat here.
Further, the recovery module 112 is used to the core pulse signal to be processed inputting the recovery pre-established
In model.
It is also used to restore by rising edge of the Restoration model to the core pulse signal to be processed, be corresponded to
Recovery signal.
In one embodiment, Restoration model can be with are as follows:
Wherein, x [n] is the core pulse signal to be processed,TsFor the digitlization core
The sampling time interval of instrument 100, τ are the slow time parameter of the core pulse signal to be processed, i.e., failing edge part, θ are institute
State the fast time parameter of core pulse signal to be processed, i.e. leading edge portion.
Described device further include: model building module, for establishing core pulse signal biexponential model x [n],Wherein, A is the amplitude of the core pulse signal to be processed, TsFor the digitlization
The sampling time interval of nuclear instrument 100, τ are the slow time parameter of the core pulse signal to be processed, i.e. failing edge part, θ is
The fast time parameter of the core pulse signal to be processed, i.e. leading edge portion.
It establishes and restores signal Single-Index Model y [n],
Transform is done to the core pulse signal biexponential model and obtains X [z]:
Transform is done to the recovery signal Single-Index Model and obtains Y [z]:
Wherein,
Corresponding system function is obtained according to the X [z] and Y [z], and it is extensive to do Z anti transform acquisition to the system function
Multiple model.
Further, the model building module is for being calculated by the following formula to obtain system function:
It is understood that the concrete operation method of each functional module in the present embodiment can refer to above method embodiment
The detailed description of middle corresponding steps, it is no longer repeated herein.
In conclusion the embodiment of the present application provides a kind of core pulse signal rising edge restoration methods, device and digitlization
Nuclear instrument 100.The described method includes: obtaining core pulse signal to be processed, the signal to be processed has certain rising edge；For
The core pulse signal to be processed restores the rising edge of the core pulse signal to be processed, obtains corresponding recovery signal；To described
Restore signal and processing is formed.By carrying out rising edge recovery to the core pulse signal to be processed lost there are amplitude, then it is right
Restore signal and does forming processing, the amplitude loss problem of the nuclear signal after improving forming.
In embodiment provided herein, it should be understood that disclosed device and method, it can also be by other
Mode realize.The apparatus embodiments described above are merely exemplary, for example, the flow chart and block diagram in attached drawing are shown
Architectural framework in the cards, function and the behaviour of device according to an embodiment of the present application, method and computer program product
Make.In this regard, each box in flowchart or block diagram can represent a part of a module, section or code, institute
The a part for stating module, section or code includes one or more executable instructions for implementing the specified logical function.
It should also be noted that function marked in the box can also be to be different from attached drawing in some implementations as replacement
The sequence marked occurs.For example, two continuous boxes can actually be basically executed in parallel, they sometimes can also be by
Opposite sequence executes, and this depends on the function involved.It is also noted that each box in block diagram and or flow chart,
And the combination of the box in block diagram and or flow chart, hardware can be based on the defined function of execution or the dedicated of movement
System realize, or can realize using a combination of dedicated hardware and computer instructions.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including institute
State in the process, method, article or equipment of element that there is also other identical elements.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.
Claims (10)
1. a kind of core pulse signal rising edge restoration methods are applied to digitlization nuclear instrument, which is characterized in that the method packet
It includes:
Obtain core pulse signal to be processed；
For the core pulse signal to be processed, restores the rising edge of the core pulse signal to be processed, obtain corresponding recovery
Signal；
Processing is formed to the recovery signal.
2. core pulse signal rising edge restoration methods according to claim 1, which is characterized in that wait locate described in the recovery
The rising edge of core pulse signal is managed, the step of obtaining corresponding recovery signal includes:
In the Restoration model that the core pulse signal input to be processed is pre-established；
Restored by rising edge of the Restoration model to the core pulse signal to be processed, obtains corresponding recovery letter
Number；
The Restoration model are as follows:
Wherein, x [n] is the core pulse signal to be processed,TsFor the digitlization nuclear instrument
Sampling time interval, τ are the slow time parameter of the core pulse signal to be processed, i.e. failing edge part, and θ is the core to be processed
The fast time parameter of pulse signal, i.e. leading edge portion.
3. core pulse signal rising edge restoration methods according to claim 2, which is characterized in that the digitlization nuclear instrument
Including differential circuit and analog-to-digital conversion module, it is described by the Restoration model to the rising edge of the core pulse signal to be processed
The step of being restored, obtaining corresponding recovery signal include:
Obtain core pulse signal to be processed, wherein the core pulse signal to be processed is Double exponential pulse signal；
The Double exponential pulse signal is converted into Double exponential pulse sequence by the analog-to-digital conversion module；
Restored by rising edge of the Restoration model to the Double exponential pulse sequence, obtains corresponding recovery signal.
4. core pulse signal rising edge restoration methods according to claim 2, which is characterized in that the method also includes structures
The step of building the Restoration model, the step include:
Core pulse signal biexponential model x [n] is established,Wherein, A is described to be processed
The amplitude of core pulse signal, TsFor the sampling time interval of the digitlization nuclear instrument, τ is the core pulse signal to be processed
Failing edge signal, θ are the rising edge signal of the core pulse signal to be processed；
It establishes and restores signal Single-Index Model y [n],
Transform is done to the core pulse signal biexponential model and obtains X [z]:
Transform is done to the recovery signal Single-Index Model and obtains Y [z]:
Wherein,
Corresponding system function is obtained according to the X [z] and Y [z], and is done by Z anti transform and is obtained for the system function and restores mould
Type.
5. core pulse signal rising edge restoration methods according to claim 4, which is characterized in that the system function passes through
Following formula is calculated:
6. a kind of core pulse signal rising edge recovery device is applied to digitlization nuclear instrument, which is characterized in that described device packet
It includes:
Module is obtained, for obtaining core pulse signal to be processed；
Recovery module restores the rising edge of the core pulse signal to be processed for being directed to core pulse signal to be processed, obtains pair
The recovery signal answered；
Shaping module, for processing to be formed to the recovery signal.
7. core pulse signal rising edge recovery device according to claim 6, which is characterized in that the recovery module is used for
In the Restoration model that the core pulse signal input to be processed is pre-established；
It is also used to restore by rising edge of the Restoration model to the core pulse signal to be processed, obtain corresponding extensive
Complex signal；
The Restoration model are as follows:
Wherein, x [n] is the core pulse signal to be processed,TsFor the digitlization nuclear instrument
Sampling time interval, τ are the failing edge signal of the core pulse signal to be processed, and θ is the upper of the core pulse signal to be processed
It rises along signal.
8. core pulse signal rising edge recovery device according to claim 7, which is characterized in that described device further include:
Model building module, for establishing core pulse signal biexponential model x [n],
Wherein, A is the amplitude of the core pulse signal to be processed, TsFor the sampling time interval of the digitlization nuclear instrument, τ is described
The failing edge signal of core pulse signal to be processed, θ are the rising edge signal of the core pulse signal to be processed；
It establishes and restores signal Single-Index Model y [n],
Transform is done to the core pulse signal biexponential model and obtains X [z]:
Transform is done to the recovery signal Single-Index Model and obtains Y [z]:
Wherein,
Corresponding system function is obtained according to the X [z] and Y [z], and is done by Z anti transform and is obtained for the system function and restores mould
Type.
9. core pulse signal rising edge recovery device according to claim 8, which is characterized in that the model building module
For being calculated by the following formula to obtain system function:
10. a kind of digitlization nuclear instrument characterized by comprising processor, memory and bus, the memory are stored with
The executable machine readable instructions of the processor, when digitizing nuclear instrument operation, the processor and the memory it
Between by bus communication, the processor executes the machine readable instructions, to execute as described in claim 1-5 any one
Core pulse signal rising edge restoration methods the step of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910370049.9A CN110071706B (en) | 2019-05-06 | 2019-05-06 | Nuclear pulse signal rising edge recovery method and device and digital nuclear instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910370049.9A CN110071706B (en) | 2019-05-06 | 2019-05-06 | Nuclear pulse signal rising edge recovery method and device and digital nuclear instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110071706A true CN110071706A (en) | 2019-07-30 |
| CN110071706B CN110071706B (en) | 2021-03-19 |
Family
ID=67369941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910370049.9A Active CN110071706B (en) | 2019-05-06 | 2019-05-06 | Nuclear pulse signal rising edge recovery method and device and digital nuclear instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110071706B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404542A (en) * | 2020-03-31 | 2020-07-10 | 四川新先达测控技术有限公司 | Double-exponential nuclear signal counting method and device |
| CN111600584A (en) * | 2020-06-01 | 2020-08-28 | 四川新先达测控技术有限公司 | Nuclear pulse signal processing method and system |
| CN111969982A (en) * | 2020-08-19 | 2020-11-20 | 成都理工大学 | Pulse waveform conversion method |
| CN112134545A (en) * | 2020-09-25 | 2020-12-25 | 中国核动力研究设计院 | Trapezoidal forming method, system, terminal and medium based on optimal filter |
| CN112462676A (en) * | 2021-01-27 | 2021-03-09 | 泛华检测技术有限公司 | Device capable of simulating overlapped nuclear pulse signal generation and control method thereof |
| CN112462675A (en) * | 2021-01-27 | 2021-03-09 | 泛华检测技术有限公司 | Cascaded dual-index nuclear pulse signal generating device and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7869526B2 (en) * | 2005-12-19 | 2011-01-11 | University Of South Florida | System and method for a single stage tunable ultra-wideband pulse generator |
| CN106019357A (en) * | 2016-05-23 | 2016-10-12 | 成都理工大学 | Nuclear pulse signal processing method based on RC inverse transformation |
| CN109471151A (en) * | 2018-11-21 | 2019-03-15 | 成都理工大学 | Signal processing method, device and user terminal |
| CN109507709A (en) * | 2018-11-21 | 2019-03-22 | 成都理工大学 | Core pulse signal processing method and processing device |
-
2019
- 2019-05-06 CN CN201910370049.9A patent/CN110071706B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7869526B2 (en) * | 2005-12-19 | 2011-01-11 | University Of South Florida | System and method for a single stage tunable ultra-wideband pulse generator |
| CN106019357A (en) * | 2016-05-23 | 2016-10-12 | 成都理工大学 | Nuclear pulse signal processing method based on RC inverse transformation |
| CN109471151A (en) * | 2018-11-21 | 2019-03-15 | 成都理工大学 | Signal processing method, device and user terminal |
| CN109507709A (en) * | 2018-11-21 | 2019-03-22 | 成都理工大学 | Core pulse signal processing method and processing device |
Non-Patent Citations (1)
| Title |
|---|
| 洪旭: "L边界密度计研制及其在乏燃料后处理中的应用研究", 《中国博士学位论文全文数据库 工程科技II辑》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404542A (en) * | 2020-03-31 | 2020-07-10 | 四川新先达测控技术有限公司 | Double-exponential nuclear signal counting method and device |
| CN111600584A (en) * | 2020-06-01 | 2020-08-28 | 四川新先达测控技术有限公司 | Nuclear pulse signal processing method and system |
| CN111600584B (en) * | 2020-06-01 | 2023-05-26 | 四川新先达测控技术有限公司 | Nuclear pulse signal processing method and system |
| CN111969982A (en) * | 2020-08-19 | 2020-11-20 | 成都理工大学 | Pulse waveform conversion method |
| CN112134545A (en) * | 2020-09-25 | 2020-12-25 | 中国核动力研究设计院 | Trapezoidal forming method, system, terminal and medium based on optimal filter |
| CN112134545B (en) * | 2020-09-25 | 2022-04-22 | 中国核动力研究设计院 | Trapezoidal forming method, system, terminal and medium based on optimal filter |
| CN112462676A (en) * | 2021-01-27 | 2021-03-09 | 泛华检测技术有限公司 | Device capable of simulating overlapped nuclear pulse signal generation and control method thereof |
| CN112462675A (en) * | 2021-01-27 | 2021-03-09 | 泛华检测技术有限公司 | Cascaded dual-index nuclear pulse signal generating device and control method thereof |
| CN112462675B (en) * | 2021-01-27 | 2021-05-07 | 泛华检测技术有限公司 | Cascaded dual-index nuclear pulse signal generating device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110071706B (en) | 2021-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110071706A (en) | Core pulse signal rising edge restoration methods, device and digitlization nuclear instrument | |
| CN108593260B (en) | Optical cable line fault positioning and detecting method and terminal equipment | |
| CN109507709A (en) | Core pulse signal processing method and processing device | |
| CN104407190B (en) | Fully-digital random sampling method | |
| CN106441386B (en) | Data processing method and device based on distributed optical fiber sensing system | |
| CN109873622A (en) | Nuclear signal digital processing method, device and digitlization nuclear instrument | |
| CN113687433A (en) | Bi-LSTM-based magnetotelluric signal denoising method and system | |
| CN107122511A (en) | A kind of super capacitor fractional model parameter identification method | |
| CN103020269B (en) | A kind of method of data verification and device | |
| CN105303584B (en) | Moving target detecting method based on laser radar and device | |
| CN105842116A (en) | Method for plasma density measurement of magnetic confinement nuclear fusion experiment device | |
| CN108107471A (en) | The acquisition methods and device of a kind of point of orientation first arrival data volume | |
| CN107132500B (en) | A kind of synchronous phasor measurement unit on-line calibration method and apparatus | |
| CN109471151A (en) | Signal processing method, device and user terminal | |
| CN103811021B (en) | A kind of method and apparatus resolving waveform | |
| CN109116183A (en) | Harmonic-model parameter identification method, device, storage medium and electronic equipment | |
| CN102495944B (en) | Time series forecasting method and equipment and system adopting same | |
| CN110347965A (en) | Core pulse signal processing method and processing device | |
| CN109100165B (en) | Bridge operation modal analysis method, device, terminal and computer readable storage medium | |
| Galvão et al. | Identification of fractional-order transfer functions using exponentially modulated signals with arbitrary excitation waveforms | |
| CN113030648B (en) | Power cable fault point position determining method and device and terminal equipment | |
| CN110263417A (en) | A kind of temporal characteristics acquisition methods, device and electronic equipment | |
| CN115308538A (en) | Power distribution network fault positioning method, system, terminal and storage medium based on YOLOV5 | |
| CN105005686A (en) | Probability prediction type target tracking method | |
| CN110045362B (en) | RNN-based radar target track identification method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |