CN108462542A - A kind of method and apparatus of determining magnetic resonance imaging system receives link configured transmission - Google Patents
A kind of method and apparatus of determining magnetic resonance imaging system receives link configured transmission Download PDFInfo
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- CN108462542A CN108462542A CN201710096768.7A CN201710096768A CN108462542A CN 108462542 A CN108462542 A CN 108462542A CN 201710096768 A CN201710096768 A CN 201710096768A CN 108462542 A CN108462542 A CN 108462542A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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Abstract
Embodiment of the present invention discloses a kind of method and apparatus of determining magnetic resonance imaging system receives link configured transmission.Receives link includes test signal transmitting link, and this method includes：Emit link transmissions test signal using the test signal；Remaining receives link in addition to using link is emitted except the test signal receives the test signal, and measures the first configured transmission of remaining receives link；The second configured transmission that the test signal emits link is calculated using first configured transmission；Based on first configured transmission and second configured transmission, the configured transmission of the receives link is determined.Embodiment of the present invention can obtain the configured transmission of whole receives links, to use figure pattern matrix to provide possibility.
Description
Technical field
The present invention relates to mr imaging technique fields, more particularly to a kind of determining magnetic resonance imaging system receives link
The method and apparatus of configured transmission.
Background technology
Magnetic resonance (Magnetic Resonance, MR) imaging is with computer technology, electronic circuit technology, superconductor
The development of technology and a kind of biomagnetism nuclear spin imaging technique developed rapidly.It is made one using magnetic field and radio-frequency pulse
The proton (i.e. H+) of precession in body tissue occurs vibration and generates radiofrequency signal, handles and is imaged through computer.It is placed when object
In magnetic field, with electromagnetic wave irradiation appropriate it, be allowed to resonate, then analyze it discharge electromagnetic wave, so that it may constituted with learning
The nuclear position of this object and type can be depicted as the accurate stereo-picture of interior of articles accordingly.
Magnetic resonance imaging system receives link generally include socket, sick bed, switch arrays, receive power discharging device, receiver and
Analog/digital (A/D) conversion port, etc..In order to use figure pattern matrix functions, it usually needs predefine and all receive
The configured transmission of link.
However, conventionally, as transmitting test signal can occupy part receives link, can not complete measurement it is whole
The configured transmission of receives link.
Invention content
Embodiment of the present invention proposes a kind of method and apparatus of determining magnetic resonance imaging system receives link configured transmission.
The technical solution of embodiment of the present invention is as follows：
A kind of method of determining magnetic resonance imaging system receives link configured transmission, the receives link includes test signal
Emit link, this method includes：
Emit link transmissions test signal using the test signal；
Remaining receives link in addition to using link is emitted except the test signal receives the test signal, and measures institute
State the first configured transmission of remaining receives link；
The second configured transmission that the test signal emits link is calculated using first configured transmission；
Based on first configured transmission and second configured transmission, the configured transmission of the receives link is determined.
In one embodiment, the emission port of test signal transmitting link includes original radio frequency channel and original
Analog-to-digital conversion port；
It is described using the first configured transmission calculate test signal transmitting link the second configured transmission include：
The emission port that test signal is emitted to link is changed to comprising original radio frequency channel and the first analog-to-digital conversion port,
And determine second the first median of configured transmission；
The emission port that test signal is emitted to link is changed to comprising the first radio-frequency channel and original modulus conversion port,
And determine second the second median of configured transmission；
The emission port that test signal is emitted to link is changed to comprising the first radio-frequency channel and the first analog-to-digital conversion port,
And determine the second configured transmission third median；
Utilize first configured transmission, first median of the second configured transmission, second configured transmission second
Median and the second configured transmission third median determine the second configured transmission of the test signal transmitting link.
In one embodiment, the receives link includes m radio-frequency channel and n analog-to-digital conversion port；The survey
The emission port that trial signal emits link is (PINi, RXj), wherein original radio frequency channel is PINi, original modulus conversion port is
RXj；
The emission port that test signal is emitted to link is changed to include original radio frequency channel and the first analog-to-digital conversion
Port, and determine that second the first median of configured transmission includes：Emission port is changed to (PINi, RXk), measure RXjThe survey of row
MagnitudeAnd RXpThe measured value of rowAnd calculate RXjEmission port (PIN is removed in rowi, RXj) except configured transmission
Using as first median of the second configured transmission；
The emission port that test signal is emitted to link is changed to convert comprising the first radio-frequency channel and original modulus
Port, and determine that second the second median of configured transmission includes：Emission port is changed to (PINg, RXj), measure PINiCapable
Measured value θg→iAnd PINhCapable measured value θg→hUsing as second median of the second configured transmission；
The emission port that test signal is emitted to link is changed to include the first radio-frequency channel and the first analog-to-digital conversion
Port, and determine that the second configured transmission third median includes：Emission port is changed to (PINg, RXk), measure (PINi,
RXj) measured value(PINi, RXp) measured value(PINh, RXj) measured value(PINh, RXp)
Measured valueUsing as the second configured transmission third median；
Wherein i and g is respectively the positive integer no more than m；J, k and p is respectively the positive integer no more than n.
In one embodiment, first configured transmission, first median of the second configured transmission, described is utilized
Second the second median of configured transmission and the second configured transmission third median determine the test signal transmitting link
Second configured transmission includes：
Utilize θg→iIn include (PINi, RXp) measured value(PINi, RXj) measured value(PINi,
RXp) measured valueCalculate (PINi, RXj) configured transmission medianUtilize θg→hIn include (PINh, RXp)
Measured value(PINh, RXj) measured value(PINh, RXp) measured valueCalculate (PINh, RXj) transmission
Parameter median
It willAdd to θg→iIn, it willAdd to θg→hIn；
Based on supplemented withθg→i, supplementθg→hAnd θi→hIt includes emission port (PIN to calculatei, RXj)
θi→i；
To include emission port (PINi, RXj) θi→i, remove emission port (PINi, RXj) exceptWith the first transmission
Parameter mutually merges, to obtain second parameter.
In one embodiment, described calculate removes emission port (PINi, RXj) exceptIncluding：It utilizes It calculatesWhereinIt is (PIN for emission porti, RXk) when RXp row measured value.
In one embodiment, described calculate includes emission port (PINi, RXj) θi→iIncluding：
Utilize θi→i=θi→h+θg→i-θg→hCalculate θi→i；Wherein θi→hIncluding：Emission port is (PINi, RXk) when RXp arrange
Measured value and be included inIn (PINh, RXj) calculated value.
In one embodiment, the configured transmission of the magnetic resonance imaging system receives link includes phase parameter or width
Spend parameter.
A kind of device of the configured transmission of determining magnetic resonance imaging system receives link, the receives link include that test is believed
Number transmitting link, which includes：
Test signal transmitter unit, for emitting link transmissions test signal using the test signal；
First configured transmission measurement module, for utilizing remaining receives link in addition to test signal transmitting link
The test signal is received, and measures the first configured transmission of remaining receives link；
Second configured transmission computing module emits link for calculating the test signal using first configured transmission
The second configured transmission；
Configured transmission determining module, described in based on first configured transmission and second configured transmission, determining
The configured transmission of receives link.
In one embodiment, the emission port of test signal transmitting link includes original radio frequency channel and original
Analog-to-digital conversion port；
Second configured transmission computing module, the emission port for test signal to be emitted to link are changed to penetrate comprising original
Frequency channel and the first analog-to-digital conversion port, and determine second the first median of configured transmission；Test signal is emitted to the hair of link
It penetrates port and is changed to include the first radio-frequency channel and original modulus conversion port, and determine second the second median of configured transmission；
The emission port that test signal is emitted to link is changed to include the first radio-frequency channel and the first analog-to-digital conversion port, and determines the
Two configured transmission third medians；Utilize first configured transmission, first median of the second configured transmission, described second
The second median of configured transmission and the second configured transmission third median determine the second of the test signal transmitting link
Configured transmission.
In one embodiment, the receives link includes m radio-frequency channel and n analog-to-digital conversion port；The survey
The emission port that trial signal emits link is (PINi, RXj), wherein original radio frequency channel is PINi, original modulus conversion port is
RXj；
Second configured transmission computing module, for emission port to be changed to (PINi, RXk), measure RXjThe measured value of rowAnd RXpThe measured value of rowAnd calculate RXjEmission port (PIN is removed in rowi, RXj) except configured transmissionTo make
For first median of the second configured transmission；Emission port is changed to (PINg, RXj), measure PINiCapable measured value θg→i
And PINhCapable measured value θg→hUsing as second median of the second configured transmission；Emission port is changed to (PINg,
RXk), measure (PINi, RXj) measured value(PINi, RXp) measured value(PINh, RXj) measured value
(PINh, RXp) measured valueUsing as the second configured transmission third median, wherein i and g are respectively little
In the positive integer of m；J, k and p is respectively the positive integer no more than n；Utilize θg→iIn include (PINi, RXp) measured value
(PINi, RXj) measured value(PINi, RXp) measured valueCalculate (PINi, RXj) configured transmission medianUtilize θg→hIn include (PINh, RXp) measured value(PINh, RXj) measured value(PINh, RXp)
Measured valueCalculate (PINh, RXj) configured transmission medianIt willAdd to θg→iIn, it willAdd to θg→h
In；Based on supplemented withθg→i, supplementθg→hAnd θi→hIt includes emission port (PIN to calculatei, RXj) θi→i；It will
Including emission port (PINi, RXj) θi→i, remove emission port (PINi, RXj) exceptIt is harmonious with the first configured transmission
And to obtain second parameter.
In conclusion in embodiments of the present invention, emitting link transmissions test signal using test signal；Using except survey
Trial signal emits remaining receives link except link and receives test signal, and measures the first transmission ginseng of remaining receives link
Number；Calculate the second configured transmission of test signal transmitting link；Based on the first configured transmission and second configured transmission, determine
The configured transmission of receives link.Therefore, embodiment of the present invention can be connect based on remaining in addition to emitting link except test signal
The measurement result of link is received, the configured transmission for the test signal transmitting link that can not be tested is calculated.Therefore, even if transmitting is surveyed
Trial signal can occupy part receives link, and embodiment of the present invention still can completely obtain the transmission ginseng of whole receives links
Number, thus to provide possibility using figure pattern matrix.
Description of the drawings
Fig. 1 is the structural representation that magnetic resonance imaging system receives link configured transmission is tested according to embodiment of the present invention
Figure.
Fig. 2 is the method flow that magnetic resonance imaging system receives link configured transmission is determined according to embodiment of the present invention
Figure.
Fig. 3 is to use (PIN according to embodiment of the present invention2, RX1) test result schematic diagram as emission port.
Fig. 4 is to use (PIN according to embodiment of the present invention2, RX8) test result schematic diagram as emission port.
Fig. 5 is to calculate RX according to embodiment of the present invention1Row (remove emission port (PIN2, RX1) except) and configured transmission
Schematic diagram.
Fig. 6 is to use (PIN according to embodiment of the present invention6, RX1) test result schematic diagram as emission port.
Fig. 7 is to use (PIN according to embodiment of the present invention6, RX8) test result schematic diagram as emission port.
Fig. 8 is to calculate emission port (Pin according to embodiment of the present invention2, RX1) and (Pin11, RX1) configured transmission
Schematic diagram.
Fig. 9 is the schematic diagram for the complete transmission coefficient matix that receives link is determined according to embodiment of the present invention.
Figure 10 is the device knot for the configured transmission that magnetic resonance imaging system receives link is determined according to embodiment of the present invention
Composition.
Specific implementation mode
In order to make technical scheme of the present invention and advantage be more clearly understood, below in conjunction with drawings and the embodiments, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are only used to illustrative illustrate originally
Invention, is not intended to limit the scope of protection of the present invention.
It is succinct and intuitive in order to what is described, hereafter by describing several representative embodiments come the side to the present invention
Case is illustrated.A large amount of details is only used for helping to understand the solution of the present invention in embodiment.However, it will be apparent that the present invention
Technical solution can be not limited to these details when realizing.In order to avoid unnecessarily having obscured the solution of the present invention, some realities
It applies mode not described meticulously, but only gives frame.Hereinafter, " comprising " refers to " including but not limited to ", " root
According to ... " refer to " according at least to ..., but be not limited to according only to ... ".Due to the speech habits of Chinese, hereinafter without spy
When not pointing out the quantity of an ingredient, it is meant that the ingredient is either one or more, or can be regarded as at least one.
Fig. 1 is the structural representation that magnetic resonance imaging system receives link configured transmission is tested according to embodiment of the present invention
Figure.
As shown in Figure 1, the receives link S for receiving magnetic resonance signal generally includes plug 101, sick bed 102, switch arrays
103, power discharging device 104 and A/D conversion ports array 105 are received.Wherein, A/D conversion ports array 105 turns comprising multiple A/D
Change port；Switch arrays 103 include multiple switch, each corresponding radio-frequency channel of switch.
When needing to test configured transmission (for example, phase or amplitude) of receives link S：
First, transmitter 106 generates transmitting test signal, and the transmitting test signal is by BCCS107 and then passes through successively
Cross some predetermined radio frequency channel, sick bed in the scheduled A/D conversion ports of some in A/D conversion ports array 105, switch arrays 103
102 and 101 feed-in DMM adapters 107 of plug.
Then, DMM adapters 107 execute down-frequency conversion to the transmitting test signal, and by the hair after down-frequency conversion
It penetrates test signal and is looped back to remaining A/D conversion port in A/D conversion ports array 105 in addition to the predetermined AD conversion port.
Loopback path specifically includes：Pass through plug 101, disease successively via the transmitting test signal after 107 down-frequency conversion of DMM adapters
Remaining radio-frequency channel, reception power discharging device 104 in bed 102, switch arrays 103 in addition to the predetermined radio frequency channel, are looped back to A/D
Remaining A/D conversion port in conversion port array 105 in addition to the predetermined A/D conversion ports.
It is assumed that switch arrays 103 include m switch (i.e. the number of radio frequency path is m), A/D conversion ports array 105 includes n
A A/D conversion ports.So, the configured transmission test result of receives link S should be the matrix of a m*n.
However, during will emit test signal and be fed into DMM adapters 107, due to having occupied A/D conversion ports
A predetermined switch in a predetermined A/D conversion port and switch arrays 103 in array 105 to DMM adapters 107 to emit
Test signal, therefore data line and a column data will be had in the m*n matrixes and lacked due to obtaining because can not directly test.Also
It is to say, in m*n matrixes, data line and a column data will be lacked, therefore figure pattern can not be used in follow-up signal processing
Matrix carries out compound calculating to magnetic resonance signal.
In view of the technological deficiency for the matrix data that can not completely obtain entire m*n in the prior art, embodiment of the present invention
It proposes that a kind of receives link configured transmission determines scheme, can completely obtain the matrix data of entire m*n, to be used to be follow-up
Figure pattern matrix lays the first stone.
In embodiments of the present invention, magnetic resonance imaging system receives link includes：(1) test signal emits link；(2)
Remaining receives link in addition to test signal emits link.Test signal emits link and is used to emit test to DMM adapters
Signal；Remaining receives link in addition to test signal emits link is used to receive from DMM adapters to be emitted via test signal
The test signal that link is launched.After determining the configured transmission of whole receives links based on embodiment of the present invention, survey
Trial signal emits link as remaining receives link, can be normally used for receiving magnetic resonance signal.
Fig. 2 is the method flow that magnetic resonance imaging system receives link configured transmission is determined according to embodiment of the present invention
Figure.
As shown in Fig. 2, this method includes：
Step 201：Emit link transmissions test signal using test signal.
Herein, transmitter firstly generates transmitting test signal, the transmitting test signal by test signal transmitting link,
Sick bed and plug feed-in DMM adapters.
Step 202：Remaining receives link in addition to using link is emitted except test signal receives test signal, and measures it
First configured transmission of remaining receives link.
Herein, DMM adapters execute down-frequency conversion to the transmitting test signal, and by the transmitting after down-frequency conversion
Test signal is looped back to remaining receives link in addition to test signal emits link.In this loop-back process, it can measure
Obtain the first configured transmission of remaining receives link in addition to test signal emits link.
First configured transmission embodies the configured transmission of remaining receives link in addition to test signal emits link.Than
Such as, the number of radio frequency path is m at once, and when the number of A/D conversion port arrays is n, the first configured transmission is to lack a line number
According to and a column data m*n matrixes (lack test signal emit link configured transmission).
Step 203：The second configured transmission that test signal emits link is calculated using the first configured transmission.
Herein, the second transmission that test signal emits link is calculated based on the first configured transmission obtained in step 201
Parameter.Second configured transmission embodies the configured transmission of test signal transmitting link.Specifically, the second configured transmission is step
That data line and that column data lacking in 202 m*n matrixes.
Step 204：Based on the first configured transmission and the second configured transmission, the configured transmission of receives link is determined.
Herein, the first configured transmission and the second configured transmission are merged, the transmission ginseng of entire receives link can be obtained
Number, to obtain complete m*n matrixes.
In one embodiment, the emission port of test signal transmitting link includes original radio frequency channel and original modulus
Conversion port；
Second configured transmission of calculating test signal transmitting link includes in step 203：Test signal is emitted into link
Emission port is changed to include original radio frequency channel and the first analog-to-digital conversion port, and determines among the second configured transmission first
Value；The emission port that test signal is emitted to link is changed to include the first radio-frequency channel and original modulus conversion port, and true
Fixed second the second median of configured transmission；The emission port that test signal is emitted to link be changed to comprising the first radio-frequency channel and
First analog-to-digital conversion port, and determine the second configured transmission third median；Utilize the first configured transmission, the second configured transmission
One median, second the second median of configured transmission and the second configured transmission third median determine the test signal transmitting chain
Second configured transmission on road.
As it can be seen that emitting link transmission to calculate the test signal that can not be directly tested due to transmitting test signal
Parameter, embodiment of the present invention measure the first configured transmission of remaining receives link that need not emit test signal first, so
Change the emission port of test signal transmitting link again afterwards and tests the configured transmission median changed after emission port, then base
The configured transmission that original test signal emits link is calculated in configured transmission median and the first configured transmission.
In one embodiment, receives link includes m radio-frequency channel and n analog-to-digital conversion port；Test signal is sent out
The emission port for penetrating link is (PINi, RXj), wherein original radio frequency channel is PINi, original modulus conversion port is RXj；
Second configured transmission of calculating test signal transmitting link includes in step 203：
Emission port is changed to (PINi, RXk), measure RXjThe measured value of rowAnd RXpThe measured value of rowAnd
Calculate RXjEmission port (PIN is removed in rowi, RXj) except configured transmissionUsing as second the first median of configured transmission；
Emission port is changed to (PINg, RXj), measure PINiCapable measured value θg→iAnd PINhCapable measured value θg→hUsing as second
The second median of configured transmission；Emission port is changed to (PINg, RXk), measure (PINi, RXj) measured value
(PINi, RXp) measured value(PINh, RXj) measured value(PINh, RXp) measured valueUsing as
Second configured transmission third median；Wherein i and g is respectively the positive integer no more than m；J, k and p is respectively just no more than n
Integer.
In one embodiment, the first configured transmission, second the first median of configured transmission, the second configured transmission are utilized
Second median and the second configured transmission third median determine that the second configured transmission of test signal transmitting link includes：It utilizes
θg→iIn include (PINi, RXp) measured value(PINi, RXj) measured value(PINi, RXp) measured valueCalculate (PINi, RXj) configured transmission medianUtilize θg→hIn include (PINh, RXp) measured value
(PINh, RXj) measured value(PINh, RXp) measured valueCalculate (PINh, RXj) configured transmission medianIt willAdd to θg→iIn, it willAdd to θg→hIn；Based on supplemented withθg→i, supplementθg→hAnd θi→h
Calculate θi→i；By θi→i、Mutually merge with the first configured transmission, to obtain the second parameter.
In one embodiment, it calculatesIncluding：It utilizesIt calculatesWherein
It is (PIN for emission porti, RXk) when RXp row measured value.
In one embodiment, θ is calculatedi→iIncluding：Utilize θi→i=θi→h+θg→i-θg→hCalculate θi→i；θi→hFor transmitting
Port is (PINi, RXk) when RXp row measured value.
In one embodiment, the configured transmission of magnetic resonance imaging system receives link includes phase parameter or amplitude ginseng
Number.
After embodiment determines the phase parameter of receives link through the invention, receives link can be further obtained
Phase compensation matrix.After embodiment determines the range parameter of receives link through the invention, can further it obtain
The amplitude Insertion Loss compensation matrix of receives link.
Below by taking the phase parameter for measuring receives link as an example, embodiment of the present invention is illustrated.
For convenience, it is assumed that magnetic resonance imaging system has 16 radio frequency paths (i.e. m=16), 8 ports A/D (n=
8).Therefore complete test result should be the matrix of a 16*8.This 16 radio-frequency channels are respectively Pin1、Pin2、Pin3、
Pin4、Pin5、Pin6、Pin7、Pin8、Pin9、Pin10、Pin11、Pin12、Pin13、Pin14、Pin15And Pin16.This 8 ends A/D
Mouth is respectively RX1、RX2、RX3、RX4、RX5、RX6、RX7And RX8。
The first step：By (Pini, RXj) as emission port transmitting test signal, and in addition to (Pini, RXj) except its
Remaining receives link receives test signal.In this process, it measures in addition to (Pini, RXj) except remaining receives link transmission
Parameter.
Citing, it is assumed that i 2, j 1, then using (Pin2, RX1) be used as emission port to emit test signal, and remove
(Pin2, RX1) except remaining receives link receive test signal, and measure in addition to (Pin2, RX1) except remaining reception
The configured transmission of link.
Fig. 3 is to use (PIN according to embodiment of the present invention2, RX1) test result schematic diagram as emission port.Such as figure
Shown in 3, in the matrix of m*n, the RX of left-leaning oblique line hatching designation is utilized1The data of rowWith the left-leaning diagonal line hatches of utilization
The Pin of mark2Data (the θ of row2→2) can not directly test to obtain, and the remainder data in the matrix of m*n can be tested directly
It obtains.The data that can directly test are except test signal transmitting link (PIN2, RX1) except remaining receives link
Configured transmission.
The pth column data in the m*n matrixes can be recorded to be calculated in follow-up.It is assumed that p=3, then record the 3rd column data
Second step：By (Pini, RXk) as emission port transmitting test signal, and in addition to (Pini, RXk) except its
Remaining receives link receives test signal.In this process, it measures in addition to (Pini, RXk) except remaining receives link reception
Parameter.
Example in undertaking, it is assumed that i=2, k=8 can test to obtain RX at this timejRow and RXpThe data of row, this two column data note
Record isWith
Fig. 4 is to use (PIN according to embodiment of the present invention2, RX8) test result schematic diagram as emission port.By scheming
4 as it can be seen that utilize vertical line hatching designationWith utilization vertical line hatching designationCorresponding data can be based on test result
It obtains.Moreover, utilizing the RX of left-leaning oblique line hatching designation8The data of rowWith the Pin using left-leaning oblique line hatching designation2
Capable data (θ2→2) can not directly test to obtain.
WhereinLack (Pin2, RX1) data；Lack (Pin2, RX3) data.
Third walks：Calculate RX1In addition to (Pin in row2, RX1) other than remainder data
Specific formula for calculation is：
Herein,To use RX1RX when transmitting1In addition to (Pin in row2, RX1) other than remainder data；It is
Data recorded in one step；WithFor the data recorded in second step.Specifically,In lack (Pin2, RX2)
Data,Lack (Pin2, RX1) data,Lack (Pin2, RX3) data,Lack (Pin2, RX3) number
According to, therefore it is calculatedIn also lack (Pin2, RX1) data.In other words, calculatedIn comprising use RX1
RX when transmitting1In addition to (Pin in row2, RX1) other than remainder data, therefore necessarily include (Pin11, RX1) data
Fig. 5 is to calculate RX according to embodiment of the present invention1Row (remove emission port (PIN2, RX1) except) and configured transmission
Schematic diagram.
As seen from Figure 5, in addition to (Pin2, RX1) other than RX1The data (utilizing Right deviation oblique line hatching designation) of row can
It is calculated.Therefore, with reference to the data in Fig. 3, Pin10Capable data θ2→11For complete data.
4th step：Use (Ping, RXj) as emission port transmitting test signal, and in addition to (Ping, RXj) except
Remaining receives link receives test signal.In this process, it measures in addition to (Ping, RXj) except remaining receives link biography
Defeated parameter.
Example in undertaking, it is assumed that g=6, therefore with (Pin6, RX1) it is emission port, test obtains PiniRow and PinhCapable
Value.Assuming that h=11, therefore test obtains Pin2Row and Pin11Capable data.
Fig. 6 is to use (PIN according to embodiment of the present invention6, RX1) test result schematic diagram as emission port.
As shown in fig. 6, Pin2Row and Pin11Capable data are respectively θ6→2And θ6→11, and all utilize vertical line hatching designation.
Wherein, θ6→2In lack (PIN2, RX1) value (utilizing left-leaning oblique line hatching designation), θ6→11In lack (PIN11, RX1) value
(utilizing left-leaning oblique line hatching designation).
5th step：Use (PINg, RXk) as emission port transmitting test signal, and in addition to (PINg, RXk) except its
Remaining receives link receives test signal.In this process, it measures in addition to (PINg, RXk) except remaining receives link transmission
Parameter.
Example in undertaking continues to assume that k=8, the test result based on the 5th step can obtain (Pin2, RX1)、(Pin2,
RX3)、(Pin11, RX1) and (Pin11, RX3) value.
Fig. 7 is to use (PIN according to embodiment of the present invention6, RX8) test result schematic diagram as emission port.Such as figure
Shown in 7, (Pin2, RX1) value(Pin2, RX3) value(Pin11, RX1)(Pin11, RX3)
ValueIt all can test to obtain in the 5th step, and use vertical line hatching designation respectively.
6th step：(PIN is calculated using following formulai, RXj) and (PINh, RXj) value, i.e. (Pin2, RX1) valueWith
(Pin11, RX1) value
Wherein：Value can be from the θ of the 4th step6→2In directly read,Value can be from the θ of the 4th step6→11In
Directly read.
Fig. 8 is to calculate emission port (PIN according to embodiment of the present inventioni, RXj) and (PINh, RXj) configured transmission
Schematic diagram.
As seen from Figure 8, (Pin2, RX1) value(Pin11, RX1) valueIt can be calculated.By (Pin2,
RX1) valueIt is filled into θ6→2Afterwards, θ6→2Become partial data.By (Pin11, RX1) valueIt is filled into θ6→11Afterwards,
θ6→11Become partial data.
7th step：PIN is calculated using following formulaiRow (i.e. PIN2Row) value.
θ2→2=θ2→11+θ6→2-θ6→11。
Wherein：
θ2→2To use PIN2PIN when transmitting2Capable partial data；θ2→11To use PIN2Pin when transmitting10Capable is complete
Data；
θ6→2Including the 6th step is calculatedTo use PIN6Pin when transmitting2Capable partial data；
θ6→11Including the 6th step is calculatedTo use PIN6Pin when transmitting2Capable partial data.
Therefore, the 7th calculated θ of step2→2Include to use PIN2PIN when transmitting2Capable total data.
By the 7th calculated θ of step2→2It is walked with third calculatedMerge, you can to obtain complete m*n matrixes.
Fig. 9 is the schematic diagram for the complete transmission coefficient matix that receives link is determined according to embodiment of the present invention.
As seen from Figure 9, RX1The total data and Pin of row2The total data of row can be calculated, and other data
It can directly test to obtain, therefore complete test result should be the full matrix of a 16*8.That is, in third
Step calculates RX1In addition to (Pin in row2, RX1) other than remainder dataPIN is calculated in the 7th step2Capable partial data
(including (Pin2, RX1)), therefore RX can be calculated1Row and PIN2Capable partial data, in conjunction with what is obtained in the first step
Remainder data in the matrix of m*n, you can to constitute the full matrix of 16*8.
In the above-described example, with i, g, the concrete numerical value of j, k and p are that example illustrates the present invention.Art technology
Personnel are it is to be appreciated that the specific number of i, g, j, k and p can be adjusted accordingly, as long as i and g are not more than radio-frequency channel number respectively
M, and j, k and p are not more than A/D conversion port numbers n.
Based on foregoing description, the invention also provides a kind of configured transmissions of determining magnetic resonance imaging system receives link
Device.
Figure 10 is the device knot for the configured transmission that magnetic resonance imaging system receives link is determined according to embodiment of the present invention
Composition.Receives link includes test signal transmitting link, which includes：
Test signal transmitter unit 1001, for emitting link transmissions test signal using test signal；
First configured transmission measurement module 1002, for utilizing remaining receives link in addition to test signal transmitting link
Test signal is received, and measures the first configured transmission of remaining receives link；
Second configured transmission computing module 1003 emits link for calculating the test signal using the first configured transmission
The second configured transmission；
Configured transmission determining module 1004 is determined and is received for being based on the first configured transmission and second configured transmission
The configured transmission of link.
In one embodiment, the emission port of test signal transmitting link includes original radio frequency channel and original modulus
Conversion port；
Second configured transmission computing module 1003, the emission port for test signal to be emitted to link are changed to comprising original
Beginning radio-frequency channel and the first analog-to-digital conversion port, and determine second the first median of configured transmission；Test signal is emitted into link
Emission port be changed to include the first radio-frequency channel and original modulus conversion port, and determine the second configured transmission second among
Value；The emission port that test signal is emitted to link is changed to include the first radio-frequency channel and the first analog-to-digital conversion port, and true
Fixed second configured transmission third median；Utilize the first configured transmission, first median of the second configured transmission, described second
The second median of configured transmission and the second configured transmission third median determine the second transmission of test signal transmitting link
Parameter.
In one embodiment, receives link includes m radio-frequency channel and n analog-to-digital conversion port；Test signal is sent out
The emission port for penetrating link is (PINi, RXj), wherein original radio frequency channel is PINi, original modulus conversion port is RXj；
Second configured transmission computing module 1003, for emission port to be changed to (PINi, RXk), measure RXjThe survey of row
MagnitudeAnd RXpThe measured value of rowAnd calculate RXjEmission port (PIN is removed in rowi, RXj) except configured transmission
Using as second the first median of configured transmission；Emission port is changed to (PINg, RXj), measure PINiCapable measured value θg→i
And PINhCapable measured value θg→hUsing as second the second median of configured transmission；Emission port is changed to (PINg, RXk), it surveys
Measure (PINi, RXj) measured value(PINi, RXp) measured value(PINh, RXj) measured valueWith
(PINh, RXp) measured valueUsing as the second configured transmission third median, wherein i and g are respectively just no more than m
Integer；J, k and p is respectively the positive integer no more than n；Utilize θg→iIn include (PINi, RXp) measured value(PINi,
RXj) measured value(PINi, RXp) measured valueCalculate (PINi, RXj) configured transmission medianIt utilizes
θg→hIn include (PINh, RXp) measured value(PINh, RXj) measured value(PINh, RXp) measured valueCalculate (PINh, RXj) configured transmission medianIt willAdd to θg→iIn, it willAdd to θg→hIn；It is based on
It supplementsθg→i, supplementθg→hAnd θi→hIt includes emission port (PIN to calculatei, RXj) θi→i；It will include hair
Penetrate port (PINi, RXj) θi→i, remove emission port (PINi, RXj) exceptMutually merge with the first configured transmission, with
To the second parameter.
It should be noted that step and module not all in above-mentioned each flow and each structure chart is all necessary, it can
To ignore certain steps or module according to the actual needs.Each step execution sequence be not it is fixed, can as needed into
Row adjustment.The division of each module is intended merely to facilitate the division functionally that description uses, and in actual implementation, a module can
It is realized by multiple modules with point, the function of multiple modules can also be realized by the same module, these modules can be located at same
In a equipment, it can also be located in different equipment.
Hardware module in each embodiment mechanically or can be realized electronically.For example, a hardware module
May include that the permanent circuit specially designed or logical device (such as application specific processor, such as FPGA or ASIC) are specific for completing
Operation.Hardware module can also include programmable logic device or circuit by software provisional configuration (as included general procedure
Device or other programmable processors) for executing specific operation.Mechanical system is used as specific, or using dedicated permanent
Property circuit, or hardware module is realized using the circuit (such as being configured by software) of provisional configuration, can according to cost and
It is temporal to consider to determine.
The present invention also provides a kind of machine readable storage medium, storage is implemented for making a machine execute the present invention such as
The instruction of mode the method.Specifically, system or device equipped with storage medium can be provided, deposited on the storage medium
The software program code for realizing the function of any embodiment in the above embodiment is stored up, and makes the meter of the system or device
Calculation machine (or CPU or MPU) reads and executes the program code being stored in a storage medium.Further, it is also possible to by being based on program
The instruction of code makes operating system of calculating hands- operation etc. to complete partly or completely practical operation.It can also will be from depositing
The program code that storage media is read is write in memory set in the expansion board being inserted into computer or writes and calculate
In the memory being arranged in the expanding element that machine is connected, the then instruction based on program code makes to be mounted on expansion board or expansion
CPU etc. on exhibition unit comes execution part and whole practical operations, to realize any embodiment in the above embodiment
Function.
Storage medium embodiment for providing program code include floppy disk, hard disk, magneto-optic disk, CD (such as CD-ROM,
CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), tape, non-volatile memory card and ROM.Selectively,
Can by communication network from server computer download program code.
In conclusion in embodiments of the present invention, emitting link transmissions test signal using test signal；Using except survey
Trial signal emits remaining receives link except link and receives test signal, and measures the first transmission ginseng of remaining receives link
Number；Calculate the second configured transmission of test signal transmitting link；Based on the first configured transmission and the second configured transmission, determines and receive
The configured transmission of link.Therefore, embodiment of the present invention can be based on remaining reception chain in addition to emitting link except test signal
The measurement result on road calculates the configured transmission for the test signal transmitting link that can not be tested.Therefore, even if transmitting test letter
Number part receives link can be occupied, embodiment of the present invention still can completely obtain the configured transmission of whole receives links, from
And subsequently to provide possibility using figure pattern matrix.
The above, only better embodiment of the invention, are not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. a kind of method of determining magnetic resonance imaging system receives link configured transmission, which is characterized in that the receives link packet
Test signal transmitting link is included, this method includes：
Emit link transmissions test signal using the test signal；
Remaining receives link in addition to using link is emitted except the test signal receives the test signal, and measure it is described its
First configured transmission of remaining receives link；
The second configured transmission that the test signal emits link is calculated using first configured transmission；
Based on first configured transmission and second configured transmission, the configured transmission of the receives link is determined.
2. the method for determining magnetic resonance imaging system receives link configured transmission according to claim 1, which is characterized in that
The emission port of the test signal transmitting link includes original radio frequency channel and original modulus conversion port；
It is described using the first configured transmission calculate test signal transmitting link the second configured transmission include：
The emission port that test signal is emitted to link is changed to include original radio frequency channel and the first analog-to-digital conversion port, and true
Fixed second the first median of configured transmission；
The emission port that test signal is emitted to link is changed to include the first radio-frequency channel and original modulus conversion port, and true
Fixed second the second median of configured transmission；
The emission port that test signal is emitted to link is changed to include the first radio-frequency channel and the first analog-to-digital conversion port, and true
Fixed second configured transmission third median；
Among first configured transmission, first median of the second configured transmission, second configured transmission second
Value and the second configured transmission third median determine the second configured transmission of the test signal transmitting link.
3. the method for the configured transmission of determining magnetic resonance imaging system receives link according to claim 2, feature exist
In the receives link includes m radio-frequency channel and n analog-to-digital conversion port；The transmitting terminal of the test signal transmitting link
Mouth is (PINi, RXj), wherein original radio frequency channel is PINi, original modulus conversion port is RXj；
The emission port that test signal is emitted to link is changed to comprising original radio frequency channel and the first analog-to-digital conversion port,
And determine that second the first median of configured transmission includes：Emission port is changed to (PINi, RXk), measure RXjThe measured value of rowAnd RXpThe measured value of rowAnd calculate RXjEmission port (PIN is removed in rowi, RXj) except configured transmissionTo make
For first median of the second configured transmission；
The emission port that test signal is emitted to link is changed to comprising the first radio-frequency channel and original modulus conversion port,
And determine that second the second median of configured transmission includes：Emission port is changed to (PINg, RXj), measure PINiCapable measured value
θg→iAnd PINhCapable measured value θg→hUsing as second median of the second configured transmission；
The emission port that test signal is emitted to link is changed to comprising the first radio-frequency channel and the first analog-to-digital conversion port,
And determine that the second configured transmission third median includes：Emission port is changed to (PINg, RXk), measure (PINi, RXj) survey
Magnitude(PINi, RXp) measured value(PINh, RXj) measured value(PINh, RXp) measured valueUsing as the second configured transmission third median；
Wherein i and g is respectively the positive integer no more than m；J, k and p is respectively the positive integer no more than n.
4. the method for the configured transmission of determining magnetic resonance imaging system receives link according to claim 3, feature exist
In utilizing first configured transmission, first median of the second configured transmission, second median of the second configured transmission
Determine that the second configured transmission that the test signal emits link includes with the second configured transmission third median：
Utilize θg→iIn include (PINi, RXp) measured value(PINi, RXj) measured value(PINi, RXp) survey
MagnitudeCalculate (PINi, RXj) configured transmission medianUtilize θg→hIn include (PINh, RXp) measured value(PINh, RXj) measured value(PINh, RXp) measured valueCalculate (PINh, RXj) configured transmission in
Between be worth
It willAdd to θg→iIn, it willAdd to θg→hIn；
Based on supplemented withθg→i, supplementθg→hAnd θi→hIt includes emission port (PIN to calculatei, RXj) θi→i；
To include emission port (PINi, RXj) θi→i, remove emission port (PINi, RXj) exceptWith the first configured transmission
Mutually merge, to obtain second parameter.
5. the method for the configured transmission of determining magnetic resonance imaging system receives link according to claim 3, feature exist
In,
Described calculate removes emission port (PINi, RXj) exceptIncluding：It utilizesIt calculates
WhereinIt is (PIN for emission porti, RXk) when RXp row measured value.
6. the method for the configured transmission of determining magnetic resonance imaging system receives link according to claim 4, feature exist
In,
Described calculate includes emission port (PINi, RXj) θi→iIncluding：
Utilize θi→i=θi→h+θg→i-θg→hCalculate θi→i；Wherein θi→hIncluding：Emission port is (PINi, RXk) when RXp row survey
It magnitude and is included inIn (PINh, RXj) calculated value.
7. the side of the configured transmission of the determination magnetic resonance imaging system receives link according to any one of claim 1-6
Method, which is characterized in that the configured transmission of the magnetic resonance imaging system receives link includes phase parameter or range parameter.
8. a kind of device of the configured transmission of determining magnetic resonance imaging system receives link, which is characterized in that the receives link
Emit link including test signal, which includes：
Test signal transmitter unit, for emitting link transmissions test signal using the test signal；
First configured transmission measurement module is received for remaining receives link in addition to using link is emitted except the test signal
The test signal, and measure the first configured transmission of remaining receives link；
Second configured transmission computing module, for calculating that the test signal emits link using first configured transmission
Two configured transmissions；
Configured transmission determining module determines the reception for being based on first configured transmission and second configured transmission
The configured transmission of link.
9. the device of the configured transmission of determining magnetic resonance imaging system receives link according to claim 8, feature exist
In,
The emission port of the test signal transmitting link includes original radio frequency channel and original modulus conversion port；
Second configured transmission computing module, the emission port for test signal to be emitted to link are changed to lead to comprising original radio frequency
Road and the first analog-to-digital conversion port, and determine second the first median of configured transmission；Test signal is emitted to the transmitting terminal of link
Mouth is changed to include the first radio-frequency channel and original modulus conversion port, and determines second the second median of configured transmission；It will survey
The emission port of trial signal transmitting link is changed to include the first radio-frequency channel and the first analog-to-digital conversion port, and determines that second passes
Defeated parameter third median；Utilize first configured transmission, first median of the second configured transmission, second transmission
The second median of parameter and the second configured transmission third median determine the second transmission of the test signal transmitting link
Parameter.
10. the device of the configured transmission of determining magnetic resonance imaging system receives link according to claim 9, feature exist
In,
The receives link includes m radio-frequency channel and n analog-to-digital conversion port；The transmitting terminal of the test signal transmitting link
Mouth is (PINi, RXj), wherein original radio frequency channel is PINi, original modulus conversion port is RXj；
Second configured transmission computing module, for emission port to be changed to (PINi, RXk), measure RXjThe measured value of rowAnd
RXpThe measured value of rowAnd calculate RXjEmission port (PIN is removed in rowi, RXj) except configured transmissionUsing as described
Second the first median of configured transmission；Emission port is changed to (PINg, RXj), measure PINiCapable measured value θg→iAnd PINh
Capable measured value θg→hUsing as second median of the second configured transmission；Emission port is changed to (PINg, RXk), it measures
(PINi, RXj) measured value(PINi, RXp) measured value(PINh, RXj) measured value(PINh,
RXp) measured valueUsing as the second configured transmission third median, wherein i and g are respectively just whole no more than m
Number；J, k and p is respectively the positive integer no more than n；Utilize θg→iIn include (PINi, RXp) measured value(PINi, RXj)
Measured value(PINi, RXp) measured valueCalculate (PINi, RXj) configured transmission medianUtilize θg→h
In include (PINh, RXp) measured value(PINh, RXj) measured value(PINh, RXp) measured value
Calculate (PINh, RXj) configured transmission medianIt willAdd to θg→iIn, it willAdd to θg→hIn；Based on supplemented withθg→i, supplementθg→hAnd θi→hIt includes emission port (PIN to calculatei, RXj) θi→i；It will include emission port
(PINi, RXj) θi→i, remove emission port (PINi, RXj) exceptMutually merge with the first configured transmission, to obtain described
Two parameters.
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