CN106371074A - Serial time sequence control device and method for multichannel array ground penetrating radar - Google Patents
Serial time sequence control device and method for multichannel array ground penetrating radar Download PDFInfo
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- CN106371074A CN106371074A CN201611098515.5A CN201611098515A CN106371074A CN 106371074 A CN106371074 A CN 106371074A CN 201611098515 A CN201611098515 A CN 201611098515A CN 106371074 A CN106371074 A CN 106371074A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- Radar, Positioning & Navigation (AREA)
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- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a serial time sequence control device and method for a multichannel array ground penetrating radar. The device comprises a microcomputer and a stepping control module electrically connected to the microcomputer via an FPGA; and after that the microcomputer issues channel related configuration parameters to the FPGA, the FPGA issues an emission sequence parameter to an emission gating switch, a reception sequence parameter to a reception gating switch, and the channel related configuration parameters to the stepping control module. According to the disclosed device and method, the N-channel collection system in a serial time sequence control manner is composed of one stepping control module, one analog-to-digital converter and three N-path gating switches only, antenna echoes of N channels are connected in series by controlling the gating switches, and each channel works in one scanning period in a time sharing manner. Under the condition that the amount of channel is not more than 8, components are fewer, the control device and method are characterized by small size, low cost, low power consumption and flexible control, and emission and reception units in the array can be controlled to work in a random sequence.
Description
Technical field
The present invention relates to engineering geophysics field, more particularly, to a kind of series connection multichannel array GPR time sequence control device
And method.
Background technology
Multichannel array GPR can expand scanning area, by permissible with reference to multiple-look technique and sar treatment technology
Realize Imaging of Underground Objects, be the Detection Techniques in more forward position in engineering geophysics field.The sequential control of array GPR at present
System many using control modes in parallel, this control mode is by n independent step motion control module and n analog-digital converter simultaneously
Connection, forms n acquisition channel, and each acquisition channel is made up of a stepping sampling control module and an analog-digital converter,
Each acquisition channel time-sharing work within a scan period.Although Parallel Control mode has sequencing contro simply with more
The advantage being capable of high speed acquisition in the case of port number, but to there is also hardware cost higher for it, and system bulk is big and work(
Consume big shortcoming.
Content of the invention
The technical problem to be solved is exactly to provide the series connection multichannel of a kind of small volume, low cost and small power consumption
Array GPR time sequence control device and method.
The present invention adopts the following technical scheme that
A kind of series connection multichannel array GPR time sequence control device, it thes improvement is that, described device includes: miniature
Computer, the step motion control module being electrically connected with microcomputer by fpga, microcomputer issues passage relevant configuration ginseng
After number is to fpga, fpga is handed down to transmitting gating switch respectively shooting sequence parameter and reception sequence parameter and opens with receiving gating
Close, the relevant configured parameter of passage be handed down to step motion control module, step motion control module produces and this passage relevant configuration ginseng
Transmitting trigger sequence and reception trigger sequence that number matches, wherein transmitting trigger sequence is by more than two
Penetrate trigger be composed in series, receive trigger sequence by more than two reception trigger be composed in series；It is connected with two
The transmitting gating switch of above transmitter electrically connect with fpga, is derived from the synchronizing signal of fpga when occurring, and launches gating switch and presses
According to the shooting sequence that fpga sets, each transmitting trigger is distributed to corresponding transmitter, above-mentioned transmitter is all and array antenna
Electrical connection, be connected with more than two receivers receives the synchronizing signal appearance that gating switch electrically connected, was derived from fpga with fpga
When, receive gating switch and distribute each reception trigger to corresponding receiver according to the reception order that fpga sets, above-mentioned
Receiver is all electrically connected with array antenna, and echo gating switch is in order by the echo-signal series connection from receiver, series connection
Antenna echo afterwards is converted to digital signal by analog-digital converter, and fpga according to shooting sequence and receives each passage of sequence notation
Echo-signal, the content of labelling is the antenna echo of this passage is by which transmitter and the generation of which receiver, micro-
Type computer corresponds to pick up every passage antenna echo and deliver to respective channel data display window according to the information of institute's labelling and shows
Output.
Further, the quantity of described transmitter and receiver is identical, is more than or equal to 2, less than or equal to 8.
A kind of series connection multichannel array GPR sequential control method, using above-mentioned device, comprises the steps:
(1) microcomputer issue channel number, shooting sequence, reception order and the related configuration parameter of each passage to
Fpga, fpga shooting sequence parameter and receive sequence parameter respectively be handed down to transmitting gating switch and receive gating switch,
The parameter receiving is handed down to step motion control module, the transmitting trigger that the generation of step motion control module is matched with configuration parameter
Sequence and reception trigger sequence, wherein transmitting trigger sequence are composed in series by n group transmitting trigger, receive triggering
Signal sequence receives trigger by n group and is composed in series；
(2) fpga sets according to user channel number, shooting sequence and reception order, control gating switch by synchronizing signal
Realize the distribution of trigger, when synchronizing signal occurs, transmitting gating switch is respectively by first group of transmitting trigger distribution
To transmitter 1, second group of transmitting trigger distributes to transmitter 2, and n-th group transmitting trigger distributes to transmitting by that analogy
Machine n, receives gating switch in the same manner and also will receive trigger and distribute in this manner, so after distribution must: a passage is by launching
Machine 1 and receiver 1 form, and two passages are made up of transmitter 2 and receiver 2, and n-channel is by transmitter n and receiver n by that analogy
Composition；
(3) echo gating switch the signal that receiver receives is together in series through analog-digital converter to n-channel order according to from 1
Send into microcomputer, fpga according to shooting sequence and receives each passage echo-signal of sequence notation, and the content of labelling is should
The antenna echo of passage is to be produced by which transmitter and which receiver, and microcomputer is according to the information of institute's labelling
The every passage antenna echo of corresponding pickup simultaneously delivers to respective channel data display window display output.
Further, in step (1), the related configuration parameter of each passage includes time window, scan period, sample point
Number.
Further, in step (1)-(3), the numerical value of n is equal, is the natural number more than or equal to 2, less than or equal to 8.
The beneficial effects of the present invention is:
Series connection multichannel array GPR time sequence control device disclosed in this invention and method, using tandem sequencing contro
Only by a step motion control module, the gating switch on an analog-digital converter and 3 n roads forms the n-channel acquisition system of mode,
By controlling gating switch, the antenna echo of n passage is together in series, each passage time-sharing work within a scan period.
In the case of less port number (not more than 8), component number is less, has small volume, low cost, small power consumption and control
Flexible feature, can control transmitter unit and receiving unit work in array in any order.
Brief description
Fig. 1 is that the circuit of series connection multichannel array GPR time sequence control device disclosed in the embodiment of the present invention 1 connects
Structural representation；
Fig. 2 is the sequencing contro figure of series connection multichannel array GPR sequential control method disclosed in the embodiment of the present invention 1.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit
Determine the present invention.
Embodiment 1, as shown in figure 1, a kind of present embodiment discloses series connection multichannel array GPR sequencing contro dress
Put, described device includes: microcomputer, the step motion control module being electrically connected with microcomputer by fpga, microcomputer
Calculation machine issue passage relevant configured parameter to fpga after, fpga shooting sequence parameter and receive sequence parameter respectively be handed down to send out
Penetrate gating switch and receive gating switch；The relevant configured parameter of passage is handed down to step motion control module, step motion control module
Produce the transmitting trigger sequence matching with this passage relevant configured parameter and receive trigger sequence, wherein launch and touch
Signalling sequence is composed in series by transmitting trigger more than two, receives trigger sequence by reception triggering letter more than two
Number it is composed in series；The transmitting gating switch being connected with more than two transmitters electrically connects, is derived from the synchronizing signal of fpga with fpga
During appearance, transmitting gating switch distributes each transmitting trigger to corresponding transmitter according to the shooting sequence that fpga sets, on
The transmitter stated all is electrically connected with array antenna, the reception gating switch being connected with more than two receivers electrically connected with fpga,
From the synchronizing signal of fpga occur when, receive the reception order that gating switch sets according to fpga and each trigger that receives divided
It is assigned to corresponding receiver, above-mentioned receiver is all electrically connected with array antenna, echo gating switch will return according to 1 to n order
Ripple signal is connected, and the antenna echo after series connection is converted to digital signal by analog-digital converter, and fpga is according to shooting sequence and reception
Each passage echo-signal of sequence notation, the content of labelling be this passage antenna echo be by which transmitter and which
Receiver produces, and microcomputer corresponds to according to the information of institute's labelling and picks up every passage antenna echo and deliver to respective channel number
According to display window display output.
The present embodiment also discloses a kind of series connection multichannel array GPR sequential control method, and the method includes triggering
The pickup of the antenna echo of the distribution of signal and respective channel.
The distribution of trigger is by controlling gating switch will launch trigger and receiving trigger according to user
Desired order-assigned is to the transmitter and receiver specified.
The pickup of the antenna echo of respective channel is by the fpga first antenna echo signal subsection to series connection, then labelling leads to
Road information, microcomputer corresponds to according to the information of institute's labelling and picks up every passage antenna echo and deliver to respective channel data display
Window.
Specifically, microcomputer issues parameter to fpga, and this parameter comprises channel number, shooting sequence, reception
Order and the configuration parameter (time window, scan period, number of sampling) of each passage correlation.Fpga shooting sequence parameter and
Receive sequence parameter to be handed down to transmitting gating switch respectively and receive gating switch；The relevant configured parameter of passage is handed down to step
Enter control module, step motion control module is produced the transmitting trigger sequence being matched with configuration parameter and receives trigger sequence
Row.When synchronizing signal occurs, three gating switch actions simultaneously, transmitting gating switch and reception gating switch are according to setting
Order by transmitting trigger and receive trigger be assigned in the transmitter and receiver specified, echo gating switch according to
Echo-signal is connected by 1 to n order, and the antenna echo after series connection is converted to digital signal by analog-digital converter, fpga according to
Shooting sequence and receive each passage echo-signal of sequence notation, the content of labelling be this passage antenna echo be by which
Transmitter produces with which receiver, and microcomputer corresponds to according to the information of institute's labelling and picks up every passage antenna echo simultaneously
Deliver to respective channel data display window.
As shown in Fig. 2 step motion control module produces transmitting trigger sequence respectively according to the parameter that microcomputer issues
Row and reception trigger sequence, wherein transmitting trigger sequence are composed in series by n group transmitting trigger, receive triggering and believe
Number sequence receives trigger by n group and is composed in series.When synchronizing signal occurs, first group is launched by transmitting gating switch respectively
Trigger distributes to transmitter 1, and second group of transmitting trigger distributes to transmitter 2, n-th group transmitting triggering letter by that analogy
Number distribute to transmitter n, receive gating switch in the same manner and also will receive trigger and distribute in this manner, so after distribution must:
One passage is made up of transmitter 1 and receiver 1, and two passages are made up of transmitter 2 and receiver 2, and n-channel is by launching by that analogy
Machine n and receiver n composition.Echo gating switch send and analog digital conversion according to antenna echo being together in series to n-channel order from 1
Device.The antenna echo of series connection is divided into n section with synchronizing signal for mark and picks up by microcomputer in order, and each section i.e.
For the antenna echo of each passage, then again the antenna echo of each passage is delivered to respective channel data display window.
Above-mentioned for transmitter and receiver according to one-to-one corresponding order operation principle, any transmitter and any receiver
Corresponding operation principle is as follows: for example, the array antenna of a four-way is it is desirable to transmitter 1 is led to for one with receiver 2 composition
Road, transmitter 2 and receiver 3 form a passage, and transmitter 3 and receiver 4 form a passage, transmitter 4 and receiver 1
One passage of composition.Microcomputer is given according to the job order of required transmitter and receiver and passage configuration parameter
Shooting sequence parameter and reception sequence parameter are handed down to transmitting gating switch and receive gating switch by fpga, fpga；Passage
Relevant configured parameter is handed down to step motion control module, and step motion control module produces one and is composed in series by 4 groups of transmitting triggers
Transmitting trigger sequence and one by 4 groups receive triggers be composed in series reception trigger sequence, synchronizing signal occur
When, transmitting gating switch, by first group of transmitting trigger distribution transmitter 1, distributes to transmitter 2 for second group, third component is joined
To transmitter 3, distribute to transmitter 4 for the 4th group.Receive gating switch and first group of reception trigger distributed to receiver 2,
Distribute to receiver 3, third component dispensing receiver 4 for second group, distribute to receiver 1 for the 4th group.After so distributing: first
Passage is made up of transmitter 1 and receiver 2, and second channel is made up of transmitter 2 and receiver 3, and third channel is by transmitter 3 He
Receiver 4 forms, and fourth lane is made up of transmitter 4 and receiver 1.Echo gating switch with synchronizing signal for mark according to from
Antenna echo is together in series and send and analog-digital converter by one to four channel sequence.Fpga is with synchronizing signal for mark in order
The antenna echo of series connection is divided into 4 sections, corresponds to the antenna echo of 4 passages respectively, path marking is added to every section of antenna echo,
Labelling content is: the antenna echo of first passage is produced by transmitter 1 and receiver machine 2, and the antenna echo of second channel is by sending out
Penetrate machine 2 and receiver 3 produces, the antenna echo of third channel is produced by transmitter 3 and receiver 4, and the antenna of fourth lane returns
Ripple is produced by transmitter 4 and receiver 1.Microcomputer corresponds to according to the information of institute's labelling and picks up each passage antenna echo simultaneously
Deliver to respective channel data display window.Operation principle as described above, can obtain control array in any order in the same manner
Middle transmitter unit and the embodiment of receiving unit work.
Claims (5)
1. a kind of series connection multichannel array GPR time sequence control device is it is characterised in that described device includes: microcomputer
Calculation machine, the step motion control module being electrically connected with microcomputer by fpga, microcomputer issues passage relevant configured parameter
After fpga, shooting sequence parameter and reception sequence parameter are handed down to transmitting gating switch to fpga respectively and reception gating is opened
Close, the relevant configured parameter of passage be handed down to step motion control module, step motion control module produces and this passage relevant configuration ginseng
Transmitting trigger sequence and reception trigger sequence that number matches, wherein transmitting trigger sequence is by more than two
Penetrate trigger be composed in series, receive trigger sequence by more than two reception trigger be composed in series；It is connected with two
The transmitting gating switch of above transmitter electrically connect with fpga, is derived from the synchronizing signal of fpga when occurring, and launches gating switch and presses
According to the shooting sequence that fpga sets, each transmitting trigger is distributed to corresponding transmitter, above-mentioned transmitter is all and array antenna
Electrical connection, be connected with more than two receivers receives the synchronizing signal appearance that gating switch electrically connected, was derived from fpga with fpga
When, receive gating switch and distribute each reception trigger to corresponding receiver according to the reception order that fpga sets, above-mentioned
Receiver is all electrically connected with array antenna, and echo gating switch is in order by the echo-signal series connection from receiver, series connection
Antenna echo afterwards is converted to digital signal by analog-digital converter, and fpga according to shooting sequence and receives each passage of sequence notation
Echo-signal, the content of labelling is the antenna echo of this passage is by which transmitter and the generation of which receiver, micro-
Type computer corresponds to pick up every passage antenna echo and deliver to respective channel data display window according to the information of institute's labelling and shows
Output.
2. according to claim 1 series connection multichannel array GPR time sequence control device it is characterised in that: described
Machine of penetrating is identical with the quantity of receiver, is more than or equal to 2, less than or equal to 8.
3. a kind of series connection multichannel array GPR sequential control method, using the device described in the claims 1, it is special
Levy and be, comprise the steps:
(1) microcomputer issue channel number, shooting sequence, reception order and the related configuration parameter of each passage to
Fpga, fpga shooting sequence parameter and receive sequence parameter respectively be handed down to transmitting gating switch and receive gating switch,
The parameter receiving is handed down to step motion control module, the transmitting trigger that the generation of step motion control module is matched with configuration parameter
Sequence and reception trigger sequence, wherein transmitting trigger sequence are composed in series by n group transmitting trigger, receive triggering
Signal sequence receives trigger by n group and is composed in series；
(2) fpga sets according to user channel number, shooting sequence and reception order, control gating switch by synchronizing signal
Realize the distribution of trigger, when synchronizing signal occurs, transmitting gating switch is respectively by first group of transmitting trigger distribution
To transmitter 1, second group of transmitting trigger distributes to transmitter 2, and n-th group transmitting trigger distributes to transmitting by that analogy
Machine n, receives gating switch in the same manner and also will receive trigger and distribute in this manner, so after distribution must: a passage is by launching
Machine 1 and receiver 1 form, and two passages are made up of transmitter 2 and receiver 2, and n-channel is by transmitter n and receiver n by that analogy
Composition；
(3) echo gating switch the signal that receiver receives is together in series through analog-digital converter to n-channel order according to from 1
Send into microcomputer, fpga according to shooting sequence and receives each passage echo-signal of sequence notation, and the content of labelling is should
The antenna echo of passage is to be produced by which transmitter and which receiver, and microcomputer is according to the information of institute's labelling
The every passage antenna echo of corresponding pickup simultaneously delivers to respective channel data display window display output.
4. according to claim 3 series connection multichannel array GPR sequential control method it is characterised in that: in step
(1), in, the related configuration parameter of each passage includes time window, scan period, number of sampling.
5. according to claim 3 series connection multichannel array GPR sequential control method it is characterised in that: in step
(1) in-(3), the numerical value of n is equal, is the natural number more than or equal to 2, less than or equal to 8.
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| CN201611098515.5A CN106371074B (en) | 2016-12-04 | 2016-12-04 | A kind of series connection multichannel array Ground Penetrating Radar time sequence control device and method |
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| CN201611098515.5A CN106371074B (en) | 2016-12-04 | 2016-12-04 | A kind of series connection multichannel array Ground Penetrating Radar time sequence control device and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181846A (en) * | 2017-12-12 | 2018-06-19 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | A kind of multiple array radar module sequential control method |
| CN109633758A (en) * | 2018-12-25 | 2019-04-16 | 北京华航无线电测量研究所 | A kind of compound ground penetrating radar system of multifrequency |
| CN109683137A (en) * | 2018-12-24 | 2019-04-26 | 中国电子科技集团公司第二十研究所 | A kind of multi-channel synchronization method applied to phased-array radar |
| CN111029791A (en) * | 2019-12-20 | 2020-04-17 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Tightly coupled dipole reflection antenna array |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5381110A (en) * | 1991-12-20 | 1995-01-10 | Raytheon Company | Spurious frequency suppressor |
| CN102799131A (en) * | 2012-08-08 | 2012-11-28 | 中国科学院东北地理与农业生态研究所 | Ground penetrating radar lower computer control system based on field programmable gate array (FPGA) |
| CN103941296A (en) * | 2014-04-04 | 2014-07-23 | 中国人民解放军理工大学 | Double-frequency double-antenna ground penetrating radar |
| CN104749644A (en) * | 2015-03-20 | 2015-07-01 | 华北水利水电大学 | Portable ground penetrating radar capable of detecting soil water content in field |
| CN105116815A (en) * | 2015-09-29 | 2015-12-02 | 上海十贝电子科技有限公司 | Cascaded trigger |
-
2016
- 2016-12-04 CN CN201611098515.5A patent/CN106371074B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5381110A (en) * | 1991-12-20 | 1995-01-10 | Raytheon Company | Spurious frequency suppressor |
| CN102799131A (en) * | 2012-08-08 | 2012-11-28 | 中国科学院东北地理与农业生态研究所 | Ground penetrating radar lower computer control system based on field programmable gate array (FPGA) |
| CN103941296A (en) * | 2014-04-04 | 2014-07-23 | 中国人民解放军理工大学 | Double-frequency double-antenna ground penetrating radar |
| CN104749644A (en) * | 2015-03-20 | 2015-07-01 | 华北水利水电大学 | Portable ground penetrating radar capable of detecting soil water content in field |
| CN105116815A (en) * | 2015-09-29 | 2015-12-02 | 上海十贝电子科技有限公司 | Cascaded trigger |
Non-Patent Citations (3)
| Title |
|---|
| JOHN LI ET AL.: "Band-pass sampling techniques for high resolution multi-channel single-chip radar systems", 《RADAR CONFERENCE》 * |
| 冯全源 等: "《数字电子技术》", 31 August 2015 * |
| 刑连营，吴兵: "一种基于FPGA的多通道数据采集***设计与实现", 《信息科技》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181846A (en) * | 2017-12-12 | 2018-06-19 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | A kind of multiple array radar module sequential control method |
| CN108181846B (en) * | 2017-12-12 | 2020-02-18 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Multi-array radar module time sequence control method |
| CN109683137A (en) * | 2018-12-24 | 2019-04-26 | 中国电子科技集团公司第二十研究所 | A kind of multi-channel synchronization method applied to phased-array radar |
| CN109633758A (en) * | 2018-12-25 | 2019-04-16 | 北京华航无线电测量研究所 | A kind of compound ground penetrating radar system of multifrequency |
| CN111029791A (en) * | 2019-12-20 | 2020-04-17 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Tightly coupled dipole reflection antenna array |
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