CN107356901A - Triple channel positioning using TDOA device - Google Patents
Triple channel positioning using TDOA device Download PDFInfo
- Publication number
- CN107356901A CN107356901A CN201710588852.0A CN201710588852A CN107356901A CN 107356901 A CN107356901 A CN 107356901A CN 201710588852 A CN201710588852 A CN 201710588852A CN 107356901 A CN107356901 A CN 107356901A
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- Prior art keywords
- industrial computer
- tdoa
- onboard
- triple channel
- frequency
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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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Information Transfer Systems (AREA)
Abstract
The invention discloses triple channel positioning using TDOA device, including industrial computer and high-speed AD acquisition card, industrial master board is provided with the industrial computer, CPU processor, internal memory, electric board, it is characterized in that, also include being provided with capture card on the industrial master board in the industrial computer, the AD capture cards include onboard and collection subcard, at least three are provided with upper channel in collection subcard, gathered data simultaneously, it is additionally provided with external clock passage and triggering control passage, data are carried out to handle and store in real time, display, all passages are transferred in industrial computer by onboard, the algorithm computing of positioning using TDOA is carried out by the output clock of clock lane.The multiple-channel output phaselocked loop for the collection divider that described output clock uses, pass through the loop of locking phase, utilize the frequency and phase of the reference signal control loop internal oscillation signal of outside input, realize that output signal frequency, from motion tracking, can ensure to gather the acquisition precision of multiple passages simultaneously to frequency input signal.
Description
Technical field
The present invention relates to a kind of positioning using TDOA device, and in particular to triple channel positioning using TDOA device.
Background technology
At present on the market generally use binary channels either single pass data acquisition, it is necessary to simultaneously gather two or one
The data of individual passage, and handled in real time, data storage and display.Therefore, the equipment operand is big, it is desirable to possesses powerful
Disposal ability, the configuration requirement of its hardware resource is high, if user will not have on this industrial computer after carry independence GPU video cards
There are unnecessary groove position carry PCIE AD capture cards and other capture cards, integral extension is weaker, and current institute on the market
The capture card used, it is impossible to external trigger is carried out, clocked flip, is triggered manually, and it is smart without multiple passages can be allowed to carry out
The device really gathered.
The content of the invention
The technical problems to be solved by the invention are while data acquisition are carried out in triple channel, and acquisition precision is compared with mesh
Preceding acquisition precision height is, and it is an object of the present invention to provide triple channel positioning using TDOA device, is solved the problems, such as above-mentioned.
The present invention is achieved through the following technical solutions：
Triple channel positioning using TDOA device, including industrial computer and high-speed AD acquisition card, industrial master is provided with the industrial computer
Plate, CPU processor, internal memory, electric board, it is characterised in that also including being provided with collection on the industrial master board in the industrial computer
Card, the AD capture cards include onboard and collection subcard, gather in subcard and be provided with least three with upper channel, while gather number
According to, external clock passage and triggering control passage are additionally provided with, data progress is handled and stored in real time, display, all passages
It is transferred to by onboard in industrial computer, the algorithm computing of positioning using TDOA is carried out by the output clock of clock lane.Described is defeated
Go out the multiple-channel output phaselocked loop of the collection divider of clock use, by the loop of locking phase, utilize the reference of outside input
The frequency and phase of signal control loop internal oscillation signal, realize output signal frequency to frequency input signal it is automatic with
Track, it can ensure to gather the acquisition precision of multiple passages simultaneously.
Further, the frequency in the external clock passage is 2300~2650MHz, and incoming frequency is 0~250MHz.
Selected frequency within this range, can be controlled in real time by the concussion frequency of inside.
Further, radiating panel and fan are also included in the industrial computer, the radiating panel is set on AD capture cards
Portion and bottom, fan are arranged on industrial computer housing end face.Because the triple channel of use is acquired, the caloric values of AD capture cards compared with
Binary channels, which improves, has 50%, it is necessary in the top of AD capture cards and bottom while set radiating panel to be radiated, in order that must
The heat of whole industrial computer is distributed, and the heat in industrial computer is radiated by fan.
Further, the data in the collection each passage of subcard are inputted in onboard by input signal, input letter
Number it is broadband signal, signal frequency is less than 150MHz.The a width of 1.4GHz. inputs of signal input tape that collection subcard is supported in itself are adopted
With AC coupled, according to input request signal, balun TC1-1T is selected to realize the AC coupled input of signal, the 3dB of the balun
With a width of 0.4MHz to 500MHz. therefore, the incoming frequency scope of collection plate is maximum and supports 500MHz inputs
Further, it is described to trigger control passage by three kinds of external trigger, clocked flip, manual triggering modes to onboard
Carry out signal input.Triggering that can be in several ways, is continuously gathered, and opening for AD capture cards is controlled by industrial computer
Beginning/end data acquisition.
The present invention compared with prior art, has the following advantages and advantages：
1st, triple channel positioning using TDOA device of the present invention, while data acquisition is carried out in triple channel, acquisition range is wide, collection
Data are more；
2nd, triple channel positioning using TDOA device of the present invention is high by the more current acquisition precision of clock circuit acquisition precision.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is present system flow chart.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
As shown in figure 1, triple channel positioning using TDOA device of the present invention, triple channel positioning using TDOA device, including industrial computer and height
Fast AD capture cards, industrial master board, CPU processor, internal memory, electric board are provided with the industrial computer, it is characterised in that also include
Capture card is provided with industrial master board in the industrial computer, the AD capture cards include onboard and collection subcard, gather subcard
At least three are inside provided with upper channel, while gathered data, it is additionally provided with external clock passage and triggering control passage, logarithm
According to handle and store in real time, display, all passages are transferred in industrial computer by onboard, during by the output of clock lane
Clock carries out the algorithm computing of positioning using TDOA.The multiple-channel output phaselocked loop for the collection divider that described output clock uses, passes through
The loop of locking phase, using the frequency and phase of the reference signal control loop internal oscillation signal of outside input, realize defeated
Go out signal frequency to frequency input signal from motion tracking, can ensure to gather the acquisition precision of multiple passages simultaneously.City at present
It is narrower more than 300MHz/14bit A/D chip range of choice on face, select TI company ADS5474.
Embodiment two
The present embodiment carries out type selecting on the basis of embodiment one, and this programme selection uses the collection divider of ADI companies
Multiple-channel output phaselocked loop AD9516-1.VCO frequencies be 2300~2650MHz.Reference input frequency range is 0~250MHz.
The output clock for having known AD9516 is to determine triple channel is synchronous in this programme key, the frequency in the external clock passage
Rate is 2300~2650MHz, and incoming frequency is 0~250MHz.Selected frequency within this range, can pass through the concussion frequency of inside
Rate is controlled in real time.
Embodiment three
The present embodiment also includes radiating panel and fan, the radiating on the basis of embodiment one in the industrial computer
Plate sets AD capture cards top and bottom, fan to be arranged on industrial computer housing end face.Because the triple channel of use is acquired,
The caloric value of AD capture cards improves compared with binary channels has 50%, it is necessary in the top of AD capture cards and bottom while set radiating panel
Radiated, in order that the heat for obtaining whole industrial computer is distributed, the heat in industrial computer is radiated by fan.
Example IV
For the present embodiment on the basis of embodiment one, the data in the collection each passage of subcard are defeated by input signal
Enter in onboard, input signal is broadband signal, and signal frequency is less than 150MHz.The signal input tape that collection subcard is supported in itself
A width of 1.4GHz. inputs use AC coupled, according to input request signal, select balun TC1-1T to realize the AC coupled of signal
Input, for 0.4MHz to 500MHz. therefore, the incoming frequency scope of collection plate is maximum and supports for the three dB bandwidth of the balun
The 500MHz inputs triggering control passage is by external trigger, clocked flip, three kinds of modes of triggering carry out letter to onboard manually
Number input.Triggering that can be in several ways, is continuously gathered, controlling AD capture cards by industrial computer/end
Data acquisition.
Embodiment five
The present embodiment optimizes to embodiment one, wherein onboard selection 1GB DDR3-1066, data throughput reach
4GB/s.DDR3 is encapsulated as fifo interface easy to use by the interface logic of offer, is uploaded available for multiple use such as PCIe slow
Punching, data delay etc..The synchronized sampling of interchannel is required as 1ns. in actual use, due to the sampling of AD data collecting cards
Time is explanations of the relevant with sampling clock according to ADS5474 tables of data, and the sampling instant of signal is located at sampling clock rising
200ps. shakes are about 200fs after, and this shake can be ignored to the hardware of sampling precision.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (5)
1. triple channel positioning using TDOA device, including industrial computer and high-speed AD acquisition card, be provided with the industrial computer industrial master board,
CPU processor, internal memory, electric board, it is characterised in that also including being provided with capture card on the industrial master board in the industrial computer,
The AD capture cards include onboard and collection subcard, gather and at least three are provided with subcard with upper channel, while gathered data,
External clock passage and triggering control passage are additionally provided with, data are carried out to handle in real time and storage, display, all passages pass through
It is onboard to be transferred in industrial computer, the algorithm computing of positioning using TDOA is carried out by the output clock of clock lane.
2. triple channel positioning using TDOA device according to claim 1, it is characterised in that the frequency in the external clock passage
Rate is 2300~2650MHz, and incoming frequency is 0~250MHz.
3. triple channel positioning using TDOA device according to claim 1, it is characterised in that also include radiating in the industrial computer
Plate and fan, the radiating panel set AD capture cards top and bottom, fan to be arranged on industrial computer housing end face.
4. triple channel positioning using TDOA device according to claim 1, it is characterised in that in the collection each passage of subcard
Data inputted by input signal in onboard, input signal is broadband signal, and signal frequency is less than 150MHz.
5. triple channel positioning using TDOA device according to claim 1, it is characterised in that the triggering control passage passes through outer
Portion's triggering, clocked flip, three kinds of modes of triggering carry out signal input to onboard manually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588852.0A CN107356901A (en) | 2017-07-19 | 2017-07-19 | Triple channel positioning using TDOA device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588852.0A CN107356901A (en) | 2017-07-19 | 2017-07-19 | Triple channel positioning using TDOA device |
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| Publication Number | Publication Date |
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| CN107356901A true CN107356901A (en) | 2017-11-17 |
Family
ID=60284391
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710588852.0A Pending CN107356901A (en) | 2017-07-19 | 2017-07-19 | Triple channel positioning using TDOA device |
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| CN (1) | CN107356901A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107368445A (en) * | 2017-08-15 | 2017-11-21 | 成都普诺科技有限公司 | Double channels acquisition and channelizing equipment |
| CN111061336A (en) * | 2019-12-13 | 2020-04-24 | 杭州电子科技大学 | A multi-channel output clock generator with adjustable delay |
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| JPH0829500A (en) * | 1994-07-15 | 1996-02-02 | Advantest Corp | Semiconductor testing device |
| CN203376745U (en) * | 2013-08-12 | 2014-01-01 | 上海聚星仪器有限公司 | Multi-channel radio-frequency signal synchronous acquisition system based on PXIe bus |
| CN204165946U (en) * | 2014-11-04 | 2015-02-18 | 河海大学常州校区 | Multichannel ultrasonic signal synchronous |
| CN104950770A (en) * | 2015-06-24 | 2015-09-30 | 中国船舶重工集团公司第七二六研究所 | Controllable high-speed multi-channel signal acquisition control circuit system and control method thereof |
| CN105828032A (en) * | 2016-03-22 | 2016-08-03 | 成都普诺科技有限公司 | Data acquiring and recording system |
| CN207037404U (en) * | 2017-07-19 | 2018-02-23 | 成都普诺科技有限公司 | Triple channel positioning using TDOA equipment |
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2017
- 2017-07-19 CN CN201710588852.0A patent/CN107356901A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0829500A (en) * | 1994-07-15 | 1996-02-02 | Advantest Corp | Semiconductor testing device |
| CN203376745U (en) * | 2013-08-12 | 2014-01-01 | 上海聚星仪器有限公司 | Multi-channel radio-frequency signal synchronous acquisition system based on PXIe bus |
| CN204165946U (en) * | 2014-11-04 | 2015-02-18 | 河海大学常州校区 | Multichannel ultrasonic signal synchronous |
| CN104950770A (en) * | 2015-06-24 | 2015-09-30 | 中国船舶重工集团公司第七二六研究所 | Controllable high-speed multi-channel signal acquisition control circuit system and control method thereof |
| CN105828032A (en) * | 2016-03-22 | 2016-08-03 | 成都普诺科技有限公司 | Data acquiring and recording system |
| CN207037404U (en) * | 2017-07-19 | 2018-02-23 | 成都普诺科技有限公司 | Triple channel positioning using TDOA equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107368445A (en) * | 2017-08-15 | 2017-11-21 | 成都普诺科技有限公司 | Double channels acquisition and channelizing equipment |
| CN111061336A (en) * | 2019-12-13 | 2020-04-24 | 杭州电子科技大学 | A multi-channel output clock generator with adjustable delay |
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Application publication date: 20171117 |