CN106301363B - A variety of difference source frequency output equipments - Google Patents
A variety of difference source frequency output equipments Download PDFInfo
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- CN106301363B CN106301363B CN201610596267.0A CN201610596267A CN106301363B CN 106301363 B CN106301363 B CN 106301363B CN 201610596267 A CN201610596267 A CN 201610596267A CN 106301363 B CN106301363 B CN 106301363B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/26—Automatic control of frequency or phase; Synchronisation using energy levels of molecules, atoms, or subatomic particles as a frequency reference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
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- Engineering & Computer Science (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
One kind of multiple different source frequency output equipments disclosed by the invention, it is desirable to provide a kind of to switch the good frequency source device of fast, high reliablity, accuracy height, length stability.The technical scheme is that: standard-frequency signal of the not homologous satellite second signal of two-way after lock cell generates two-way locking phase, and standard-frequency signal is respectively outputted to amplification output unit A and amplifies output unit B；Wherein two are selected to open rubidium clock calibrating frequency between the first analog phase-locked look PLL_A to being connected in parallel on three all the way, rubidium clock clean up unit generates standard-frequency signal all the way, and amplification output unit c is sent to by rubidium clock clean up unit, it is on the signal of reference with rubidium clock frequency signal that own signal is locked in by two clean up oscillators in parallel, the output signal of rubidium clock clean up unit is transferred to the amplification output unit C in amplification output unit, is achieved in the not homologous standard-frequency signal in three tunnels of output.
Description
Technical field
The present invention relates to a kind of frequency sources, and more specifically the present invention relates to a kind of high performance frequency for receiving satellite-signal is raw
Forming apparatus.
Background technique
Traditional frequency marking equipment is that required multiple standards frequency signal is generated by atomic clock, since it must be connected
External reference signal causes to be fixedly mounted, thus defines its scope of application；And atomic clock is at high cost, volume is big, by ring
Border influences greatly, and reliability is low；In addition must external second signal carry out calibrating frequency, therefore its structure is complicated, has a single function, and the scope of application has
Limit；Atomic clock short-term stability is poor, needs surely for a long time to can be only achieved preferable index, quite inconvenience in actual use.If only adopting
With crystal oscillator small in size, although short-term stability is good, long-term stability is poor, and easy to aging, accuracy is low.It is awarded according to satellite
When, although convenient, when satellite-signal is bad, whole equipment will be in paralyzed state, therefore its poor reliability.
Summary of the invention
Purpose of the present invention place in view of the shortcomings of the prior art, provides that a kind of switching is fast, high reliablity, accuracy
It is high, length stability is good, superior performance frequency source device.
The technical solution adopted by the present invention to solve the technical problems is one kind of multiple difference source frequency output equipments, packet
It includes: matrix unit, lock cell and amplification output unit, it is characterised in that: matrix unit is defended the two-way selected is not homologous
Star second signal is transferred to lock cell, and the not homologous satellite second signal of two-way is locked through the simulation of two autonomous workings in lock cell
Xiang Huan, crystal oscillator and distributor generate the standard-frequency signal after two-way locking phase, and by the standard frequency after two-way locking phase
Signal is respectively outputted to amplification output unit A and amplifies output unit B；In the not homologous satellite second signal of above-mentioned two-way,
In all the way also be used to connection to one end three select the two switch other ends connect the first analog phase-locked look PLL_A rubidium clock calibrating frequency go to school
Frequently, rubidium clock clean up unit also can produce standard-frequency signal all the way, which passes through containing there are two hilted broadswords pair
The rubidium clock clean up unit that throw switch shunt circuit is constituted is sent to amplification output unit c, and rubidium clock clean up unit
A clean up oscillator operation, two clean up oscillators in parallel are selected by two single-pole double-throw switch (SPDT)s of switching
Be able to achieve by own signal be locked in rubidium clock frequency signal be reference signal on, by the output of rubidium clock clean up unit
Signal is transferred to the amplification output unit C in amplification output unit, is achieved in the not homologous standard-frequency signal in three tunnels of output.
The present invention has the advantages that compared with the prior art.
Switching is fast.The not homologous standard satellite second signal of three in the present invention two-way for selecting two switches to generate matrix unit
It is transferred to lock cell and carries out Frequency Locking and switching, lock cell can be selected as rubidium clock work using built-in single-pole double-throw switch (SPDT)
Clean up oscillator, whole device frequency conversion speed is fast (being smaller than 15ns), switches simple and fast.The present invention can be with
It is electrically connected respectively with matrix unit, lock cell, amplification output unit by man-machine interaction unit, controls the trend of various signals
It, in actual use can be by way of programming with the switching of switch, it is preferable to can be touched in the installation in appearance of whole device
Display screen is touched, real time inspection antenna receives satellite information, phase lock loop locks state and working condition, signal processing and output shape
State.Switch is clicked on screen with finger, corresponding service aisle can be selected, achieve the purpose that switching.And it is aobvious to increase the time
Show, real-time display satellite time.
High reliablity.Whole device of the present invention has the characteristics that high reliability, such as there are two antenna, two receiver moulds
Block damages cause not working in the case where, can be selected by way of switching all the way satellite-signal work on；
It, can also be by built in lock cell in the case that three antennas and three receiver chips damage when satellite-signal is very poor
Tame Rubidium Clock clean up unit work on, the accuracy of the normal work and signal that will not influence whole device is reliable
Property mutually the make an uproar indexs such as length is steady reduce the maintenance of frequency source device to substantially prolong the service life of frequency source device
Number.
Accuracy is high, length stability is good.The present invention in circuit originally use can receive simultaneously second signal and
Crystal oscillator is locked on satellite second signal by the phase difference of both comparisons, has had both satellite-signal by the phaselocked loop of frequency signal
Time accuracy height and clean up oscillator the fabulous advantage of short-term stability, overcome that crystal oscillator ageing rate is high, satellite
The shortcomings that signal is vulnerable to interference.Three kinds of frequency signals from lock cell are carried out signal shaping, put by amplification output unit point
Greatly, after buffering, branch, the not homologous standard-frequency signal of multiple functions is exported, stable and reliable in work, output signal spectrum is pure
It spends high.When satellite-signal shake, rubidium clock clean up unit can play its advantage that length stability is good, accuracy is high.
Combined by the advantages of persons that satellite-signal, rubidium clock clean up unit, phase-locked loop pll is several, realizes high performance letter
Number output.
Check whether satellite antenna is interfered.Since satellite-signal and antenna are highly susceptible to different degrees of interference,
Wherein two-way satellite-signal progress locking phase is defeated by receiving three kinds of different satellite-signals, and using switch selection by the present invention
Out.The signal generated by comparison two paths of signals and rubidium clock phase locking unit, can carry out satellite-signal comparison, know whether that certain is defended
Star signal is shaken, and quickly determines if to be interfered, and it is appropriate whether antenna disposes.It can be by receiving a variety of satellite-signals
The output of a variety of high quality standards frequency signals is realized through built-in ultra-small volume rubidium clock phase locking unit, phaselocked loop etc..It, which has, cuts
Change the advantages that fast, high reliablity, accuracy is high, length stability is good, superior performance.
Detailed description of the invention
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated；It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.In order to illustrate technical solutions according to the invention, illustrate below by embodiment.
Fig. 1 is the circuit theory schematic diagram of a variety of different source frequency output equipments of the present invention.
Specific embodiment
Refering to fig. 1.In a most preferred embodiment described below, one kind of multiple difference source frequency output equipments can lead to
It crosses and receives a variety of satellite-signals and 06 type ultra-small volume rubidium clock phase locking unit of built-in BM2102-, phaselocked loop, clean up oscillation
Device realizes the output of a variety of high quality standards frequency signals.A variety of different source frequency output equipments specifically include that matrix list
Member, lock cell and amplification output unit.Wherein, each to be input to amplifier, matrix through the satellite-signal that antenna receives
Unit input terminal common-battery connects three amplifiers, and it is 3 × 3 signal switching matrix, 3 × 3 letters that each amplifier, which is electrically connected matrix,
Number switching matrix output end is electrically connected three satellite receiver modules, and each satellite receiver module output end electrical connection three selects two
Switch input terminal, three select two output switching terminals to export two-way satellite second signal to lock cell.Preferred receiver module can be by
Receiver chip is realized.
Matrix unit uses multiple three-in-one antennas and signal amplifier, and 3 × 3 signal switching matrix in sequential series, more
Kind receiver module and three selects two switches to switch the satellite-signal received.Various receiver module by being connected on 3 × 3 respectively
Signal switching matrix and three selects GPS receiver, BD receiver and GLONASS receiver between two switches to form.Matrix unit
The not homologous satellite second signal of the two-way of generation, three select two switches to select, and the two-way after various receiver module is different to be defended
Star second signal is transferred to lock cell and carries out Frequency Locking, and the not homologous satellite second signal of two-way is through two independence in lock cell
The analog phase-locked look of work, crystal oscillator and distributor generate the standard-frequency signal after two-way locking phase, and by two-way locking phase
Standard-frequency signal afterwards is respectively outputted to amplification output unit A and amplifies output unit B；Lock cell is also available and rubidium clock
Concatenated single-pole double-throw switch (SPDT), the selection locking phase that wherein clean up oscillator carries out rubidium clock all the way export.It is connected in parallel on three and selects two
Rubidium clock clean up unit between switch and the first analog phase-locked look PLL_A uses the side of clean up oscillator 1:1 backup
Formula generates standard-frequency signal.In the not homologous satellite second signal of above-mentioned two-way, wherein being also used to all the way to wherein being given all the way
The rubidium clock that one end connection three selects the two switch other ends to connect the first analog phase-locked look PLL_A removes calibrating frequency, rubidium clock clean up unit
Also it can produce standard-frequency signal all the way, which passes through containing there are two single-pole double-throw switch (SPDT) shunt circuit compositions
Rubidium clock clean up unit is sent to amplification output unit c, and rubidium clock clean up unit can be by switching two single-pole double throws
To select a clean up oscillator operation, two clean up oscillators in parallel are able to achieve and lock own signal switch
Being scheduled on is on the signal of reference with rubidium clock frequency signal, and the output signal of rubidium clock clean up unit is transferred to amplification output unit
In amplification output unit C, be achieved in the not homologous standard-frequency signal in three tunnels of output.
Amplify output unit respectively for three kinds from above-mentioned lock cell and rubidium clock phase locking unit not homologous standard frequencies
After rate signal carries out signal shaping, amplification, branch, coding, the not homologous standard-frequency signal of multiple functions is exported.Amplify defeated
Unit can carry out shaping amplification by amplifier out, power splitter carries out branch, FPGA is divided, and coding etc. is single to locking
Three kinds of standard-frequency signals of member output carry out signal shaping, amplification, branch, coding, and frequency dividing exports the not homologous of multiple functions
Standard-frequency signal.
Lock cell includes two phase locked-loop units and a rubidium clock phase locking unit, phase locked-loop unit include in sequential series
Analog phase-locked look, crystal oscillator and signal distributor, wherein two-way analog phase-locked look will select the two of two switches from three respectively
The different satellite second signal in road is by crystal oscillator with input signal distributor after frequency.
Rubidium clock clean up unit based on the received three select two switches to satellite second signal to rubidium clock carry out calibrating frequency and tame and docile
Which clean up oscillation clothes, the standard-frequency signal that the rubidium clock after taming generates can select by the first single-pole double-throw switch (SPDT)
Device work, is sent into the second single-pole double-throw switch (SPDT) through the first clean up oscillator all the way, and another way is shaken by the 2nd clean up
It swings device and is sent into the second single-pole double-throw switch (SPDT), two paths of signals passes through the second single-pole double-throw switch (SPDT) and is sent to amplification output unit C.
Rubidium clock clean up unit includes selecting the two switch other ends to connect the first analog phase-locked look to one end connection three all the way
It the rubidium clock of PLL_A and is connected on first single-pole double-throw switch (SPDT) of rubidium clock, and by the first single-pole double-throw switch (SPDT), is connected in parallel on the
The shunt circuit that two clean up oscillators between one single-pole double-throw switch (SPDT) and the second single-pole double-throw switch (SPDT) are formed.
Rubidium clock phase locking unit can receive the not homologous satellite second signal of the two-way from matrix unit.First via satellite second letter
It is single number to be transferred to amplification output by the first phase locked-loop unit phase-locked loop pll _ A and crystal oscillator in sequential series and signal distributor A
Amplification output unit A in member, the second road satellite second signal is by the second phase locked-loop unit analog phase-locked look PLL_B and sequentially goes here and there
The crystal oscillator and signal distributor B of connection are transferred to the amplification output unit B in amplification output unit.Rubidium clock clean up unit can connect
Receive any second signal of satellite all the way and carry out calibrating frequency, rubidium clock clean up unit can based on the received three select two switches to the satellite second
Signal carries out calibrating frequency to rubidium clock and tames, and the standard-frequency signal that the rubidium clock after taming generates can pass through the first single-pole double-throw switch (SPDT)
Clean up oscillator operation all the way is selected, is sent into the second single-pole double-throw switch (SPDT) through the first clean up oscillator all the way, it is another
The second single-pole double-throw switch (SPDT) is sent by the 2nd clean up oscillator in road, and two paths of signals passes through the second single-pole double-throw switch (SPDT) biography
It send to amplification output unit C.
When satellite-signal is good, amplification output unit A and the better performances for amplifying output unit B, rubidium clock phase locking unit is most
The signal exported eventually is by amplification output unit C as backup.
When satellite-signal is bad, amplification output unit A and the performance for amplifying output unit B are poor, and satellite-signal one is jumped,
In phase locking unit with the phaselocked loop inside amplification output unit A and the phase locking unit that is electrically connected of amplification output unit B will losing lock,
It relocks, the final signal that rubidium clock is generated without external second signal, rubidium clock clean up unit at this time, i.e. amplification output is single
The stability reliability of the first C indexs such as mutually make an uproar are much better than amplification output unit A and amplification output unit B, and switching is exceedingly fast, to rear
Continuous circuit influence can be ignored completely.Therefore this device is applied widely, can move the very severe countryside of environment, can also set
In interior, the defect of current varying environment different designs is met.
Claims (10)
1. one kind of multiple difference source frequency output equipments, comprising: matrix unit, lock cell and amplification output unit, feature
Be: the not homologous satellite second signal of the two-way selected is transferred to lock cell, two-way not homologous satellite second by matrix unit
Mark of the signal after the analog phase-locked look of two autonomous workings, crystal oscillator and distributor in lock cell generate two-way locking phase
Quasi- frequency signal, and the standard-frequency signal after two-way locking phase is respectively outputted to amplification output unit A and amplifies output unit
B；In the not homologous satellite second signal of above-mentioned two-way, wherein connecting the second signal of satellite all the way of the first analog phase-locked look PLL_A
Rubidium clock calibrating frequency is given, standard-frequency signal all the way is generated by rubidium clock clean up unit, the standard-frequency signal is by there are two containing
The rubidium clock clean up unit in parallel that single-pole double-throw switch (SPDT) is constituted is sent to amplification output unit c, and rubidium clock clean up is mono-
Member selects a clean up oscillator operation, two clean up oscillations in parallel by two single-pole double-throw switch (SPDT)s of switching
It is to pass the output signal of rubidium clock clean up unit on the signal of reference with rubidium clock frequency signal that own signal is locked in by device
The defeated amplification output unit C in amplification output unit is achieved in the not homologous standard-frequency signal in three tunnels of output.
2. a variety of different source frequency output equipments as described in claim 1, it is characterised in that: amplification output unit difference is in the future
Signal shaping, amplification, branch, coding are carried out from three kinds of not homologous frequency signals of above-mentioned lock cell and rubidium clock phase locking unit
Afterwards, the not homologous standard-frequency signal of multiple functions is exported.
3. a variety of different source frequency output equipments as described in claim 1, it is characterised in that: each to be defended through what antenna received
Star signal is all input to amplifier, and signal switching matrix input terminal is electrically connected three amplifiers, and each amplifier is electrically connected square
The signal switching matrix that battle array is 3 × 3,3 × 3 signal switching matrix output ends are electrically connected three satellite receiver modules, Mei Gewei
Two switch input terminals are selected in star receiver module output end electrical connection three, three select two output switching terminals export two-way satellite second signal to
Lock cell.
4. a variety of different source frequency output equipments as claimed in claim 3, it is characterised in that: matrix unit is closed using multiple three
One antenna and signal amplifier, and 3 × 3 signal switching matrix in sequential series, various receiver module and three select two switches to cut
The satellite-signal that changing-over receives.
5. a variety of different source frequency output equipments as claimed in claim 3, it is characterised in that: various receiver module is by respectively
Being connected on 3 × 3 signal switching matrix and three selects GPS receiver, BD receiver and GLONASS between two switches to receive unit
At.
6. a variety of different source frequency output equipments as described in claim 1, it is characterised in that: lock cell includes two locking phases
Ring element and a rubidium clock phase locking unit, phase locked-loop unit include analog phase-locked look in sequential series, crystal oscillator and signal
Distributor, wherein the satellite second signal for selecting the two-way of two switches different from three is passed through crystal respectively by two-way analog phase-locked look
Oscillator is the same as input signal distributor after frequency.
7. a variety of different source frequency output equipments as described in claim 1, it is characterised in that: phase-locked loop pll _ A passes through comparison
The difference on the frequency of satellite second signal and the crystal oscillator of distributor feedback, control crystal oscillator oscillation generate and satellite second signal
Relevant standard-frequency signal；The rubidium clock clean for the satellite second signal that one end connection is connected with the first analog phase-locked look PLL_A
Up unit generates standard-frequency signal by the way of clean up oscillator 1:1 backup.
8. a variety of different source frequency output equipments as described in claim 1, it is characterised in that: rubidium clock phase locking unit includes connection
The rubidium clock of the second signal of satellite all the way of first analog phase-locked look PLL_A and with concatenated first single-pole double-throw switch (SPDT) of the rubidium clock,
And by the first single-pole double-throw switch (SPDT), the rubidium clock being connected in parallel between the first single-pole double-throw switch (SPDT) and the second single-pole double-throw switch (SPDT)
The shunt circuit that clean up unit is formed.
9. a variety of different source frequency output equipments as described in claim 1, it is characterised in that: rubidium clock clean up unit includes
Two be connected in parallel between the first single-pole double-throw switch (SPDT) and the second single-pole double-throw switch (SPDT) clean up oscillator in parallel.
10. a variety of different source frequency output equipments as described in claim 1, it is characterised in that: rubidium clock phase locking unit is according to connecing
Receive three select two switches to satellite second signal to rubidium clock carry out calibrating frequency and tame, tame after rubidium clock generate standard-frequency signal
It is worked all the way by the selection of the first single-pole double-throw switch (SPDT), is sent into the second single-pole double throw through the first clean up oscillator all the way and opens
It closes, another way is sent into the second single-pole double-throw switch (SPDT) by the 2nd clean up oscillator, which signal work no matter is selected,
Amplification output unit C is sent to by the second single-pole double-throw switch (SPDT).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610596267.0A CN106301363B (en) | 2016-07-26 | 2016-07-26 | A variety of difference source frequency output equipments |
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|---|---|---|---|
| CN201610596267.0A CN106301363B (en) | 2016-07-26 | 2016-07-26 | A variety of difference source frequency output equipments |
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| CN106301363A CN106301363A (en) | 2017-01-04 |
| CN106301363B true CN106301363B (en) | 2019-05-28 |
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| CN201610596267.0A Active CN106301363B (en) | 2016-07-26 | 2016-07-26 | A variety of difference source frequency output equipments |
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| CN108494401B (en) * | 2018-03-08 | 2020-07-10 | 山东大学 | Radio observation array and clock synchronization method |
Citations (3)
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|---|---|---|---|---|
| CN102147474A (en) * | 2010-12-21 | 2011-08-10 | 西安市双合软件技术有限公司 | Time frequency taming module based on global position system (GSP)/compass navigation satellite system (CNSS) |
| CN102339016A (en) * | 2011-05-09 | 2012-02-01 | 西安交通大学 | Backward diode/global positioning system (BD/GPS) dual-mode time service-based time synchronization device |
| CN104460312A (en) * | 2014-12-30 | 2015-03-25 | 四川九洲电器集团有限责任公司 | GPS and Big Dipper double-mode timing method and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050084047A1 (en) * | 2003-09-30 | 2005-04-21 | Seiko Epson Corporation | Clock signal correcting circuit and communicating apparatus |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147474A (en) * | 2010-12-21 | 2011-08-10 | 西安市双合软件技术有限公司 | Time frequency taming module based on global position system (GSP)/compass navigation satellite system (CNSS) |
| CN102339016A (en) * | 2011-05-09 | 2012-02-01 | 西安交通大学 | Backward diode/global positioning system (BD/GPS) dual-mode time service-based time synchronization device |
| CN104460312A (en) * | 2014-12-30 | 2015-03-25 | 四川九洲电器集团有限责任公司 | GPS and Big Dipper double-mode timing method and system |
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