CN205787102U - A kind of phased array radar system converter unit - Google Patents
A kind of phased array radar system converter unit Download PDFInfo
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- CN205787102U CN205787102U CN201620633806.9U CN201620633806U CN205787102U CN 205787102 U CN205787102 U CN 205787102U CN 201620633806 U CN201620633806 U CN 201620633806U CN 205787102 U CN205787102 U CN 205787102U
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Abstract
The utility model discloses a kind of phased array radar system converter unit, including horizontal polarization up-conversion link, horizontal polarization down coversion link, vertical polarization up-conversion link, vertical polarization down coversion link, it is characterized in that, also include controller, directional coupler and switch matrix unit, adding directional coupler, switch matrix on the basis of traditional phased array radar system converter unit, wherein directional coupler realizes the output sampling to radar upconverting unit and down-converter unit calibration signal injects；Switch matrix is respectively level and vertical polarization chain calibration process and provides common return, and little to realize radar system horizontal polarization, vertical polarization link frequency conversion relative error, accuracy is high, prover time is short.
Description
Technical field
This utility model relates to field of radar, particularly a kind of phased array radar system converter unit.
Background technology
In dual polarization phased array radar system, owing to system works between horizontal polarization, vertical polarization converter unit
Phase and amplitude relative error have strict requirements, therefore phased array radar system produces, needs level in work process
Phase and amplitude error between polarization, vertical polarization link converter unit carries out accurate calibration, and calibration process is complicated, time-consuming
Long.In traditional phased array radar system, owing to there is not public measure loop in converter unit, it is impossible to realizes level pole
Relative error calibration between change, vertical polarization link converter unit, can only be in production process by manually realizing disposable school
Standard, the error that radar system in use occurs, it is impossible to realize in real time, automatically calibrate.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, this utility model provides that a kind of accuracy is high, prover time is short
Phased array radar system converter unit.
This utility model solves the technical scheme that its technical problem used:
A kind of phased array radar system converter unit, including horizontal polarization up-conversion link, horizontal polarization down coversion link,
Vertical polarization up-conversion link, vertical polarization down coversion link, it is characterised in that also include controller, directional coupler unit
With switch matrix unit, described controller is defeated with horizontal polarization up-conversion link input, horizontal polarization down coversion link respectively
Go out end, vertical polarization up-conversion link input and vertical polarization down coversion link output to connect, described horizontal polarization becomes
Frequency link outfan and vertical polarization up-conversion link output are by directional coupler unit with switch matrix unit one end even
Connect, described horizontal polarization down coversion link input and vertical polarization down coversion link input by directional coupler unit with
The switch matrix unit other end connects.
As the further improvement of such scheme, described switch matrix unit includes the first switch and second switch, described
First switch one end is respectively by directional coupler unit and horizontal polarization up-conversion link output and vertical polarization up-conversion
Link output connection, the described first switch other end and second switch one end connect, and the other end of described second switch is respectively
It is connected with horizontal polarization down coversion link input and vertical polarization down coversion link input by directional coupler unit.
As the further improvement of such scheme, described directional coupler unit includes the first directional coupler, second fixed
To bonder, the 3rd directional coupler and the 4th directional coupler, described first directional coupler and horizontal polarization up-conversion chain
Road outfan connects, and described second directional coupler is connected with horizontal polarization down coversion link input, described 3rd orientation coupling
Clutch is connected with vertical polarization up-conversion link output, and described 4th directional coupler inputs with vertical polarization down coversion link
End connects.
As the further improvement of such scheme, described horizontal polarization up-conversion link includes the first filtering being sequentially connected with
Device, the first frequency mixer, the first amplifier, the second wave filter, the second amplifier, the 3rd wave filter, the second frequency mixer, the 3rd amplification
Device, the 4th wave filter, the 4th amplifier and isolator, horizontal polarization up-conversion link and vertical polarization up-conversion link, described
Horizontal polarization up-conversion link structure is identical with vertical polarization up-conversion link structure.
As the further improvement of such scheme, described horizontal polarization down coversion link and vertical polarization down coversion link are all
Including the first amplifier being sequentially connected with, the first wave filter, the first frequency mixer, the second wave filter, the second amplifier, the 3rd filtering
Device, the 3rd amplifier, the second frequency mixer, the 4th wave filter, variable gain amplifier and the 5th wave filter, under described horizontal polarization
Frequency conversion link structure is identical with vertical polarization down-conversion chain line structure.
The beneficial effects of the utility model have:
This utility model one phased array radar system converter unit, at traditional phased array radar system converter unit base
Add directional coupler, switch matrix on plinth, wherein directional coupler realize the output to radar upconverting unit sample with
And down-converter unit calibration signal injects；Switch matrix is respectively level and provides public time with vertical polarization chain calibration process
Road, little to realize radar system horizontal polarization, vertical polarization link frequency conversion relative error, accuracy is high, prover time is short.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail, wherein:
Fig. 1 is the converter unit structured flowchart of this utility model embodiment；
Fig. 2 is the converter unit structure principle chart of this utility model embodiment；
Fig. 3 is that the converter unit up-conversion of this utility model embodiment calibrates for error Principle of Process figure；
Fig. 4 is the converter unit down-conversion error calibration process schematic diagram of this utility model embodiment.
Detailed description of the invention
With reference to Fig. 1 and Fig. 2, a kind of phased array radar system converter unit, including horizontal polarization up-conversion link 4, level
Polarization down coversion link 5, vertical polarization up-conversion link 6, vertical polarization down coversion link 7, it is characterised in that also include controlling
Device 1, directional coupler unit 2 and switch matrix unit 3, described controller 1 inputs with horizontal polarization up-conversion link 4 respectively
End, horizontal polarization down coversion link 5 outfan, vertical polarization up-conversion link 6 input and vertical polarization down coversion link 7 are defeated
Going out end to connect, described horizontal polarization up-conversion link 4 outfan and vertical polarization up-conversion link 6 outfan pass through directional couple
Device unit 2 is connected with switch matrix unit 3 one end, described horizontal polarization down coversion link 5 input and vertical polarization down coversion
Link input 7 is connected with switch matrix unit 3 other end by directional coupler unit 2.
Described switch matrix unit 3 includes that the first switch 31 and second switch 32, described first switch 31 one end lead to respectively
Cross directional coupler unit 2 be connected with horizontal polarization up-conversion link 4 outfan and vertical polarization up-conversion link 6 outfan,
Described first switch 31 other ends and second switch 32 one end connect, and the other end of described second switch 32 is respectively by orientation coupling
Clutch unit 2 is connected with horizontal polarization down coversion link input 5 and vertical polarization down coversion link 7 input.
Described directional coupler unit 2 includes first directional coupler the 21, second directional coupler the 22, the 3rd directional couple
Device 23 and the 4th directional coupler 24, described first directional coupler 21 is connected with horizontal polarization up-conversion link 4 outfan, institute
Stating the second directional coupler 22 to be connected with horizontal polarization down coversion link 5 input, described 3rd directional coupler 23 is with vertical
Polarization up-conversion link 6 outfan connects, and described 4th directional coupler 24 is with vertical polarization down coversion link 7 input even
Connect.
Described horizontal polarization up-conversion link 4 includes first wave filter the 41, first frequency mixer 42 being sequentially connected with, first puts
Big device the 43, second wave filter the 44, second amplifier the 45, the 3rd wave filter the 46, second frequency mixer the 47, the 3rd amplifier the 48, the 4th
Wave filter the 49, the 4th amplifier 410 and isolator 411, described horizontal polarization up-conversion link structure and vertical polarization up-conversion
Link structure is identical.First amplifier the 51, first wave filter 52 that described horizontal polarization down coversion link 5 includes being sequentially connected with,
First frequency mixer the 53, second wave filter the 54, second amplifier the 55, the 3rd wave filter the 56, the 3rd amplifier the 57, second frequency mixer
58, the 4th wave filter 59, variable gain amplifier 510 and the 5th wave filter 511, described horizontal polarization down coversion link 5 structure
Identical with vertical polarization down coversion link 7 structure.Described directional coupler unit 2 degree of coupling is 20dB, and performance is good, does not affect change
Frequently cell operation.
With further reference to Fig. 3, the signal flow during calibration of horizontal polarization, vertical polarization up-conversion link error: horizontal polarization
Intermediate-freuqncy signal enters horizontal up-conversion link by horizontal polarization up-conversion link TH IN, mixes through the first wave filter 41, first
Frequently device the 42, first amplifier the 43, second wave filter the 44, second amplifier the 45, the 3rd wave filter the 46, second frequency mixer the 47, the 3rd
After amplifier the 48, the 4th wave filter the 49, the 4th amplifier 410 and isolator 411, it is connected to next stage list by radio frequency connector
Unit；Vertical polarization intermediate-freuqncy signal enters horizontal up-conversion link by vertical polarization up-conversion link TV IN, through the first filtering
Device, the first frequency mixer, the first amplifier, the second wave filter, the second amplifier, the 3rd wave filter, the second frequency mixer, the 3rd amplification
After device, the 4th wave filter, the 4th amplifier and isolator, it is connected to next stage unit by radio frequency connector, in horizontal polarization
Frequency conversion link TH IN port levels polarization intermediate-freuqncy signal is come with vertical polarization up-conversion link TV IN vertical polarization intermediate-freuqncy signal
From identical fpga chip, therefore amplitude between input signal, phase place relative error are for determining value, before chip can be had to carry out
Phase calibrates.
When calibrating for error, horizontal polarization up-conversion output port TH OUT sampled signal is connected by system control switch matrix
To horizontal polarization down coversion input RH IN20dB the first directional coupler 21, using horizontal polarization down coversion link as public
Return link, is back to receive demodulating system, detects that horizontal polarization launches the amplitude of signal, phase value；Then switch is controlled
Vertical polarization up-conversion output port TV OUT sampled signal is connected to horizontal polarization down coversion input RH IN20dB by matrix
3rd directional coupler 23, is back to demodulating system through identical public return path, detects that vertical polarization up-conversion is believed
Number amplitude, phase value.The horizontal polarization that comparison level polarization obtains with the amplitude of vertical polarization up-conversion signal and phase place with
Amplitude between vertical polarization up-conversion link, phase place relative error.Owing to horizontal polarization, vertical polarization up-conversion calibrate for error
System uses identical sampling, return link, and the relative error therefore obtained has the highest accuracy.
Converter unit horizontal link, vertical link down-conversion error calibration process, as shown in Figure 4, horizontal polarization, vertical pole
Change link and receive error process: down coversion chain calibration uses horizontal polarization up-conversion link output sampled signal as public affairs
Calibrate signal altogether；Make common calibration signal through switch matrix, the 3rd directional coupler Injection Level polarization down coversion input
Mouth RH IN enters down coversion link, and common calibration signal is mixed through orientation first amplifier the 51, first wave filter 52, first
Device the 53, second wave filter the 54, second amplifier the 55, the 3rd wave filter the 56, the 3rd amplifier the 57, second frequency mixer the 58, the 4th is filtered
Ripple device 59, variable gain amplifier 510 and the 5th wave filter 511, enter common demodulation system, and demodulation detects calibration signal warp
Cross the amplitude after horizontal polarization down coversion link, phase value；By software control, make common calibration signal through switch matrix,
4th directional coupler injects vertical polarization down coversion input port RV IN and enters down coversion link, and common calibration signal passes through
First amplifier, the first wave filter, the first frequency mixer, the second wave filter, the second amplifier, the 3rd wave filter, the 3rd amplifier,
After second frequency mixer, the 4th wave filter, variable gain amplifier and the 5th wave filter, enter common demodulation system, demodulation detection
Go out to calibrate signal amplitude after vertical polarization down coversion link, phase value；Horizontal polarization after relatively demodulating, vertical polarization
The amplitude of down coversion link, phase value, obtain horizontal polarization link, the relative error of vertical polarization link amplitude-phase.
The above, better embodiment the most of the present utility model, but this utility model is not limited to above-mentioned reality
Execute example, as long as it reaches technique effect of the present utility model with any same or similar means, all should belong to of the present utility model
Protection domain.
Claims (5)
1. a phased array radar system converter unit, including horizontal polarization up-conversion link (4), horizontal polarization down coversion link
(5), vertical polarization up-conversion link (6), vertical polarization down coversion link (7), it is characterised in that also include controller (1), determine
To coupler unit (2) and switch matrix unit (3), described controller (1) inputs with horizontal polarization up-conversion link (4) respectively
End, horizontal polarization down coversion link (5) outfan, vertical polarization up-conversion link (6) input and vertical polarization down-conversion chain
Road (7) outfan connects, described horizontal polarization up-conversion link (4) outfan and vertical polarization up-conversion link (6) outfan
Being connected with switch matrix unit (3) one end by directional coupler unit (2), described horizontal polarization down coversion link (5) inputs
End and vertical polarization down coversion link (7) input are by directional coupler unit (2) with switch matrix unit (3) other end even
Connect.
A kind of phased array radar system converter unit the most according to claim 1, it is characterised in that: described switch matrix list
Unit (3) includes the first switch (31) and second switch (32), and described first switch (31) one end is respectively by directional coupler list
Unit (2) be connected with horizontal polarization up-conversion link (4) outfan and vertical polarization up-conversion link (6) outfan, described first
Switch (31) other end and second switch (32) one end connect, and the other end of described second switch (32) passes through directional couple respectively
Device unit (2) is connected with horizontal polarization down coversion link (5) input and vertical polarization down coversion link (7) input.
A kind of phased array radar system converter unit the most according to claim 1, it is characterised in that: described directional coupler
Unit (2) includes the first directional coupler (21), the second directional coupler (22), the 3rd directional coupler (23) and the 4th orientation
Bonder (24), described first directional coupler (21) is connected with horizontal polarization up-conversion link (4) outfan, and described second is fixed
It is connected with horizontal polarization down coversion link (5) input to bonder (22), described 3rd directional coupler (23) and vertical pole
Change up-conversion link (6) outfan to connect, described 4th directional coupler (24) and vertical polarization down coversion link (7) input
Connect.
A kind of phased array radar system converter unit the most according to claim 1, it is characterised in that: in described horizontal polarization
The first wave filter (41) that frequency conversion link (4) includes being sequentially connected with, the first frequency mixer (42), the first amplifier (43), the second filter
Ripple device (44), the second amplifier (45), the 3rd wave filter (46), the second frequency mixer (47), the 3rd amplifier (48), the 4th filtering
Device (49), the 4th amplifier (410) and isolator (411), described horizontal polarization up-conversion link structure and vertical polarization become
Frequency link structure is identical.
A kind of phased array radar system converter unit the most according to claim 1, it is characterised in that: under described horizontal polarization
The first amplifier (51) that frequency conversion link (5) includes being sequentially connected with, the first wave filter (52), the first frequency mixer (53), the second filter
Ripple device (54), the second amplifier (55), the 3rd wave filter (56), the 3rd amplifier (57), the second frequency mixer (58), the 4th filtering
Device (59), variable gain amplifier (510) and the 5th wave filter (511), described horizontal polarization down coversion link (5) structure is with vertical
Straight polarization down coversion link (7) structure is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620633806.9U CN205787102U (en) | 2016-06-21 | 2016-06-21 | A kind of phased array radar system converter unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620633806.9U CN205787102U (en) | 2016-06-21 | 2016-06-21 | A kind of phased array radar system converter unit |
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| Publication Number | Publication Date |
|---|---|
| CN205787102U true CN205787102U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620633806.9U Active CN205787102U (en) | 2016-06-21 | 2016-06-21 | A kind of phased array radar system converter unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066474A (en) * | 2016-06-21 | 2016-11-02 | 珠海纳睿达科技有限公司 | A kind of phased array radar system converter unit and error calibrating method thereof |
| CN112311427A (en) * | 2020-11-18 | 2021-02-02 | 成都迅翼卫通科技有限公司 | Satellite communication receiving and transmitting polarization switching control device |
-
2016
- 2016-06-21 CN CN201620633806.9U patent/CN205787102U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066474A (en) * | 2016-06-21 | 2016-11-02 | 珠海纳睿达科技有限公司 | A kind of phased array radar system converter unit and error calibrating method thereof |
| CN106066474B (en) * | 2016-06-21 | 2018-11-09 | 珠海纳睿达科技有限公司 | A kind of phased array radar system converter unit and its error calibrating method |
| CN112311427A (en) * | 2020-11-18 | 2021-02-02 | 成都迅翼卫通科技有限公司 | Satellite communication receiving and transmitting polarization switching control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" |
Address after: No.2 Gangle Road, Tangjiawan Town, Zhuhai City, Guangdong Province 519080 Patentee after: Guangdong Narui Radar Technology Co.,Ltd. Address before: 519080 unit n, room 607, 6th floor, main building, No.10, Keji 1st Road, Gangwan Avenue, Tangjiawan Town, Zhuhai City, Guangdong Province Patentee before: Zhuhai Naruida Technology Co.,Ltd. |
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| CP03 | "change of name, title or address" |