CN205861892U - A kind of phased array radar system Transmit-Receive Unit - Google Patents
A kind of phased array radar system Transmit-Receive Unit Download PDFInfo
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- CN205861892U CN205861892U CN201620632992.4U CN201620632992U CN205861892U CN 205861892 U CN205861892 U CN 205861892U CN 201620632992 U CN201620632992 U CN 201620632992U CN 205861892 U CN205861892 U CN 205861892U
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- switch
- link
- unit
- directional coupler
- horizontal polarization
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Abstract
The utility model discloses a kind of phased array radar system Transmit-Receive Unit, including horizontal polarization link, vertical polarization link, it is characterized in that, also include controller, directional coupler and open matrix unit, directional coupler is added on the basis of traditional phased array radar system Transmit-Receive Unit, and switch matrix, wherein directional coupler realizes the sampling to radar emission signal and receives calibration signal injection；Switch matrix provides common return for level and vertical polarization chain calibration process, little with vertical polarization chain calibration error to realize radar system horizontal polarization, and accuracy is high, the time is short.
Description
Technical field
This utility model relates to field of radar, particularly a kind of phased array radar system Transmit-Receive Unit.
Background technology
In dual polarization phased array radar system, owing to system work is received and dispatched between horizontal polarization, vertical polarization link
The phase and amplitude relative error of signal has the highest requirement, therefore needs each in phased array radar system production process
Phase and amplitude error between Transmit-Receive Unit horizontal polarization, vertical polarization link carries out accurate calibration, and calibration process is complicated, consumption
Duration.In traditional phased array radar system, owing to there is not public measure loop, it is impossible to realize horizontal horizontal polarization chain
Relative error calibration between road and vertical polarization link, can only realize disposable calibration, radar in production process by artificial
The error that system in use occurs, it is impossible to realize in real time, automatically calibrate.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, it is phased that this utility model provides that a kind of accuracy is high, the time is short
Battle array radar system Transmit-Receive Unit.
This utility model solves the technical scheme that its technical problem used:
A kind of phased array radar system Transmit-Receive Unit, including horizontal polarization link, vertical polarization link, described horizontal polarization
Link includes that horizontal polarization transmitting chain and horizontal polarization receive link, and described vertical polarization link includes that vertical polarization launches chain
Road and vertical polarization receive link, it is characterised in that also include controller, directional coupler unit, switch matrix unit, described
Controller receives link output RH OUT, vertical polarization with horizontal polarization transmitting chain input TH IN, horizontal polarization respectively
Transmitting chain input TV IN, vertical polarization receive link output RV OUT and switch matrix unit connects, described level pole
Change link and vertical polarization link one end is connected with switch matrix unit by directional coupler unit respectively, described switch matrix
Unit is connected with horizontal polarization link and the vertical polarization link other end respectively.
As the further improvement of such scheme, described switch matrix unit includes the first switch, second switch, the 3rd opens
Pass, the 4th switch, the 5th switch, the 6th switch, the 7th switch and the 8th switch, and described first switch one end is sent out with horizontal polarization
Penetrating link input TH IN to connect, described second switch one end receives link output RH OUT with horizontal polarization and is connected, described
3rd switch one end is connected with vertical polarization transmitting chain input TV IN, and described 4th switch one end receives with vertical polarization
Link output connects RV OUT, described 5th switch one end respectively with the first switch other end, the second switch other end and the
Seven switch one end connect, and described 6th switch one end switchs the other end, the 4th switch other end and the 8th switch respectively with the 3rd
One end connects, and described controller switchs one end with first switch one end, second switch one end, the 3rd switch one end and the 4th respectively
Connecting, described first switch, the 5th switch and the 7th switch form public return link.
As the further improvement of such scheme, described directional coupler unit includes that the first directional coupler and second is determined
To bonder, described directional coupler unit is provided with coupled end and isolation end, and the described 7th switch other end is respectively with first
The coupled end of directional coupler and the second directional coupler connects, the described 8th switch other end respectively with the first directional coupler
Connect with the isolation end of the second directional coupler.
As the further improvement of such scheme, described horizontal polarization link include the 9th switch, numerical-control attenuator, first
Radio frequency amplifier, digital phase shifter, the tenth switch, the first amplifier unit, the 11st switch and the second amplifier unit, described
11st switch one end successively with the first amplifier unit input, the 9th switch, numerical-control attenuator, the first radio frequency amplifier,
Digital phase shifter, the tenth switch, the second amplifier unit input connect, the described 11 switch other end and the first directional couple
Device connects, and described vertical polarization link structure is identical with horizontal polarization link.
The beneficial effects of the utility model have:
This utility model one phased array radar system Transmit-Receive Unit, at traditional phased array radar system Transmit-Receive Unit base
Directional coupler, and switch matrix is added on plinth.Wherein directional coupler realize the sampling of radar emission signal and
Receive calibration signal to inject；Switch matrix provides common return for level with vertical polarization chain calibration process, to realize radar
System level polarization is little with vertical polarization chain calibration error, and accuracy is high, the 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 Transmit-Receive Unit structured flowchart of this utility model embodiment；
Fig. 2 is the Transmit-Receive Unit structure principle chart of this utility model embodiment；
Fig. 3 is the Transmit-Receive Unit transmission error calibration process schematic diagram of this utility model embodiment；
Fig. 4 is that the Transmit-Receive Unit of this utility model embodiment receives the Principle of Process figure that calibrates for error.
Detailed description of the invention
With reference to Fig. 1 and Fig. 2, a kind of phased array radar system Transmit-Receive Unit, including horizontal polarization link 4, vertical polarization chain
Road 5, described horizontal polarization link 4 includes that horizontal polarization transmitting chain and horizontal polarization receive link, described vertical polarization link 5
Link is received, it is characterised in that also include controller 1, directional coupler list including vertical polarization transmitting chain and vertical polarization
Unit 2 and switch matrix unit 3, described controller 1 receives with horizontal polarization transmitting chain input TH IN, horizontal polarization respectively
Link output RH OUT, vertical polarization transmitting chain input TV IN, vertical polarization receive link output RV OUT and open
Close matrix unit 3 to connect, described horizontal polarization link 4 and vertical polarization link 5 one end respectively by directional coupler unit 2 with
Switch matrix unit 3 connects, and described switch matrix unit 3 connects with horizontal polarization link 4 and vertical polarization link 5 other end respectively
Connect.
Described switch matrix unit 3 includes the first switch 31, second switch the 32, the 3rd switch the 33, the 4th switch the 34, the 5th
Switch the 35, the 6th switch the 36, the 7th switch 37 and the 8th switch 38, described first switch 31 one end and horizontal polarization transmitting chain
Input TH IN connects, and described second switch 32 one end receives link output RH OUT with horizontal polarization and is connected, and the described 3rd
Switching 33 one end to be connected with vertical polarization transmitting chain input TV IN, described 4th switch 34 one end receive with vertical polarization
Link output connect RV OUT, described 5th switch 35 one end respectively with first switch 31 other ends, second switch 32 another
End and the 7th switch 37 one end connect, and described 6th switch 36 one end are 34 another with the 3rd switch 33 other ends, the 4th switch respectively
One end and the 8th switch 38 one end connect, described controller 1 respectively with first switch 31 one end, second switch 32 one end, the 3rd
Switching 33 one end and the 4th switch 34 one end to connect, described first switch the 31, the 5th switch 35 and the 7th switch 37 composition are public
Return link.
Described directional coupler unit 2 includes the first directional coupler 21 and the second directional coupler 21, described orientation coupling
Clutch unit 2 is provided with coupled end and isolation end, described 7th switch 37 other ends respectively with the first directional coupler 21 and the
The coupled end of two directional couplers 21 connects, and described 8th switch 38 other ends are fixed with the first directional coupler 21 and second respectively
Connect to the isolation end of bonder 22.Described horizontal polarization link 4 includes the 9th switch 41, numerical-control attenuator the 42, first radio frequency
Amplifier 43, digital phase shifter the 44, the tenth switch the 45, first amplifier unit the 46, the 11st switch 47 and the second amplifier list
Unit 48, described 11st switch 47 one end successively with the first amplifier unit 46 input, the 9th switch 41, numerical-control attenuator
42, the first radio frequency amplifier 43, digital phase shifter the 44, the tenth switch the 45, second amplifier unit 48 input connect, and described ten
One switch 47 other ends and the first directional coupler 21 connect, described vertical polarization link 5 structure and horizontal polarization link 4 phase
With.
With further reference to Fig. 3, signal flow when horizontal polarization, vertical polarization transmitting chain calibrate for error: horizontal polarization is believed
Number by horizontal polarization link input TH PORT enter horizontal polarization link, through the 9th switch 41, numerical-control attenuator 42,
First radio frequency amplifier 43, digital phase shifter the 44, the tenth switch the 45, the 11st switch 47 and the second amplifier unit 48, lead to afterwards
Crossing radio frequency connector and be connected to horizontally-polarized antenna, described second amplifier 48 includes the first amplifier and the second amplifier；Hang down
Straight polarized signal enters vertical polarization link by vertical polarization link input TV PORT, through switch, numerical-control attenuator,
Connected by radio frequency after radio frequency amplifier, digital phase shifter, switch, radio frequency amplifier, amplifier and switch and directional coupler
Device is connected to vertical polarized antenna.
In the present embodiment, controller uses fpga chip, TH PORT horizontal polarization signals to believe with TV PORT vertical polarization
Number from identical fpga chip, therefore amplitude between input signal, phase place relative error are for determining value, and chip can be had to enter
Row previous calibration.
When calibrating for error, first switch matrix is switched to horizontal polarization transmitting chain by system, by the first directional couple
Device 21 is sampled horizontal polarization link transmissions output signal, sampled signal through public return link (switch matrix and microstrip line or
Strip line) it is back to demodulating system, detect that horizontal polarization launches the amplitude of signal, phase value；Then control switch matrix to cut
Shift to vertical polarization transmitting chain, sampled vertical polarization link transmissions output signal by the first directional coupler 21, sampling letter
Number it is back to demodulating system through public return link (switch matrix and microstrip line or strip line), detects that vertical polarization is launched
The amplitude of signal, phase value.The horizontal polarization that comparison level polarization and vertical polarization launch the amplitude of signal and phase place obtains with
Amplitude between vertical polarization transmitting chain, phase place relative error.Transmission error calibrates the identical sampling of system employing, passback chain
Road, the relative error therefore obtained has the highest accuracy.
Transmit-Receive Unit horizontal link, vertical link receive the process that calibrates for error: as shown in Figure 4, vertical polarization link V
PORT, vertical polarization link H PORT connect vertical polarized antenna, horizontally-polarized antenna respectively.Horizontal polarization, vertical polarization chain
Road receives error process: common calibration signal enters Transmit-Receive Unit by TH PORT, makes common calibration signal through cubicle switchboard
Battle array, directional coupler Injection Level polarization reception link, common calibration signal amplifies through the second directional coupler 22-> first
Device unit the 46, the oneth the 9th switch 41, numerical-control attenuator the 42, first radio frequency amplifier 43, digital phase shifter the 44, the tenth switch
45, after the 11st switch 47-> RH PORT, described first amplifier unit 46 includes the first amplifier, the second amplifier and the
Three amplifiers, enter common demodulation system, and demodulation detects that horizontal polarization receives the amplitude of signal, phase value；Make common calibration
Signal injects vertical polarization link by switch matrix, the second directional coupler 22, common calibration signal through directional coupler-
> switch-> low-noise amplifier LNA-> amplifier-> amplifier-> switch-> numerical-control attenuator-> amplifier-> digital phase shifter-
> after switch-> RV PORT, entering common demodulation system, demodulation detects that vertical polarization receives the amplitude of signal, phase value；Ratio
Horizontal polarization after relatively demodulating, the amplitude of vertical polarization signal, phase value, obtain horizontal polarization link, vertical polarization link width
Degree, the relative error of phase place.
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 (4)
1. a phased array radar system Transmit-Receive Unit, including horizontal polarization link (4), vertical polarization link (5), described level
Polarization link (4) includes that horizontal polarization transmitting chain and horizontal polarization receive link, and described vertical polarization link (5) includes vertically
Polar transmitter link and vertical polarization receive link, it is characterised in that also include controller (1), directional coupler unit (2) and
Switch matrix unit (3), described controller (1) receives chain with horizontal polarization transmitting chain input TH IN, horizontal polarization respectively
Road outfan RH OUT, vertical polarization transmitting chain input TV IN, vertical polarization receive link output RV OUT and switch
Matrix unit (3) connects, and described horizontal polarization link (4) and vertical polarization link (5) one end are respectively by directional coupler list
Unit (2) be connected with switch matrix unit (3), described switch matrix unit (3) respectively with horizontal polarization link (4) and vertical polarization
Link (5) other end connects.
A kind of phased array radar system Transmit-Receive Unit the most according to claim 1, it is characterised in that: described switch matrix list
Unit (3) include the first switch (31), second switch (32), the 3rd switch (33), the 4th switch (34), the 5th switch (35), the
Six switches (36), the 7th switch (37) and the 8th switch (38), described first switch (31) one end and horizontal polarization transmitting chain
Input TH IN connects, and described second switch (32) one end and horizontal polarization reception link output RH OUT is connected, and described the
Three switch (33) one end are connected with vertical polarization transmitting chain input TV IN, described 4th switch (34) one end and vertical pole
Change receive link output connect RV OUT, described 5th switch (35) one end respectively with first switch (31) other end, second
Switch (32) other end and the 7th switch (37) one end connect, and described 6th switch (36) one end is another with the 3rd switch (33) respectively
One end, the 4th switch (34) other end and the 8th switch (38) one end connect, and described controller (1) switchs (31) with first respectively
One end, second switch (32) one end, the 3rd switch (33) one end and the 4th switch (34) one end connect, described first switch
(31), the 5th switch (35) and the 7th switch (37) form public return link.
A kind of phased array radar system Transmit-Receive Unit the most according to claim 2, it is characterised in that: described directional coupler
Unit (2) includes that the first directional coupler (21) and the second directional coupler (22), described directional coupler unit (2) are provided with
Coupled end and isolation end, described 7th switch (37) other end respectively with the first directional coupler (21) and the second directional coupler
(22) coupled end connects, described 8th switch (38) other end respectively with the first directional coupler (21) and the second directional couple
The isolation end of device (22) connects.
A kind of phased array radar system Transmit-Receive Unit the most according to claim 3, it is characterised in that: described horizontal polarization chain
Road (4) includes the 9th switch (41), numerical-control attenuator (42), the first radio frequency amplifier (43), digital phase shifter (44), the tenth opens
Close (45), the first amplifier unit (46), the 11st switch (47) and the second amplifier unit (48), described 11st switch
(47) one end is put with the first amplifier unit (46) input, the 9th switch (41), numerical-control attenuator (42), the first radio frequency successively
Big device (43), digital phase shifter (44), the tenth switch (45), the second amplifier unit (48) input connect, and described 11 open
Close (47) other end and the first directional coupler (21) connects, described vertical polarization link (5) structure and horizontal polarization link (4)
Structure is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632992.4U CN205861892U (en) | 2016-06-21 | 2016-06-21 | A kind of phased array radar system Transmit-Receive Unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632992.4U CN205861892U (en) | 2016-06-21 | 2016-06-21 | A kind of phased array radar system Transmit-Receive Unit |
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| CN205861892U true CN205861892U (en) | 2017-01-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974383A (en) * | 2016-06-21 | 2016-09-28 | 珠海纳睿达科技有限公司 | Phased array radar system transceiver unit and error calibration method thereof |
| CN107121675A (en) * | 2017-05-04 | 2017-09-01 | 成都猫道科技有限公司 | Long-range displacement measuring device, system and method with clutter recognition function |
| CN108390703A (en) * | 2018-01-25 | 2018-08-10 | 成都天锐星通科技有限公司 | A kind of multi-beam phased array antenna mechanism |
-
2016
- 2016-06-21 CN CN201620632992.4U patent/CN205861892U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974383A (en) * | 2016-06-21 | 2016-09-28 | 珠海纳睿达科技有限公司 | Phased array radar system transceiver unit and error calibration method thereof |
| CN105974383B (en) * | 2016-06-21 | 2018-07-03 | 珠海纳睿达科技有限公司 | A kind of phased array radar system Transmit-Receive Unit and its error calibrating method |
| CN107121675A (en) * | 2017-05-04 | 2017-09-01 | 成都猫道科技有限公司 | Long-range displacement measuring device, system and method with clutter recognition function |
| CN108390703A (en) * | 2018-01-25 | 2018-08-10 | 成都天锐星通科技有限公司 | A kind of multi-beam phased array antenna mechanism |
| CN108390703B (en) * | 2018-01-25 | 2021-02-19 | 成都天锐星通科技有限公司 | Multi-beam phased array antenna mechanism |
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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" |