CN207382320U - Portable radar signal calibration fibre optic transmission equipment - Google Patents
Portable radar signal calibration fibre optic transmission equipment Download PDFInfo
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- CN207382320U CN207382320U CN201721551679.9U CN201721551679U CN207382320U CN 207382320 U CN207382320 U CN 207382320U CN 201721551679 U CN201721551679 U CN 201721551679U CN 207382320 U CN207382320 U CN 207382320U
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Abstract
The utility model is related to signal transmission testing field, more particularly to portable radar signal calibration fibre optic transmission equipment.Compared with prior art, the utility model portable radar signal calibration fibre optic transmission equipment, mainly include microwave signal modulating equipment, fiber-optic signal demodulated equipment, different transmission paths is selected according to the radiofrequency signal of reception, based on microwave photon technology, utilize optical-fibre channel, the calibration of radar emission signal transmission, radar return signal calibration transmission and the realization of distance by radar calibration three zones are integrated in one, with low-loss, Electro Magnetic Compatibility is good, signal fidelity is high, stable working state, cruising time is long, the features such as being convenient for carrying.
Description
Technical field
The utility model is related to signal transmission testing fields, are passed more particularly to a kind of portable radar signal calibration optical fiber
Transfer device.
Background technology
At present, fire control radar equipment is required for carrying out self signal calibration in outfield before working, however aerial array and refers to
Workshop is controlled at a distance of the even upper km of rice up to a hundred, the electromagnetic environment of checkout area is again very complicated, and calibration signal is passing at a distance
It can be disturbed during defeated be subject to various factors, cause test result inaccurate, easy distortion, for the equipment workability of test
Can be unstable, loss is excessively high, and Electro Magnetic Compatibility is inadequate, and cruising time is short, and volume is big, not easy to operate.
Utility model content
Shortcoming in for the above-mentioned prior art, the utility model are intended to provide a kind of portable radar signal calibration
Fibre optic transmission equipment, based on microwave photon technology, using optical-fibre channel, by radar emission signal, radar return signal, radar away from
Be integrated in one from calibration function, realize low-loss, Electro Magnetic Compatibility is good, signal fidelity is high, the operation is stable, cruising time
It is long, easy to carry, easy-operating function.
To achieve the above object, the technical solution of the utility model：
Portable radar signal calibration fibre optic transmission equipment, including microwave signal modulating equipment, fiber-optic signal demodulated equipment,
The microwave signal modulating equipment is connected by optical cable with the fiber-optic signal demodulated equipment, wherein, the microwave signal modulation
Equipment is established by cable including rf inputs mouth, the first passband selecting unit, 1 × 2 electric switch of modulation, fader, modulation 2 × 1
It closes, electrical to optical converter, the fiber-optic signal demodulated equipment includes radio frequency output port, photoelectric converter, Attenuation adjustable device, demodulation
1 × 2 electric switch, the second passband selecting unit, 2 × 1 electric switches of demodulation.
The first passband selecting unit input terminal connects the rf inputs mouth, and the first passband selecting unit is defeated
Outlet connection 1 × 2 electric switch of the modulation, 1 × 2 electric switch of the modulation connect 2 × 1 electric switches of the modulation, gain respectively
Connection is established in adjuster input terminal, the fader output terminal connection 2 × 1 electric switches of the modulation, the modulation 2 × 1 by cable
The electrical to optical converter input terminal is connect, the electrical to optical converter connects the photoelectric converter, the opto-electronic conversion by optical cable
Device output terminal connection it is described demodulation 1 × 2 electric switch, it is described demodulation 1 × 2 electric switch connect respectively it is described demodulation 2 × 1 electric switches,
Attenuation adjustable device input terminal, the Attenuation adjustable device output terminal connection 2 × 1 electric switches of the demodulation, the demodulation 2 × 1 are established by cable
Connection connects the second passband selecting unit, and the second passband selecting unit output terminal connects the radio frequency output port.
The beneficial effects of the utility model：Compared with prior art, the utility model portable radar signal calibration optical fiber
The radar emission signal that the testing calibration signal of radar output or loudspeaker receive is amplified, is modulated after amplitude control by transmission equipment
It is transmitted for optical signal by optical fiber, equipment microwave signal gain controllable, there is band wave band passband selection function, it is outer to reduce band
Noise, long optical fibers propagation delay time Accurate Calibration, water, shock protection, the operation is stable.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
1- microwave signals modulating equipment in attached drawing；2- fiber-optic signal demodulated equipments；101- the first passband selecting units；102-
Fader；103- modulates 1 × 2 electric switch；104- modulates 2 × 1 electric switches；105- electricals to optical converter；201- opto-electronic conversions
Device；203- Attenuation adjustable devices；204- demodulates 1 × 2 electric switch；205- demodulates 2 × 1 electric switches；206- the second passband selecting units.
Specific embodiment
The utility model is further described with reference to specific embodiment and attached drawing.
As shown in the figure, the utility model portable radar calibration signal transmission by optical fiber equipment, sets including microwave signal modulation
Standby 1, fiber-optic signal demodulated equipment 2, the microwave signal modulating equipment 1 are connected by optical cable and the fiber-optic signal demodulated equipment 2
It connects, wherein, the microwave signal modulating equipment 1 includes rf inputs mouth, the first passband selecting unit 101,1 × 2 electricity of modulation
Switch 103, fader 102,2 × 1 electric switches 104 of modulation, electrical to optical converter 105, the fiber-optic signal demodulated equipment 2 wrap
Include radio frequency output port, photoelectric converter 201, Attenuation adjustable device 203,1 × 2 electric switch 204 of demodulation, the second passband selecting unit
206th, 2 × 1 electric switches 205 are demodulated.
First passband selecting unit, 101 input terminal connects the rf inputs mouth, which is used to receive radar
The signal of transmission or far field test loudspeaker received signal, 101 output terminal of the first passband selecting unit connect the modulation
1 × 2 electric switch 103,1 × 2 electric switch 103 of the modulation connect 2 × 1 electric switches 104 of the modulation, fader respectively
102 input terminals, 102 output terminal of the fader connection, 2 × 1 electric switches 104 of the modulation, are respectively formed chain as shown in the figure
Lu Yi, link two, 2 × 1 electric switches 104 of the modulation connect 105 input terminal of electrical to optical converter, the electrical to optical converter
105 connect the photoelectric converter 201 by optical cable, and 201 output terminal of the photoelectric converter connection demodulation 1 × 2 is established by cable
204 are closed, 1 × 2 electric switch 204 of the demodulation connects 2 × 1 electric switches 205 of the demodulation, 203 input terminal of Attenuation adjustable device respectively,
203 output terminal of the Attenuation adjustable device connection, 2 × 1 electric switches 205 of the demodulation, are respectively formed link three, link as shown in the figure
Four, 2 × 1 electric switches 205 of the demodulation connect the second passband selecting unit 206, and the second passband selecting unit 206 is defeated
Outlet connects the radio frequency output port.
Specifically, being connected between each link by mating optical, optical fiber is band protection armored fiber optic, and length can configure self-defined
It continues.
Specifically, the photoelectric converter 201 is integrated with amplifier 202.
Specifically, the microwave signal modulating equipment 1 further includes modulation power supply unit 106, modulation display control unit
107, the modulation power supply unit 106 external power supply switch, the modulation display control unit 107 connects the fader
102, the modulation display control unit 107 is equipped with regulation button.
Specifically, the fiber-optic signal demodulated equipment 2 further includes demodulation power supply unit 207, demodulation display control unit
208, demodulation power supply unit 207 external power supply switch, the demodulation display control unit 208 connects the Attenuation adjustable device 203,
The demodulation display control unit 208 is equipped with regulation button.
Specifically, when working condition link 1.+4. when, at this time into microwave signal modulating equipment 1 radiofrequency signal about+
10dBm (is not more than+20dBm), therefore can be directly entered electrical to optical converter 105 and carry out electro-optic conversion, transformed modulation light letter
The injection fibre signal demodulating apparatus 2 number after optical cable transmission, in fiber-optic signal demodulated equipment 2, photoelectric converter 201 is first
Modulated optical signal is demodulated, subsequently into amplifier carry out Amplitude Compensation, it is compensated after radiofrequency signal compared with microwave signal
The Injection Signal difference about 0dB of modulating equipment 1, this radiofrequency signal subsequently enter Attenuation adjustable device 203 carry out gain-adjusted after it is defeated
Go out, the adjustable extent 6 (64dB) of Attenuation adjustable device 203, stepping 1dB.
When working condition link 2.+3. when, into microwave signal modulating equipment 1 radiofrequency signal for small-signal, therefore
It being introduced into fader 102 and carries out Amplitude Compensation, the signal after compensation enters electrical to optical converter 105 and carries out electro-optic conversion,
Passing through optical cable transmission injection fibre signal demodulating apparatus 2, in fiber-optic signal demodulated equipment 2, photoelectric converter 201 first will
Modulated optical signal demodulates, and carries out Amplitude Compensation subsequently into amplifier, is exported by switching network.
When working condition link 1.+3. when, into microwave signal modulating equipment 1 radiofrequency signal be directly entered electric light turn
Parallel operation 105 carries out electro-optic conversion, and transformed modulated optical signal is through optical cable transmission injection fibre signal demodulating apparatus 2, in optical fiber
In signal demodulating apparatus 2, photoelectric converter 201 first demodulates modulated optical signal, and Amplitude Compensation is carried out subsequently into amplifier.
During entire calibration, should be respectively 150 meters to length, 200 meters, 3000 meters of three sections of optical cables are individually connected
Connect or be combined connection calibration.
Specifically, the portable radar calibration signal transmission by optical fiber equipment is based on microwave photon technology, using optical-fibre channel,
The calibration of radar emission signal transmission, radar return signal calibration transmission and the realization of distance by radar calibration three zones are combined in one
Body.Have the characteristics that low-loss, Electro Magnetic Compatibility are good, signal fidelity is high, the operation is stable, cruising time is long, it is convenient to carry.
The technical solution provided above the utility model embodiment is described in detail, used herein specifically
A example is set forth the principle and embodiment of the utility model embodiment, and the explanation of above example is only applicable to help
Assistant solves the principle of the utility model embodiment；Meanwhile for those of ordinary skill in the art, implement according to the utility model
Example, the there will be changes in specific embodiment and application range, in conclusion this specification content should not be construed as
Limitation to the utility model.
Claims (4)
1. portable radar signal calibration fibre optic transmission equipment, which is characterized in that including microwave signal modulating equipment (1), optical fiber
Signal demodulating apparatus (2), the microwave signal modulating equipment (1) are connected by optical cable with the fiber-optic signal demodulated equipment (2),
Wherein, the microwave signal modulating equipment (1) includes rf inputs mouth, the first passband selecting unit (101), 1 × 2 electricity of modulation
Switch (103), fader (102), 2 × 1 electric switches of modulation (104), electrical to optical converter (105), the fiber-optic signal solution
Equipment (2) is adjusted to include radio frequency output port, photoelectric converter (201), Attenuation adjustable device (203), 1 × 2 electric switch of demodulation
(204), the second passband selecting unit (206), 2 × 1 electric switches of demodulation (205)；
First passband selecting unit (101) input terminal connects the rf inputs mouth, the first passband selecting unit
(101) output terminal connection 1 × 2 electric switch of the modulation (103), 1 × 2 electric switch of the modulation (103) connect the tune respectively
2 × 1 electric switches (104), fader (102) input terminal are made, fader (102) output terminal connects the modulation
2 × 1 electric switches (104), 2 × 1 electric switches of the modulation (104) connect electrical to optical converter (105) input terminal, the electric light
Converter (105) connects the photoelectric converter (201) by optical cable, described in photoelectric converter (201) the output terminal connection
1 × 2 electric switch (204) is demodulated, 1 × 2 electric switch of the demodulation (204) connects 2 × 1 electric switches of the demodulation (205), declines respectively
Subtract adjuster (203) input terminal, Attenuation adjustable device (203) output terminal connection 2 × 1 electric switches of the demodulation (205) are described
It demodulates 2 × 1 electric switches (205) and connects the second passband selecting unit (206), the second passband selecting unit (206) is defeated
Outlet connects the radio frequency output port.
2. portable radar signal calibration fibre optic transmission equipment as described in claim 1, which is characterized in that the opto-electronic conversion
Device (201) is integrated with amplifier (202).
3. portable radar signal calibration fibre optic transmission equipment as described in claim 1, which is characterized in that the microwave signal
Modulating equipment (1) further includes modulation power supply unit (106), modulation display control unit (107), the modulation power supply unit
(106) external power supply switchs, and the modulation display control unit (107) connects the fader (102), and the modulation is aobvious
Show that control unit (107) is equipped with regulation button.
4. portable radar signal calibration fibre optic transmission equipment as described in claim 1, which is characterized in that the fiber-optic signal
Demodulated equipment (2) further includes demodulation power supply unit (207), demodulation display control unit (208), and demodulation power supply unit (207) is outside
Power switch is connect, the demodulation display control unit (208) connects the Attenuation adjustable device (203), the demodulation display control
Unit (208) is equipped with regulation button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551679.9U CN207382320U (en) | 2017-11-17 | 2017-11-17 | Portable radar signal calibration fibre optic transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551679.9U CN207382320U (en) | 2017-11-17 | 2017-11-17 | Portable radar signal calibration fibre optic transmission equipment |
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| Publication Number | Publication Date |
|---|---|
| CN207382320U true CN207382320U (en) | 2018-05-18 |
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ID=62333397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721551679.9U Active CN207382320U (en) | 2017-11-17 | 2017-11-17 | Portable radar signal calibration fibre optic transmission equipment |
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| CN (1) | CN207382320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093157A (en) * | 2021-04-02 | 2021-07-09 | 中国电子科技集团公司第三十八研究所 | Distributed receiving array channel error calibration method and system based on microwave photon phase-stabilized transmission link |
-
2017
- 2017-11-17 CN CN201721551679.9U patent/CN207382320U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093157A (en) * | 2021-04-02 | 2021-07-09 | 中国电子科技集团公司第三十八研究所 | Distributed receiving array channel error calibration method and system based on microwave photon phase-stabilized transmission link |
| CN113093157B (en) * | 2021-04-02 | 2023-10-03 | 中国电子科技集团公司第三十八研究所 | Distributed receiving array channel error calibration method and system based on microwave photon steady-phase transmission link |
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