CN105158768B - A kind of Waveguide slot array antenna means for correcting and bearing calibration - Google Patents
A kind of Waveguide slot array antenna means for correcting and bearing calibration Download PDFInfo
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- CN105158768B CN105158768B CN201510509282.2A CN201510509282A CN105158768B CN 105158768 B CN105158768 B CN 105158768B CN 201510509282 A CN201510509282 A CN 201510509282A CN 105158768 B CN105158768 B CN 105158768B
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- amplitude
- phase
- array antenna
- waveguide slot
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to antenna calibration field, more particularly to a kind of Waveguide slot array antenna means for correcting and bearing calibration.The present invention is by the correction in microwave dark room progress Waveguide slot array antenna system amplitude, phase, then by the data storage after correction in beam controlling system；Finally the beam controlling system debugged, Waveguide slot array antenna, T/R components and radio-frequency transmission line are arranged in Radar Products.Apparatus and method of the present invention can cancel the built-in corrective network of radar, alleviate the weight of radar, saved installing space.
Description
Technical field
The present invention relates to antenna calibration field, more particularly to a kind of waveguide gap array radar channel correcting device and correction
Method.
Background technology
Waveguide slot array antenna because of the characteristics of its processing is simple, structural strength is high, uniformity is preferable, power capacity is big,
Application in phased array radar is relatively broad.Using Waveguide slot array antenna as the phased-array radar of antenna, have
The features such as one-dimensional phase is swept, launching beam figuration, multiple target tracking, the basis of these features are each hair of One-dimension Phased Array radar
Penetrate with receiving channel can independent control amplitude and phase, and each channel amplitude and the preferable uniformity of phase are One-dimension Phased Arrays
Radar plays the important guarantee of these features.Due to the material of passage, processing in Practical Project and the inconsistency installed is assembled,
Each channel amplitude and phase is caused larger difference to be present so that the property of the phased-array radar based on Waveguide slot array antenna
It is able to not can ensure.
To ensure the performance of waveguide gap array phased-array radar wave beam performance, it is necessary to which amplitude and phase to passage are carried out
Correction, phased-array radar can use the method for built-in corrective network to be corrected system, and in certain special cases, it is not required to
To carry out real time correction to system, or in order to control system weight, system space it is limited can not built-in correction system situation
Descend, it is necessary to the amplitude-phase error correction for taking other means to enter row of channels.
The content of the invention
For the deficiency of background technology, the invention provides a kind of waveguide gap array radar channel correcting device and correction
Method, the present invention is by the correction in microwave dark room progress Waveguide slot array antenna system amplitude, phase, then by after correction
Data storage in beam controlling system；Finally by the beam controlling system debugged, Waveguide slot array antenna, T/R components and radio frequency
Transmission line is arranged in Radar Products.It can so alleviate the weight of radar to cancel the built-in corrective network of radar, save
Installing space.
Waveguide gap array radar system is solved in the case of without real time correction, radar system is carried out once
The problem of accurate calibration.
The technical scheme is that：A kind of Waveguide slot array antenna bearing calibration, trimming process is in microwave dark room
Correction, comprises the following steps：The correction of transmission channel amplitude-phase and the correction of receiving channel amplitude-phase；
The correction of transmission channel amplitude-phase comprises the following steps：Carried out using near-field test control vector network analyzer
The transmitting and reception of signal, gantry carry out position movement, while automatic control testing system data acquisition；
Transmission channel amplitude-phase correction signal flow be：Launch continuous wave signal, warp in vector network analyzer port
Launched after crossing power division network, T/R components and radio-frequency transmission line by Waveguide slot array antenna, T/R component transmission channels are set
The signal amplitude and phase put are desired value；Test probe receives the signal of Waveguide slot array antenna transmitting, by test electricity
Cable enters vector network analyzer port, and the amplitude and phase value that vector network analyzer port reception post-sampling obtains are test
Value；
Respectively the amplitude in test value and phase are carried out, from normalizing, then by the amplitude of desired value and phase certainly return
One, subtracted each other respectively with the amplitude from the test value after normalizing and phase using the amplitude from the desired value after normalizing and phase, obtained
Amplitude-phase to interchannel is poor, and the amplitude difference and phase difference are the amplitude and phase compensation value of system transmission channel, and will mend
Repay value to solidify in beam controlling system, be called as correction parameter；
The correction of receiving channel amplitude-phase comprises the following steps：Carried out using near-field test control vector network analyzer
The transmitting and reception of signal, gantry carry out position movement, while automatic control testing system data acquisition；
Receiving channel amplitude-phase correction signal flow be：Vector network analyzer launches continuous wave signal, after tested
Probe is launched, and is received by Waveguide slot array antenna, after T/R components receiving channel, radio-frequency transmission line, power division network
Signal reception is carried out by vector network analyzer；The amplitude and phase value that T/R components receiving channel is set are desired value, vector net
The amplitude and phase value that network analyzer reception post-sampling obtains are test value；
Respectively the amplitude in test value and phase are carried out, from normalizing, then by the amplitude of desired value and phase certainly return
One, subtracted each other respectively with the amplitude from the test value after normalizing and phase using the amplitude from the desired value after normalizing and phase, obtained
Amplitude-phase to interchannel is poor, and the amplitude difference and phase difference are the amplitude and phase compensation value of system receiving channel, and will mend
Repay value to solidify in beam controlling system, be called as correction parameter.
According to Waveguide slot array antenna bearing calibration as described above, it is characterised in that：Described test probe and ripple
Waveguide slot array antenna keeps vertical, and the spacing between test probe and Waveguide slot array antenna should be less than 3mm.
A kind of Waveguide slot array antenna means for correcting, including Waveguide slot array antenna (1), T/R components (2), work(point
Network (3), radio-frequency transmission line (4), test cable (5), test probe (6), beam controlling system, automatic control testing system, vector
Network Analyzer and scanning support；Waveguide slot array antenna (1) by radio-frequency transmission line (4) and T/R components (2) with being connected
Connect, T/R components (2) are attached with beam controlling system and power division network (3) respectively, power division network (3) by test cable (5) with
Vector network analyzer is attached, and vector network analyzer is connected by test cable (5) with test probe (6), its feature
It is：The transmitting of shown automatic control testing system control vector network analyzer and reception signal, while gantry
Movement it is synchronous with the transmitting reception of signal, on scanning support, scanning support can move up in platform for described test probe (6)
It is dynamic, and then realize the test one by one to Waveguide slot array antenna (1).
According to Waveguide slot array antenna means for correcting as described above, it is characterised in that：Described test probe (6) with
Waveguide slot array antenna (1) keeps vertical, and the spacing between test probe (6) and Waveguide slot array antenna (1) should be less than
3mm。
The beneficial effects of the invention are as follows：Real time correction and nothing need not carried out by solving waveguide gap array radar system
Built in method during correction system, the quick school of amplitude-phase uniformity of radar system passage is carried out using microwave dark room test system
Just.
Brief description of the drawings
Fig. 1 is that the system of waveguide gap array radar darkroom method for quickly correcting forms；
Fig. 2 is transmitting correcting process figure；
Fig. 3 is reception correcting process figure.
Embodiment
Description of reference numerals：1-Waveguide slot array antenna, 2-T/R components, 3-power division network, 4-radio frequency transmission
Line, 5-test cable, 6-test probe.
Below in conjunction with accompanying drawing, the present invention is described further.
As shown in figure 1, a kind of Waveguide slot array antenna Quick correction device of the present invention includes waveguide gap array day
Line 1, T/R components 2, power division network 3, radio-frequency transmission line 4, test cable 5, test probe 6, beam controlling system, automatically control test
System, vector network analyzer and scanning support.Test probe 6 is on scanning support, and scanning support can move on platform, Jin Ershi
Now to Waveguide slot array antenna 1 by each test.The Waveguide slot array antenna means for correcting of the present invention enters in microwave dark room
The correction of row system amplitude, phase, the data storage after correction is in beam controlling system；Then by the beam controlling system debugged, ripple
Waveguide slot array antenna 1, T/R components 2 and radio-frequency transmission line 4 are arranged in Radar Products, so just cancel the built-in school of radar
Positive network, the weight of radar is alleviated, has saved installing space.
Such as Fig. 1, Waveguide slot array antenna darkroom bearing calibration of the invention, its specific method is waveguide gap array
Antenna 1 is attached by radio-frequency transmission line 4 and T/R components 2, and beam controlling system is used for controlling the amplitude and phase of T/R components 2
Value, signal is carried out power division network 3 into work(point and synthesis, vector network analyzer connect power division network 3 respectively by test cable 5
With test probe 6, automatic control testing system control vector network analyzer transmitting and reception signal, while gantry
Movement is synchronous with the transmitting reception of signal.The coupling of adjacent antenna energy when being tested to reduce, test probe 6 are stitched from waveguide
The optical waveguide probe of gap antenna same lumen size, by taking Ku wave band Waveguide slot phased arrays as an example, antenna uses BJ-180 standard ripples
Design processing is led, then test probe also answers BJ-180 standard waveguide test probes.Test probe 6 and Waveguide slot array antenna 1
Keep vertical, the spacing between test probe 6 and Waveguide slot array antenna 1 should be less than 3mm, the polarization mode of test probe with
The polarization mode of antenna is consistent, for example, Waveguide slot array antenna 1 polarization mode be vertical polarization, then test probe 6 pole
Change mode is also vertical polarization.
When test starts, test probe 6 should be directed at first Waveguide slot antenna radiation amplitude by gantry movement
Larger gap, such as single Waveguide slot array antenna have 20 gaps, then are directed at the 10th or 11 gaps, set automatic
Control test system gantry sampling interval equal with the spacing between adjacent two Waveguide slot antennas, sampled point number
It is equal with the antenna number for needing to test, moved using near-field test software gantry, complete radar system channel amplitude
With the test of phase.
As shown in figure 1, during transmission channel amplitude and phase correction, the amplitude phase of T/R component transmission channels is controlled using beam controlling system
Position is desired value, and continuous wave signal is launched in the port of vector network analyzer 1, by power division network 3, T/R components 2 and radio frequency transmission
Launched after line 4 by Waveguide slot array antenna 1, to prevent T/R components 2 launch continuous wave from causing to burn, T/R groups need to be reduced
Part supply voltage, to ensure that T/R components 2 can launch continuous wave, test probe 6 receives what Waveguide slot array antenna 1 was launched
Signal, enter the port of vector network analyzer 2 by radio-frequency transmission line.The movement of automatic control testing system gantry is gone forward side by side
Row signal sampling, obtained after collection with one group of amplitude-phase test value of transmission channel number identical, respectively by test value
In amplitude and phase carry out from normalizing, then the amplitude of desired value and phase are carried out from normalizing, using from the phase after normalizing
The amplitude and phase of prestige value are subtracted each other with the amplitude from the test value after normalizing and phase respectively, obtain the amplitude-phase of interchannel
Difference, the amplitude difference and phase difference are the amplitude and phase compensation value of system channel, pass through ripple control using the amplitude and phase compensation value
The range value and phase value of system control T/R component transmission channels are compensated, and offset is solidified in beam controlling system, are made
It is called for correction parameter.Transmission channel amplitude and phase correction flow chart is as shown in Figure 2.
During receiving channel amplitude and phase correction, beam controlling system control T/R components 2 are reception state, and control the width of T/R components 2
Mutually value is desired value, launches continuous wave signal by the port of vector network analyzer 2, by Waveguide slot after 6 transmittings of popping one's head in after tested
Antenna 1 is received, and letter is carried out by 1 port of vector network analyzer after radio-frequency transmission line 4, T/R components 2 and power division network 3
Number receive.Automatic control testing system gantry is mobile simultaneously to carry out signal sampling, is obtained after collection and transmission channel
One group of amplitude-phase value of number identical is test value.Respectively the amplitude in test value and phase from normalizing, then will
The amplitude and phase of desired value are carried out from normalizing, using the amplitude from the desired value after normalizing and phase respectively with from after normalizing
The amplitude and phase of test value are subtracted each other, and obtain that the amplitude-phase of interchannel is poor, and the amplitude difference and phase difference are system channel
Amplitude and phase compensation value, using the amplitude and phase compensation value by beam controlling system control T/R component receiving channels range value and
Phase value is compensated, and offset is solidified in beam controlling system, is called as correction parameter.Receiving channel width mutually school
Positive flow chart is as shown in Figure 3.
The present invention from normalization method, benchmark can be used as by the use of the test value of any one Waveguide slot array antenna
Value, the amplitude-phase value of most handy middle Waveguide slot array antenna is as a reference value.
Claims (4)
1. a kind of Waveguide slot array antenna bearing calibration, trimming process are corrected in microwave dark room, comprised the following steps：Transmitting
The correction of channel amplitude phase and the correction of receiving channel amplitude-phase；
The correction of transmission channel amplitude-phase comprises the following steps：Signal is carried out using near-field test control vector network analyzer
Transmitting and reception, gantry carries out position movement, while automatic control testing system data acquisition；
Transmission channel amplitude-phase correction signal flow be：Continuous wave signal is launched in vector network analyzer port, by work(
Launched after subnetwork, T/R components and radio-frequency transmission line by Waveguide slot array antenna, what T/R components transmission channel was set
Signal amplitude and phase are desired value；Test probe receives the signal of Waveguide slot array antenna transmitting, enters by test cable
Enter vector network analyzer port, the amplitude and phase value that vector network analyzer port reception post-sampling obtains are test value；
Respectively the amplitude in test value and phase from normalizing, then carry out the amplitude of desired value and phase from normalizing,
Subtracted each other respectively with the amplitude from the test value after normalizing and phase using the amplitude from the desired value after normalizing and phase, led to
Amplitude-phase between road is poor, and the amplitude difference and phase difference are the amplitude and phase compensation value of system transmission channel, and by offset
Solidify in beam controlling system, be called as correction parameter；
The correction of receiving channel amplitude-phase comprises the following steps：Signal is carried out using near-field test control vector network analyzer
Transmitting and reception, gantry carries out position movement, while automatic control testing system data acquisition；
Receiving channel amplitude-phase correction signal flow be：Vector network analyzer launches continuous wave signal, pops one's head in after tested
Launched, received by Waveguide slot array antenna, via after T/R components receiving channel, radio-frequency transmission line, power division network by swearing
Measure Network Analyzer and carry out signal reception；The amplitude and phase value that T/R components receiving channel is set are desired value, and vector network divides
The amplitude and phase value that analyzer reception post-sampling obtains are test value；
Respectively the amplitude in test value and phase from normalizing, then carry out the amplitude of desired value and phase from normalizing,
Subtracted each other respectively with the amplitude from the test value after normalizing and phase using the amplitude from the desired value after normalizing and phase, led to
Amplitude-phase between road is poor, and the amplitude difference and phase difference are the amplitude and phase compensation value of system receiving channel, and by offset
Solidify in beam controlling system, be called as correction parameter.
2. Waveguide slot array antenna bearing calibration according to claim 1, it is characterised in that：Described test probe with
Waveguide slot array antenna keeps vertical, and the spacing between test probe and Waveguide slot array antenna should be less than 3mm.
3. a kind of Waveguide slot array antenna means for correcting, including Waveguide slot array antenna (1), T/R components (2), work(subnetting
Network (3), radio-frequency transmission line (4), test cable (5), test probe (6), beam controlling system, automatic control testing system, vector net
Network analyzer and scanning support；Waveguide slot array antenna (1) with being attached by radio-frequency transmission line (4) and T/R components (2),
T/R components (2) are attached with beam controlling system and power division network (3) respectively, and power division network (3) passes through test cable (5) and arrow
Amount Network Analyzer is attached, and vector network analyzer is connected by test cable (5) with test probe (6), and its feature exists
In：The transmitting of shown automatic control testing system control vector network analyzer and reception signal, while gantry
Movement is synchronous with the transmitting reception of signal, and on scanning support, scanning support can move described test probe (6) on platform,
And then realize the test one by one to Waveguide slot array antenna (1).
4. Waveguide slot array antenna means for correcting according to claim 3, it is characterised in that：Described test probe
(6) vertical with Waveguide slot array antenna (1) holding, the spacing between test probe (6) and Waveguide slot array antenna (1) should
Less than 3mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510509282.2A CN105158768B (en) | 2015-08-19 | 2015-08-19 | A kind of Waveguide slot array antenna means for correcting and bearing calibration |
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| CN201510509282.2A CN105158768B (en) | 2015-08-19 | 2015-08-19 | A kind of Waveguide slot array antenna means for correcting and bearing calibration |
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| CN105158768A CN105158768A (en) | 2015-12-16 |
| CN105158768B true CN105158768B (en) | 2017-11-14 |
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| CN106990394B (en) * | 2017-02-27 | 2019-05-10 | 中国电子科技集团公司第二十七研究所 | A kind of calibration of amplitude and phase method of antenna element in plane or cylinder phased-array radar |
| CN107561374B (en) * | 2017-07-03 | 2020-02-11 | 北京遥测技术研究所 | Phased array antenna automatic test system and test method |
| CN109839543B (en) * | 2017-11-29 | 2022-04-22 | 南京捷希科技有限公司 | System and method for testing amplitude-phase consistency of antenna |
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| CN109541558A (en) * | 2018-09-30 | 2019-03-29 | 航天恒星科技有限公司 | A kind of calibration method of whole process total system Active Phase-Array Radar target seeker |
| CN109901125B (en) * | 2019-03-11 | 2021-07-23 | 中国电子科技集团公司第三十八研究所 | Airborne two-dimensional active phased array radar antenna correction device and method |
| CN112103652B (en) * | 2020-08-11 | 2024-02-06 | 星展测控科技股份有限公司 | Double-path waveguide phase matching device |
| CN112816961B (en) * | 2021-03-17 | 2022-03-25 | 中国人民解放军海军潜艇学院 | Ku wave band phased array water surface target detection system with self-adaptive wave beam stabilization |
| WO2024060040A1 (en) * | 2022-09-20 | 2024-03-28 | 京东方科技集团股份有限公司 | Single-channel test device and system, and test method |
| CN115865231B (en) * | 2022-11-25 | 2024-04-05 | 中国电子科技集团公司第二十九研究所 | Channel correction method for instantaneous broadband receiving phased array system |
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