CN106645992A - Anti-interference antenna wire testing device and implementation method thereof - Google Patents
Anti-interference antenna wire testing device and implementation method thereof Download PDFInfo
- Publication number
- CN106645992A CN106645992A CN201611234337.4A CN201611234337A CN106645992A CN 106645992 A CN106645992 A CN 106645992A CN 201611234337 A CN201611234337 A CN 201611234337A CN 106645992 A CN106645992 A CN 106645992A
- Authority
- CN
- China
- Prior art keywords
- signal
- phase shifter
- satellite
- synthesizer
- interference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0871—Complete apparatus or systems; circuits, e.g. receivers or amplifiers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention discloses an anti-interference antenna wire testing device and an implementation method thereof. The wire test device comprises a low-noise amplifier, a first power/synthesizer, a first matching network unit, a phase shifter, a second matching network unit, a second power distribution/synthesizer and an antenna element which are connected in order. The wire test device comprises a phase controller and a power module which are connected with the phase shifter, and the power module is connected with the low-noise amplifier and the phase shifter configured to provide a power supply for the whole wire testing device. The anti-interference antenna wire testing device and the implementation method thereof simulate the wireless signals received by the antenna array (comprising a plurality of antenna elements) to omit expensive wireless test devices such as transmitting antennas, a power amplifier and the like. The test time cost is reduced, the test process is simple and not complex, and the test result error is low.
Description
Technical field
The present invention relates to the technical field of performance test of anti-interference antenna, more particularly to a kind of wired test of anti-interference antenna
Device and its implementation.
Background technology
Now in the wireless context, performance test of the anti-interference antenna to electromagnetic interference, presents complexity and does not know
Property, in addition, the assessment of interference free performance needs huge place, special transmitting antenna and calibrator (-ter) unit, and with early stage
The shortcomings of preparation extremely time-consuming, test scene builds difficulty, does not possess repeatability, if the different array days of test
Line, needs to manufacture multiple antennas in kind.
Interference free performance wireless test traditional at present, mainly using two schemes：One is the microwave dark room for building costliness
Carry out mapping true to nature；Two is to build field testing environment, and using repeatedly measurement outfield wireless environment destabilizing factor is eliminated
Affect.If however, using simple phase shifter and power splitter, coordinating aerial array manifold control algolithm, it is possible to outfield
Wireless test scenario simulation can be obviously improved testing efficiency into wired test environment, reduce test complexity, isolate because of antenna array
The impact of row processing and manufacturing error, can quickly assess interference free performance index, and analog parameter can be reconfigured, and can be simulated
The antenna array of arbitrary shape, accelerates the progress developed.
The content of the invention
In order to overcome the shortcoming of prior art presence with a kind of not enough, the wired test device of anti-interference antenna of present invention offer
And its implementation, testing time cost is reduced, and test process is simple and uncomplicated, test result error is low.
To solve above-mentioned technical problem, the present invention provides following technical scheme：A kind of wired test device of anti-interference antenna,
Including the low-noise amplifier being sequentially connected, the first power divider/synthesizer, the first matching network unit, phase shifter, second
Distribution network unit, the second power divider/synthesizer and bay, wired test device also includes what is be connected with phase shifter
Phase controller, wherein
The low-noise amplifier is used for the multichannel interference signal to being input into or simulation satellite signal carries out signal amplification；
First power divider/synthesizer is used for the multichannel interference signal or simulation satellite signal of distribution input；
The first, second matching network unit is used to configure impedance matching pad value；
The phase shifter is used to arrange the gain parameter value of multichannel interference signal or simulation satellite signal；
Multichannel interference signal or simulation satellite signal that the antenna pin unit receives for test；
The phase controller is used to control the phase shifter synthesis phase parameter.
Further, the quantity of the low-noise amplifier is N, then the first power divider/synthesizer, the second power point
N, the quantity of described, the first matching network unit, the second matching network unit and phase shifter are with/synthesizer and bay
N × N is, first power divider/synthesizer is connected with N number of first matching network unit, N number of second matching network unit
One the second power divider/synthesizer of connection.
Further, wired test device also includes power module, and the power module connects the low noise and puts
Big device, phase shifter, for providing power supply to whole wired test device.
Another object of the present invention is to provide a kind of implementation method of the wired test device of anti-interference antenna, including following step
Suddenly：
S1, input multichannel interference signal or satellite-signal, carry out signal amplification in low-noise amplifier；
S2, the signal after amplification is divided into using the first power divider/synthesizer, is obtained the equal N roads letter of power
Number；
S3, the N roads signal input phase shifter after being divided into is processed, obtained Multipexer interference signal or analog satellite
Signal；
Multipexer interference signal or simulation satellite signal are input into the second power divider/synthesizer and are carried out by S4, phase shifter
Process, and the output signal from bay, complete the simulation of signal.
Further, signal amplification, the gain A of low-noise amplifier are carried out in step S1LNAFor：
ALNA+Aps-ML-MR=20log (N)
Wherein, ApsIt is the gain of phase shifter, MLThe impedance matching pad value of the first matching network unit, MRIt is the second matching
The impedance matching pad value of NE, N is bay number；
And the noise coefficient F of whole wired test device is determined by below equation：
Wherein, FLNAIt is the noise coefficient of low-noise amplifier, FpsIt is the noise coefficient of phase shifter, is meeting formula ALNA+
Aps-ML-MROn the premise of=20log (N), F is improved as far as possibleLNA, reduce Fps；Due to MLAnd MRAll it is given value, then combines letter
Number frequency and bandwidth, determine gain, noise coefficient the two parameters of low-noise amplifier and phase shifter.
Further, in step S3, specially：
Phase controller individually controls N × N number of phase shifter, adjusts the N roads signal of N number of first power divider/synthesizer
Phase place；N × N number of first matching network unit is inserted between phase shifter and the first power divider/synthesizer, the first power point is completed
With the impedance matching between the output of/synthesizer and phase shifter input, so as to obtain N × N number of Multipexer interference signal or simulation
Satellite-signal.
Further, the phase controller individually controls N × N number of phase shifter, adjusts N number of first power distribution/synthesis
The phase place of the N roads signal of device, the regulation of phase place is specifically calculated as：
The regulation of the phase place of multichannel interference signal or satellite-signal is based on xyz coordinate systems, i antenna array of arbitrary shape
Unit can be expressed as below equation in the locus of this coordinate system：
(xi,yi,zi)=(ri cosθi cosβi,ri cosθi sinβi,ri sinθi)
In formula, riIt is i-th array element center to origin of coordinates vector length, θiIt is its angle of pitch, βiIt is its orientation
Angle, and the locus of n-th multichannel interference signal or satellite-signal is expressed as：
(xn,yn,zn)=(Tn cosφn cosαn,Tn cosφn sinαn,Tn sinφn)
In formula, TnIt is n-th multichannel interference signal or satellite-signal to origin of coordinates vector length, φnIt is its angle of pitch,
αnIt is its azimuth；
In the case where noise situations are not considered, N number of bay receives most N number of multichannel interference signals or satellite-signal, N number of
The output of bay is expressed as：
Wherein, SiT () is the multichannel interference signal or satellite-signal of input,
It is i-th bay to n-th multichannel interference signal or the direction vector of satellite-signal；λ is multichannel interference signal or satellite
Signal wavelength, is given value；AndIt is n-th interference signal or satellite-signal
Position and the position of i-th array element, the difference of the origin of coordinates is reached, by interference signal or satellite-signal, and each array element
The angle of pitch and azimuth uniquely determine, and above-mentioned parameter is input to into phase controller, you can be calculated the phase value of regulation.
Further, in step S4, Multipexer interference signal or simulation satellite signal are input into second by phase shifter
Power divider/synthesizer is processed, specially：
Output N × N roads the interference signal of N × N number of phase shifter or simulation satellite signal, by N × N number of second matching network
Unit is input into into the power divider/synthesizer of N × N roads second, and N × N number of second matching network unit networks complete the second power
Distribution/synthesizer exports the impedance matching and phase shifter input between.
After above-mentioned technical proposal, the present invention at least has the advantages that：
1st, the invention provides a kind of can just assess the wired survey of anti-interference antenna performance using realization without the need for antenna array material object
The method of examination；
2nd, the simulation for realizing N number of interference signal or satellite-signal of the invention, interference signal and satellite-signal number summation are most
It is mostly N number of；
3rd, the present invention realizes antenna array reception or the information emulator of transmission signal of arbitrarily N number of array element, can simulate letter
Number the angle of pitch and the much information such as azimuth, assess anti-interference and multiple antennas acceptance under convenient laboratory environment indoors
Energy；
4th, the present invention is simple, can be in the case of Radio Test Equipment inadequate resource, with the hardware cost of very little
The simulation and replacement of aerial array are provided, the present invention adopts software and hardware coordinate design technology, convenient use, for many antenna arrays
Row test and interference free performance functional assessment occasion have significant application value.
Description of the drawings
Fig. 1 is a kind of structure chart of the wired test device of anti-interference antenna of the invention；
Fig. 2 is that a kind of phase mode of the wired test device of anti-interference antenna of the invention fits the regular schematic diagram of regulation.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combine, below in conjunction with the accompanying drawings the application is described in further detail with specific embodiment.
Embodiment
Present disclosure is that power divider/synthesizer, phase shifter and phase controller come simulaed interference signal and satellite
Signal is exported in the synthesis of bay, forms virtual-antenna effect.Phase controller is according to interference signal, satellite-signal and void
Intend the relative position of antenna, be calculated the information such as azimuth, the angle of pitch, control phase shifter precise restoration interference signal and satellite
The direction of signal, is then synthesized with combiner/power splitter to interference signal and satellite-signal, forms virtual antenna arrays column signal defeated
Go out, aerial array in kind is replaced in actual test.
As shown in figure 1, the present invention provides a kind of anti-interference antenna wired test device, including power module, low noise are put
Big device (LNA), the first power divider/synthesizer, the first matching network unit, phase shifter, phase controller, the second matching network
Unit, the second power divider/synthesizer and bay.
N way power distributor/synthesizers are then the 1 N number of output of input as distributor being, and when being used as synthesizer,
It is then 1 output of N number of input, the line rule of internal 2 groups of power distributor/synthesizers in left and right is determined by below equation:
PLij→PRji, i, j=1,2...N
In formula, PLijIt is j-th output port of i-th distributor of left side power distributor/synthesizer, and PRjiIt is
I-th input port of j-th synthesizer of the right power distributor/synthesizer.
1st, the design parameter of phase shifter and LNA determines
The main design parameters of phase shifter and LNA are gain and noise coefficient.For simulating the antenna array with N array elements
The output signal of unit, the yield value A of the LNA inside anti-interference wired test deviceLNA(unit：DB, similarly hereinafter) and phase shifter increasing
Beneficial value is calculated by formula (1)：
ALNA+Aps-ML-MR=20log (N) (1)
In formula (1), ALNAIt is the gain of LNA, ApsIt is the gain of phase shifter, MLIt is left side passive resistance in figure (2)
Pad value with network, and MRIt is the pad value of right side passive resistance matching network, N is bay number.
And whole test device noise coefficient F is determined by formula (2)：
Wherein, FLNAIt is the noise coefficient of LNA, FpsIt is the noise coefficient of phase shifter.On the premise of formula (1) is met, to the greatest extent
F may be improvedLNA, reduce Fps.Due to MLAnd MRAll it is given value, then LNA and shifting can be determined with binding signal frequency and bandwidth
The gain of phase device, noise coefficient the two parameters.
2nd, the calculating of phase adjusted value
The interference signal on each road and the phase adjusted value calculating formula of satellite-signal, based on the xyz coordinate systems shown in Fig. 2,
I-th array element of bay of arbitrary shape can be expressed as formula (3) in the locus of this coordinate system：
(xi,yi,zi)=(ri cosθi cosβi,ri cosθi sinβi,ri sinθi) (3)
In formula, riIt is i-th array element center to origin of coordinates vector length, θiIt is its angle of pitch, βiIt is its orientation
Angle, and the locus of n-th interference signal or satellite-signal is expressed as：
(xn,yn,zn)=(Tn cosφn cosαn,Tn cosφn sinαn,Tn sinφn) (4)
In formula, TnIt is n-th interference signal or satellite-signal to origin of coordinates vector length, φnIt is its angle of pitch, αn
It is its azimuth.Then do not consider under noise situations, the bay with N number of array element receives most N number of interference signals or defends
Star signal, the output of N number of array element can be expressed as：
Wherein, SiT () is each interference signal or satellite-signal of input,
It is i-th bay to n-th interference signal or the direction vector of satellite-signal；λ is interference or signal wavelength, is known
Value；AndIt is position and i-th array element of n-th interference signal or satellite-signal
Position, reach the difference of the origin of coordinates, by interference signal or satellite-signal, and each array element the angle of pitch and azimuth it is unique
It is determined that, above-mentioned parameter is input to into phase controller, you can be calculated the phase value of regulation.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
It is understood by, can these embodiments be carried out without departing from the principles and spirit of the present invention with various equivalent changes
Change, change, replace and modification, the scope of the present invention is limited by claims and its equivalency range.
Claims (8)
1. the wired test device of a kind of anti-interference antenna, it is characterised in that including the low-noise amplifier being sequentially connected, the first work(
Rate distribution/synthesizer, the first matching network unit, phase shifter, the second matching network unit, the second power divider/synthesizer and
Bay, wired test device also includes the phase controller being connected with phase shifter, wherein
The low-noise amplifier is used for the multichannel interference signal to being input into or simulation satellite signal carries out signal amplification；
First power divider/synthesizer is used for the multichannel interference signal or simulation satellite signal of distribution input；
The first, second matching network unit is used to configure impedance matching pad value；
The phase shifter is used to arrange the gain parameter value of multichannel interference signal or simulation satellite signal；
Multichannel interference signal or simulation satellite signal that the antenna pin unit receives for test；
The phase controller is used to control the phase shifter synthesis phase parameter.
2. a kind of wired test device of anti-interference antenna according to claim 1, it is characterised in that the low noise amplification
The quantity of device is N, then the first power divider/synthesizer, the second power divider/synthesizer and bay are N, described, the
The quantity of one matching network unit, the second matching network unit and phase shifter is N × N, first power divider/synthesizer
N number of first matching network unit is connected with, N number of second matching network unit connects second power divider/synthesizer.
3. a kind of wired test device of anti-interference antenna according to claim 1, it is characterised in that wired test dress
Put and also include power module, the power module connects the low-noise amplifier, phase shifter, for whole wired test dress
Offer power supply is provided.
4. the implementation method of the wired test device of a kind of anti-interference antenna, it is characterised in that comprise the following steps：
S1, input multichannel interference signal or satellite-signal, carry out signal amplification in low-noise amplifier；
S2, the signal after amplification is divided into using the first power divider/synthesizer, is obtained the equal N roads signal of power；
S3, the N roads signal input phase shifter after being divided into is processed, obtained Multipexer interference signal or analog satellite letter
Number；
Multipexer interference signal or simulation satellite signal are input into the second power divider/synthesizer and are processed by S4, phase shifter,
And from bay output signal, complete the simulation of signal.
5. the implementation method of the wired test device of a kind of anti-interference antenna according to claim 4, it is characterised in that described
Signal amplification, the gain A of low-noise amplifier are carried out in step S1LNAFor：
ALNA+Aps-ML-MR=20log (N)
Wherein, ApsIt is the gain of phase shifter, MLThe impedance matching pad value of the first matching network unit, MRIt is the second matching network
The impedance matching pad value of unit, N is bay number；
And the noise coefficient F of whole wired test device is determined by below equation：
Wherein, FLNAIt is the noise coefficient of low-noise amplifier, FpsIt is the noise coefficient of phase shifter, is meeting formula ALNA+Aps-
ML-MROn the premise of=20log (N), F is improved as far as possibleLNA, reduce Fps；Due to MLAnd MRAll be given value, then binding signal frequency
Rate and bandwidth, determine gain, noise coefficient the two parameters of low-noise amplifier and phase shifter.
6. the implementation method of the wired test device of a kind of anti-interference antenna according to claim 4, it is characterised in that described
In step S3, specially：
Phase controller individually controls N × N number of phase shifter, adjusts the phase place of the N roads signal of N number of first power divider/synthesizer；
N × N number of first matching network unit is inserted between phase shifter and the first power divider/synthesizer, the first power distribution/conjunction is completed
The impedance matching grown up to be a useful person between output and phase shifter input, so as to obtain N × N number of Multipexer interference signal or analog satellite letter
Number.
7. the implementation method of the wired test device of a kind of anti-interference antenna according to claim 6, it is characterised in that described
Phase controller individually controls N × N number of phase shifter, adjusts the phase place of the N roads signal of N number of first power divider/synthesizer, phase place
Regulation be specifically calculated as：
The regulation of the phase place of multichannel interference signal or satellite-signal is that, based on xyz coordinate systems, i bay of arbitrary shape exists
The locus of this coordinate system can be expressed as below equation：
(xi,yi,zi)=(ricosθicosβi,ricosθisinβi,risinθi)
In formula, riIt is i-th array element center to origin of coordinates vector length, θiIt is its angle of pitch, βiIt is its azimuth, and
The locus of n-th multichannel interference signal or satellite-signal is expressed as：
(xn,yn,zn)=(Tncosφncosαn,Tncosφnsinαn,Tnsinφn)
In formula, TnIt is n-th multichannel interference signal or satellite-signal to origin of coordinates vector length, φnIt is its angle of pitch, αnIt is
Its azimuth；
In the case where noise situations are not considered, N number of bay receives most N number of multichannel interference signals or satellite-signal, N number of antenna
The output of array element is expressed as：
Wherein, SiT () is the multichannel interference signal or satellite-signal of input,
It is i-th bay to n-th multichannel interference signal or the direction vector of satellite-signal；λ is multichannel interference signal or satellite
Signal wavelength, is given value；AndIt is n-th interference signal or satellite-signal
Position and the position of i-th array element, the difference of the origin of coordinates is reached, by interference signal or satellite-signal, and each array element
The angle of pitch and azimuth uniquely determine, and above-mentioned parameter is input to into phase controller, you can be calculated the phase value of regulation.
8. the implementation method of the wired test device of a kind of anti-interference antenna according to claim 4, it is characterised in that described
In step S4, phase shifter is input into Multipexer interference signal or simulation satellite signal at the second power divider/synthesizer
Reason, specially：
Output N × N roads the interference signal of N × N number of phase shifter or simulation satellite signal, by N × N number of second matching network unit
Be input into into the power divider/synthesizer of N × N roads second, N × N number of second matching network unit networks complete the second power distribution/
Synthesizer exports the impedance matching and phase shifter input between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234337.4A CN106645992B (en) | 2016-12-28 | 2016-12-28 | A kind of wired test device of anti-interference antenna and its implementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234337.4A CN106645992B (en) | 2016-12-28 | 2016-12-28 | A kind of wired test device of anti-interference antenna and its implementation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106645992A true CN106645992A (en) | 2017-05-10 |
| CN106645992B CN106645992B (en) | 2019-06-18 |
Family
ID=58832114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611234337.4A Active CN106645992B (en) | 2016-12-28 | 2016-12-28 | A kind of wired test device of anti-interference antenna and its implementation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106645992B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239741A (en) * | 2018-09-30 | 2019-01-18 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The automatic calibration test system of the more array-element antennas of navigation satellite |
| CN109782101A (en) * | 2019-03-13 | 2019-05-21 | 海检检测有限公司 | A kind of calibration equipment and method of calibration for the test of automotive electronics conducted immunity |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101297479A (en) * | 2005-11-03 | 2008-10-29 | 诺基亚公司 | Method and arrangement for performing analog signal processing and measuring between a signal source and a load |
| CN102594379A (en) * | 2012-02-21 | 2012-07-18 | 中兴通讯股份有限公司 | Phase-shifting filter device and application thereof |
| CN104459641A (en) * | 2014-11-21 | 2015-03-25 | 上海新跃仪表厂 | Microwave environment interference signal simulating system |
| CN104698475A (en) * | 2015-04-02 | 2015-06-10 | 芜湖航飞科技股份有限公司 | Satellite navigation receiver simulation anti-jamming testing method |
| CN105223435A (en) * | 2015-08-31 | 2016-01-06 | 北京航天长征飞行器研究所 | A kind of missile-borne anti-interference antenna Auto-Test System and method of testing |
| CN105549037A (en) * | 2015-12-18 | 2016-05-04 | 中国人民解放军国防科学技术大学 | High-precision satellite navigation broadband array signal generation method |
-
2016
- 2016-12-28 CN CN201611234337.4A patent/CN106645992B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101297479A (en) * | 2005-11-03 | 2008-10-29 | 诺基亚公司 | Method and arrangement for performing analog signal processing and measuring between a signal source and a load |
| CN102594379A (en) * | 2012-02-21 | 2012-07-18 | 中兴通讯股份有限公司 | Phase-shifting filter device and application thereof |
| CN104459641A (en) * | 2014-11-21 | 2015-03-25 | 上海新跃仪表厂 | Microwave environment interference signal simulating system |
| CN104698475A (en) * | 2015-04-02 | 2015-06-10 | 芜湖航飞科技股份有限公司 | Satellite navigation receiver simulation anti-jamming testing method |
| CN105223435A (en) * | 2015-08-31 | 2016-01-06 | 北京航天长征飞行器研究所 | A kind of missile-borne anti-interference antenna Auto-Test System and method of testing |
| CN105549037A (en) * | 2015-12-18 | 2016-05-04 | 中国人民解放军国防科学技术大学 | High-precision satellite navigation broadband array signal generation method |
Non-Patent Citations (1)
| Title |
|---|
| QIWEI HAN 等: "A High-Precision and Low-Cost Planar Array Signal Simulator Based on Cable Delays", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239741A (en) * | 2018-09-30 | 2019-01-18 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The automatic calibration test system of the more array-element antennas of navigation satellite |
| CN109239741B (en) * | 2018-09-30 | 2023-03-28 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Automatic calibration test system for multi-array element antenna of navigation satellite |
| CN109782101A (en) * | 2019-03-13 | 2019-05-21 | 海检检测有限公司 | A kind of calibration equipment and method of calibration for the test of automotive electronics conducted immunity |
| CN109782101B (en) * | 2019-03-13 | 2021-09-24 | 海检检测有限公司 | Calibration device and calibration method for automobile electronic conduction immunity test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106645992B (en) | 2019-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106443211B (en) | It is a kind of suitable for the integrated correction system of different Active Arrays and bearing calibration | |
| EP2347531B1 (en) | Over-the-air test | |
| CN104992001B (en) | The accurate quick calculation method of extensive MIMO array Antenna Far Field radiation field | |
| CN109787671B (en) | Hybrid beam forming device and method | |
| CN104145371B (en) | Antenna with multiple radiators collimation technique | |
| CN105790811B (en) | A kind of quick training method of high-resolution analog beam and device | |
| CN103323845B (en) | Image inversion method of non-uniform sampling comprehensive bore diameter radiometer | |
| CN104600428B (en) | A kind of system for improving continuous wave radar isolation between transmitting and receiving antenna | |
| KR20130055491A (en) | Over-the-air test | |
| CN105158735B (en) | Null tone Two-Dimensional Spectral Estimation method based on compression sampling array | |
| CN101652667A (en) | Multichannel absorberless near field measurement system | |
| CN108494512B (en) | Millimeter wave large-scale MIMO channel simulation system and method | |
| CN105518934A (en) | Array antenna calibration method, device and system | |
| CN109547128A (en) | The method for rapidly testing of Massive MIMO end to end performance | |
| CN103399214A (en) | Satellite-borne phased-array receiving antenna testing system | |
| CN111859644B (en) | Method for forming receiving wave beam and scanning azimuth of circular phased array antenna | |
| CN113162670A (en) | Digital multi-beam correction and synthesis method | |
| CN112583498B (en) | Array antenna system calibration method, device, equipment and storage medium | |
| CN106645992A (en) | Anti-interference antenna wire testing device and implementation method thereof | |
| CN108199794A (en) | A kind of statistical modeling method of novel Massive mimo channels model | |
| CN103715518B (en) | The method for designing of Taylor-index complex Unequal distance modularity array antenna | |
| CN110907923A (en) | Bistatic EMVS-MIMO radar angle estimation algorithm and device based on parallel factor algorithm | |
| CN104833986B (en) | The anti-interference array manifold measuring method of satellite navigation | |
| CN104471868A (en) | Antenna port mapping method and device | |
| CN104375419B (en) | A kind of electronic countermeasure radio frequency simulation aerial array equipment and feed control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |