CN108414990A - A kind of target scattering characteristics measuring system and method - Google Patents
A kind of target scattering characteristics measuring system and method Download PDFInfo
- Publication number
- CN108414990A CN108414990A CN201810162272.XA CN201810162272A CN108414990A CN 108414990 A CN108414990 A CN 108414990A CN 201810162272 A CN201810162272 A CN 201810162272A CN 108414990 A CN108414990 A CN 108414990A
- Authority
- CN
- China
- Prior art keywords
- switch
- antenna
- target
- pole double
- spdt
- 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.)
- Pending
Links
Classifications
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to a kind of target scattering characteristics measuring system and methods, including：Computer, switch driver, vector network analyzer, switch matrix, transmitting antenna and at least two reception antennas；Computer determines measurement pattern and at least two intended recipient antennas, and according to measurement pattern, firing order is sent to switch driver, according to measurement pattern and at least two intended recipient antennas, transmits and receives and instructs to switch driver；Switch driver controls switch matrix according to firing order and is connected with transmitting antenna, instructs at least two intended recipient antennas of control to be connected with switch matrix according to receiving；Transmitting antenna with switch matrix when being connected, to objective emission detectable signal；Reception antenna receives target and is directed to the scatter echo signal that detectable signal generates when being connected with switch matrix；Vector network analyzer receives scatter echo signal by switch matrix, and analyzes scatter echo signal.The present invention can reduce time of measuring, and then improve measurement efficiency.
Description
Technical field
The present invention relates to electromagnetism technical field of measurement and test more particularly to a kind of target scattering characteristics measuring systems and method.
Background technology
With the high speed development of stealthy, anti-stealthy weaponry technology, the stealth technology of the targets such as aircraft machine is mostly adopted
It is stealthy with achieving the purpose that radar cross section after reduction.Reduced within the scope of the certain angle of target cranial direction after it to
Scattering, in the process, in addition to a small amount of energy is absorbed, remaining most of energy is dispersed into other directions.Therefore, target dissipates
It is vital for anti-stealthy test to penetrate feature measurement.
Currently, in target scattering characteristics measurement process, generally by disposing double, multistation antenna, in different directions
Upper capture radar return, to reach the needs of anti-stealthy test assessment.
But this method needs the combination switching for being accomplished manually transceiver channel, spends longer time of measuring.
Therefore, for the above deficiency, it is desirable to provide a kind of new target scattering characteristics measuring system and method are surveyed with reducing
It measures the time, and then improves measurement efficiency.
Invention content
The technical problem to be solved in the present invention is that manual switching transceiver channel needs to spend longer time of measuring, for
Defect in the prior art provides a kind of target scattering characteristics measuring system and method.
In order to solve the above technical problem, the present invention provides a kind of target scattering characteristics measuring systems, including：It calculates
Machine, switch driver, vector network analyzer, switch matrix, transmitting antenna and at least two reception antennas；
The switch driver is connected with the computer, the switch matrix respectively, the switch matrix respectively with institute
State vector network analyzer, the transmitting antenna is connected at least two reception antenna, wherein each reception antenna
Residing azimuth is different；
The computer, for determining measurement pattern and at least two intended recipient antennas；According to the measurement pattern, to
The switch driver sends firing order；According to the measurement pattern and at least two intended recipients antenna, to described
Switch driver transmits and receives instruction；
The switch driver is led for controlling the switch matrix according to the firing order with the transmitting antenna
It is logical；At least two intended recipients antenna is controlled according to reception instruction to be connected with the switch matrix；
The transmitting antenna is used for when being connected with the switch matrix, to objective emission detectable signal；
The reception antenna is directed to the detectable signal for when being connected with the switch matrix, receiving the target
The scatter echo signal of generation；
The vector network analyzer, for receiving the scatter echo signal by the switch matrix, and to described
Scatter echo signal is analyzed.
Preferably,
The measurement pattern, including：Transmitting antenna horizontal polarization, or, transmitting antenna vertical polarization；
The switch matrix, including：Emit single-pole double-throw switch (SPDT)；
The transmitting single-pole double-throw switch (SPDT) is connected with the switch driver, the transmitting antenna respectively；
The switch driver, for when the measurement pattern is transmitting antenna horizontal polarization, being referred to according to the transmitting
The first output end of the control transmitting single-pole double-throw switch (SPDT) is enabled to be connected with the transmitting antenna；When the measurement pattern is transmitting
When antennas orthogonal polarizes, the second output terminal of the transmitting single-pole double-throw switch (SPDT) and the transmitting are controlled according to the firing order
Antenna is connected；
The transmitting antenna is used for when being connected with the first output end of the transmitting single-pole double-throw switch (SPDT), with horizontal pole
The mode of change is to the objective emission detectable signal；When being connected with the second output terminal of the transmitting single-pole double-throw switch (SPDT), with
The mode of vertical polarization is to the objective emission detectable signal.
Preferably,
The measurement pattern, including：Reception antenna horizontal polarization, or, reception antenna vertical polarization；
The switch matrix, including：First hilted broadsword, six throw switch, at least one second hilted broadsword, six throw switch and at least two
Receive single-pole double-throw switch (SPDT)；
First hilted broadsword, six throw switch respectively with the switch driver, at least one second hilted broadsword, six throw switch
It is connected；At least one second hilted broadsword, six throw switch is connected at least two receptions single-pole double-throw switch (SPDT)；It is described at least
Two reception single-pole double-throw switch (SPDT)s are connected at least two reception antenna, wherein described at least two receive single-pole double throw
Switch is corresponded at least two reception antenna；
The switch driver, for according to the target output for receiving instruction and controlling six throw switch of the first hilted broadsword
End is connected with six throw switch of the second hilted broadsword of target, at least two target outputs of six throw switch of the second hilted broadsword of the target are distinguished
It is connected at least two connected intended recipient single-pole double-throw switch (SPDT)s；When the measurement pattern is reception antenna horizontal polarization,
The first end for controlling the intended recipient single-pole double-throw switch (SPDT) is connected with the connected intended recipient antenna；When the measurement mould
When formula is reception antenna vertical polarization, the second end for controlling the intended recipient single-pole double-throw switch (SPDT) connects with the target being connected
Receive antenna conducting；
The reception antenna is used for when being connected with the first output end of connected reception single-pole double-throw switch (SPDT), with level
Polarized mode receives the target and is directed to the scatter echo signal that the detectable signal generates；When double with the reception hilted broadsword being connected
When the second output terminal conducting of throw switch, the target is received in a manner of vertical polarization and is dissipated for what the detectable signal generated
Penetrate echo-signal.
Preferably,
Further comprise：At least two low-noise amplifiers, wherein at least two low-noise amplifier with it is described extremely
Few two reception antennas correspond；
The low-noise amplifier is connected with the switch matrix, the reception antenna respectively；
The low-noise amplifier, for being amplified to the scatter echo signal；
The vector network analyzer, for receiving the amplified scatter echo signal by the switch matrix.
Preferably,
At least two reception antenna is distributed in using the target as on the circumference in the center of circle.
Preferably,
The computer by GPIB (General-Purpose Interface Bus, general purpose interface bus) with it is described
Switch driver is connected.
The present invention also provides a kind of targets based on target scattering characteristics measuring system described in any of the above-described embodiment to dissipate
Characteristic measurement method is penetrated, including：
Computer determines measurement pattern and at least two intended recipient antennas, according to the measurement pattern, to switch drive
Device sends firing order；
The switch driver controls switch matrix according to the firing order and is connected with transmitting antenna；
When being connected with the switch matrix, the transmitting antenna is to objective emission detectable signal；
The computer is according to the measurement pattern and at least two intended recipients antenna, to the switch driver
Transmit and receive instruction；
The switch driver controls at least two intended recipients antenna and the switch according to reception instruction
Matrix is connected；
When being connected with the switch matrix, the reception antenna receives what the target was generated for the detectable signal
Scatter echo signal；
Vector network analyzer receives the scatter echo signal by the switch matrix, and believes the scatter echo
It number is analyzed.
Preferably,
The measurement pattern, including：Transmitting antenna horizontal polarization, or, transmitting antenna vertical polarization；
The switch driver controls switch matrix according to the firing order and is connected with transmitting antenna, including：
When the measurement pattern is transmitting antenna horizontal polarization, the switch driver is controlled according to the firing order
First output end of the transmitting single-pole double-throw switch (SPDT) is connected with the transmitting antenna；
When the measurement pattern is transmitting antenna vertical polarization, the switch driver is controlled according to the firing order
The second output terminal of the transmitting single-pole double-throw switch (SPDT) is connected with the transmitting antenna；
It is described when being connected with the switch matrix, the transmitting antenna to objective emission detectable signal, including：
When being connected with the first output end of the transmitting single-pole double-throw switch (SPDT), the transmitting antenna is with the side of horizontal polarization
Formula is to the objective emission detectable signal；
When being connected with the second output terminal of the transmitting single-pole double-throw switch (SPDT), the transmitting antenna is with the side of vertical polarization
Formula is to the objective emission detectable signal.
Preferably,
The measurement pattern, including：Reception antenna horizontal polarization, or, reception antenna vertical polarization；
The switch driver controls at least two intended recipients antenna and the switch according to reception instruction
Matrix is connected, including：
The switch driver according to it is described receive instruction control the target output of six throw switch of the first hilted broadsword with
Six throw switch of the second hilted broadsword of target conducting, six throw switch of the second hilted broadsword of the target at least two target outputs respectively with phase
At least two intended recipient single-pole double-throw switch (SPDT)s conducting even；
When the measurement pattern is reception antenna horizontal polarization, the switch driver controls the intended recipient hilted broadsword
The first end of commutator is connected with the connected intended recipient antenna；
When the measurement pattern is reception antenna vertical polarization, the switch driver controls the intended recipient hilted broadsword
The second end of commutator is connected with the connected intended recipient antenna；
It is described when being connected with the switch matrix, the reception antenna receives the target for detectable signal production
Raw scatter echo signal, including：
When being connected with the first output end of connected reception single-pole double-throw switch (SPDT), the reception antenna is with horizontal polarization
Mode receives the target and is directed to the scatter echo signal that the detectable signal generates；
When being connected with the second output terminal of connected reception single-pole double-throw switch (SPDT), the switch driver is with vertical polarization
Mode receive the target be directed to the detectable signal generate scatter echo signal.
Preferably,
Further comprise：
Low-noise amplifier is amplified the scatter echo signal；
The vector network analyzer receives the amplified scatter echo signal by the switch matrix.
The target scattering characteristics measuring system and method for implementing the present invention, have the advantages that：It is dissipated carrying out target
It, can be by computer controlled automatic switch matrix, so that the reception antenna in different orientations is connected when penetrating feature measurement
And work, realization measures the scattering properties of the different direction of target.And it is possible to pass through preset difference in a computer
Measurement pattern, realize under different polarization modes, different orientations, comprehensive, deep survey is carried out to the scattering properties of target
Amount.Compared with prior art, which does not need manual switching transceiver channel, can reduce time of measuring, Jin Erti
High measurement efficiency.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of target scattering characteristics measuring system provided by one embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram for target scattering characteristics measuring system that another embodiment of the present invention provides；
Fig. 3 is a kind of structural schematic diagram for target scattering characteristics measuring system that another embodiment of the invention provides；
Fig. 4 is the schematic layout pattern of reception antenna provided by one embodiment of the present invention；
Fig. 5 is a kind of flow chart of target scattering characteristics measurement method provided by one embodiment of the present invention；
Fig. 6 is a kind of flow chart for target scattering characteristics measurement method that another embodiment of the present invention provides；
Fig. 7 is a kind of structural schematic diagram for target scattering characteristics measuring system that further embodiment of the present invention provides.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of target scattering characteristics measuring system provided in an embodiment of the present invention, including computer 101, open
Close driver 102, vector network analyzer 103, switch matrix 104, transmitting antenna 105 and three reception antennas 106；
Switch driver 102 is connected with computer 101, switch matrix 104 respectively, switch matrix 104 respectively with vector net
Network analyzer 103, transmitting antenna 105 are connected with three reception antennas 106, wherein the azimuth residing for each reception antenna 106
It is different；
Computer 101, for determining measurement pattern and two intended recipient antennas；According to measurement pattern, to switch drive
Device 102 sends firing order；According to measurement pattern and two intended recipient antennas, transmits and receives and instruct to switch driver 102；
Switch driver 102 is connected for controlling switch matrix 104 according to firing order with transmitting antenna 105；According to connecing
It receives instruction and controls two intended recipient antennas 106 and the conducting of switch matrix 104；
Transmitting antenna 105 is used for when being connected with switch matrix 104, to objective emission detectable signal；
Reception antenna 106 is directed to the scattering that detectable signal generates for when being connected with switch matrix 104, receiving target
Echo-signal；
Vector network analyzer 103 for receiving scatter echo signal by switch matrix 104, and is believed scatter echo
It number is analyzed.
It, can be by computer controlled automatic switch matrix, so that in difference when carrying out target scattering characteristics measurement
Azimuthal reception antenna is connected and is worked, and realization measures the scattering properties of the different direction of target.And it is possible to logical
Preset different measurement pattern in a computer is crossed, is realized under different polarization modes, different orientations, it is special to the scattering of target
Property carries out comprehensive, deep measurement.Compared with prior art, which does not need manual switching transceiver channel, can
Time of measuring is reduced, and then improves measurement efficiency.
In practical application scene, the data of reception antenna can be arranged according to the needs of measurement, can select list
Azimuth or angles of azimuth measure, wherein azimuth is the position where reception antenna.It can by angles of azimuth measurement
To obtain the scattering properties of target in different directions, for
In one embodiment of the invention, measurement pattern, including：Transmitting antenna horizontal polarization, or, transmitting antenna is vertical
Polarization；
With reference to figure 2, switch matrix 104, including：Emit single-pole double-throw switch (SPDT) 1041；
Transmitting single-pole double-throw switch (SPDT) 1041 is connected with switch driver 102, transmitting antenna 105 respectively；
Switch driver 102, for when measurement pattern is transmitting antenna horizontal polarization, being controlled and being emitted according to firing order
First output end of single-pole double-throw switch (SPDT) 1041 is connected with transmitting antenna 105；When measurement pattern is transmitting antenna vertical polarization,
The second output terminal of transmitting single-pole double-throw switch (SPDT) 1041 is controlled according to firing order and transmitting antenna 105 is connected；
Transmitting antenna 105 is used for when being connected with the first output end of transmitting single-pole double-throw switch (SPDT) 1041, with horizontal polarization
Mode to objective emission detectable signal；When being connected with the second output terminal of transmitting single-pole double-throw switch (SPDT) 1042, with vertical pole
The mode of change is to objective emission detectable signal.
Wherein, in the present embodiment, according to the difference of transmitting antenna polarization mode, computer can be provided to few two kinds of surveys
Die trial formula, transmitting antenna horizontal polarization, transmitting antenna vertical polarization.In practical application scene, tester can be according to need
Determine the polarization mode of transmitting antenna.
In one embodiment of the invention, measurement pattern, including：Reception antenna horizontal polarization, or, reception antenna is vertical
Polarization；
Refering to what is shown in Fig. 2, switch matrix 104, including：First hilted broadsword, six throw switch 1042, six throw switch of the second hilted broadsword
1043 and three reception single-pole double-throw switch (SPDT)s 1044；
First hilted broadsword, six throw switch 1042 is connected with switch driver 102, six throw switch 1043 of the second hilted broadsword respectively；Second
Six throw switch 1043 of hilted broadsword is connected with three reception single-pole double-throw switch (SPDT)s 1044；Three reception single-pole double-throw switch (SPDT)s 1044 and three
Reception antenna 106 is connected, wherein receives single-pole double-throw switch (SPDT) 1044 and is corresponded with reception antenna 106；
Switch driver 102, for according to receive instruct control six throw switch 1042 of the first hilted broadsword target output with
Six throw switch of the second hilted broadsword of target conducting 1043, three target outputs of six throw switch 1043 of the second hilted broadsword of target respectively with phase
Three intended recipient single-pole double-throw switch (SPDT)s 1044 conducting even；When measurement pattern is reception antenna horizontal polarization, control targe
The first end for receiving single-pole double-throw switch (SPDT) 1044 is connected with the intended recipient antenna 106 being connected；When measurement pattern is reception antenna
When vertical polarization, the second end that control targe receives single-pole double-throw switch (SPDT) 1044 is connected with the intended recipient antenna 106 being connected；
Reception antenna 106 is used for when being connected with the first output end of connected reception single-pole double-throw switch (SPDT) 1044, with water
It equals polarized mode and receives the scatter echo signal that target is directed to detectable signal generation；When with the reception single-pole double-throw switch (SPDT) that is connected
When 1044 second output terminal conducting, the scatter echo letter that target is generated for detectable signal is received in a manner of vertical polarization
Number.
Corresponding with transmitting antenna, there are at least two polarization modes, i.e. reception antenna horizontal polarization, reception for reception antenna
Antennas orthogonal polarizes.In addition to this, due to being provided with multiple reception antennas, each reception antenna is located at different azimuths, surveys
Examination personnel can select to receive the reception antenna of scatter echo signal as needed.
In the present embodiment, Multistage Control is carried out to reception antenna by switch matrix, is switched by six throw switch of hilted broadsword
Different channels switches different polarization modes by single-pole double-throw switch (SPDT).
According to above-described embodiment as can be seen that controlling the switch isolation for switching with controlling and receiving antenna of transmitting antenna, but
It is transmitting antenna and reception antenna can also to be controlled simultaneously by same group of switch in practical applications, for example, control is emitted
The single-pole double-throw switch (SPDT) of antenna and control and receive the single-pole double-throw switch (SPDT) of the antenna difference with the same single pole multiple throw respectively
Output end is connected, and the switching of transmitting antenna and reception antenna can be realized by single pole multiple throw.
In one embodiment of the invention, as shown in figure 3, the system further includes：Three low-noise amplifiers 107,
In, low-noise amplifier 107 is corresponded with reception antenna 106；
Low-noise amplifier 107 is connected with switch matrix 104, reception antenna 106 respectively；
Low-noise amplifier 107, for being amplified to scatter echo signal；
Vector network analyzer 103 receives amplified scatter echo signal for passing through switch matrix 104.
Low-noise amplifier can compensate for the signal energy loss that long-line transmission is brought.
Scatter echo signal is accessed switch matrix by reception antenna, and scatter echo signal is summarized in vector network after frequency conversion
Analyzer.
In one embodiment of the invention, as shown in figure 4, three reception antennas 106 are distributed in using target as the center of circle
On circumference.
For example, in practical application scene, in the equator great circle east side half cycle peace of the spherical housing in ground-object spectrum laboratory
Reception antenna is filled,
In one embodiment of the invention, computer 101 is connected by GPIB with switch driver 102.
As shown in figure 5, an embodiment of the present invention provides one kind system is measured based on any of the above-described embodiment target scattering characteristics
The target scattering characteristics measurement method of system, including：
Step 501：Computer determines measurement pattern and at least two intended recipient antennas, according to measurement pattern, to switch
Driver sends firing order；
Step 502：Switch driver controls switch matrix according to firing order and is connected with transmitting antenna；
Step 503：When being connected with switch matrix, transmitting antenna is to objective emission detectable signal；
Step 504：Computer is transmitted and received according to measurement pattern and at least two intended recipient antennas to switch driver
Instruction；
Step 505：Switch driver is connected according to instruction at least two intended recipient antennas of control are received with switch matrix；
Step 506：When being connected with switch matrix, reception antenna receives target and is directed to the scatter echo that detectable signal generates
Signal；
Step 507：Vector network analyzer by switch matrix receive scatter echo signal, and to scatter echo signal into
Row analysis.
In one embodiment of the invention, measurement pattern, including：Transmitting antenna horizontal polarization, or, transmitting antenna is vertical
Polarization；
Switch driver controls switch matrix according to firing order and is connected with transmitting antenna, including：
When measurement pattern is transmitting antenna horizontal polarization, switch driver controls transmitting single-pole double throw according to firing order
First output end of switch is connected with transmitting antenna；
When measurement pattern is transmitting antenna vertical polarization, switch driver controls transmitting single-pole double throw according to firing order
The second output terminal of switch is connected with transmitting antenna；
When being connected with switch matrix, transmitting antenna to objective emission detectable signal, including：
When being connected with the first output end of transmitting single-pole double-throw switch (SPDT), transmitting antenna is in a manner of horizontal polarization to target
Emission detection signal；
When being connected with the second output terminal of transmitting single-pole double-throw switch (SPDT), transmitting antenna is in a manner of vertical polarization to target
Emission detection signal.
In one embodiment of the invention, measurement pattern, including：Reception antenna horizontal polarization, or, reception antenna is vertical
Polarization；
Switch driver is connected according to instruction at least two intended recipient antennas of control are received with switch matrix, including：
Switch driver instructs the target output and the second hilted broadsword of target of control six throw switch of the first hilted broadsword according to receiving
The conducting of six throw switches, six throw switch of the second hilted broadsword of target at least two target outputs respectively at least two targets that are connected
Receive single-pole double-throw switch (SPDT) conducting；
When measurement pattern is reception antenna horizontal polarization, switch driver control targe receives the of single-pole double-throw switch (SPDT)
One end is connected with connected intended recipient antenna；
When measurement pattern is reception antenna vertical polarization, switch driver control targe receives the of single-pole double-throw switch (SPDT)
Two ends are connected with connected intended recipient antenna；
When being connected with switch matrix, reception antenna receives target and is directed to the scatter echo signal that detectable signal generates, packet
It includes：
When being connected with the first output end of connected reception single-pole double-throw switch (SPDT), reception antenna is in a manner of horizontal polarization
It receives target and is directed to the scatter echo signal that detectable signal generates；
When being connected with the second output terminal of connected reception single-pole double-throw switch (SPDT), switch driver is with the side of vertical polarization
Formula receives target and is directed to the scatter echo signal that detectable signal generates.
In one embodiment of the invention, this method further includes：
Low-noise amplifier is amplified scatter echo signal；
Vector network analyzer receives amplified scatter echo signal by switch matrix.
As shown in fig. 6, the present invention is by taking target scattering characteristics measuring system as shown in Figure 7 as an example, to target scattering characteristics
Measurement method is described in detail, and this method includes：
Step 601：Computer determines measurement pattern and two intended recipient antennas, according to measurement pattern, to switch drive
Device sends firing order.
The embodiment of the present invention is only illustrated so that measurement pattern is transmitting antenna horizontal polarization as an example, other measurement patterns
Processing procedure it is similar therewith, details are not described herein again.
As shown in fig. 7, the system includes：Computer 101, switch driver 102, vector network analyzer 103, transmitting are single
Double-pole double throw switch 1041, transmitting antenna 105, six throw switch of the first hilted broadsword, 1042, three the second hilted broadswords, six throw switch 1043,17
The reception antenna 106 of reception single-pole double-throw switch (SPDT) 1044,17 of a low-noise amplifier 107,17.
Wherein, computer 101 is connected by GPIB with switch driver 102, and firing order is HP- with direct instruction
BASIC is instructed.
Switch matrix is made of six throw switch of hilted broadsword with single-pole double-throw switch (SPDT).Switch driver provides 24Vdc continuous 0.65A
Or the driving of peak value 1.3A (up to 1 second).The value that non-interrupted type switchs continuous power consumption is 120mA, and switch driver is allowed to drive simultaneously
It is switched as 248 dynamic, to complete the measurement task of multistation multi-mode.
Wherein, intended recipient antenna is currently to need the azimuth measured, for example, in the present embodiment, target connects
Receive two reception antennas that antenna is the leftmost side shown in Fig. 7.
Step 602：When measurement pattern is transmitting antenna horizontal polarization, switch driver is controlled according to firing order to be emitted
First output end of single-pole double-throw switch (SPDT) is connected with transmitting antenna.
Step 603：Transmitting antenna is in a manner of horizontal polarization to objective emission detectable signal.
Step 604：Computer refers to according to measurement pattern and two intended recipient antennas to switch driver transmitting and receiving
It enables.
Step 605：Switch driver instructs the target output and target of control six throw switch of the first hilted broadsword according to receiving
The conducting of second hilted broadsword, six throw switch, six throw switch of the second hilted broadsword of target at least two target outputs respectively be connected two
Intended recipient single-pole double-throw switch (SPDT) is connected, the first end of intended recipient single-pole double-throw switch (SPDT) is led with the intended recipient antenna being connected
It is logical.
In embodiments of the present invention, as shown in fig. 7, comprises three six throw switches of the second hilted broadsword, wherein the second of the leftmost side
Six throw switch of hilted broadsword is six throw switch of the second hilted broadsword of target, also, two of the six throw switch leftmost side of the second hilted broadsword of target export
End is target output, is connected respectively with two intended recipient single-pole double-throw switch (SPDT)s.
It should be noted that in the present embodiment, for amplified signal, being connect with target in six throw switch of the second hilted broadsword of target
Low-noise amplifier is set between receipts single-pole double-throw switch (SPDT), therefore, six throw switch of the second hilted broadsword of target and intended recipient single-pole double throw
Switch is to be indirectly connected.
Step 606：Reception antenna receives the scatter echo letter that target is generated for detectable signal in a manner of horizontal polarization
Number.
In embodiments of the present invention, the polarization mode of reception antenna and the polarization mode of transmitting antenna are corresponding, that is, emit
Antenna uses horizontal polarization, reception antenna that horizontal polarization, transmitting antenna is then used to use vertical polarization, and reception antenna is then using vertical
Straight polarization.It should be noted that in other application scene, the polarization mode of reception antenna and the polarization mode of transmitting antenna are simultaneously
Not necessarily consistent, for example, transmitting antenna uses horizontal polarization, reception antenna is using vertical polarization or other rational polarization sides
Formula.
Step 607：Low-noise amplifier is amplified scatter echo signal.
Step 608：Vector network analyzer receives amplified scatter echo signal by switch matrix, and to being scattered back
Wave signal is analyzed.
The scatter echo signal that vector network analyzer can acquire different orientations is analyzed, to determine target
Scattering properties.
To sum up, each embodiment of the present invention at least has the following effects that：
1, in embodiments of the present invention, it when carrying out target scattering characteristics measurement, can be opened by computer controlled automatic
Matrix is closed, so that the reception antenna in different orientations is connected and worked, realizes the scattering properties to the different direction of target
It measures.And it is possible to by preset different measurement pattern in a computer, realize in different polarization modes, non-Tongfang
Under parallactic angle, comprehensive, deep measurement is carried out to the scattering properties of target.Compared with prior art, which does not need
Manual switching transceiver channel can reduce time of measuring, and then improve measurement efficiency.
2, in embodiments of the present invention, the channel handoff leg in switch matrix is isolated with polarization handoff leg, is improved
The electromagnetism interference performance of system.
3, in embodiments of the present invention, there are up to 248 2 line multistation converter channels inside switch driver, can drive
The high-speed switch of dynamic equivalent amount, to realize that angles of azimuth measures.
4, in embodiments of the present invention, which can be operated in wideband frequency range, realize that the big bandwidth of data is real
Apply acquisition.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of target scattering characteristics measuring system, it is characterised in that：Including computer, switch driver, vector network analysis
Instrument, switch matrix, transmitting antenna and at least two reception antennas；
The switch driver is connected with the computer, the switch matrix respectively, the switch matrix respectively with the arrow
Amount Network Analyzer, the transmitting antenna are connected at least two reception antenna, wherein residing for each reception antenna
Azimuth it is different；
The computer, for determining measurement pattern and at least two intended recipient antennas；According to the measurement pattern, to described
Switch driver sends firing order；According to the measurement pattern and at least two intended recipients antenna, to the switch
Driver transmits and receives instruction；
The switch driver is connected for controlling the switch matrix according to the firing order with the transmitting antenna；Root
At least two intended recipients antenna is controlled according to reception instruction to be connected with the switch matrix；
The transmitting antenna is used for when being connected with the switch matrix, to objective emission detectable signal；
The reception antenna is generated for when being connected with the switch matrix, receiving the target for the detectable signal
Scatter echo signal；
The vector network analyzer, for receiving the scatter echo signal by the switch matrix, and to the scattering
Echo-signal is analyzed.
2. target scattering characteristics measuring system according to claim 1, it is characterised in that：
The measurement pattern, including：Transmitting antenna horizontal polarization, or, transmitting antenna vertical polarization；
The switch matrix, including：Emit single-pole double-throw switch (SPDT)；
The transmitting single-pole double-throw switch (SPDT) is connected with the switch driver, the transmitting antenna respectively；
The switch driver is used for when the measurement pattern is transmitting antenna horizontal polarization, according to the firing order control
The first output end for making the transmitting single-pole double-throw switch (SPDT) is connected with the transmitting antenna；When the measurement pattern is transmitting antenna
When vertical polarization, the second output terminal of the transmitting single-pole double-throw switch (SPDT) and the transmitting antenna are controlled according to the firing order
Conducting；
The transmitting antenna is used for when being connected with the first output end of the transmitting single-pole double-throw switch (SPDT), with horizontal polarization
Mode is to the objective emission detectable signal；When being connected with the second output terminal of the transmitting single-pole double-throw switch (SPDT), with vertical
Polarized mode is to the objective emission detectable signal.
3. target scattering characteristics measuring system according to claim 1, it is characterised in that：
The measurement pattern, including：Reception antenna horizontal polarization, or, reception antenna vertical polarization；
The switch matrix, including：First hilted broadsword, six throw switch, at least one second hilted broadsword, six throw switch and at least two receive
Single-pole double-throw switch (SPDT)；
First hilted broadsword, six throw switch respectively with the switch driver, the six throw switch phase of at least one second hilted broadsword
Even；At least one second hilted broadsword, six throw switch is connected at least two receptions single-pole double-throw switch (SPDT)；Described at least two
A reception single-pole double-throw switch (SPDT) is connected at least two reception antenna, wherein at least two receptions single-pole double throw is opened
It closes and is corresponded at least two reception antenna；
The switch driver, for according to it is described receive instruction control the target output of six throw switch of the first hilted broadsword with
Six throw switch of the second hilted broadsword of target conducting, six throw switch of the second hilted broadsword of the target at least two target outputs respectively with phase
At least two intended recipient single-pole double-throw switch (SPDT)s conducting even；When the measurement pattern is reception antenna horizontal polarization, control
The first end of the intended recipient single-pole double-throw switch (SPDT) is connected with the connected intended recipient antenna；When the measurement pattern is
When reception antenna vertical polarization, the second end of the intended recipient single-pole double-throw switch (SPDT) and the intended recipient day being connected are controlled
Line is connected；
The reception antenna is used for when being connected with the first output end of connected reception single-pole double-throw switch (SPDT), with horizontal polarization
Mode receive the target be directed to the detectable signal generate scatter echo signal；It is opened when with the reception single-pole double throw being connected
When the second output terminal conducting of pass, the target is received in a manner of vertical polarization and is scattered back for what the detectable signal generated
Wave signal.
4. target scattering characteristics measuring system according to claim 1, it is characterised in that：Further comprise：At least two
Low-noise amplifier, wherein at least two low-noise amplifier is corresponded at least two reception antenna；
The low-noise amplifier is connected with the switch matrix, the reception antenna respectively；
The low-noise amplifier, for being amplified to the scatter echo signal；
The vector network analyzer, for receiving the amplified scatter echo signal by the switch matrix.
5. target scattering characteristics measuring system according to claim 1, it is characterised in that：
At least two reception antenna is distributed in using the target as on the circumference in the center of circle.
6. according to any target scattering characteristics measuring system in claim 1-5, it is characterised in that：The computer is logical
General purpose interface bus GPIB is crossed with the switch driver to be connected.
7. the target scattering characteristics measurement side of any target scattering characteristics measuring system in a kind of 1-6 based on claim
Method, it is characterised in that：Including：
Computer determines measurement pattern and at least two intended recipient antennas, according to the measurement pattern, is sent out to switch driver
Send firing order；
The switch driver controls switch matrix according to the firing order and is connected with transmitting antenna；
When being connected with the switch matrix, the transmitting antenna is to objective emission detectable signal；
The computer is sent according to the measurement pattern and at least two intended recipients antenna to the switch driver
Receive instruction；
The switch driver controls at least two intended recipients antenna and the switch matrix according to reception instruction
Conducting；
When being connected with the switch matrix, the reception antenna receives the target and is directed to the scattering that the detectable signal generates
Echo-signal；
Vector network analyzer receives the scatter echo signal by the switch matrix, and to the scatter echo signal into
Row analysis.
8. target scattering characteristics measurement method according to claim 7, it is characterised in that：
The measurement pattern, including：Transmitting antenna horizontal polarization, or, transmitting antenna vertical polarization；
The switch driver controls switch matrix according to the firing order and is connected with transmitting antenna, including：
When the measurement pattern is transmitting antenna horizontal polarization, the switch driver is according to described in firing order control
First output end of transmitting single-pole double-throw switch (SPDT) is connected with the transmitting antenna；
When the measurement pattern is transmitting antenna vertical polarization, the switch driver is according to described in firing order control
The second output terminal of transmitting single-pole double-throw switch (SPDT) is connected with the transmitting antenna；
It is described when being connected with the switch matrix, the transmitting antenna to objective emission detectable signal, including：
When with it is described transmitting single-pole double-throw switch (SPDT) the first output end be connected when, the transmitting antenna in a manner of horizontal polarization to
The objective emission detectable signal；
When with it is described transmitting single-pole double-throw switch (SPDT) second output terminal be connected when, the transmitting antenna in a manner of vertical polarization to
The objective emission detectable signal.
9. target scattering characteristics measurement method according to claim 7, it is characterised in that：
The measurement pattern, including：Reception antenna horizontal polarization, or, reception antenna vertical polarization；
The switch driver controls at least two intended recipients antenna and the switch matrix according to reception instruction
Conducting, including：
The switch driver is according to the target output and target for receiving instruction and controlling six throw switch of the first hilted broadsword
The conducting of second hilted broadsword, six throw switch, the second hilted broadsword of the target six throw switch at least two target outputs respectively be connected
At least two intended recipient single-pole double-throw switch (SPDT)s are connected；
When the measurement pattern is reception antenna horizontal polarization, the switch driver controls the intended recipient single-pole double throw
The first end of switch is connected with the connected intended recipient antenna；
When the measurement pattern is reception antenna vertical polarization, the switch driver controls the intended recipient single-pole double throw
The second end of switch is connected with the connected intended recipient antenna；
It is described when being connected with the switch matrix, the reception antenna receive the target for the detectable signal generate
Scatter echo signal, including：
When being connected with the first output end of connected reception single-pole double-throw switch (SPDT), the reception antenna is in a manner of horizontal polarization
It receives the target and is directed to the scatter echo signal that the detectable signal generates；
When being connected with the second output terminal of connected reception single-pole double-throw switch (SPDT), the switch driver is with the side of vertical polarization
Formula receives the target and is directed to the scatter echo signal that the detectable signal generates.
10. target scattering characteristics measurement method according to claim 7, it is characterised in that：Further comprise：
Low-noise amplifier is amplified the scatter echo signal；
The vector network analyzer receives the amplified scatter echo signal by the switch matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810162272.XA CN108414990A (en) | 2018-02-27 | 2018-02-27 | A kind of target scattering characteristics measuring system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810162272.XA CN108414990A (en) | 2018-02-27 | 2018-02-27 | A kind of target scattering characteristics measuring system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108414990A true CN108414990A (en) | 2018-08-17 |
Family
ID=63129207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810162272.XA Pending CN108414990A (en) | 2018-02-27 | 2018-02-27 | A kind of target scattering characteristics measuring system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108414990A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109597094A (en) * | 2018-10-26 | 2019-04-09 | 上海神添实业有限公司 | The complete polarization near-field scan method and system of general purpose vehicle based on unmanned plane |
| CN110289873A (en) * | 2019-05-29 | 2019-09-27 | 陕西飞机工业（集团）有限公司 | A kind of airborne radome electric performance test full frequency band microwave converting system |
| CN111404576A (en) * | 2020-03-24 | 2020-07-10 | RealMe重庆移动通信有限公司 | Radio frequency system and electronic equipment |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590795A (en) * | 2012-02-29 | 2012-07-18 | 中国电子科技集团公司第二十二研究所 | Microwave scattering property test system based on vector network analyzer |
| CN102590792A (en) * | 2012-02-29 | 2012-07-18 | 中国电子科技集团公司第二十二研究所 | L-wave-band shore-based sea clutter observation system based on vector network analyzer |
| CN103630761A (en) * | 2013-11-20 | 2014-03-12 | 中国电子科技集团公司第四十一研究所 | Multi-probe spherical near field channel calibration device and method |
| CN104280719A (en) * | 2014-10-30 | 2015-01-14 | 厦门大学 | Hybrid polarization double-channel ground penetrating radar system |
| CN104515907A (en) * | 2013-09-30 | 2015-04-15 | 上海霍莱沃电子系统技术有限公司 | Scattering parameter testing system and implementation method thereof |
| CN204316494U (en) * | 2015-01-23 | 2015-05-06 | 四川九洲空管科技有限责任公司 | A kind of two-way 1090ES Data-Link S mode answering machine |
| CN104868255A (en) * | 2015-05-05 | 2015-08-26 | 中国人民解放军总参谋部第六十研究所 | Ground multibeam electric controlled scanning measuring and controlling antenna for unmanned aerial vehicle |
| CN105846111A (en) * | 2016-03-29 | 2016-08-10 | 北京环境特性研究所 | Array antenna for UHF scattering test |
| CN105929395A (en) * | 2016-04-18 | 2016-09-07 | 浙江大学 | Electromagnetic imaging system and method employing oblique incident wave |
| CN106154240A (en) * | 2016-06-20 | 2016-11-23 | 西北工业大学 | A kind of polarization scattering matrix Fast measurement system and method |
| CN106443210A (en) * | 2016-12-03 | 2017-02-22 | 刘科宏 | Testing system and method for three-dimensional spatial radiation field phase of active base station antenna |
| CN206440777U (en) * | 2017-01-12 | 2017-08-25 | 深圳市新益技术有限公司 | A kind of Antenna testing system switched with multi-level radio-frequency |
-
2018
- 2018-02-27 CN CN201810162272.XA patent/CN108414990A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590795A (en) * | 2012-02-29 | 2012-07-18 | 中国电子科技集团公司第二十二研究所 | Microwave scattering property test system based on vector network analyzer |
| CN102590792A (en) * | 2012-02-29 | 2012-07-18 | 中国电子科技集团公司第二十二研究所 | L-wave-band shore-based sea clutter observation system based on vector network analyzer |
| CN104515907A (en) * | 2013-09-30 | 2015-04-15 | 上海霍莱沃电子系统技术有限公司 | Scattering parameter testing system and implementation method thereof |
| CN103630761A (en) * | 2013-11-20 | 2014-03-12 | 中国电子科技集团公司第四十一研究所 | Multi-probe spherical near field channel calibration device and method |
| CN104280719A (en) * | 2014-10-30 | 2015-01-14 | 厦门大学 | Hybrid polarization double-channel ground penetrating radar system |
| CN204316494U (en) * | 2015-01-23 | 2015-05-06 | 四川九洲空管科技有限责任公司 | A kind of two-way 1090ES Data-Link S mode answering machine |
| CN104868255A (en) * | 2015-05-05 | 2015-08-26 | 中国人民解放军总参谋部第六十研究所 | Ground multibeam electric controlled scanning measuring and controlling antenna for unmanned aerial vehicle |
| CN105846111A (en) * | 2016-03-29 | 2016-08-10 | 北京环境特性研究所 | Array antenna for UHF scattering test |
| CN105929395A (en) * | 2016-04-18 | 2016-09-07 | 浙江大学 | Electromagnetic imaging system and method employing oblique incident wave |
| CN106154240A (en) * | 2016-06-20 | 2016-11-23 | 西北工业大学 | A kind of polarization scattering matrix Fast measurement system and method |
| CN106443210A (en) * | 2016-12-03 | 2017-02-22 | 刘科宏 | Testing system and method for three-dimensional spatial radiation field phase of active base station antenna |
| CN206440777U (en) * | 2017-01-12 | 2017-08-25 | 深圳市新益技术有限公司 | A kind of Antenna testing system switched with multi-level radio-frequency |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109597094A (en) * | 2018-10-26 | 2019-04-09 | 上海神添实业有限公司 | The complete polarization near-field scan method and system of general purpose vehicle based on unmanned plane |
| CN109597094B (en) * | 2018-10-26 | 2021-08-31 | 上海神添实业有限公司 | All-polarization near-field scanning method and system of general vehicle based on unmanned aerial vehicle |
| CN110289873A (en) * | 2019-05-29 | 2019-09-27 | 陕西飞机工业（集团）有限公司 | A kind of airborne radome electric performance test full frequency band microwave converting system |
| CN110289873B (en) * | 2019-05-29 | 2021-09-14 | 陕西飞机工业（集团）有限公司 | Full-frequency-band microwave conversion system for testing electrical performance of airborne radome |
| CN111404576A (en) * | 2020-03-24 | 2020-07-10 | RealMe重庆移动通信有限公司 | Radio frequency system and electronic equipment |
| CN111404576B (en) * | 2020-03-24 | 2021-07-13 | RealMe重庆移动通信有限公司 | Radio frequency system and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105548729B (en) | A kind of method for fast measuring of array antenna radiation characteristic | |
| CN108414990A (en) | A kind of target scattering characteristics measuring system and method | |
| CN110764068B (en) | Multi-probe quasi-far field electromagnetic scattering section (RCS) extrapolation test system | |
| CN104360328B (en) | A kind of phased-array radar transmission channel far field calibration steps and system | |
| JP3245095U (en) | Spherical dual polarization phased array weather radar | |
| CN108471334B (en) | Method for testing and evaluating performance of data chain LPI | |
| CN201765324U (en) | Automatic tester of phased-array antenna | |
| CN106850086B (en) | Electromagnetic wave chamber based on array antenna | |
| CN107994956A (en) | Terminal, radio frequency front-end device and its electromagnetic wave absorption rate method of adjustment and system | |
| CN106405491B (en) | Unmanned plane based on software radio monitors system | |
| CN106405680B (en) | The monitoring method and system and control device of human body safety check instrument | |
| CN208272981U (en) | TREA multichannel test device | |
| CN111175748A (en) | Millimeter wave antenna array | |
| CN208766301U (en) | A kind of life detection radar of three-dimensional localization | |
| CN105842546B (en) | Electromagnetic Wave Propagation inverse of a matrix matrix solving method based on antenna radiation pattern information | |
| CN110045367A (en) | The device of cylindrical array antenna objective body three-dimensional imaging | |
| CN110411977A (en) | A kind of all-electronin terahertz tomographic imaging device and its control method | |
| CN106559275B (en) | A kind of throughput testing approach and device of multiple terminals | |
| CN105158757B (en) | A kind of radar Multichannel combination control box and its method of work | |
| CN110873824A (en) | Massive MIMO antenna test system and method | |
| CN104393940B (en) | Two-path model multi-path fading testing device and method for laboratory | |
| Liu et al. | LPI based optimal power and dwell time allocation for radar network system | |
| CN112578339B (en) | Multi-polarization mode combined array type ground penetrating radar antenna and control method thereof | |
| CN205643693U (en) | A pentahapto receiving and dispatching subassembly | |
| CN209311673U (en) | A kind of X-band decaying phase shift block |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180817 |
|
| RJ01 | Rejection of invention patent application after publication |