CN109660303A - Short-wave antenna performance evaluation system - Google Patents
Short-wave antenna performance evaluation system Download PDFInfo
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- CN109660303A CN109660303A CN201811446416.0A CN201811446416A CN109660303A CN 109660303 A CN109660303 A CN 109660303A CN 201811446416 A CN201811446416 A CN 201811446416A CN 109660303 A CN109660303 A CN 109660303A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of short-wave antenna performance evaluation systems, belong to field of communication technology.The system comprises: unmanned plane, aerial test equipment, radio-frequency receiving-transmitting equipment and central control equipment；The aerial test equipment is mounted on the unmanned plane, and the radio-frequency receiving-transmitting equipment is connect with short-wave antenna to be measured, and the radio-frequency receiving-transmitting equipment is used to receive the instruction of the central control equipment, and emits signal according to the described instruction control short-wave antenna to be measured；The performance number of the performance number for detecting the short-wave antenna to be measured, the short-wave antenna to be measured that will test is transferred to the central control equipment；The central control equipment is used to control the operation of the unmanned plane；Described instruction is sent to the radio-frequency receiving-transmitting equipment；Receive the performance number for the short-wave antenna to be measured that the radio-frequency receiving-transmitting equipment is sent；Receive the power amplifier output level value that the aerial test equipment is sent；According to the performance number of the short-wave antenna to be measured and the power amplifier output level value, the radiance of the short-wave antenna to be measured is assessed.
Description
Technical field
The present invention relates to field of communication technology, in particular to a kind of short-wave antenna performance evaluation system.
Background technique
Throat thoroughfare of the short-wave antenna as HF Wireless Communication system plays the overall performance of HF Wireless Communication system
Very important effect.The index of characterization short-wave antenna performance is broadly divided into two classes: a kind of main characterization antenna feed is electrical
Energy, such as voltage standing wave ratio, power capacity, ground resistance, this kind of index can accurately be surveyed by equipment such as Network Analyzers
Examination；Another kind of main characterization antenna radiation performance, such as gain, directional diagram out-of-roundness, beam position, beam angle, characterize
Antenna emits possessed by all directions of space or receives the ability of electromagnetic wave.
Antenna radiation performance index is to measure the key index of antenna radiation performance, and common short-wave antenna radiance refers to
Mapping method for testing are as follows: it is tested in the certain positions in ground by performance of the testing meter and instrument to antenna typical directions, it is this
Mode is only capable of can be carried out antenna spatiality sample testing, can not be tested comprehensively antenna performance.
Summary of the invention
The embodiment of the invention provides a kind of short-wave antenna performance evaluation systems, to realize short-wave antenna radiance index
Test.The technical solution is as follows:
The embodiment of the invention provides a kind of short-wave antenna performance evaluation system, the system comprises:
Unmanned plane, aerial test equipment, radio-frequency receiving-transmitting equipment and central control equipment；
The aerial test equipment is mounted on the unmanned plane；
The radio-frequency receiving-transmitting equipment is connect with short-wave antenna to be measured, and the radio-frequency receiving-transmitting equipment is for receiving the center control
The instruction of control equipment, and signal is emitted according to the described instruction control short-wave antenna to be measured；Detect the short-wave antenna to be measured
Performance number, the performance number for the short-wave antenna to be measured that will test is transferred to the central control equipment；
The central control equipment is used to control the operation of the unmanned plane；The finger is sent to the radio-frequency receiving-transmitting equipment
It enables；Receive the performance number for the short-wave antenna to be measured that the radio-frequency receiving-transmitting equipment is sent；Receive the aerial test equipment hair
The power amplifier output level value sent；According to the performance number of the short-wave antenna to be measured and the power amplifier output level value, described in assessment
The radiance of short-wave antenna to be measured.
In an implementation of the embodiment of the present invention, the aerial test equipment includes:
Short-wave antenna, the first power amplifier module, the first signal source, the first data exchange and control module, the first data radio station,
Fly control module and the first power module；First power amplifier module is electric with the short-wave antenna and first signal source simultaneously
Connection, first data exchange and control module simultaneously with first signal source, first data radio station and described fly
Control module electrical connection, first power amplifier module, first signal source, first data exchange and control module and described
First data radio station is electrically connected with first power module；
The short-wave antenna, for being communicated with the short-wave antenna to be measured；
The winged control module for obtaining the status information of the unmanned plane, and receives the central control equipment and sends
Flight control instruction, the unmanned plane is controlled according to the status information of the unmanned plane and the flight control instruction and is run；
First data exchange and control module, for obtain the unmanned plane status information and first function
The power amplifier output level value of amplification module, and the central control equipment is transferred to by first data radio station.
In an implementation of the embodiment of the present invention, the aerial test equipment further include:
900MHz number passes antenna and satellite antenna, the 900MHz number pass antenna and satellite antenna with the winged control module
Electrical connection.
In an implementation of the embodiment of the present invention, the radio-frequency receiving-transmitting equipment includes:
Second power amplifier module, second signal source, power detection module, the second data exchange and control module, the second number pass
Radio station and second power supply module；Second power amplifier module is electric with the short-wave antenna to be measured and the second signal source simultaneously
Connection, second data exchange and control module simultaneously with the second signal source, second data radio station and the function
The electrical connection of rate detection module, second power amplifier module, the second signal source, second data exchange and control module,
The power detection module and second data radio station are electrically connected with the second power supply module；
The power detection module, for detecting the performance number of the short-wave antenna to be measured；
Second data exchange and control module, for receiving the instruction of the central control equipment, and according to described
The instruction control short-wave antenna to be measured emits signal；When the shape for receiving the unmanned plane that the central control equipment is sent
When state information, the performance number of the short-wave antenna to be measured is controlled by the way that second data radio station transmission is described to the center
Equipment.
In an implementation of the embodiment of the present invention, the central control equipment includes:
Third data radio station, third data exchange and control module, fly control module data radio station and third power supply at host computer
Module；The third data exchange and control module simultaneously with the third data radio station, the upper mechatronics, it is described on
Position machine is electrically connected with the winged control module data radio station, the third data radio station, the third data exchange and control module,
The host computer and the winged control module data radio station are electrically connected with the third power module；
The third data exchange and control module, for by the winged control module data radio station to the aerial test
Equipment sends flight control instruction；The power amplifier output electricity that the aerial test equipment is sent is received by the third data radio station
Level values；It is sent and is instructed to the radio-frequency receiving-transmitting equipment by the third data radio station, and receive the radio-frequency receiving-transmitting equipment
The performance number of the short-wave antenna to be measured sent；
The host computer, the short-wave antenna to be measured for being received according to the third data exchange and control module
Performance number and the power amplifier output level value, assess the radiance of the short-wave antenna to be measured.
In an implementation of the embodiment of the present invention, the third data exchange and control module, are also used to store
The shortwave day to be measured that the power amplifier output level value and the radio-frequency receiving-transmitting equipment that the aerial test equipment is sent are sent
The performance number of line.
In an implementation of the embodiment of the present invention, the third data exchange and control module are also used to super
When crossing predetermined time interval and not receiving the power amplifier output level value that the aerial test equipment is sent, to the aerial test equipment
Transmission level inquiry instruction.
In an implementation of the embodiment of the present invention, the host computer, for the function to the short-wave antenna to be measured
The rate value and power amplifier output level value is modified and process of fitting treatment, and assess the out-of-roundness of the short-wave antenna to be measured, master
Lobe direction, main lobe width and front and back ratio.
In an implementation of the embodiment of the present invention, the central control equipment further includes Differential positioning station, described
Differential positioning station and the upper mechatronics.
In an implementation of the embodiment of the present invention, the radio-frequency receiving-transmitting equipment is also connect with standard short-wave antenna,
The radio-frequency receiving-transmitting equipment is also used to detect the performance number of the standard short-wave antenna, the standard short-wave antenna that will test
Performance number be transferred to the central control equipment；
The central control equipment is also used to performance number and the standard short-wave antenna according to the short-wave antenna to be measured
Performance number, assess the gain performance of the short-wave antenna to be measured.
Technical solution provided in an embodiment of the present invention has the benefit that
The embodiment of the present invention is logical with the short-wave antenna to be measured on ground by the way that aerial test equipment to be mounted on unmanned plane
Letter, while by the operation of central control equipment control unmanned plane, thus the short-wave antenna to be measured in specific position and ground
Communication, the performance number of short-wave antenna to be measured is detected by radio-frequency receiving-transmitting equipment, obtains power amplifier output electricity by aerial test equipment
Level values, central control equipment assess short-wave antenna to be measured according to the performance number and power amplifier output level value of short-wave antenna to be measured
Radiance both ensure that the comprehensive test to short-wave antenna performance, and use the aerial test equipment of UAV flight, test
Cost is relatively low.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of short-wave antenna performance evaluation system provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of aerial test equipment provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of radio-frequency receiving-transmitting equipment provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of central control equipment provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is a kind of structural schematic diagram of 201 performance evaluation system of short-wave antenna provided in an embodiment of the present invention.Referring to figure
1, which includes: unmanned plane 100, aerial test equipment 200, radio-frequency receiving-transmitting equipment 300 and central control equipment 400.
Aerial test equipment 200 is mounted on unmanned plane 100.Radio-frequency receiving-transmitting equipment 300 and short-wave antenna 500 to be measured connect
It connects, radio-frequency receiving-transmitting equipment 300 is used to receive the instruction of central control equipment 400, and controls short-wave antenna 500 to be measured according to instruction
Emit signal；The performance number of short-wave antenna 500 to be measured is detected, the performance number for the short-wave antenna to be measured 500 that will test is transferred to
Central control equipment 400.Central control equipment 400 is used to control the operation of unmanned plane 100；It is sent to radio-frequency receiving-transmitting equipment 300
Instruction；Receive the performance number for the short-wave antenna to be measured 500 that radio-frequency receiving-transmitting equipment 300 is sent；Aerial test equipment 200 is received to send
Power amplifier output level value；According to the performance number and power amplifier output level value of short-wave antenna 500 to be measured, short-wave antenna to be measured is assessed
500 radiance.
The embodiment of the present invention is logical with the short-wave antenna to be measured on ground by the way that aerial test equipment to be mounted on unmanned plane
Letter, while by the operation of central control equipment control unmanned plane, thus the short-wave antenna to be measured in specific position and ground
Communication, the performance number of short-wave antenna to be measured is detected by radio-frequency receiving-transmitting equipment, obtains power amplifier output electricity by aerial test equipment
Level values, central control equipment assess short-wave antenna to be measured according to the performance number and power amplifier output level value of short-wave antenna to be measured
Radiance both ensure that the comprehensive test to short-wave antenna performance, and use the aerial test equipment of UAV flight, test
Cost is relatively low.
Fig. 2 is a kind of structural schematic diagram of aerial test equipment 200 provided in an embodiment of the present invention.Referring to fig. 2, this is aerial
Test equipment 200 includes:
Short-wave antenna 201, the first power amplifier module 202, the first signal source 203, the first data exchange and control module 204,
First data radio station 205 flies control module 206 and the first power module 207；First power amplifier module 202 simultaneously with short-wave antenna 201
And first signal source 203 be electrically connected, the first data exchange and control module 204 are passed with the first signal source 203, first number simultaneously
Radio station 205 and winged control module 206 are electrically connected, the first power amplifier module 202, the first signal source 203, the first data exchange and control mould
Block 204 and the first data radio station 205 are electrically connected with the first power module 207.
Short-wave antenna 201, for being communicated with short-wave antenna 500 to be measured.Fly control module 206, for obtaining unmanned plane 100
Status information, and the flight control instruction of the transmission of central control equipment 400 is received, according to the status information of unmanned plane 100 and fly
Row control instruction controls unmanned plane 100 and runs.First data exchange and control module 204, for obtaining the state of unmanned plane 100
The power amplifier output level value of information and the first power amplifier module 202, and center control is transferred to by the first data radio station 205 and is set
Standby 400.
Wherein, aerial test equipment 200 is small-sized emitting and receiving equipment, in order to be mounted on unmanned plane.Short-wave antenna
201 using miniaturization shortwave loop antenna or whip antenna, easy to carry.
Wherein, flight control instruction can control equipment 400 by staff operation center and be configured.Flight control refers to
It enables for unmanned plane during flying path to be arranged, it is made to surround tested some contour plane of short-wave antenna flight according to track is subscribed.
In embodiments of the present invention, it is communicated by short-wave antenna 201 with short-wave antenna 500 to be measured, meanwhile, by flying control mould
206 control instruction of block controls unmanned plane 100 and runs, and on the different location of flight path, can periodically sample the first function
The power amplifier output level value of amplification module 202, is then returned to central control equipment 400, so that central control equipment 400 can
To complete the radiance of short-wave antenna 500 to be measured.
Further, in flight course, aerial test equipment 200 completes the non-uniform time interval of power amplifier output level value
Sampling flies control module 206 according to the same intervals period and returns drone status information.
The status information of unmanned plane 100 first can be sent to central control equipment by the first data exchange control module 204
400, then central control equipment 400 can issue level inquiry instruction, and the first data exchange and control module 204 obtain the at this time
The power amplifier output level value of one power amplifier module 202 is simultaneously transferred to central control equipment 400.
Wherein, status information may include the location information and posture information of unmanned plane.Location information may include height,
Latitude and longitude information.The posture information of unmanned plane can realize that sensor can be surveyed to be aerial by sensor (such as gyroscope)
Try a part of equipment 200.
Wherein, the first power module 207 can be battery, and unmanned plane is facilitated to carry.
Further, aerial test equipment 200 further include: 900MHz number passes antenna 208 and satellite antenna 209,900MHz
Number passes antenna 208 and satellite antenna 209 is electrically connected with winged control module 206.
Wherein, satellite antenna 209 is with satellite for being communicated, for example, with Beidou satellite communication, to realize to nobody
The positioning of the position of machine obtains the location information of unmanned plane 100.And 900MHz number passes antenna 208 then for setting with center control
Standby 400 communication, obtains the flight control instruction that central control equipment 400 is sent, and flies control module 206 and utilizes the flight control instruction
Unmanned plane 100 is controlled to fly.
Further, it is connected with antenna 250 on the first data radio station 205, which can pass day for 230MHz number
Line.
Further, aerial test equipment 200 further includes appliance case, the first power amplifier module 202, the first signal source 203,
One data exchange and control module 204 and the first data radio station 205 are arranged in appliance case, other modules are arranged outside appliance case
Portion.
Fig. 3 is a kind of structural schematic diagram of radio-frequency receiving-transmitting equipment 300 provided in an embodiment of the present invention.Referring to Fig. 3, the radio frequency
Transceiver 300 includes:
Second power amplifier module 301, second signal source 302, power detection module 303, the second data exchange and control module
304, the second data radio station 305 and second power supply module 306；Second power amplifier module 301 simultaneously with short-wave antenna 500 to be measured and
Second signal source 302 is electrically connected, the second data exchange and control module 304 simultaneously with second signal source 302, the second data radio station
305 and power detection module 303 be electrically connected, the second power amplifier module 301, second signal source 302, the second data exchange and control mould
Block 304, power detection module 303 and the second data radio station 305 are electrically connected with second power supply module 306.
Power detection module 303, for detecting the performance number of short-wave antenna 500 to be measured.Second data exchange and control mould
Block 304 for receiving the instruction of central control equipment 400, and controls short-wave antenna 500 to be measured according to instruction and emits signal；When
When receiving the status information of the unmanned plane 100 of the transmission of central control equipment 400, the performance number of short-wave antenna 500 to be measured is led to
It crosses the second data radio station 305 and is transferred to central control equipment 400.
In embodiments of the present invention, the second data exchange and control module 304 pass through the second power amplifier module 301 and second
Signal source 302 is detected to be measured short to control the transmitting-receiving of short-wave antenna 500 to be measured by power detection module 303 in the process
The performance number of wave antenna 500 is transferred to central control equipment 400.
Specifically, central control equipment 400 can issue power query and refer to when receiving the status information of unmanned plane 100
It enables, when receiving power query instruction, control power detection module 303 is detected for the second data exchange and control module 304
The performance number of short-wave antenna 500 to be measured, and the status information of the performance number of the short-wave antenna 500 to be measured and unmanned plane 100 is beaten
Packet occurs to central control equipment 400.Wherein, power query instruction and the performance number transmission of short-wave antenna 500 to be measured pass through
Second data radio station 305.
In embodiments of the present invention, the generation of shortwave pumping signal, the first function are responsible in the first signal source, second signal source
Amplification module, the second power amplifier module are responsible for the amplification of shortwave pumping signal.
In embodiments of the present invention, second power supply module 306 can provide 12v direct current.
Further, radio-frequency receiving-transmitting equipment 300 further includes appliance case, the second power amplifier module 301, second signal source 302, function
Rate detection module 303, the second data exchange and control module 304, the second data radio station 305 and second power supply module 306 are arranged
In appliance case, the antenna of short-wave antenna to be measured and the connection of the second data radio station is arranged outside appliance case.
Fig. 4 is a kind of structural schematic diagram of central control equipment 400 provided in an embodiment of the present invention.Referring to fig. 4, the center
Controlling equipment 400 includes:
Third data radio station 401, third data exchange and control module 402, host computer 403 fly control module data radio station
404 and third power module 405；Third data exchange and control module 402 simultaneously with third data radio station 401, host computer 403
Electrical connection, host computer 403 are electrically connected with control module data radio station 404 is flown, third data radio station 401, third data exchange and control
Molding block 402, host computer 403 and winged control module data radio station 404 are electrically connected with third power module 405.
Third data exchange and control module 402, for by flying control module data radio station 404 to aerial test equipment
200 send flight control instruction；The power amplifier output level that aerial test equipment 200 is sent is received by third data radio station 401
Value；It is sent and is instructed to radio-frequency receiving-transmitting equipment 300 by third data radio station 401, and receive what radio-frequency receiving-transmitting equipment 300 was sent
The performance number of short-wave antenna 500 to be measured.Host computer 403, for according to third data exchange and control module 402 receive to
The performance number and power amplifier output level value for surveying short-wave antenna 500, assess the radiance of short-wave antenna 500 to be measured.
In embodiments of the present invention, third data exchange and 402 one side of control module are by flying control module data radio station
404 communicate with aerial test equipment 200, realize the control to unmanned plane 100；On the other hand same by third data radio station 401
When communicated with radio-frequency receiving-transmitting equipment 300 and aerial test equipment 200, obtain power amplifier output level value and short-wave antenna to be measured
500 performance number.Power amplifier output level value that host computer 403 is got by third data exchange and control module 402 and
The performance number of short-wave antenna 500 to be measured completes the assessment to the radiance of short-wave antenna 500 to be measured.
Flight Control Software built in host computer 403 and appliance control interface software, wherein inside Flight Control Software individually
Flight monitoring and control interface in real time are generated, Google Maps is internally embedded, supports map denotation and Three-dimensional Display, support
Tracing point lectotype, manual input mode generate flight control instruction, Ke Yiwu by setting flying height and flying radius
Man-machine guarantee is flown according to desired trajectory.Host computer 403 supports real-time condition display, and the interface upper right corner being capable of real-time display
The information such as UAV Attitude, height, longitude and latitude, circle number, speed, and current track can be shown above map, and support path
Playback.Appliance control interface is generated by QT, mainly realizes entire test equipment Row control, mainly includes test item setting, empty
Middle test uploads options, the appliance control interface QT programs such as option, Performance Evaluation and can adjust automatically with ground test option, data
With Matlab dynamic link library and be capable of calling FEKO emulation tool generation certain type short-wave antenna directional diagram compare and analyze.
It is connected between third data exchange and control module 402 and host computer 403 using 422 serial ports, which is used to connect
It receives the control instruction of host computer and the performance number of power amplifier output level value and short-wave antenna to be measured 500 is sent to host computer
403 are post-processed.Fly to pass through universal serial bus (Universal between control module data radio station 404 and host computer 403
Serial Bus, USB) connection.
In embodiments of the present invention, third data exchange and control module 402, can be also used for storing aerial test equipment
The performance number for the short-wave antenna to be measured 500 that the 200 power amplifier output level value sent and radio-frequency receiving-transmitting equipment 300 are sent.
In storage, the status information of unmanned plane and the packing of power amplifier output level value can be stored in a register
In, the status information of unmanned plane and the packing of the performance number of short-wave antenna to be measured 500 are stored in another register, nothing is passed through
Man-machine status information can associate power amplifier output level value with the performance number of short-wave antenna 500 to be measured.
In embodiments of the present invention, third data exchange and control module 402 are also used to not more than predetermined time interval
When receiving the power amplifier output level value that aerial test equipment 200 is sent, to aerial 200 transmission level inquiry instruction of test equipment.
In embodiments of the present invention, since aerial test equipment 200 can periodically send power amplifier output level value to the
Three data exchanges and control module 402, therefore, when the function for not receiving the aerial transmission of test equipment 200 more than predetermined time interval
When putting output level value, third data exchange needs to inquire to aerial 200 transmission level of test equipment with control module 402 to be referred to
It enables, to obtain power amplifier output level value.Wherein, cycle time can be set as needed, such as 0.1 second.
In embodiments of the present invention, host computer 403, for the performance number and power amplifier output electricity to short-wave antenna 500 to be measured
Level values are modified and process of fitting treatment, and assess the out-of-roundness of short-wave antenna 500 to be measured, main lobe be directed toward, main lobe width with
And front and back ratio.
It should be noted that utilizing unmanned plane since GPS or big-dipper satellite positioning are using WGS-84 earth coordinates
When carrying out short-wave antenna performance test output processing, it is necessary to be converted to the coordinate value of unmanned plane Beidou centered on short-wave antenna
Spherical coordinate system under corresponding coordinate value.It is first earth rectangular co-ordinate by big earth spherical coordinate transformation, then by earth right angle
Coordinate is converted to geographic coordinate system.
When using aerial test equipment 200 and radio-frequency receiving-transmitting equipment 300 complete test data (short-wave antenna 500 to be measured
Performance number and power amplifier output level value) after sampling acquisition, it is necessary first to test data is handled to obtain antenna array performance is referred to
Mark.Data processing includes two parts content: mainly including dry to the external world in test process first is that being modified to test data
Disturb signal be modified, in conjunction with airborne short-wave antenna 201 radiation characteristic emulation to flight positioning and flight attitude caused by
Location error is modified and (namely radio-frequency receiving-transmitting equipment 300 is examined to the variation of the radiant power of airborne short-wave antenna 201
The variation of the performance number of the short-wave antenna to be measured 500 measured) it is modified；Second is that carrying out interpolation to revised test data
Fitting can specifically use mutative scale fractal interpolation algorithm, comprehensively consider 500 pattern function local detail of short-wave antenna to be measured
And global feature, suitable Uprightness proportion factor is chosen, front and back expansion is carried out centered on interpolation point, makes full use of and is inserted
The whole self-similarity with part under mutative scale of value function, obtains the directional diagram of short-wave antenna 500 to be measured, according to direction figure
Obtain the parameters such as out-of-roundness, main lobe direction, main lobe width and front and back ratio.
Wherein, in conjunction with the radiation characteristic emulation of airborne short-wave antenna 201 to position caused by flight positioning and flight attitude
Setting error and being modified includes: two aspects of location error amendment and pose compensation.
Location error amendment may include the calculating that binding site compensating operator realizes tested receiving antenna error factor.Cause
For ideally, the position (unmanned plane position) of each sampled point should be and central point (central control equipment 400 and radio frequency
The position of transceiver 300) constant distance, when the location information of unmanned plane is there are when deviation, according to the deviation to test number
According to compensating.Pose compensation may include that short-wave antenna 201 is constructed by emulation tool in the radiation characteristic of unmanned aerial vehicle platform
Emulation is tested the calculating of 500 error of short-wave antenna in conjunction with the radiation characteristic the Realization of Simulation.Because ideally, on unmanned plane
Short-wave antenna 201 should be isotropic ideal point source, since unmanned plane is in flight, there are posture (course angles, rolling
Angle, pitch angle) variation, this will will lead to, and that the institute of short-wave antenna 500 is tested under the carrier coordinate system centered on unmanned plane is in place
It sets corresponding pitching and azimuth plane to receive power there are deviations, it is therefore desirable to according to the radiation characteristic of airborne short-wave antenna 201
Simulation result compensates test data.
In embodiments of the present invention, central control equipment 400 can also include Differential positioning station 406, Differential positioning station 406
It is electrically connected with host computer 403.It is connected between Differential positioning station 406 and host computer 403 by Universal USB.Differential positioning station is used for
Centered on control equipment 400 is unified provides time, not additional GPS module, it is ensured that the synchronization of time with uniformly.
Further, central control equipment 400 can also include Switching Power Supply 407, the input terminal of Switching Power Supply 407 and the
Three power modules 405 electrical connection, two output ends of Switching Power Supply 407 respectively with third data radio station 401 and third data
Exchange is electrically connected with control module 402.
In embodiments of the present invention, radio-frequency receiving-transmitting equipment 300 is also connect with standard short-wave antenna 201, radio-frequency receiving-transmitting equipment
300 are also used to the performance number of examination criteria short-wave antenna 201, and the performance number for the standard short-wave antenna 201 that will test is transferred to
Central control equipment 400.
Central control equipment 400 is also used to the function of performance number and standard short-wave antenna 201 according to short-wave antenna 500 to be measured
Rate value assesses the gain performance of short-wave antenna 500 to be measured.
Since the gain performance of short-wave antenna 500 to be measured needs to compare with standard short-wave antenna 201, so test increases
It when beneficial performance, needs in two stages, a stage tests the data of short-wave antenna 500 to be measured, another stage testing standard
The data of short-wave antenna 201 determine the gain performance of short-wave antenna 500 to be measured according to the test data in two stages.It needs
Illustrate, in two stages, the flight path setting of unmanned plane is identical.
Wherein, standard short-wave antenna 201 includes the quasi- standard antenna of vertical polarized antenna and the quasi- day of horizontally-polarized antenna fiducial mark
Line, wherein the quasi- standard antenna of horizontally-polarized antenna uses length and the adjustable half wavelength dipoles sub-antenna of antenna height.Pass through survey
The quasi- antenna electromagnetic wave energy distribution situation of fiducial mark is tried, compares, obtains with 500 electromagnetic wave energy distribution situation of short-wave antenna to be measured
Obtain the gain performance of short-wave antenna 500 to be measured.
Further, central control equipment 400 further includes appliance case, third data radio station 401, third data exchange and control
Molding block 402 and Switching Power Supply 407 are arranged in appliance case, other modules are arranged outside appliance case.
In embodiments of the present invention, the first, second and third data exchange and control module may each comprise data exchange
With control panel and RAM card.
Further, when testing beginning, staff passes through the working condition that central control equipment 400 is arranged in host computer
To test evaluation profile, 400 self-test of central control equipment in the air, and upload self-test information.Staff is arranged using host computer
The flight path parameter of aerial unmanned plane.The setting aerial test equipment 200 of unmanned plane is transmission state, radio-frequency receiving-transmitting equipment 300
For reception state, while controlling unmanned plane and taking off.Then, the performance test of short-wave antenna is completed.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of short-wave antenna performance evaluation system, which is characterized in that the system comprises:
Unmanned plane, aerial test equipment, radio-frequency receiving-transmitting equipment and central control equipment；
The aerial test equipment is mounted on the unmanned plane；
The radio-frequency receiving-transmitting equipment is connect with short-wave antenna to be measured, and the radio-frequency receiving-transmitting equipment is set for receiving the center control
Standby instruction, and signal is emitted according to the described instruction control short-wave antenna to be measured；Detect the function of the short-wave antenna to be measured
The performance number of rate value, the short-wave antenna to be measured that will test is transferred to the central control equipment；
The central control equipment is used to control the operation of the unmanned plane；Described instruction is sent to the radio-frequency receiving-transmitting equipment；
Receive the performance number for the short-wave antenna to be measured that the radio-frequency receiving-transmitting equipment is sent；Receive what the aerial test equipment was sent
Power amplifier output level value；According to the performance number of the short-wave antenna to be measured and the power amplifier output level value, assess described to be measured
The radiance of short-wave antenna.
2. system according to claim 1, which is characterized in that the aerial test equipment includes:
Short-wave antenna, the first power amplifier module, the first signal source, the first data exchange and control module, fly control at the first data radio station
Module and the first power module；First power amplifier module is electrically connected with the short-wave antenna and first signal source simultaneously
Connect, first data exchange and control module simultaneously with first signal source, first data radio station and the winged control
Module electrical connection, first power amplifier module, first signal source, first data exchange and control module and described the
One data radio station is electrically connected with first power module；
The short-wave antenna, for being communicated with the short-wave antenna to be measured；
The winged control module for obtaining the status information of the unmanned plane, and receives flying for the central control equipment transmission
Row control instruction controls the unmanned plane according to the status information of the unmanned plane and the flight control instruction and runs；
First data exchange and control module, for obtain the unmanned plane status information and the first power amplifier mould
The power amplifier output level value of block, and the central control equipment is transferred to by first data radio station.
3. system according to claim 2, which is characterized in that the aerial test equipment further include:
900MHz number passes antenna and satellite antenna, and the 900MHz number passes antenna and satellite antenna is electrically connected with the winged control module
It connects.
4. system according to claim 1, which is characterized in that the radio-frequency receiving-transmitting equipment includes:
Second power amplifier module, second signal source, power detection module, the second data exchange and control module, the second data radio station
And second power supply module；Second power amplifier module is electrically connected with the short-wave antenna to be measured and the second signal source simultaneously
Connect, second data exchange and control module simultaneously with the second signal source, second data radio station and the power
Detection module electrical connection, second power amplifier module, the second signal source, second data exchange and control module, institute
It states power detection module and second data radio station is electrically connected with the second power supply module；
The power detection module, for detecting the performance number of the short-wave antenna to be measured；
Second data exchange and control module, for receiving the instruction of the central control equipment, and according to described instruction
Control the short-wave antenna transmitting signal to be measured；When the state letter for receiving the unmanned plane that the central control equipment is sent
When breath, the performance number of the short-wave antenna to be measured is set by the way that second data radio station transmission is described to center control
It is standby.
5. system according to claim 1, which is characterized in that the central control equipment includes:
Third data radio station, third data exchange and control module, fly control module data radio station and third power supply mould at host computer
Block；The third data exchange and control module are described upper simultaneously with the third data radio station, the upper mechatronics
Machine is electrically connected with the winged control module data radio station, the third data radio station, the third data exchange and control module, institute
It states host computer and the winged control module data radio station is electrically connected with the third power module；
The third data exchange and control module, for by the winged control module data radio station to the aerial test equipment
Send flight control instruction；The power amplifier output level that the aerial test equipment is sent is received by the third data radio station
Value；It is sent and is instructed to the radio-frequency receiving-transmitting equipment by the third data radio station, and receive the radio-frequency receiving-transmitting equipment hair
The performance number of the short-wave antenna to be measured sent；
The host computer, the function of the short-wave antenna to be measured for being received according to the third data exchange and control module
Rate value and the power amplifier output level value assess the radiance of the short-wave antenna to be measured.
6. system according to claim 5, which is characterized in that the third data exchange and control module are also used to deposit
Store up the power amplifier output level value that the aerial test equipment is sent and the shortwave to be measured that the radio-frequency receiving-transmitting equipment is sent
The performance number of antenna.
7. system according to claim 5, which is characterized in that the third data exchange and control module are also used to
When not receiving the power amplifier output level value that the aerial test equipment is sent more than predetermined time interval, set to the aerial test
Standby transmission level inquiry instruction.
8. system according to claim 5, which is characterized in that the host computer, for the short-wave antenna to be measured
The performance number and power amplifier output level value is modified and process of fitting treatment, and assess the short-wave antenna to be measured out-of-roundness,
Main lobe direction, main lobe width and front and back ratio.
9. system according to claim 5, which is characterized in that the central control equipment further includes Differential positioning station, institute
State Differential positioning station and the upper mechatronics.
10. -9 described in any item systems according to claim 1, which is characterized in that the radio-frequency receiving-transmitting equipment is also short with standard
Wave antenna connection, the radio-frequency receiving-transmitting equipment is also used to detect the performance number of the standard short-wave antenna, will test described in
The performance number of standard short-wave antenna is transferred to the central control equipment；
The central control equipment is also used to the function of performance number and the standard short-wave antenna according to the short-wave antenna to be measured
Rate value assesses the gain performance of the short-wave antenna to be measured.
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| CN201811446416.0A CN109660303B (en) | 2018-11-29 | 2018-11-29 | Short wave antenna performance evaluation system |
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| CN201811446416.0A CN109660303B (en) | 2018-11-29 | 2018-11-29 | Short wave antenna performance evaluation system |
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| CN112653525A (en) * | 2019-10-10 | 2021-04-13 | 联合汽车电子有限公司 | Test system |
| CN117713962A (en) * | 2023-12-08 | 2024-03-15 | 北斗天汇（北京）科技有限公司 | System and method for evaluating performance of short wave antenna |
| CN117879736A (en) * | 2024-03-13 | 2024-04-12 | 中国人民解放军海军工程大学 | Short wave environment noise measuring method and device based on vector antenna |
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