CN108226885A - Disturbed test system between millimetre-wave radar and radio astronomy - Google Patents
Disturbed test system between millimetre-wave radar and radio astronomy Download PDFInfo
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- CN108226885A CN108226885A CN201711448698.3A CN201711448698A CN108226885A CN 108226885 A CN108226885 A CN 108226885A CN 201711448698 A CN201711448698 A CN 201711448698A CN 108226885 A CN108226885 A CN 108226885A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- 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
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Abstract
The present invention provides the disturbed test systems between a kind of metre wave radar and radio astronomy.Wherein, which includes：Electromagnetic shielding chamber；With the electromagnetic horn of the frequency band match of tested millimetre-wave radar, electromagnetic shielding interior is arranged on, electromagnetic horn is less than predetermined value with millimetre-wave radar face and distance；Radar simulator is arranged on the electromagnetic shielding interior, and the signal input part of the radar simulator is connect with electromagnetic horn, for simulating electromagnetic environment and the current measuring distance under preset test environment；High-precision frequency spectrograph, it is indoor to be arranged on the electromagnetic shielding, the signal input part of the high-precision frequency spectrograph and the signal output end of radar simulator connect, and for analog radio astronomy, the signal input part exported from the high-precision frequency spectrograph is input to the signal strength in the high-precision frequency spectrograph.By the present invention, the complexity of result acquisition and error-prone property are reduced, avoids a large amount of consumption of manpower and materials in practical field testing.
Description
Technical field
The present invention relates to intelligent transportation applied technical field, more particularly between a kind of millimetre-wave radar and radio astronomy
Disturbed test system.
Background technology
Advanced driving assistance system (ADAS, Advanced Driver Assistant Systems) is to utilize to be mounted on
Various kinds of sensors on automobile constantly perceives ambient enviroment in vehicle traveling process, collects data, carries out static, goer
Identification, detecting and the tracking of body, and navigation instrument map datum, carry out the operation and analysis of system, so as to allow driving in advance
Person perceives the danger that may occur, and is effectively increased the comfortableness and security of car steering.The sensor that ADAS is used is main
There are camera, radar, laser and ultrasonic wave etc., light, heat, pressure or other for monitoring the variable of vehicle condition can be detected,
It is usually located at the positions such as vehicle front and back, side, quadrangle, bottom and top.
Millimetre-wave radar is the radar for being operated in millimeter wave band.Millimeter wave typically refers to frequency as 30~300GHz, wave
The radio wave of a length of 1~10mm.Compared with the other sensors such as ultrasonic wave, camera, infrared ray and laser, millimetre-wave radar
Have high-precision, high-resolution, detection performance stabilization, high-penetration, all weather operations and do not influenced etc. by synoptic climate very much
Advantage, at present, millimetre-wave radar are mainly used for the multiple functions such as ACC, AEB, BSD, LCA and SAR imaging as automobile sensor.
Radio astronomy service be using radio reception technology as observation method, by measure receive radio strength,
Frequency spectrum and polarization equivalent, observe all celestial bodies in universe, unknown including the solar system, all galaxies in the milky way galaxy and other universe
Space.Radio astronomy service all has natural science rational approach, aerospace engineering development, universe exploration etc. very heavy
The meaning wanted.Therefore International Telecommunication Union (ITU, International Telecommunication Union) is in radio
Repeatedly refer to that any business must not cause harmful interference to radio astronomy service in frequency partition regulation and radio regulation(s).It penetrates
Main tool of the electric observatory as radio astronomy service, it is general only to receive the radio radiation from cosmic radio source, not to
Outer any radio wave of transmitting, will not interfere other any telecommunication services.But own is to extraneous electromagnetic interference
It is very sensitive.
Since all kinds of radio traffics (public mobile communication, radio-positioning, radio astronomy, radar etc.) are required for using
Certain frequency and the radio resource of bandwidth complete respective function, but radio in transmission process can by direct-coupling or
Electromagnetic energy is leaked into other frequency ranges or due to power is excessive with emission mechanism by person's INDIRECT COUPLING, causes other
Relevant radio service feature declines, deterioration even can not work normally.Therefore, the interference co-existence research between different business
And test job, radio-frequency spectrum is divided and the radio frequency parameter index of wireless device determines there is very important meaning
Justice.
At present, the disturbed test between different business is mainly the following method：
(1) theoretical calculation uses radio frequency parameter and radio astronomy service parameter in known millimetre-wave radar, according to
The interference effect factor and environment between millimetre-wave radar business and radio astronomy service, by establish corresponding mathematical model into
Row theoretical calculation requires to do come the theory determined between millimetre-wave radar and radio astronomy by the protection limit value of radio astronomy service
Disturb situation and theoretical guard space.
(2) practical field testing, place practical millimetre-wave radar or drive equipped with millimetre-wave radar automobile, by
The disturbed situation of radio astronomy service is observed at the different distance of radio observatory, determines the reality between two kinds of business
Disturbed condition and real protection distance.
Mainly there are three the shortcomings that aspect for current theoretical calculation：First, the millimetre-wave radar in theoretical calculation parameter
Radio frequency parameter is the arrange parameter of radar, and launching target is often with arrange parameter there are deviation under actual conditions, thus
It is easy to cause the deviation of final calculation result；Second, the actual environment of radio observatory is extremely complex (including high mountain, Plain, gloomy
The various environment such as woods, building, synoptic climate), founding mathematical models can only be directed to than more typical ideal situation, can not be contained
The most complex environments of lid；Third, theoretical calculation need to carry out complicated calculations using various models, analyze complicated cumbersome, calculation amount
Greatly, result of calculation easily malfunctions.
Existing practical field testing mainly has the shortcomings that three aspects：First, millimetre-wave radar and radio day are not being determined
Actual test is carried out between text under disturbed condition, traffic interference is easily caused to radio astronomy, and this is abnormally dangerous and not by
Allow；Second, actual environment bottom is made an uproar very high, bad environments, and signal easily generates attenuation, and test result in itself can be by day
The influence of the factors such as gas uncertainty and unknown radio interference；Third, actual test, which generally requires, is largely tested, covering
Various environment, this is resulted in, and workload is very big, needs to expend huge man power and material.
Therefore, the interference co-existence situation between millimetre-wave radar and radio astronomy is studied, by reasonable effective mode to milli
The interference co-existence situation of metre wave radar and radio astronomy service tested (since radio astronomy service only receives radio wave,
Interference will not be generated to millimetre-wave radar, therefore only need to test interference of the millimetre-wave radar to radio astronomy), to determine millimeter
The disturbed condition and radio astronomy service guard space of wave radar and radio astronomy become current urgent problem to be solved.
Invention content
In view of the above problems, it is proposed that the present invention overcomes the above problem in order to provide one kind or solves at least partly
It states the disturbed test system between the millimetre-wave radar of problem and radio astronomy and carries out the method for disturbed test using it.
One side according to the present invention provides the disturbed test system between a kind of millimetre-wave radar and radio astronomy, packet
It includes：Electromagnetic shielding chamber, the test site as disturbed test；With the loudspeaker day of the frequency band match of tested millimetre-wave radar
Line, is arranged on the electromagnetic shielding interior, and the electromagnetic horn is less than predetermined value with the millimetre-wave radar face and distance；Thunder
Up to simulator, the electromagnetic shielding interior is arranged on, the signal input part of the radar simulator is connect with the electromagnetic horn,
For simulating electromagnetic environment and the current measuring distance under preset test environment；High-precision frequency spectrograph is arranged on the electromagnetic screen
Interior is covered, the signal input part of the high-precision frequency spectrograph is connect with the signal output end of the radar simulator, for simulating
Radio astronomy, the signal that the signal input part exported from the high-precision frequency spectrograph is input in the high-precision frequency spectrograph are strong
Degree.
Optionally, it further includes：First frequency mixer is connected between the electromagnetic horn and the radar simulator.
Optionally, it further includes：Second frequency mixer is connected between the radar simulator and the high-precision frequency spectrograph.
Optionally, the radar simulator further includes：Parameter input module, for receive externally input environmental parameter and
Measuring distance parameter determines the preset test environment and current measuring distance.
Optionally, it further includes：Tester, for the signal strength of the output of the high-precision frequency spectrograph to be penetrated with preset
The protection limit value of electric astronomy service is compared, and according to comparison result, is judged under preset test environment and current measuring distance,
With the presence or absence of interference between the tested millimetre-wave radar and radio astronomy.
Another aspect according to the present invention provides a kind of side that disturbed test is carried out using above-mentioned disturbed test system
Method, including：The electromagnetic horn of the disturbed test system receives the radar signal that tested millimetre-wave radar is sent out, by radar
Signal is input to the signal input part of the radar simulator of the disturbed test system；The current test of radar simulator simulation
Electromagnetic environment under environment, determine its signal input part input radar signal transmit under the electromagnetic environment currently test away from
Guinea pig signal from after, and the guinea pig signal is exported from the signal output end of the radar simulator；It is described
Guinea pig signal is inputted from the signal input part of the high-precision frequency spectrograph of the disturbed test system, the high-precision frequency spectrograph
Export the signal strength being input to from the signal input part of the high-precision frequency spectrograph in the high-precision frequency spectrograph；By the height
The protection limit value of signal strength and preset radio astronomy service of precision frequency spectrograph output is compared, according to comparison result,
Judge under preset test environment and current measuring distance whether deposited between the tested millimetre-wave radar and radio astronomy
It is interfering.
Optionally, radar signal is input to the signal input part of the radar simulator of the disturbed test system, including：
Radar signal is input to the first frequency mixer of the disturbed test system, after first frequency mixer mixing, is input to institute
State the signal input part of the radar simulator of disturbed test system.
Optionally, the signal input part of the guinea pig signal from the high-precision frequency spectrograph of the disturbed test system is defeated
Enter, including：The guinea pig signal is input to the second frequency mixer of the disturbed test system, is mixed through second frequency mixer
After frequency, from the signal input part input of the high-precision frequency spectrograph of the disturbed test system.
Optionally, the method further includes：The environmental parameter and measuring distance of the radar simulator response external input
Parameter determines the preset test environment and the current measuring distance.
Optionally, judge to whether there is interference between the tested millimetre-wave radar and radio astronomy, including：If
The intensity of the output signal is higher than the protection limit value, it is determined that under current measuring distance, the tested millimeter wave
There is interference between radar and radio astronomy；If the intensity of the output signal is less than the protection limit value, it is determined that is working as
Under preceding measuring distance, there is no interference between the tested millimetre-wave radar and radio astronomy；If the output signal
Intensity be equal to the protection limit value, it is determined that current measuring distance for the tested millimetre-wave radar and radio astronomy it
Between guard space.
It in the embodiment of the present invention, is tested with practical tested millimetre-wave radar, ensure that millimeter wave thunder in test
Up to the real reliability of input parameter, the various complex electromagnetic environments simulated by radar simulator can reach to actual environment
Various dimensions cover in all directions, avoid the influence of weather uncertainty and unknown radio interference, also, test result can be with
It is directly read by tester, the complexity of result acquisition and error-prone property is reduced, in addition, being substituted by high-precision frequency spectrograph
Radio astronomy avoids the adverse effect interfered in actual test to radio astronomy, in addition, can be with by radar simulator
Different measuring distance parameters and test are set, avoid a large amount of consumption of manpower and materials in practical field testing.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, below the special specific embodiment for lifting the present invention.
According to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this field
Technical staff will become clear.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 shows the frame of the disturbed test system between millimetre-wave radar according to an embodiment of the invention and radio astronomy
Structure schematic diagram；
Fig. 2 shows the disturbed test systems between millimetre-wave radar according to another embodiment of the present invention and radio astronomy
Configuration diagram；
Fig. 3 shows a kind of disturbed test using between millimetre-wave radar and radio astronomy according to an embodiment of the invention
System carries out the method flow diagram of disturbed test；And
Fig. 4 shows that a kind of interference using between millimetre-wave radar and radio astronomy according to another embodiment of the present invention is surveyed
Test system carries out the method flow diagram of disturbed test.
Specific embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.
It is resolved according to world's radio conference (WRC), the frequency range that millimetre-wave radar business can use is concentrated mainly on 76-
Between 81GHz.It is divided and provided according to radio frequency, the main business of the frequency range further includes radio astronomy.According to national laws
It resolves with WRC, radio astronomy belongs to the business of focused protection, any other business must not cause harmful interference to the business.Cause
This, it is that a pole needs the technology solved to ask that test how is accurately carried out to the interference co-existence of millimetre-wave radar and radio astronomy
Topic.
Therefore, an embodiment of the present invention provides a kind of interference by between laboratory realization millimetre-wave radar and radio astronomy
Testing scheme is tested with practical tested millimetre-wave radar, ensure that the true of millimetre-wave radar input parameter in test
Real reliability, the various complex electromagnetic environments simulated by radar simulator can reach to the various dimensions of actual environment in all directions
Covering, avoids the influence of weather uncertainty and unknown radio interference, also, test result can directly pass through tester
It reads, reduces the complexity of result acquisition and error-prone property, in addition, substituting radio astronomy by high-precision frequency spectrograph, avoid
The adverse effect interfered in actual test to radio astronomy, in addition, different surveys can be set by radar simulator
Distance parameter and test are tried, avoids solving a large amount of consumption of manpower and materials in practical field testing.
The frame of disturbed test systems of the Fig. 1 between a kind of millimetre-wave radar provided in an embodiment of the present invention and radio astronomy
Structure schematic diagram, as shown in Figure 1, the system mainly includes：With the electromagnetic horn of the frequency band match of tested millimetre-wave radar 20
100, the electromagnetic horn 100 is less than predetermined value with 20 face of millimetre-wave radar and distance；Radar simulator 110, letter
Number input terminal is connect with the electromagnetic horn 100, for simulating electromagnetic environment and the current measuring distance under preset test environment；
High-precision frequency spectrograph 120, signal input part is connect with the signal output end of the radar simulator 110, for analog radio
Astronomy exports strong to the signal in the high-precision frequency spectrograph from the signal of the signal input part of high-precision frequency spectrograph input
Degree；Electromagnetic shielding chamber 160, the test site as disturbed test.In a particular application, tested millimetre-wave radar and dry
The each component part for disturbing test system is arranged in electromagnetic shielding chamber 160, thereby may be ensured that test result will not be by
External electromagnetic interference, it is ensured that the accuracy of test result.
In embodiments of the present invention, in order to ensure that electromagnetic horn 100 can get tested millimeter wave as far as possible
The radar signal that radar 20 is sent, electromagnetic horn 100 are closely set with tested millimetre-wave radar 20, for example, at a distance of several
Centimetre etc., the specific embodiment of the present invention is not construed as limiting.
In embodiments of the present invention, current measuring distance tests the distance between millimetre-wave radar and radio astronomy,
In specific test, current measuring distance can be set according to concrete condition.
In a particular application, the signal strength that user can export according to high-precision frequency spectrograph 120 judges described tested
Millimetre-wave radar and radio astronomy between with the presence or absence of interference.For example, user can be by the output of the high-precision frequency spectrograph
The protection limit value of signal strength and preset radio astronomy service be compared, according to comparison result, judge to test currently
Under environment and current measuring distance, with the presence or absence of interference between the tested millimetre-wave radar and radio astronomy.
In a particular application, electromagnetic horn 100, radar simulator 110 and high-precision frequency spectrograph 120 can pass through radio frequency line
Connection.
Disturbed test system between the above-mentioned millimetre-wave radar provided through the embodiment of the present invention and radio astronomy, with reality
The tested millimetre-wave radar on border is tested, and be ensure that the real reliability of millimetre-wave radar input parameter in test, is passed through
The various complex electromagnetic environments of radar simulator simulation can reach covers the various dimensions of actual environment in all directions, avoids day
The influence of gas uncertainty and unknown radio interference, also, test result can directly be read by tester, and reduction finishes
The complexity and error-prone property that fruit obtains, in addition, substituting radio astronomy by high-precision frequency spectrograph, it is right in actual test to avoid
The adverse effect that radio astronomy interferes, in addition, different measuring distance parameters and survey can be set by radar simulator
Examination, avoids a large amount of consumption of manpower and materials in practical field testing.
In an optional embodiment of the embodiment of the present invention, millimeter wave frequency band is not supported in radar simulator 110
In the case of, then it also needs to increase frequency mixer between electromagnetic horn 100 and radar simulator 110, therefore, as shown in Fig. 2, this is dry
Disturbing test system can also include：First frequency mixer 140, be connected to the electromagnetic horn 100 and the radar simulator 110 it
Between.The radar signal exported by the first frequency mixer 140 to electromagnetic horn 100 is mixed, and can will enter into radar simulation
The frequency of the radar signal of device 110 is adjusted to the frequency range of the support of radar simulator 110, extends the selection of radar simulator 110
Range.
In an optional embodiment of the embodiment of the present invention, high-precision frequency spectrograph 120 does not support millimeter wave frequency band, then
It also needs to increase by a frequency mixer between radar simulator 110 and high-precision frequency spectrograph 120, therefore, as shown in Fig. 2, the interference
Test system can also include：Second frequency mixer 150 is connected to the radar simulator 110 and the high-precision frequency spectrograph 120
Between.The radar signal exported by the second frequency mixer 150 to radar simulator 110 is mixed, and can will enter into high-precision
The frequency for spending the radar signal of frequency spectrograph 120 is adjusted to the frequency range of the support of high-precision frequency spectrograph 120, extends high-precision frequency spectrograph
120 range of choice.
In an optional embodiment of the embodiment of the present invention, in order to which the test wrapper of radar simulator simulation can be changed
Border and measuring distance, radar simulator 110 can also include：Parameter input module, for receiving externally input environmental parameter
With measuring distance parameter, the preset test environment and current measuring distance are determined.In a particular application, parameter input module can
Think the external input devices such as keyboard, user can input different environmental parameters by parameter input module and measuring distance is joined
Number so as to test under same environment, under different measuring distances, is done between tested millimetre-wave radar and radio astronomy
It disturbs under situation and varying environment, under same measuring distance, feelings is interfered between tested millimetre-wave radar and radio astronomy
Condition can also be tested under varying environment difference measuring distance, disturbed condition between tested millimetre-wave radar and radio astronomy,
The test under various dimensions that may be present in practice can be thus achieved.
In an optional embodiment of the embodiment of the present invention, as shown in Fig. 2, the disturbed test system can also wrap
It includes：Tester 130, for by the protection of the signal strength of the output of the high-precision frequency spectrograph and preset radio astronomy service
Limit value is compared, and according to comparison result, is judged under preset test environment and current measuring distance, the tested millimeter
With the presence or absence of interference between wave radar and radio astronomy.It, can be by instrument without user by the optional embodiment
Judge to simplify the operation of user with the presence or absence of interference between tested millimetre-wave radar and radio astronomy.
A kind of method that disturbed test is carried out using above-mentioned disturbed test system is additionally provided according to embodiments of the present invention.
Fig. 3 is according to a kind of method that disturbed test is carried out using above-mentioned disturbed test system provided in an embodiment of the present invention
Flow chart, as shown in figure 3, this method may comprise steps of：
Step S301, the electromagnetic horn of disturbed test system receive the radar signal that tested millimetre-wave radar is sent out,
Radar signal is input to the signal input part of the radar simulator of the disturbed test system；
Step S302, radar simulator simulate the electromagnetic environment under preset test environment, determine that its signal input part inputs
Radar signal the guinea pig signal after current measuring distance is transmitted under the electromagnetic environment, and the guinea pig is believed
It number is exported from the signal output end of the radar simulator；
Step S303, the signal input part of guinea pig signal from the high-precision frequency spectrograph of the disturbed test system are defeated
Enter, the high-precision frequency spectrograph output is input to from the signal input part of the high-precision frequency spectrograph in the high-precision frequency spectrograph
Signal strength；
Step S304 limits the signal strength of high-precision frequency spectrograph output and the protection of preset radio astronomy service
Value is compared, and according to comparison result, is judged under preset test environment and current measuring distance, the tested millimeter wave
With the presence or absence of interference between radar and radio astronomy.
What is provided through the embodiment of the present invention is carried out using the disturbed test system between millimetre-wave radar and radio astronomy
The method of disturbed test, the radar signal sent by the practical tested millimetre-wave radar of electromagnetic horn acquisition, by acquisition
Radar signal is input to radar simulator, and electromagnetic environment of the radar information in preset test environment is simulated by radar simulator
The guinea pig signal after current measuring distance is transmitted, the high-precision frequency spectrograph for replacing radio astronomy is input to, then detects high-precision
Spend the signal strength of the signal of frequency spectrograph output, according to signal strength, judge tested millimetre-wave radar and radio astronomy it
Between with the presence or absence of interference.It ensure that the real reliability of millimetre-wave radar input parameter in test, avoid weather uncertainty
With the influence of unknown radio interference, the complexity of result acquisition and error-prone property are reduced, is avoided in actual test to penetrating
The adverse effect that electric astronomy interferes avoids a large amount of consumption of manpower and materials in practical field testing.
In an optional embodiment of the embodiment of the present invention, the situation of millimeter wave frequency band is not supported in radar simulator
Under, then it also needs to be mixed electromagnetic horn output radar signal, therefore, in step s 302, radar signal is input to
The signal input part of the radar simulator of the disturbed test system, including：Radar signal is input to the disturbed test system
First frequency mixer of system after first frequency mixer mixing, is input to the letter of the radar simulator of the disturbed test system
Number input terminal.
In an optional embodiment of the embodiment of the present invention, high-precision frequency spectrograph does not support millimeter wave frequency band, then also
It needs to be mixed the guinea pig signal that radar simulator exports, therefore, in step S303, the guinea pig signal
From the signal input part input of the high-precision frequency spectrograph of the disturbed test system, can include：The guinea pig signal is defeated
Enter the second frequency mixer to the disturbed test system, after second frequency mixer mixing, from the disturbed test system
The signal input part input of high-precision frequency spectrograph.
In an optional embodiment of the embodiment of the present invention, in order to allow user select current test environment and
Measuring distance, the method can also include：The environmental parameter of the radar simulator response external input and measuring distance ginseng
Number, determines the preset test environment and the current measuring distance.So that radar simulator can be according to the need of user
Simulate specific test environment and measuring distance.
In an optional embodiment of the embodiment of the present invention, in step s 304, the tester judges the quilt
With the presence or absence of interference between the millimetre-wave radar of test and radio astronomy, can include：If the intensity of the output signal is high
In the protection limit value, it is determined that under current measuring distance, deposited between the tested millimetre-wave radar and radio astronomy
It is interfering；If the intensity of the output signal is less than the protection limit value, it is determined that described tested under current measuring distance
There is no interference between the millimetre-wave radar of examination and radio astronomy；It is limited if the intensity of the output signal is equal to the protection
Value, it is determined that current guard space of the measuring distance between the tested millimetre-wave radar and radio astronomy.By this
Optional embodiment can test out the guard space between millimetre-wave radar and radio astronomy under preset test environment, from
And millimetre-wave radar and radio day can be avoided in a particular application, by setting the distance of millimetre-wave radar and radio astronomy
Interference between text.
In a particular application, during the test, can by same test environment, constantly changing distance parameter,
By measuring the disturbed condition of two kinds of business under different distance, to determine between tested millimetre-wave radar and radio astronomy
Guard space.
Fig. 4 is the method flow diagram for carrying out disturbed test using scheme provided in an embodiment of the present invention in a particular application,
As shown in figure 4, this method mainly includes the following steps that：
Step S401, the electromagnetic shielding chamber for selecting electromagnetic environment more clean is as test site；
Step S402 (will be used for the electromagnetic horn of millimetre-wave radar frequency band match by radio frequency line and radar simulator
Different measuring distances and different test electromagnetic environments are set) signal input part connects, by radar simulator signal output end with it is high
Precision frequency spectrograph connects；
In a particular application, if radar simulator does not support millimeter wave frequency band, it is also necessary in electromagnetic horn and radar mould
Intend increasing frequency mixer between device；If high-precision frequency spectrograph does not support millimeter wave frequency band, it is also necessary to radar simulator with it is high-precision
Increase frequency mixer between degree frequency spectrograph；
Step S403 is placed millimetre-wave radar and electromagnetic horn face and closely, and millimetre-wave radar is powered up, and is started
Millimetre-wave radar switchs, and makes its normal work；
Step S404, setting radar simulator are Plain and the environment of weather interference；
Step S405, it is 100m to set the distance parameter (between millimetre-wave radar and radio astronomy) in radar simulator；
Step S406 obtains the signal output intensity in high-precision frequency spectrograph；
The protection limit value of step S407, the signal output intensity that frequency spectrograph is shown and radio astronomy service is compared.
If above protection limit value, then show under the distance, there is interference between millimetre-wave radar and radio astronomy；If less than protecting
Limit value is protected, then is shown under the distance, there is no interference between millimetre-wave radar and radio astronomy；If equal to protection limit value,
Then show the distance for the guard space before millimetre-wave radar and radio astronomy；
Step S408, set the distance parameter in radar simulator for 1km, 3km, 5km, 10km, 20km, 30km respectively and
40km etc. repeats step S406 and step S407；
Step S409 sets radar simulator as forest and weather moistening, mountainous region and other environment such as dry respectively,
Repeat step S405 to step S408；
Step S410 judges the interference co-existence feelings under circumstances of millimetre-wave radar and radio astronomy according to test result
Condition.
Using the above method provided in an embodiment of the present invention, has the following advantages：
A) it is electromagnetically shielded indoor test：Electromagnetic shielding chamber ensure that test environment is clean, controllability, eliminate natural environment
With the influence of unknown electromagnetic wave；
B) it is tested using true radar：It ensure that the authenticity of output signal, parameter when having evaded theoretical calculation
Interference analysis mistake, has also evaded the feelings that the input signal brought using other signal sources is not conformed to the actual conditions caused by inaccurate
Condition；
C) frequency mixer is utilized：In the case of high-precision frequency spectrograph and radar simulator do not support millimeter wave frequency band, only need
Frequency mixer to be used to carry out frequency conversion, still interference therebetween can be tested；
D) using radar simulator：Simulate true electromagnetic environment：Different true uses is simulated using radar simulator
Environment (such as mountainous region, Plain, forest, groups of building, rainy day, fine day, sandstorm etc.), the various true rings of simulation as comprehensive as possible
Border reduces test job amount, difficulty of test, has used less manpower and materials, has reduced testing cost；Pass through radar simulation
Device sets different measuring distances (the distance between millimetre-wave radar and radio astronomy), is tested respectively, sentences convenient for analysis
Disturbed condition under disconnected different distance between two kinds of business；
E) radio observatory is replaced using high-precision frequency spectrograph：High-precision frequency spectrograph and radio observatory all only have signal
Receive capabilities and to signal sensitivity, therefore can use high-precision frequency spectrograph replace radio observatory；And frequency spectrograph in itself can
Enough observe directly interference signal intensity, it is easier to judge disturbed condition and annoyance level.
In the embodiment of the present invention, proposition replaces radio observatory with high-precision frequency spectrograph, sets difference with radar simulator
Electromagnetic environment and different distance, with true millimetre-wave radar measure interference device and method.Utilize electromagnetic shielding chamber screen
The electromagnetic interference outside laboratory has been covered, has avoided the influence that external radio business and other factors bring test process；
It is tested using really tested millimetre-wave radar, using high-precision frequency spectrograph as radio astronomy substitute, is used
Radar simulator simulates true environment, realizes the best fit to practical service environment；And it simulates possible in actual use
The varying environment that existing topography and geomorphology and weather are formed by combining；By constantly changing distance parameter, can very easily survey
The disturbed condition of two kinds of business under different distance is measured, and directly can easily get millimetre-wave radar to radio observatory
Signal strength directly judges annoyance level and guard space between two kinds of business.
In the specification provided in this place, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the present invention
Example can be put into practice without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this description.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of each inventive aspect,
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention：I.e. required guarantor
Shield the present invention claims the more features of feature than being expressly recited in each claim.More precisely, as following
Claims reflect as, inventive aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim is in itself
Separate embodiments all as the present invention.
Those skilled in the art, which are appreciated that, to carry out adaptively the module in the equipment in embodiment
Change and they are arranged in one or more equipment different from the embodiment.It can be the module or list in embodiment
Member or component be combined into a module or unit or component and can be divided into addition multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it may be used any
Combination is disclosed to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so to appoint
Where all processes or unit of method or equipment are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Profit requirement, abstract and attached drawing) disclosed in each feature can be by providing the alternative features of identical, equivalent or similar purpose come generation
It replaces.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments means in of the invention
Within the scope of and form different embodiments.For example, in detail in the claims, embodiment claimed it is one of arbitrary
It mode can use in any combination.
The all parts embodiment of the present invention can be with hardware realization or to be run on one or more processor
Software module realize or realized with combination thereof.It will be understood by those of skill in the art that it can use in practice
Microprocessor or digital signal processor (DSP) come realize the resource acquisition device of cloud disk according to embodiments of the present invention and
Resource is uploaded to some or all functions of some or all components in the device of cloud disk.The present invention is also implemented as
For perform some or all equipment of method as described herein or program of device (for example, computer program and
Computer program product).Such program for realizing the present invention can may be stored on the computer-readable medium or can have
The form of one or more signal.Such signal can be downloaded from internet website and be obtained or on carrier signal
It provides or is provided in the form of any other.
It should be noted that the present invention will be described rather than limits the invention, and ability for above-described embodiment
Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference mark between bracket should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" before element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of several different elements and being come by means of properly programmed computer real
It is existing.If in the unit claim for listing equipment for drying, several in these devices can be by same hardware branch
To embody.The use of word first, second, and third does not indicate that any sequence.These words can be explained and run after fame
Claim.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple showing for the present invention
Example property embodiment, still, without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or derive many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers other all these variations or modifications.
Claims (10)
1. the disturbed test system between a kind of millimetre-wave radar and radio astronomy, including：
Electromagnetic shielding chamber, the test site as disturbed test；
With the electromagnetic horn of the frequency band match of tested millimetre-wave radar, it is arranged on the electromagnetic shielding interior, the loudspeaker
Antenna is less than predetermined value with the millimetre-wave radar face and distance；
Radar simulator is arranged on the electromagnetic shielding interior, the signal input part of the radar simulator and the loudspeaker day
Line connects, for simulating electromagnetic environment and the current measuring distance under preset test environment；
High-precision frequency spectrograph is arranged on the electromagnetic shielding interior, signal input part and the thunder of the high-precision frequency spectrograph
Signal output end up to simulator connects, and for analog radio astronomy, exports the signal input part from the high-precision frequency spectrograph
The signal strength being input in the high-precision frequency spectrograph.
2. system according to claim 1, wherein, it further includes：
First frequency mixer is connected between the electromagnetic horn and the radar simulator.
3. system according to claim 1, wherein, it further includes：
Second frequency mixer is connected between the radar simulator and the high-precision frequency spectrograph.
4. system according to any one of claims 1 to 3, the radar simulator further includes：
Parameter input module for receiving externally input environmental parameter and measuring distance parameter, determines the current test wrapper
Border and current measuring distance.
5. system according to any one of claims 1 to 3, further includes：
Tester, for the protection of the signal strength of the output of the high-precision frequency spectrograph and preset radio astronomy service to be limited
Value is compared, and according to comparison result, is judged under preset test environment and current measuring distance, the tested millimeter wave
With the presence or absence of interference between radar and radio astronomy.
6. a kind of method that disturbed test is carried out using 5 any one of them disturbed test system described in any one of claim 1 to 5, including：
The electromagnetic horn of the disturbed test system receives the radar signal that tested millimetre-wave radar is sent out, by radar signal
It is input to the signal input part of the radar simulator of the disturbed test system；
Electromagnetic environment under the radar simulator simulation preset test environment determines the radar signal of its signal input part input
Transmit the guinea pig signal after current measuring distance under the electromagnetic environment, and by the guinea pig signal from the thunder
Signal output end up to simulator exports；
The guinea pig signal is inputted from the signal input part of the high-precision frequency spectrograph of the disturbed test system, described high-precision
Degree frequency spectrograph output is input to the signal strength in the high-precision frequency spectrograph from the signal input part of the high-precision frequency spectrograph；
The protection limit value of the signal strength and preset radio astronomy service of high-precision frequency spectrograph output is compared, root
According to comparison result, judge under preset test environment and current measuring distance, the tested millimetre-wave radar and radio day
With the presence or absence of interference between text.
7. according to the method described in claim 6, wherein, radar signal is input to the radar simulation of the disturbed test system
The signal input part of device, including：Radar signal is input to the first frequency mixer of the disturbed test system, it is mixed through described first
After the mixing of frequency device, it is input to the signal input part of the radar simulator of the disturbed test system.
8. according to the method described in claim 7, wherein, the guinea pig signal is from the high-precision of the disturbed test system
The signal input part input of frequency spectrograph, including：The guinea pig signal is input to the second mixing of the disturbed test system
Device, after second frequency mixer mixing, from the signal input part input of the high-precision frequency spectrograph of the disturbed test system.
9. according to claim 6 to 8 any one of them method, wherein, the method further includes：
The environmental parameter and measuring distance parameter of radar simulator response external input, determine the preset test environment and
The current measuring distance.
10. according to claim 6 to 8 any one of them method, wherein, judge the tested millimetre-wave radar and radio
It whether there is interference between astronomy, including：
If the intensity of the output signal is higher than the protection limit value, it is determined that described tested under current measuring distance
Millimetre-wave radar and radio astronomy between exist interference；
If the intensity of the output signal is less than the protection limit value, it is determined that described tested under current measuring distance
Millimetre-wave radar and radio astronomy between there is no interference；
If the intensity of the output signal is equal to the protection limit value, it is determined that current measuring distance is the tested milli
Guard space between metre wave radar and radio astronomy.
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