CN106526380B - Electromagnetic Launching key element testing and analysis system - Google Patents
Electromagnetic Launching key element testing and analysis system Download PDFInfo
- Publication number
- CN106526380B CN106526380B CN201611027604.0A CN201611027604A CN106526380B CN 106526380 B CN106526380 B CN 106526380B CN 201611027604 A CN201611027604 A CN 201611027604A CN 106526380 B CN106526380 B CN 106526380B
- Authority
- CN
- China
- Prior art keywords
- analysis
- frequency
- data
- electromagnetic launching
- electromagnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
Abstract
The invention discloses a kind of Electromagnetic Launching key element testing and analysis system, is analyzed and is recognized for electromagnetic spectrum data, reason for Exceeding is diagnosed and positioned.The instrument has RE102/CE102 input function, can launch data to electromagnetic spectrum and be handled and analyzed.In use, the frequency spectrograph or Electromagnetic Launching receiver first by peripheral hardware are tested, the radiation-emitting data of equipment under test or system are collected；Then Preprocessing is carried out to data, the Electromagnetic Launching data analysis to exceeded frequency range obtains the trend component in the exceeded data in arrowband and broadband.Then, harmonic wave quantity and corresponding fundamental frequency value are extracted using auto-correlation variance analysis synthesis；Afterwards, sinusoidal differentiation and extraction are carried out to the exceeded arrowband frequency service life analytic approach of remaining in frequency spectrum；Generate global analysis report.The characteristic for launching key element in frequency spectrum data can be carried out more complete analysis and extraction by instrument of the present invention, be had great importance to system or equipment electromagnetic compatibility analysis and design.
Description
Technical field
The present invention relates to a kind of Electromagnetic Launching factor analysis system, belong to technical field of electromagnetic compatibility.
Background technology
As electric/electronic device quantity is more and more, it is useful or useless that these equipment would generally produce some at work
Electromagnetic Launching, these transmittings may cause potential electromagnetic interference to other equipment.These electromagnetic interferences can cause equipment
Performance degradation, in some instances it may even be possible to cause the breaking-up of equipment.Therefore is tested and analyzed to the Electromagnetic Launching key element of equipment the quarter that just seems
Do not allow to delay.Detected firstly the need of to electromagnetic emission spectra, then extract Electromagnetic Launching key element in frequency spectrum data and analyzed,
Then take corresponding electromagnetic Compatibility Design.The method for searching interference source at present is to take electromagnetic compatibility to transmitting equipment first
Detection experiment, judges whether equipment meets Electro Magnetic Compatibility according to Emission Limits specified in national military standard (GJB151A), once hair
Penetrate and exceed limit value, then judge to produce the reason for disturbing using empirical method or near field probes detection method.Empirical method is to detecting people
The professional skill of member requires higher, and near field probes detection method is a kind of very time-consuming method, can't generally trace electromagnetism
Root caused by interference.
Although electromagnetic emission spectra is complicated, Electromagnetic Launching element characteristic still has mark governed in data in frequency spectrum.
Wideband component is analyzed with narrow-band component to judging that emission characteristics and source are significant.The source of respective component is determined, is entered
And its transmitting feature can be analyzed and take the stronger measure of specific aim, have great importance
The content of the invention
The technology of the present invention solves problem：Overcome the deficiencies in the prior art, there is provided a kind of Electromagnetic Launching factor analysis system, base
Theoretical in electromagnetic compatibility key element, the interference source hidden to device interior recognizes, for the harmonic wave in frequency spectrum data and sine
Fundamental --- detection and analysis, if effectively fundamental frequency value is equal with the working frequency of some component, spectrum number can be found
According to root caused by middle harmonic wave, electromagnetic Compatibility Design and the rectification of equipment under test system can be instructed.In multiple harmonic waves simultaneously
In the presence of, reach in the case where being difficult to differentiate by the experience of engineer and differentiate harmonic wave interference and sinusoidal interference
Effect.
The technology of the present invention solution：
A kind of Electromagnetic Launching key element testing and analysis system, including：Test antenna and probe, equipment under test, receiver device
With Electromagnetic Launching factor analysis instrument；Receiver device gathers the frequency spectrum data of equipment under test by testing antenna and probe；Then
Data transfer carries out network analysis to electromagnetism factor analysis instrument to frequency spectrum data, and analysis includes, Preprocessing, frequency analysis,
Sinusoidal analysis；The progressively extraction of Electromagnetic Launching key element is completed by the frequency spectrum data for analyzing equipment, and generates analyze data.
The Electromagnetic Launching key element detection analysis instrument includes primary processor, data memory module, data transmission module, screen
Display module, power supply module；Primary processor by user input it is instruction morphing for corresponding control language carry out analysis and Control, according to
Preprocessing, frequency analysis, sinusoidal analysis analysis are carried out according to the selection of user, the Preprocessing is to receiver device institute
The frequency spectrum data of acquisition carries out overall cognition and has subsequent analysis certain to be directed to Sexual behavior mode；The frequency analysis is using week
Phase analysis method, cycle analysis is carried out to exceeded point all in narrow-band component, should if the exceeded point is periodic signal
Overtrick is set to harmonic wave frequency, and calculates the fundamental frequency of harmonic wave frequency, and respective identification and display are made at interface after examining validity；Institute
State sinusoidal analysis and use periodicity analysis method, cycle analysis is carried out to exceeded point all in narrow-band component, if described exceeded
Point is nonperiodic signal, then the overtrick is set into sinusoidal frequency, reads and show the frequency and amplitude of sinusoidal frequency, and at interface
Make respective identification and display；Data memory module, reading and saving are divided in whole csv file, while Electromagnetic Launching key element
Data file during analysis, picture file and analysis report are stored, and are provided for follow-up EMC analysis and rectification
Support；Data input module is connected with receiver device leading portion Electromagnetic Launching DATA REASONING instrument, realizes the real-time Transmission of data,
In real time Electromagnetic Launching factor analysis is carried out using the data of front end test device；Screen display module uses tangible screen
Carry out the display at interface；Power supply module is the stable output 12V voltages of whole system in the case of not connected power supply,
Ensure system worked well.
The present invention compared with prior art the advantages of be：
(1) frequency spectrum data of the invention for obtaining launching equipment by Electromagnetic Launching means of testing is used as data source, to wanting
The accuracy rate of harmonic wave key element and the progress selective analysis extraction of sinusoidal key element in plain theory, differentiation sine and harmonic wave interference type >=
80%, not more than 3 harmonic waves can be directed to harmonic fundamental frequency extraction is carried out in the presence of simultaneously, fundamental frequency extraction error≤10% is resulting
Element characteristic can reflect the Electromagnetic Launching characteristic of equipment, and propose that targetedly rectification is instructed.
(2) whole system application environment is stable.Read in test frequency spectrum data to be analyzed, wrapped in direct output spectrum data
The index of correlation of the Electromagnetic Launching key element contained.It coincide and can finds out with contained component respective physical mechanistic features in transmitting equipment
Interference source, search interference source more convenient.
(3) system integration can be applied to various test occasions, its analytic function and portable characteristics sent out in portable instrument
Wave ultimate attainment.Quantization signifying, explicit physical meaning, to electromagnetic interference portions of the spectrum are carried out to the Electromagnetic Launching key element in frequency spectrum data
Characteristic is recognized, and plays a part of instructing the analysis and design of installation electromagnetical compatibility.
The system can do more complete analysis to the emission characteristics of tested device and carry out carrying for Electromagnetic Launching key element
Taking so that user can have more complete understanding to the performance of equipment under test, while to system or equipment Electro Magnetic Compatibility point
Analysis and design have great importance.
Brief description of the drawings
Fig. 1 is the composition frame chart of present system；
Fig. 2 is the composition frame chart of the factor analysis instrument of the present invention；
Fig. 3 is the analysis procedure chart of the present invention；
Fig. 4 is the instrument interface analysis display figure of the present invention.
Embodiment
As shown in figure 1, Electromagnetic Launching key element testing and analysis system of the present invention, including test antenna and probe 2, equipment under test
1st, receiver device 3 and Electromagnetic Launching factor analysis instrument 4；Receiver device 3 is by testing antenna and the collection equipment under test of probe 2
1 frequency spectrum data；Then data transfer carries out network analysis to electromagnetism factor analysis instrument 4 to frequency spectrum data, and analysis includes, pre- place
Manage analysis, frequency analysis, sinusoidal analysis；Frequency spectrum data by analyzing equipment, which completes electromagnetism, will penetrate progressively carrying for key element
Take, and generate analyze data.
As shown in Fig. 2 the system architecture of Electromagnetic Launching factor analysis instrument includes primary processor, data memory module, data
Transport module, screen display module, power supply module.Control module collects user instruction, and will be instructed and transmitted by related algorithm
To primary processor；The data input primary processor that input module transmits receiver；Primary processor carries out base according to control instruction
In the analysis of the theoretical Electromagnetic Launching key element of key element；Preprocessing：The frequency spectrum data obtained to receiver device carries out whole
The cognition of body simultaneously has to subsequent analysis and certain is directed to Sexual behavior mode；Frequency analysis：Service life analysis method, in narrow-band component
All exceeded points carry out cycle analysis, and its harmonic component is obtained using multiresolution algorithm, then calculate harmonic component
Autocorrelation sequence, alternative fundamental frequency value is extracted from autocorrelation sequence and verifies its validity, if by being set to the point humorous
Wave frequency point, and the fundamental frequency of harmonic wave frequency is calculated, respective identification and display are made at the interface of instrument after examining its validity；It is sinusoidal
Analysis：Service life analysis method, cycle analysis is carried out to exceeded point all in narrow-band component, is if analyzing exceeded point
Nonperiodic signal, then the point is set to sinusoidal frequency, reads and show the frequency and amplitude of the frequency, and done at the interface of instrument
Go out respective identification and display.
In addition, illustratively wideband component and narrow-band component are a relative concepts, the narrow-band component mentioned by the present invention
Be it is relative with for wideband component, wideband component refers to that the frequency range included by component is larger；Mentioned arrowband point
Amount refers to act on the signal compared with small frequency ranges as harmonic wave and sinusoidal component.
As shown in figure 4, the instrument interface analysis display figure of the present invention：Region one is initial data viewing area, for showing
The initial data analyzed；Region two dimension Preprocessing area：Overall cognition is carried out and to rear to the frequency spectrum data analyzed
Continuous analysis, which has, certain is directed to Sexual behavior mode；Region three is frequency analysis area：For carrying out frequency analysis to analyze data, and extract
Its harmonic fundamental frequency value is simultaneously shown；Region four is sinusoidal analysis area, and the data result that previous step handles to obtain periodically divide
Analysis, if it is nonperiodic signal to analyze exceeded point, is set to sinusoidal frequency by the point, reads and show the frequency and width of the frequency
Degree, and respective identification and display are made at the interface of instrument.
As shown in figure 3, the detailed process of analysis method of the present invention is as follows：
Step 1：Data import：Using interfaces such as USB interface, network interfaces from frequency spectrograph or Electromagnetic Launching receiver
Electromagnetic Launching frequency-amplitude value is read, and is shown in the instrument interface region one.
Step 2：Preprocessing：Because the Electromagnetic Launching of most of equipment under test is in certain frequency wide-ultra
Mark, therefore, the frequency range is set to selective analysis frequency range during analysis.Meanwhile electromagnetism must be sent out using multiresolution algorithm
Radio frequency modal data carries out further data understanding and pretreatment.
Step 3：Frequency analysis：Find that there is the narrow-band interference signal of stable frequency in substantial amounts of Electromagnetic Interference Test
And its because non-linear caused harmonic wave occupies leading position in tested frequency spectrum.Frequency source in equipment under test is determined by analysis
Quantity and its fundamental frequency value, can be to determine the source of such harmonic component, service life analysis method, to institute in narrow-band component
The exceeded point having carries out cycle analysis, if the exceeded point is periodic signal, the point is set into harmonic wave frequency, and calculates harmonic wave frequency
The fundamental frequency of point, respective identification and display are made at the interface of instrument after examining its validity.If effective fundamental frequency value and some first device
The working frequency of part is equal, then can find root caused by harmonic wave in frequency spectrum data, and then can analyze it and launch feature, enters
And the stronger measure of specific aim is taken, instruct equipment under test electromagnetic Compatibility Design and rectification.
Step 4：Sinusoidal analysis：Service life analysis method, is carried out to exceeded point all in narrow-band component the cycle minute
Analysis, if the exceeded point is nonperiodic signal, is set to sinusoidal frequency by the point, reads and show the frequency and amplitude of the frequency,
And respective identification and display are made at the interface of instrument.By analysis can be to determine the source of such component, and then can divide
Analyse it and launch feature, and then take the stronger measure of specific aim, have great importance.
Step 5：By the basic parameter for all kinds of key elements extracted in step 1~step 4, according to template set in advance
Export analysis report.
The test data directly obtained by test equipment is relatively more mixed and disorderly and data volume is big, is generally all by the rich of engineer
Rich experience judges various interference classifications and carries out related measures to rectify and reform.Such method compares the experience dependent on engineer,
And supported without rigorous theoretical be used as.Analysis method proposed by the present invention can simplify numerous and diverse test data,
Key element theory analysis is carried out to ELECTROMAGNETIC REFLECTION data based on electromagnetism key element theory, by Preprocessing, frequency analysis and sine
Analysis, is extracted to the relevant parameter of two kinds of fundamentals, by analysis can be to determine the source of interference, and then can be divided
Analyse it and launch feature, and then take the stronger measure of specific aim, have great importance.
In a word, the present invention analyses in depth the characteristic of Electromagnetic Launching key element, electromagnetism hair using Electromagnetic Launching data as research object
Penetrate key element from form to start with, be divided into wideband component and narrow-band component, present invention is generally directed to narrow-band component to be analyzed, arrowband point
Amount is divided into harmonic excess and sine is exceeded.According to as above classifying, whole Electromagnetic Launching factor analysis instrument is according to Preprocessing, humorous
The step of wave analysis, sinusoidal analysis, carries out Systematic Analysis, and generating process analysis report and last final report.Formation has
The novel portable Electromagnetic Launching key element detection analysis instrument of complete analysis function, support is provided for EMC analysis and rectification.
Above example is provided just for the sake of the description purpose of the present invention, and is not intended to limit the scope of the present invention.This
The scope of invention is defined by the following claims.The various equivalent substitutions that do not depart from spirit and principles of the present invention and make and repair
Change, all should cover within the scope of the present invention.
Claims (1)
- A kind of 1. Electromagnetic Launching key element testing and analysis system, it is characterised in that including：Test antenna and probe, equipment under test, connect Receive machine equipment and Electromagnetic Launching factor analysis instrument；The Electromagnetic Launching key element detection analysis instrument includes primary processor, data storage Module, data input module, screen display module, power supply module；The receiver device gathers the frequency spectrum data of equipment under test by testing antenna and probe；Then data transfer is described in Electromagnetism factor analysis instrument carries out network analysis to frequency spectrum data, and analysis includes, Preprocessing, frequency analysis, sinusoidal analysis；It is logical Crossing analysis causes the frequency spectrum data of equipment to complete the progressively extraction of Electromagnetic Launching key element, and generates analyze data；User is inputted instruction morphing for corresponding control language progress analysis and Control, the choosing according to user by the primary processor Select and carry out Preprocessing, frequency analysis, sinusoidal analysis analysis；The Preprocessing uses multiresolution algorithm, and the frequency spectrum data obtained to receiver device carries out recognizing for entirety Know and have to subsequent analysis and certain be directed to Sexual behavior mode；The frequency analysis uses period Analysis, cycle analysis is carried out to exceeded point all in narrow-band component, if described Exceeded point is periodic signal, then the exceeded point is set into harmonic wave frequency, and calculates the fundamental frequency of harmonic wave frequency, examine validity after Make respective identification and display in interface；The sinusoidal analysis uses periodicity analysis method, cycle analysis is carried out to exceeded point all in narrow-band component, if institute It is nonperiodic signal to state exceeded point, then the exceeded point is set into sinusoidal frequency, reads and shows the frequency and amplitude of sinusoidal frequency, And respective identification and display are made at interface；The data memory module, reading and saving is in whole csv file, while the number during Electromagnetic Launching factor analysis According to file, picture file and analysis report are stored, and support is provided for follow-up EMC analysis and rectification；The data input module is connected with receiver device leading portion Electromagnetic Launching DATA REASONING instrument, realizes the real-time biography of data It is defeated, carry out Electromagnetic Launching factor analysis using the data of front end test device in real time；The screen display module carries out the display at interface using tangible screen；Power supply module is in not connected power supply In the case of, for the output 12V voltages that whole system is stable, ensure system worked well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027604.0A CN106526380B (en) | 2016-11-18 | 2016-11-18 | Electromagnetic Launching key element testing and analysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027604.0A CN106526380B (en) | 2016-11-18 | 2016-11-18 | Electromagnetic Launching key element testing and analysis system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106526380A CN106526380A (en) | 2017-03-22 |
| CN106526380B true CN106526380B (en) | 2018-03-16 |
Family
ID=58353161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611027604.0A Active CN106526380B (en) | 2016-11-18 | 2016-11-18 | Electromagnetic Launching key element testing and analysis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106526380B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305500A (en) * | 2020-09-25 | 2021-02-02 | 苏州浪潮智能科技有限公司 | Positioning method and device of radiation emission source and electronic equipment |
| CN116125172B (en) * | 2022-12-30 | 2023-08-11 | 北京长鹰恒容电磁科技有限公司 | Electromagnetic environment data acquisition and feature analysis method |
| CN116184088B (en) * | 2023-03-06 | 2024-04-12 | 北京航空航天大学 | Electromagnetic spectrum characteristic-based electromagnetic radiation emission system fault detection method |
| CN116150594B (en) * | 2023-04-18 | 2023-07-07 | 长鹰恒容电磁科技(成都)有限公司 | Method for identifying switch element characteristics in spectrum test data |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4918381A (en) * | 1989-04-06 | 1990-04-17 | Hewlett-Packard Company | Automated method for determining total harmonic distortion |
| CN101349729B (en) * | 2008-09-04 | 2010-07-14 | 北京航空航天大学 | Electromagnetic compatible transmitting test method |
| CN101975895B (en) * | 2010-09-07 | 2012-10-10 | 北京航空航天大学 | EMI (Electrmagnetic Interference) diagnosing and repairing method aiming at harmonic component quantitative computation iteration |
| CN102707143B (en) * | 2012-05-31 | 2014-11-26 | 北京航空航天大学 | Method for extracting harmonic components from electromagnetic spectrum by using gray multi-cycle model |
| CN102749539B (en) * | 2012-06-27 | 2014-06-18 | 北京航空航天大学 | Fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference |
| CN104142425B (en) * | 2014-07-13 | 2017-05-03 | 中国人民解放军后勤工程学院 | Phase matching method for sinusoidal signal frequency estimation |
-
2016
- 2016-11-18 CN CN201611027604.0A patent/CN106526380B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106526380A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106526380B (en) | Electromagnetic Launching key element testing and analysis system | |
| Moore et al. | Wavelet-bounded empirical mode decomposition for measured time series analysis | |
| CN102959354B (en) | Method and apparatus for for analyzing tree canopies with LiDAR data | |
| EP2770323A3 (en) | Ultrasonic test equipment using frequency analysis and evaluation method thereof | |
| CN108871647A (en) | Method for measuring the axial force of bolt | |
| CN102707143B (en) | Method for extracting harmonic components from electromagnetic spectrum by using gray multi-cycle model | |
| CN103308151A (en) | Heterodyne laser vibration measuring device and method | |
| CN106443183B (en) | A kind of method that frequency source quantity and fundamental frequency value are extracted from electromagnetic spectrum | |
| CN106017834A (en) | Non-contact modality testing method, device, and system | |
| CN101874744B (en) | Ultrasonic guided wave parameter measurement method used for long bone analysis | |
| Al-Sa’d et al. | Design of an optimal piece-wise spline Wigner-Ville distribution for TFD performance evaluation and comparison | |
| Nahvi et al. | Electrical impedance spectroscopy sensing for industrial processes | |
| CN105353330A (en) | On-line verifying system and algorithm for electronic current transformer based on virtual instrument technology | |
| CN103995147B (en) | A kind of Data Post Processing System being applicable to acoustic Doppler velocimetry and application | |
| CN106323447A (en) | Portable laser vibrometer based on mobile phone and method thereof | |
| Guo et al. | A novel solution for improved performance of Time-frequency concentration | |
| CN104714088A (en) | Frequency spectrograph and frequency spectrum measuring method | |
| CN108051425B (en) | Raman spectrum signal-to-noise ratio evaluation method | |
| US8575913B2 (en) | Pulse analyzer | |
| Tang et al. | An improved local maximum synchrosqueezing transform with adaptive window width for instantaneous frequency identification of time-varying structures | |
| D'Elia et al. | Software customization to provide digital oscilloscope with enhanced period-measurement features | |
| CN106770018A (en) | The method of near infrared spectrum quick test oil plant species | |
| KR101869064B1 (en) | Side-channel analyzer and method based on profile | |
| CN104820131A (en) | Method for accurately identifying ultralow frequency signal through dual calculation | |
| KR101381655B1 (en) | Method of prominent extracted features-based unsupervised mining of multi-applications of time series and electronic device supporting the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Su Donglin Inventor after: Wu Jiayi Inventor after: Jia Yunfeng Inventor after: Shang Xiaofan Inventor before: Su Donglin Inventor before: Wu Jiayi Inventor before: Shang Xiaofan |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |