EMC - ANALYZER Electromagnetic compatibility analysis & synthesis software for intrasystem-level solutions.

EMC - ANALYZEREMC - ANALYZER

Electromagnetic compatibility analysis & synthesis softwarefor intrasystem-level solutions

It is a comprehensive and powerful software tool for solving of It is a comprehensive and powerful software tool for solving of electromagnetic compatibility (EMC) and electromagnetic electromagnetic compatibility (EMC) and electromagnetic interference (EMI) problems in a cost-effective way:interference (EMI) problems in a cost-effective way:

• in various local board and ground systems (groupings,in various local board and ground systems (groupings, objectives, complexes, etc.), objectives, complexes, etc.),

• at various phases of the system life cycle - from initial at various phases of the system life cycle - from initial development to maintenance and modification of an existing development to maintenance and modification of an existing board or ground system board or ground system

• on intrasystem level taking into account various types of on-on intrasystem level taking into account various types of on- board spurious couplings, board spurious couplings,

EMC-AnalyzerEMC-Analyzer

Remember: the earlier you start to think about EMC/EMI,Remember: the earlier you start to think about EMC/EMI,the less expensive and more efficient solutions you will get !the less expensive and more efficient solutions you will get !

offers you a number of functions and possibilities:

EMC-Analyzer EMC-Analyzer

a) Survey of different ground or board system’s equipment for incompatibilities,

b) Substantiation of necessary changes (adjustments) in system during its development to achieve intrasystem EMC,

c) Automotive system specification generation for many kinds of equipment,

d) Detection and Identification of linear and nonlinear interference sources,

e) Comprehensive nonlinear behavior simulation in severe electromagnetic environment (up to 1 000 000 input signals),

f) Easy integration of measurement results into EMC analysis and design,

g) EMC education and training

a) Application of models and procedures used in the well-known “Intrasystem Electromagnetic Compatibility Analysis Program” (IEMCAP), USA

b) Pinpoint accuracy of spectra representation,c) Compatibility with MIL-STD 461 and 462 requirements, d) Special editors for a system block diagram, bundle structure and

board or ground system geometry,e) User-friendly graphic interface,f) PC-media under Windows NT/2000/XP/Vista,g) Developed Discrete Nonlinear EMC Analysis using Radio

Receiver Behavior Simulation Techniqueh) Trade-off EMC analysis


Main advantages:

a) Pinpoint accuracy of spectra representation (up to 1 000 000 frequency samples),

b) High accuracy of radio receiver nonlinearity representation using high order polynomial models (up to 15-25-th order) coupled with high-accuracy simulation/modeling of nonlinear interference (intermodulation, cross-modulation, signal blocking, etc.),

c) Development for expanded series of system formats (board system, box-body system, local ground system, local ground area),

d) РС application under Windows NT/2000/XP/Vista-------------------------------------------------------------


1. “Intrasystem Electromagnetic Compatibility Analysis Program” (IEMCAP), Parts 1,2, Final Technical Report, USA, 1977

2. A.Drozd, T.Blocher, A.Pesta, D.Weiner, P.Varshney, I.Demirkiran. Predicting EMI Rejection requirements using expert system based modeling & simulating techniques, Proc. XV Inter. Wroclaw Symp. on EMC, Poland, Wroclaw, 2000

Advantages in comparison with main analogues [1,2]:

Systems under Analysis:

Board System

Mobile and Fixed Radio CommunicationRadar & GuardRadio NavigationBroadcastingTVEtc.

Ground System

• Aircraft • Satellite• Missile• Helicopter• Box-Body• Ship • Etc.

• Local Ground

System• Local

Ground

Area

Radio CommunicationRadarRadio NavigationPower supplyControlComputerEtc.


1. Description of Board System geometry and structure (including subsystem definition)

2. On-board allocation of equipment (transmitters, receivers, transceivers, antennas, power supply and control equipment, bundles, etc.)

3. Definition of on-board equipment parameters and characteristics

4. Definition of on-board equipment connections and spurious couplings

Board System modeling include the following steps:


Board System

Subsystem


Board System structure:


Bundles placement

Apertures placement

Board System geometry (aircraft, satellite, missile, helicopter, etc.):

Antennas placement


Antennas placement

Box-Body System geometry (conducted box-body case):

Bundles placement

Apertures placement

Ship system geometry:


Bundles placement

Antennas placement

Apertures placement


Ground System modeling include the following steps:1. Creation and design of Ground System Spatial

model (building, tower or bounded area)

2. Allocation of equipment (transmitters, receivers, transceivers, antennas)

3. Definition of ground system equipment parameters and characteristics

4. Definition of ground system equipment connections and spurious couplings

5. EMC analysis, generating the system specification


Tower (Mast)

Local Ground System geometry types:

Building

Antennas placement


Propagation models:- EPM-73- ITU.R (Rec. 526,

530, 833 etc.)

Vegetation

Buildings

Antenna pattern

Space-Scattered Ground System (Ground Area) Geometry:

Ground Loops

Local Board Systems: available equipment:

Bundles

Receivers Transmitters

Antennas

Transceivers

Filters Control unit

Power unit Other devices


EMC-AnalyzerEMC-AnalyzerBundle Editors:

Box-bodyFuselage


Antenna to antenna Field to antenna Antenna to wire Wire to wire Field to wire Equipment case to equipment case Field to equipment case Ground loop

Local Board Systems: Spurious Coupling types :

Baseline EMC Analysis

Emitter Adjustments

Receptor Adjustments

Specification Generating

Nonlinear Radio Receiver Analysis


Main procedures:


Emitter spectrum

Receptor susceptibility

Required emitter spectrum (having been adjusted to fit receptor susceptibility to achieve EMC)

Emitter Adjustments:


Receptor susceptibility

Required receptor susceptibility (having been adjusted to fit emitter spectrum to achieve EMC)

Emitter spectrum

Receptor Adjustments:


Main idea: Simultaneous Emitter and Receptor Adjustments to achieve EMC (EMC Synthesis and Design)

Specification Generating:

Specification Generating Results are displayed in the report window (as the adjustment results)


Intermodulation Cross modulation Desensitization (signal blocking) Local oscillator noise and harmonics conversion AM-AM and AM-PM conversion

Analyzable nonlinear effects in radio receivers:

Nonlinear Radio Receiver Behavior Simulation in severe electromagnetic environment

Original discrete nonlinear EMC analysis technology High accuracy of radio receiver nonlinearity representation using high

order polynomial models (up to 25-th order) Reproduction of all nonlinear effects in a uniform work cycle with the use

of uniform nonlinearity mathematical model Fast solutions in electromagnetic environment of any complexity Nonlinear Interference Source identification

Main advantages:


Input circuit (IC) RF Amplifier (Radio frequency amplifier, RFA) Mixer (M) Local oscillator (LO) IF amplifier (Intermediate frequency amplifier, IFA) IF filter (Intermediate Frequency Filter, IFF) Filter (F) Decoupler (Dec) Attenuator (At) Noise Source (NS)

Nonlinear Radio Receiver Structure

The nonlinear receiver model can include the following elements:


Nonlinear Radio Receiver Structure Editor:

Nonlinear Receiver Behavior Simulation results:



IIM summarizes (integrates) the interference in the whole frequency band of analysis:

where P(fi) – emitter spectrum at the receptor input

(f) – susceptibility characteristic of the receptor

N – number of frequency samples

IIM >1 means that the emitter creates interference to the receptor

The Total IIM (TIIM) summarizes interference to the receptor from all the sources and paths:

TIIM >1 means that there is interference to the receptor (no EMC)

,)(1

0

N

iifIMIIM

EMC criterion: the Integrated Interference Margin (IIM)

)(

)()(

i

ii f

fPfIM

K

jjIIMTIIM

1


Level 1: Spurious Couplings modeling (including modeling of EMF spatial/surface distribution, calculation of antenna-to-antenna isolation, cable-to-cable electromagnetic coupling, etc.)

A lot of well-known tools:

REMCOM Solutions (XFDTD), ZELAND Solutions (IE3D Full-Wave EM Design System), SEMCAD Software, FEKO Solutions, WIPL-D Software, GEMS Solutions, ANSOFT Solutions (HFSS), etc.

But they are not the tools for full EMC Analysis and Design of on-board systems

a) taking into account all possible paths of interference – via antenna input, via signal and control ports, via power supply ports, via different types of spurious couplings,

b) taking into account system-level EMC criteria which sum interference risks from different interference paths,

c) taking into account results of spurious couplings and interference measurements and simulation using different specialized software

Level 2: Full Intrasystem EMC Analysis and Design of local on-board/ground-based systems taking into account a),b),c)

Only EMC-Analyzer !!!

Place on EMC Market


Since 1998 EMC-Analyzer has been delivered to more than 20 companies in 10 countries of four continents (Europe, Asia, America, Africa)

During these years various versions of EMC-Analyzer software have been used by a number of customers for system design, EMC analysis & simulation, frequency assignment, EMC education & training with reference to radio systems deployed at various sites (aircraft, helicopters, satellites, ships, box-bodies, building roofs, antenna towers, airports, etc.)

EMC-Analyzer developers contributed significant efforts to cater for high-grade testing of its new versions to achieve its high-quality functioning. Recently the EMC-Analyzer top quality has been recognized and acknowledged. Since 2000 there have been no claims against its quality.

Application History

The errors of the IEMCAP models

The “antenna–to–antenna” coupling

Examination of the models on the board of B-52 aircraft: 190 out of 230 cases (or 82,6%) were correctly predicted. 17,4% of the cases included errors.38 (16,5%) - the errors of the first type, 2 (0,9%) - the errors of the second type.

B-52 Analysis Matrix

NO EMI EMI

NO EMI

171

2

(Errors of the 2nd type)

EMI

38

(Errors of the 1st type) 19

TOTAL COMBINATIONS: 230

Predicted

Actual


The “antenna–to–antenna” coupling

The examination was carried out on the board of F-15.

Out of 51 cases, 42 were correctly predicted, and 9 cases contained incorrect predications.

Out of 42 positive predictions, 35 did not contain the interference, and 17 did.

Number of cases correctly predicted as interference or compatibility

2

4

6

10

8

Negative Predicted Margins (Compatibility)

Positive Predicted Margins (Interference)

Total numbers of cases

Number of cases

Value of Integrated EMI Margin (DB)

-100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 10 20 30 40 50 to to to to to to to to to to to to to to to to -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 10 20 30 40 50 60

Distribution of Predicted Antenna-To-Antenna Integrated Margins

All 9 incorrect predictions were the errors of the first type. There were no errors of the second type. It is an evidence of the fact that the models give the upper estimation of theinterference level.

The “field–to–wire” and “antenna–to–wire” couplings

IEMCAP predictions are accurate enough for low frequencies (f 10 MHz) (more accurate, than these of many other programs).

The error is less than 10 dB for these frequencies. However, the error can reach 50 dB (near the resonance peaks caused by the fuselage and other metallic parts) for the frequencies f > 10 MHz.

Number of cases correctly predicted as interference or compatibility

48

52

24

20

12

4

8

16


Positive Predicted Margins (Interference) Total numbers

of cases

Number of cases


Less -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 Than to to to to to to to to to to to -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 10

Distribution of Predicted Antenna-To-Wire Integrated Margins

32

36

40

44

The analysis for the F15 board : 116 out of 121 cases were correctly predicted. All 5 incorrect predictions were the errors of the first type.Errors of the second type were absent!


The “wire–to–wire” coupling

The accuracy of IEMCAP models (defined as the ratio of the exact value to the approximate value) is 10 dB for L<0.1, where L - wire length, - wavelength.

181 couplings were modeled. 152 correct predictions were made. All 29 negative predictions were the errors of the first type. The models give the upper estimation of the interference level, as showed in figure.

Number of cases correctly Predicted as interference or compatibility

12

20

24

28

32

8

4

16


Positive Predicted Margins (Interference)

Total numbers of cases

Number of cases


Less -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 10 20 30 Than to to to to to to to to to to to to to to -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 10 20 30 40

Distribution of Predicted Wire-To-Wire Integrated Margins

The increase in the quantity of errors for L>0.1 is caused by several reasons. First, the standing waves appear at thesufficiently high frequencies (they are caused by reflections from the heterogeneities), and they are not taken into account. Second, the interaction has resonance character at sufficiently high frequencies and capacitive and inductive couplings cannot be separated.



EMC-AnalyzerEMC-Analyzer platform is a result of scientific, technical and industrial cooperation of the following organizations:

EMC-Analyzer, EMC-Analyzer, version 1.45.01version 1.45.01© 2009 by Belarusian State University of Informatics &

Radioelectronics and EMC Technologies LLPAll rights reserved

Belarusian State University of Informatics & Radioelectronics (BSUIR)

EMC Technologies LLP Orientsoft Joint-Stock Company

BSUIR, EMC R&D Laboratory

Technologies, software products and specialized expert systems for analysis and synthesis of EMC in local board and ground radio systems (groupings of radio equipment)

Technologies and software products for analysis and synthesis of intrasystem and intersystem EMC, spectrum management in space-scattered (territorial, regional, etc.) groupings of radio equipment with the use of digital area maps, GIS technologies and frequency allocation databases

Approaches, technologies and software products for discrete nonlinear modeling & behavior simulation of radio systems, devices and elements (radio networks, systems, receivers, transmitters, amplifiers, mixers, etc.)

Methods, technologies and software products for optimal frequency planning of radio networks (mobile and fixed radio communication, digital TV, etc.) with arbitrary spatial topology

Methods, technologies and software products for measurement and control of EMC characteristics of radio elements, devices and systems

Statistical theory of EMC in space-scattered radio systems and networks System ecology of cellular radio networks

Main research and development (R&D) trends and activities:

EMC Technologies LLP

Development and promotion to the world market of technologies and software in the field of radio system design and electromagnetic compatibility analysis & design, including

Main research and promotion activities:

development and modification of codes and procedures in the “EMC- Analyzer” software for the intrasystem EMC analysis and design, further improvement and promotion of this software to the world market

development and promotion to the world market of software of the “Microwave Radio Network Planning Tools” (MRNPT) series - “HOP- Designer”, “Network Frequency Planning”, “Network Frequency Allocation”, etc. for radio system EMC design and analysis using GIS-technologies

development of software for nonlinear EMC analysis and radio receiver behavior simulation in complicated electromagnetic environment (EME) based on instantaneous quadrature technique

EMC-Analyzer,EMC-Analyzer, related papers (1): Baldwin T.E.Jr. and Capraro G.T. Intrasystem Electromagnetic Compatibility

Analysis Program (IEMCAP), IEEE Trans. on EMC, v.22, pp.224-228, Nov. 1980

V.I. Mordachev, Express-analysis of electromagnetic compatibility of radioelectronic equipment with the use of the discrete models of interference and Fast Fourier Transform, Proc. of IX-th Intern. Wroclaw Symp. On EMC, Poland, Wroclaw, 1988, Part 2, pp. 565-570

S. L. Loyka and V. I. Mordachev, Identification of nonlinear interference sources with the use of the discrete technique, Proc. of IEEE Intern. Symp. on EMC, Denver, Colorado, 1998, pp. 882–887

S.L. Loyka and J.R. Mosig, New behavioral-level simulation technique for RF/microwave applications. Part I: Basic concepts, Int. J. RF Microwave Computer-Aided Eng., 10(4) (2000), pp.221–237

V.I.Mordachev Automated Double-Frequency Testing Technique for Mapping Receive Interference Responses, IEEE Trans. on EMC,Vol.42, No.2, May 2000

V.Mordachev, P.Litvinko. Expert System for EMC Analysis Taking Into Account Nonlinear Interference, Proc. of 16th Intern. Wroclaw Symp. on EMC, Poland, Wroclaw, June 25-28, 2002, pp.265-270

V.Mordachev, P.Litvinko. Nonlinear sensor method for EMC/EMI analysis in severe electromagnetic environment using EMC-Analyzer expert system, Proc. of 17th Intern. Wroclaw Symp. on EMC, Poland, Wroclaw, June 29-July 1, 2004

EMC-Analyzer,EMC-Analyzer, related papers (2):

V.I. Mordachev, Discrete nonlinear EMC analysis of radiosystems, Doklady BSUIR, No.2, 2004 (in Russian).

V.Mordachev, Discrete Nonlinear EMC Analysis: principles, capabilities and application restrictions, Proceedings VI International Symposium on Electromagnetic Compatibility and Electromagnetic Ecology, Saint-Petersburg, Russia, June 21 – 24, 2005, pp. 145-148.

V.Mordachev, E.Sinkevich, EMC Analysis of co-site RF/Microwave systems: simulation of signal demodulation, Proceedings of International Symposium on Electromagnetic Compatibility “EMC Europe 2006”, Spain, Barcelona, Sept. 4-8, 2006, p.624-629.

V.I.Mordachev, P.A.Litvinko, Advanced options of expert system “EMC-Analyzer”, Proceedings of International Symposium on Electromagnetic Compatibility “EMC Europe 2006”, Spain, Barcelona, Sept. 4-8, 2006, p.635-640.

E.V.Sinkevich, Validation of the Hammerstein-type behavioral model for the diode envelope demodulator, Proceedings of the VII-th International symposium on electromagnetic compatibility and electromagnetic ecology, Saint-Petersburg, June 26-29, 2007, pp.162-165.

EMC-Analyzer,EMC-Analyzer, related papers (3):

E.V.Sinkevich, Discrete nonlinear simulation of radio receivers for electromagnetic compatibility analysis and design: estimation of the signal-to-interference ratio, Proc. VII-th Int. Symp. on EMC and electromagnetic ecology, Saint-Petersburg, June 26-29, 2007, pp.166-169.

V.I.Mordachev, E.V.Sinkevich, Discrete technology of electromagnetic compatibility analysis at the system level: features and applications overview, Proceedings of the International conference on metrology and measurement “ICMM 2007”, Vol.1, Beijing, September 5-7, 2007, pp.57-63.

V.I.Mordachev, E.V.Sinkevich, “EMC-Analyzer” expert system: improvement of IEMCAP models, Proc. of the 19th International Wroclaw Symposium and Exhibition on EMC, Poland, Wroclaw, June 11-13, 2008, pp.423-428.

E.V.Sinkevich, Estimation of signal-to-interference ratio for discrete nonlinear simulation of radio receivers operating in severe electromagnetic environment, Doklady BSUIR, 2008, No.4, pp.35-40 (in Russian).

E.V.Sinkevich, AM-PM conversion simulation technique for discrete nonlinear analysis of electromagnetic compatibility, Proc. VIII-th Int. Symp. on EMC and electromagnetic ecology, Saint-Petersburg, June 16-19, 2009, pp.127-130.

EMC - ANALYZER Electromagnetic compatibility analysis & synthesis software for intrasystem-level solutions.

Documents

emcanalyzer slide

board system mobile

system specification

expert system

ship system geometry

intrasystem emc

system life cycle

system block diagram