2002 IEEE International Symposium on Electromagnetic Compatibility
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Analysis of power line communication networks using a new approach based on scattering parameters matrix
Tập 2 - Trang 1043-1047 vol.2
In this paper, the authors present a new approach based on scattering parameters matrix for the analysis of power line communication (PLC) signals in low voltage (LV) networks. The frequency spectrum associated with PLC signals extends from 1 MHz to 30 MHz. The low voltage network consists of multiconductor overhead lines and/or underground multiconductor cables. Dielectric and ohmic losses due to......
#Power line communications #Scattering parameters #Programmable control #Low voltage #Dielectric losses #Signal analysis #Frequency #Communication cables #Propagation losses #Computer interfaces
Estimating DC power bus noise
Tập 2 - Trang 1032-1036 vol.2
Simultaneous switching noise (SSN) resulting from IC devices can result in significant power bus noise, as well as radiation problems. An approach for estimating the power bus noise spectrum is presented in this paper. The power bus noise caused by digital circuits injecting high-frequency noise onto the DC buses feeding digital devices is calculated The transient current drawn by an IC device is ......
#Integrated circuit noise #Voltage #Clocks #Capacitance #Power dissipation #Frequency #Impedance #Power system harmonics #Switches #Transient analysis
On the measurement of shielding effectiveness in a mode stirred chamber
Tập 1 - Trang 383-388 vol.1
In the work presented here, the authors investigate how the isotropic shielding effectiveness measured in a mode stirred chamber (MSC) varies with probe type and position for a generic avionics bay. The measurements are made using six different probes in six positions. In the analysis, the measured received power is compared to the theoretical exponential distribution with good agreement for the e......
#Probes #Aerospace electronics #Position measurement #Testing #Antenna measurements #Electromagnetic measurements #Frequency measurement #Performance evaluation #Cables #Electromagnetic shielding
EMC standardisation in the IEC
Tập 1 - Trang 350-352 vol.1
The International Electrotechnical Commission, IEC is based with its headquarters in Geneva, Switzerland. The IEC is the only organisation in the world creating electrotechnical standards that have worldwide acceptance and support. IEC currently has some 65 member countries represented mostly by their standards committees and some 50 affiliate members. This paper looks at the EMC related work of t......
#Electromagnetic compatibility #IEC standards #Frequency #Protection #Buildings #Standards activities #Standards publication #Terminology #ISO #TV
Statistical analysis of measured data concerning electromagnetic environment inside an experimental avionics bay and implications for testing
Tập 2 - Trang 815-820 vol.2
In this paper, results from a statistical analysis of measured data are presented that once again confirms the assumption that the electromagnetic environment (EME) inside avionics bays is statistically isotropic and randomly polarized. The conclusion is that reverberation chambers present a more adequate electromagnetic test environment to avionics boxes than ordinary plane-wave testing. It is al......
#Statistical analysis #Electromagnetic measurements #Aerospace electronics #Testing #Electromagnetic wave polarization #Reverberation chamber #Resonance #Resonant frequency #Probes #Lighting
The role and activity of ANSI accredited standards committee C63 (EMC) and its relationship with international standards
Tập 1 - Trang 371-376 vol.1
In the USA, there are many organizations which develop EMC standards as they apply to their product sector. ANSI (American National Standards Institute) accredits many of these standards developers if they follow the processes and procedures required by ANSI. Accredited Standards Committee C63 is one of these ANSI accredited committees specializing in coordination of the EMC standardization activi......
#ANSI Accredited Standards Committees #Electromagnetic compatibility #Standardization #Standards development #Standards organizations #ANSI standards #Laboratories #Automotive engineering #FCC #Electromagnetic coupling
Accuracy improvement in permittivity measurement of construction materials by use of a model of the standing wave method in free space
Tập 2 - Trang 809-814 vol.2
A model of the measuring system has been developed to estimate accurately the complex permittivity of construction materials based on the standing wave method in free space. It is assumed in the model that the standing wave distribution is represented by the sum of the incident-, reflected- and scattered-wave components. In this paper, the measurement conditions of the model based measuring method......
#Permittivity measurement #Building materials #Distortion measurement #Scattering #Extraterrestrial measurements #Materials testing #Equivalent circuits #Circuit testing #Impedance measurement #Biological materials
A comparison of reduced-order techniques for complex interconnects modeling
Tập 1 - Trang 457-462 vol.1
This paper compares the performance of different reduced-order modeling techniques applied to the description of complex interconnect structures. In particular, we analyze two main classes of modeling tools, the block complex frequency hopping (BCFH) and the subspace-based state-space system identification (4SID) techniques. The strong and weak points of both methods are analyzed with particular a......
#Power system modeling #Computational modeling #Frequency estimation #Least squares approximation #System identification #Algorithm design and analysis #Robust control #Modems #Electromagnetic modeling #Driver circuits
AES-X13 and interference-free pro-audio systems
Tập 1 - Trang 434-439 vol.1
The design of large professional audio systems was never trivial, but the increases in the use of digital, switch-mode and wireless technologies have worsened their interference problems. This situation, increasing EMC regulation, and the poor EMC practice of single-point grounding commonly used in the pro-audio industry, encouraged the Audio Engineering Society (AES) to set up working group SC-05......
#Interference #Electromagnetic compatibility #Bonding #Radio frequency #Audio systems #Cable shielding #Communication switching #Cables #Grounding #System testing
EMC management methodology and lifecycle adopted by the West Rail project in Hong Kong
Tập 2 - Trang 791-794 vol.2
With the formal release of railway applicable European EMC standard, EN-50121:2000, EMC assurance for the railway industry has reached a matured stage. This paper describes the current EMC management methodology and lifecycle developed to manage the EMC aspects of the West Rail project, one of the largest railway projects in Hong Kong. The key activities and tools developed for each phase of the l......
#Electromagnetic compatibility #Project management #Rail transportation #Control systems #Power system management #Electromagnetic interference #Automatic control #Communication system control #Light rail systems #Power systems