The 22nd Convention on Electrical and Electronics Engineers in Israel, 2002.

1-1 Dec. 2002

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  • 22nd Convention of Electrical and Electronics Engineers in Israel. Proceedings (Cat. No.02EX637)

    Publication Year: 2002
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  • An upper bound of the weight-balanced testing procedure with multiple testers

    Publication Year: 2002
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (36 KB) | HTML iconHTML

    Summary form only given, as follows. We investigate the performance of the weight-balanced testing algorithm (WBT) with multiple testers. The WBT has been proposed for coding, memory storage, search and testing applications. It aims to minimize the expected number of tests and often provides reasonable results if used with a single tester. However, the performance of the multiple-tester WBT, and p... View full abstract»

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  • Separation properties of codes and identification

    Publication Year: 2002
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    Summary form only given, as follows. We survey various combinatorial problems and results about the separation properties of codes. We study how they can be put to use to identify, trace or deter the collusion of users in, e.g., broadcast encryption or copyright protection. View full abstract»

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  • Feasibility tests of SiC thin films by sputtering

    Publication Year: 2002
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    Summary form only given. Silicon carbide (SiC) is one of the most important materials in recent years. SiC single crystalline substrates are used for high-temperature and fast-acting electron devices. The hydrogenated amorphous silicon-carbide alloy thin films have been of technical interest as an optoelectronic material. These films have important applications also as p-type layers in amorphous s... View full abstract»

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  • Analysis of band-gap characteristics of two-dimensional periodic structures using the source-model technique

    Publication Year: 2002
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    Summary form only given. Introduces a solution based on the source-model technique for periodic structures for the problem of electromagnetic scattering by a two-dimensional PBC (photonic bandgap crystal) slab illuminated by a TM (transverse magnetic) plane wave. The PBC slab is composed of a finite number of identical layers each comprising a linear periodic array of dielectric cylinders. The pro... View full abstract»

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  • Standardization in ITU-T

    Publication Year: 2002
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    Summary form only given. The paper describes activities and experience of ECI in telecommunications standardization, especially in the ITU-T. We start by describing the market and motivation, other bodies active in the field, and the difference between them and the ITU-T. The method of operation of the ITU-T is described, followed by examples of the standardization activities involved within the d... View full abstract»

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  • Regulations versus standards in approving telecom equipment

    Publication Year: 2002, Page(s):121 - 122
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    Summary form only given. The aim of spectrum management is to reduce interference, without preventing the penetration of new technologies. The article looks at type approving and station licensing; and ITU-R, CEPT, NTIA and FCC regulations. Organisations like IEEE and ETSI prepare standards by industry for industry. The article looks at European interaction; CEPT/ETSI is a good model. Most countri... View full abstract»

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  • Segmentation and analysis of hyperspectral data

    Publication Year: 2002
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (71 KB) | HTML iconHTML

    Summary form only given. We review a previously presented algorithm that segments hyperspectral images on the basis of the two- or three-dimensional histograms of their principal components. Some modifications to improve our previous approach are detailed. After exploring the application of morphology directly to the segmented (digital) images, we focus on the processing of our segmented images in... View full abstract»

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  • Human epileptic seizure prediction with fuzzy clustering of wavelet and polyspectra-based features of the EEG

    Publication Year: 2002
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    Summary form only given. Epileptic seizures affect about 1% of the human population. Many patients (20%) are resistant to preventive drug treatment. The ability to anticipate the onset of seizures in such cases would permit clinical intervention. In previous work, the unsupervised optimal fuzzy clustering (UOFC) algorithm was applied to wavelet coefficient features in predicting hyperbaric-oxygen-... View full abstract»

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  • Analytical method for harmonic calculation of electronic devices' currents

    Publication Year: 2002
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    Summary form only given as follows. Electronic devices (ED) are the main sources of harmonic pollution in low voltage power systems. Harmonics measurements require special equipment, which is quite expensive and not always available. That is why it is important to develop an analytical method, which allows to calculate fast, easily and accurately the current harmonics of waveforms, obtained experi... View full abstract»

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  • On the accumulating effect of simple peak-detection rectifiers in the context of power quality

    Publication Year: 2002
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    Summary form only given, as follows. Capacitive rectifiers are among the worst loads in terms of harmonic pollution, with a typical total harmonic distortion (THD) of 160-170%. Due to their simplicity and low cost, these rectifiers are widely used in low power electronic appliances such as personal computers, TVs, office appliances, audio consumer appliances and more. Therefore they constitute a c... View full abstract»

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  • Wireless communication system OCDMA cross-talk analysis

    Publication Year: 2002
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (47 KB) | HTML iconHTML

    Summary form only given. In the communication world, optical wireless communication (OWC) is one of the major areas that remain to be comprehensively researched. OWC uses light beams propagating through the atmosphere to carry information. The OWC terminal includes an optical transmitter and a receiver, which are placed on high-rise buildings at a separation distance of several hundred meters. The... View full abstract»

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  • Optical wireless communication system performance improvement by a decision feedback equalizer

    Publication Year: 2002
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (44 KB) | HTML iconHTML

    Summary form only given. We investigate the use of an adaptive decision feedback equalizer (DFE) in outdoor optical wireless communication systems using baseband non-return-to-zero (NRZ) on-off keying (OOK) modulation. We note that the intersymbol interference (ISI) induced by multi-path propagation of photons in optically thick clouds and fog impairs detection efficiency. Here, based upon theoret... View full abstract»

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  • Magnetic insulation of space-charge dominated beam in a miniature cross-field device

    Publication Year: 2002
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    Summary form only given. We report here experimental results from a miniature radiation source based on a ferroelectric cathode. One of the main characteristics of ferroelectric emission at low anode voltages is that the measured current exceeds the Child-Langmuir current by several orders of magnitude. On the other hand, cross field devices, like the magnetron, have inherently high conversion eff... View full abstract»

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  • Analysis of belief-propagation decoding of LDPC codes over the biAWGN channel using improved Gaussian approximation based on the mutual information measure

    Publication Year: 2002, Page(s):262 - 264
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (79 KB) | HTML iconHTML

    Summary form only given. The capacity of the message-passing decoder for LDPC codes can be computed by the density evolution algorithm by iteratively computing message densities. The infinite-dimensional problem of iteratively calculating the message densities in the case of the binary input AWGN channel and the belief propagation decoder can be simplified to a one-dimensional problem by using a G... View full abstract»

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  • Decoding algorithms for LDPC codes transmitted over channels with ISI

    Publication Year: 2002
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (85 KB) | HTML iconHTML

    Summary form only given. LDPC (low density parity check) codes (Gallager (1963)) are linear parity check codes with a sparse parity check matrix. In our work Gallager's original decoding algorithm is extended to alleviate the problem of channel with finite memory. Two decoding algorithms are derived. The basic algorithm tracks the original derivation of Gallager with the necessary adaptations. Thi... View full abstract»

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  • A switched mode rectifier for improved interface with alternators

    Publication Year: 2002
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (38 KB) | HTML iconHTML

    Summary form only given, as follows. Electromechanical generators that feed a DC bus through a diode bridge rectifier are commonly applied. Among other examples, synchronous generators (alternators) are used in vehicles to generate the electrical power. The resulting phase currents are nonsinusoidal, which together with the relatively high output impedance of these machines cause significant phase... View full abstract»

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  • DFT as test optimization strategy

    Publication Year: 2002, Page(s):282 - 283
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    Summary form only given. This paper describes board and system level Design-for-Testability (DFT) methodology as test optimization strategy. Test engineers take great pain to incorporate DFT principles and rules into their circuitry, but digital paradigm cannot realize the entire spectrum of this methodology. A modem mixed-signal board contains swarms of purely digital ICs, purely analog ICs, as w... View full abstract»

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  • Sea scene statistics in the infra red spectral region

    Publication Year: 2002
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    Summary form only given. Modeling the spatial statistics of sea scenes is important in detection of sea related targets. This paper derives the spatial distribution of a sea scene when observed from an IR sensor. The derived model takes into account the tilting angle of the sensor that determines the angle at which the scene is observed. In the model a general spatial statistics of the scene, as i... View full abstract»

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  • Implementing automotive protocols for communication over noisy battery power lines

    Publication Year: 2002
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (56 KB) | HTML iconHTML

    Summary form only given. Recently, electronics has penetrated rapidly into cars. Already electronics is 20% of the vehicle's content. The wiring harness is' the second heaviest component after the engine, providing power, control and communication to variety of modules. The modern car has several in-car networks, in which multiple nodes are connected by relatively few wires. The dream of a single ... View full abstract»

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  • Acquisition of an UWB communications system in the presence of a large UWB interference user

    Publication Year: 2002
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    Summary form only given. Ultra wide band (UWB) is a new time hopping (TH) multiple access communication technique. This technique utilizes pseudo noise (PN) pulse position dithering to achieve multiple access capabilities. In the initial acquisition stage the receiver is confronting a low SNR and experiences multiple access interference (MAI) from other UWB users. Combining the characteristic of t... View full abstract»

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  • Shielding against magnetic fields radiated from high power transformers

    Publication Year: 2002
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    Summary form only given. Large buildings for commercial, educational and residential purposes require a local power plant for air conditioning, elevators and other uses. These power plants are high power transformers with a three phase high voltage input and a low voltage/high current three phase output. These high current outputs generate an intense local magnetic field, above the accepted ICNIRP... View full abstract»

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  • Grounding, electrical referencing and bonding in electronic systems

    Publication Year: 2002
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    Summary form only given. This paper deals with one of the most problematic issues in the EMC engineering field - grounding for EMI control and for other essential objects, such as: safety grounding, lightning protection, ESD control, and reference point for signals. The paper points out the difference between electrical bonding and electrical grounding; theory of grounding versus experience; commo... View full abstract»

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  • EMC at electro-optical system

    Publication Year: 2002
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (45 KB)

    Summary form only given. Electro-optical (EO) systems are widely used in military, paramilitary, and commercial environments. This paper is focused on EMC design of military and paramilitary systems. These EO systems include day and night vision equipment, Laser range finders and designators, photography subsystems etc. It is not uncommon to find in the same EO payload the following sub-systems; C... View full abstract»

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  • Monitoring the risk for pressure sore onset

    Publication Year: 2002
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    Summary form only given. Pressure sores, caused by extensive and prolonged loading of tissues, are considered one of the most severe complications in geriatric and paralyzed patients. Two major biomechanical factors are involved in the injury process: (i) prolonged pressure on skin overlying bony prominences and (ii) the skin moisture, constituted by the surface temperature. The risk for a pressur... View full abstract»

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