A new edge detection technique based on anisotropic diffusion is implemented using mean field theory. This optimization approach to edge detection provides localized, thinned, and linked edges that are useful for imag...
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This paper studies all-digital discrete-time vector current control loops containing a voltage fed inverter in series with a permanent-magnet synchronous motor. Normal operation of the typical pulse width modulating v...
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The programmability (as a stored program) of the CNN Universal Machine is discussed first. It is shown why and in which sense this machine is universal. A new type of algorithm, the analogic one, is introduced. The ap...
Various types of CNNs are summarized and the taxonomy of CNN is given according to the different types of grids, processors, interactions, and modes of operation. Next, the CNN Universal Machine is introduced. The arc...
Presents two different methodologies for built-in self-diagnostic of boards and systems by space-time compression of test responses. The first method, soft decision, uses nonbinary multiple error-correcting codes to o...
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Presents two different methodologies for built-in self-diagnostic of boards and systems by space-time compression of test responses. The first method, soft decision, uses nonbinary multiple error-correcting codes to obtain space-time signatures. These obtained signatures and the corresponding precomputed references are compared and magnitudes of distortions in signatures are analyzed to identify faulty components. The second method, hard decision, makes use of the information indicating whether the corresponding signatures are distorted or not. Both approaches show considerable savings in hardware overheads when compared with a straightforward approach where a separate signature is required for every component. A transition from the soft to hard decision approach results in an increase in the number of signatures required for diagnostic but at the same time it results in a decrease in the complexity of a fault locating algorithm. Results pertaining to VLSI implementations are presented where the hardware overhead is estimated in terms of two-input equivalent gates.< >
A framework, based on nonbinary multiple error correcting codes, for built-in self-diagnostics is presented. Novel space-time compressors are proposed for test response compression and fault diagnosis. Fault-detecting...
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A framework, based on nonbinary multiple error correcting codes, for built-in self-diagnostics is presented. Novel space-time compressors are proposed for test response compression and fault diagnosis. Fault-detecting and locating capabilities for space-time compressors are analyzed in the case when nonbinary Reed-Solomon codes are used. Fault-masking and diagnosis probabilities for the chip-independent error model are estimated. For this error-model, the fault-masking probabilities are analyzed using the weight distributions of Reed-Solomon codes.< >
Low-field current following Fowler-Nordheim stress of thin gate oxides is studied. The conduction mechanism is attributed to trap-assisted tunneling of electrons. For oxides thicker than 100 AA, this stress-induced cu...
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A method for automating the search for codes that have particular structural features is described. A pattern language is used to specify the pattern of desired code. The benefits of using a pattern language include a...
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A method for automating the search for codes that have particular structural features is described. A pattern language is used to specify the pattern of desired code. The benefits of using a pattern language include a higher level of abstraction in specifying patterns and the power to specify complex patterns which are impossible to express in grep type languages. A system that accepts these patterns and locates code fragments in C source files is described.< >
We have used 2.0-μsec microwave pulses at a frequency of 2.856 GHz to rapidly heat thin amorphous yttrium-barium-copper-oxide (YBCO) films deposited onto silicon substrates. The samples were irradiated inside a WR-28...
We have used 2.0-μsec microwave pulses at a frequency of 2.856 GHz to rapidly heat thin amorphous yttrium-barium-copper-oxide (YBCO) films deposited onto silicon substrates. The samples were irradiated inside a WR-284 waveguide by single-pass TE10 pulses in a traveling wave geometry. X-ray diffractometry studies show that an amorphous-to-crystalline phase transition occurs for incident pulse powers exceeding about 6 MW, in which case the amorphous YBCO layer is converted to Y2BaCuO5. Microscopy of the irradiated film reveals that the phase transition is brought about by melting of the YBCO precursor film and crystallization of the molten layer upon solidification. Time-resolved in situ experiments of the microwave reflectivity (R) and transmissivity (T) show that there is an abrupt change in R for microwave pulse powers exceeding the melt threshold, so that measurements of R and T can be used to monitor the onset of surface melting.
Polarization diversity can be used in the adaptive polarimetric radar system to improve detection performance for slowly or tangentially moving targets, which typically go undetected when only Doppler processing is us...
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Polarization diversity can be used in the adaptive polarimetric radar system to improve detection performance for slowly or tangentially moving targets, which typically go undetected when only Doppler processing is used. Previous work in this area has shown that with the adaptive single band polarization canceler (ASBPC) the target signal cancellation is a serious problem. The authors propose an adaptive multiband polarization canceler (AMBPC) as a solution. The key idea is based on the variability of clutter polarization, relative to that of the target, as a function of radar frequency. The AMBPC-based detector is shown to significantly outperform the corresponding ASBPC under the toughest system constraint. The total gain of the AMBPC over the ASBPC is attributed to the combination of the signal cancellation reduction, better adaptation, and a fluctuation reduction of the degree of target polarization, in addition to the well-known target amplitude fluctuation reduction.< >
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