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High-altitude electromagnetic pulse (HEMP), ultrawide-band pulse (UWB) and lightning electromagnetic pulse (LEMP) are often mathematically described by a double exponential function. In practice, the physical parameters of the pulse and the mathematical parameters of the function must often be transformed into each other. In this paper, a strict implicit translation equation group of parameters is...
The primary motivation of using Bayesian statistics in reliability analysis is the ability to incorporate prior knowledge with limited testing results in a formal procedure. This idea is particularly suitable for high reliable systems, which cannot afford enough samples to meet the confidence requirement in reliability demonstration test. The problem of appropriate choice of prior distribution is...
Blackouts of electric power often result in huge economic losses to power grid enterprises and society. To indicate the losses of accidents, this paper introduces the concept of the accident cost of distribution network failure, analyzes the various factors affecting it and figures out the calculation formula of it. On the basis of fuzzy theory, we use weight of power failure influence to describe...
Wireless sensor localization has become an essential requirement for realistic applications over wireless sensor networks (WSNs). Although some other systems have been proposed, these methods normally require heavy computational processes to overcome the presence of these errors. Because coarse accuracy is sufficient for most sensor network applications, a method for estimating unknown node positions...
We describe a method to segment rectangular objects that lie on a slightly textured background of an a-priori unknown colour. Our contribution consists of a fast and accurate background colour approximation method, a set of heuristics for accurate detection of rectangle sides, and procedures to generate imprecise hypotheses of rectangles, adjust hypotheses to fit the rectangles in the image, and verify...
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