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For the problems of interaction ship between various disciplines and difficultiness of global optimization, the multidisciplinary design optimization theory was introduced to the design of torpedo guidance system. Combined with multidisciplinary design optimization theory, the disciplinary decomposition of torpedo guidance system, design contents of each discipline and the interdisciplinary coupling...
Geographic routing is widely used in wireless sensor networks due to its great efficiency, good scalability and computed routing close to the best possible. However, the problem that geographic routing uses GPS receivers or location algorithms to obtain nodes' geographic information leads to expensive cost and high overhead. Aiming at this problem, we present a Landmark-based Virtual Geographic Routing...
The previous study of pattern discovery in storage systems focus on sequential pattern (SP) mining in lower level traces, but they donpsilat scale well to the application level. For patterns in application level are mostly composed of Contiguous Item Sequential Pattern (CISP) which are much simpler than SP, so itpsilas inefficient for the previous studies to mine CISP with clumsy SP mining algorithms...
An image mosaics algorithm based on improved phase correlation is proposed in this paper. The improved phase correlation improves on the conventional phase correlation in three aspects. Firstly, the contours of images are extracted, and the phase correlation is applied to the contours of images instead of the whole original images. Secondly, when there are multiple peak values approximate to the maximum...
In this paper two section array and the arithmetic of DOA are studied on the eight elements array antennas and DOA arithmetic is designed on the FPGA. The directional characteristic of the line array and the elliptic array antenna is compared, proving that the line array and the circuit array can be consolidated in the elliptic array and deducting the uniform expression for array performance, forth...
Action grammar is a grammar with action symbols appearing in the right part of production rules, which can be used to implement semantic analyzer automatically. An action symbol represents the name of a semantic routine. Implementation of action grammar relies on specific parsing methods, such as LL(K), recursive-descent or LR, and so on. However, these parsing methods have their own restrictions...
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