Applied Informatics and Communication: International by Wei Jian-Xiang, Sun Yue-Hong, Tao Zhao-Ling (auth.), Jun

By Wei Jian-Xiang, Sun Yue-Hong, Tao Zhao-Ling (auth.), Jun Zhang (eds.)

The 5 quantity set CCIS 224-228 constitutes the refereed complaints of the foreign convention on utilized Informatics and verbal exchange, ICAIC 2011, held in Xi'an, China in August 2011.

The 446 revised papers awarded have been rigorously reviewed and chosen from quite a few submissions. The papers conceal a wide diversity of issues in computing device technological know-how and interdisciplinary functions together with keep watch over, and software program structures, neural computing, instant networks, details platforms, and photograph processing.

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Additional info for Applied Informatics and Communication: International Conference, ICAIC 2011, Xi’an, China, August 20-21, 2011, Proceedings, Part V

Example text

R is the vector that connecting from the center of the unit disk to each pixels (x, y) of the square imgae. θ is the angle between r vector and the principle x-axis. ρ, which is the length of r vector, can be computed as ρ = x2 + y2 (8) y x (9) The θ can be computed as θ = tan −1 ( ) The reduction in operations for Zernike moments embodied in making used of the symmetry or anti-symmetry. The symmetrical or anti-symmetrical points of (x, y) are in Figure 2. The propertys of the symmetric or anti-symmetric points of the point (x, y) are in Table 1.

X is a chu sequence with the length N c used in this paper have the following form: X ( n) = exp( jπγn 2 / N c ) where (2) N c = N / 4 and γ = N c − 1 , 0 ≤ n < N c . Let sequence M denotes the reversed and conjugated version of sequence X, which can be expressed as: M (n) = X ( N c − n − 1) 0 ≤ n < Nc (3) In order to improve the accuracy of timing synchronization algorithm in multipath channels, we introduce a PN sequence to scramble the phase of M. It is assumed that P is a pseudo-random sequence with the length N c , the element of P is randomly selected from the collection: 1 / 2{1 + j ,1 − j ,−1 + j ,−1 − j} So sequence Y has the following form: 0 ≤ n < Nc Y ( n) = M ( n) ∗ P ( n) (4) Z is a geometric sequence which is adopted here to execute integer frequency offset estimation.

The control instrument is marked by WNO and serial number of component, the control cable is marked by serial number of cable [9]. • The operation platform is marked by WNO, drawing number and production video (WNO-PNO-Serial Number of Section-Serial Number of Single Equipment-Drawing Number-Production Video Number) [9]. The above marking schemes are typed into the computer before dismantling the equipment to form the first draft, and the operators can guide marking works by print files. The operators can also add or delete the marking schemes depending on the local conditions, and the finally marking schemes are formed.

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