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In the case of mutual coupling the DOA (Direction of Arrival) and adaptive beam forming algorithms are analyzed. In practice the mutual coupling between the array elements can not be avoided. Thus the precision of DOA and beam forming performance are affected because of the change of array response vector aroused by the mutual coupling. The algorithms of DOA are deduced with the equivalent network...
In this paper, we propose one 3-D Localization Algorithm of Time-Changed Wireless Sensor Networks Based on Initial Topographical Information. The basic idea is first to apply the optimization method, anchors selection strategy and limited region traversal method to locate the unknown sensors by introducing initial topographical information, then relocate the moving sensors based on the communication...
The smart antenna adaptive algorithms achieve the best weight vector for beam forming by iterative means. Whether the algorithm is good depends on the convergence rate and steady state error. Beam forming is directly determined by the two factors. The performance of the traditional LMS algorithm is analyzed in this paper. Then a new variable step size algorithm is proposed and is applied to beam forming...
The level of the development of services has become an important symbol that measures the degree of socialization of production and the market economy development in a country or region; it plays a decisive role in promoting industrial upgrading. By analyzing the process of industrial upgrading and the quantitative measurement of the rate, as well as the contribution of the industrial structure of...
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