大规模网络入侵中未损坏节点定位分析  

Positioning Analysis of Undamaged Node in Large Scale Network Intrusion

作　　者：吴悦[1] 翁小兰[2] 

机构地区：[1]淮阴工学院现代教育技术中心,江苏淮安223003 [2]河海大学计算机与信息学院,江苏南京210098

出　　处：《计算机仿真》2015年第10期301-304,共4页Computer Simulation

摘　　要：在对大规模网络入侵中未损坏节点进行定位的过程中,容易受到噪声的干扰,导致传统的定位方法,由于要求未损坏节点相互独立,当噪声不服从高斯分布时,对异常点敏感,不能有效实现未损坏节点的定位分析,提出一种基于加权多尺度分析的大规模网络入侵中未损坏节点定位方法,分析了大规模网络入侵中未损坏节点定位模型,依据该模型,对所有未知节点的初始局部坐标系进行建立,完成全部局部坐标系的融合,形成全局相对坐标,通过大规模网络入侵中的信标节点将全局相对坐标转换成初始全局绝对坐标,依据网络局部属性,获取最终参与局部代价函数改进的邻居集,完成未损坏节点初始绝对坐标的迭代求解,获取改进后的全局绝对坐标,分析了相对定位误差。仿真结果表明,所提方法具有很高的定位精度及有效性。The paper proposed a positioning method for undamaged node in large scale network intrusion based on weighting multi - scale analysis. The positioning model of undamaged node in large scale network intrusion was analyzed. On the basis of the model, the initial local coordinate systems of all the unknown nodes were established, to complete the integration of all local coordinate systems and form the global relative coordinates. Through the beacon nodes in large scale network intrusion, the global relative coordinates were transformed into initial global absolute co- ordinates. Based on the local properties of network, the neighbor set which eventually participates in local cost function improvement was obtained, so as to complete iteration solving of initial absolute coordinates of undamaged node, obtain the improved global absolute coordinates, and analyze the relative positioning error. The simulation results show that the proposed method has very high location accuracy and effectiveness.

关 键 词：网络入侵 未损坏节点 定位 

分 类 号：TH128[机械工程—机械设计及理论]