【摘要】 目标跟踪定位算法通过簇头节点与汇聚节点之间的通信来定位预测目标位置,但在信息传递过程中会因中间路由出错或者外部攻击致使到达汇聚节点的信息出现错误或丢失,影响目标定位预测的精度。通过分析路由过程中可能产生误差的原因(例如乱序和丢包)以及受攻击之后数据的特征采取有效策略,在汇聚节点接收到信息之后进行检测,排除异常数据,防止错误信息的干扰。仿真实验表明,在非理想状态下加入信息检测机制之后相对于无检测机制的情况定位精度提高,跟踪轨迹更加精确。更多还原

【Abstract】 Target tracking and localization algorithm can get the current position or predict the next stage position of target through communication between cluster-heads and sink,but the information may be wrong or lost during the routing because of random sequence,packet loss or external attacks,which eventually affected the target prediction accuracy.The paper analyzed the error sources in routing and data characteristic after being attacked,then took effective measures,doing information detection after the sink received the data in order to eliminate the abnormal information and prevent interference of the error data.The simulation results show that the positioning accuracy and tracking trajectory are improved in undesirable condition when using the information detection mechanism compared with the general case.更多还原