ID |
原文 |
译文 |
23125 |
针对无线传感器网络多目标跟踪传感器分配问题,考虑传感器能量、带宽、观测距离和通信距离受限,该文提出一种基于势博弈的分布式目标跟踪传感器分配算法。 |
Considering the limitation of energy, bandwidth, observation distance and communication distance in the Wireless Sensor Networks (WSN), a distributed sensor allocation algorithm based on potential game is proposed to solve the multi-target tracking problem. |
23126 |
算法基于目标预测位置,以几何精度衰减因子作为优化准则,建立了基于邻居合作促进整体最优化的传感器分配局部信息博弈模型,并证明了该模型是一个精确势博弈模型,存在纯策略纳什均衡。 |
The predicted coordinate of target and Geometric Dilution Of Precision (GDOP) is used to establish the sensor allocation game modal with local information, and it is proved to be an exact potential game with at least one Nash Equilibrium point. |
23127 |
在此基础上,提出了一种并行最佳响应动态的传感器分配方法,从理论上证明了所提算法只需要传感器与一跳邻居进行信息交互,就能收敛到纳什均衡并且拥有比传统最佳响应动态更快的收敛速度。 |
On this basis, a parallel best response dynamic is proposed as the learning algorithm to search the Nash Equilibrium point. It is proved that the learning algorithm can help the game modal converge to a Nash Equilibrium point, and has faster convergence speed than traditional best response dynamic when sensors just communicate with local one-hop neighboring ones. |
23128 |
同时借鉴通信网中的载波侦听多路访问机制,设计了一种完全分布式的决策节点推选机制,更加符合无线传感器网络自组织的特性。 |
In addition, a fully distributed decision makers selection mechanism is proposed on the basis of the Carrier Sense Multiple Access (CSMA), which is more satisfied with the self-organizing characteristic. |
23129 |
仿真结果表明所提算法在收敛速度、跟踪精度和能量有效性方面的优势。 |
The simulation results show that the proposed algorithm has great advantages in convergence speed, tracking accuracy and energy efficiency. |
23130 |
强杂波背景下的弱静止目标检测是机场跑道异物(Foreign Object Debris, FOD)监测雷达面临的关键问题。 |
Detection of weak targets in heavy ground clutter is the key issue for Foreign Object Debris (FOD) surveillance radar on airport runways. |
23131 |
该文提出一种基于特征谱特征和最小最大概率机(Minimax Probability Machine, MPM)的 FOD 分层检测算法,首先利用杂波图恒虚警(Constant False Alarm Rate, CFAR)将雷达录取回波中的背景杂波和 FOD 回波(包含虚警)区分开,然后提取特征谱特征将在回波域中差异较小的 FOD 回波和虚警回波转换到区分性更大的特征域,最后利用MPM 分类器实现对 FOD 和虚警的分类,从而达到降低虚警次数的目的。 |
A novel hierarchical FOD detection method is proposed based on eigenvalue spectrum feature extraction and Minimax Probability Machine (MPM). The clutter map Constant False Alarm Rate (CFAR) detection algorithm is utilized firstly to categorize radar echoes into two kinds, i.e., background clutter and the FOD returns (including the false alarm returns). Then eigenvalue spectrum features are extracted to transform the FOD returns and false alarm returns into the feature domain where the FOD and false alarm are more distinguishable. Finally, the MPM classifier is utilized to categorize the FOD and false alarm into different kinds so as to reduce the false alarm rate. |
23132 |
基于实测数据的试验结果表明,所提方法可以获得较好的检测性能。 |
Experiments results based on measured data show that the proposed method can achieve good detection performance. |
23133 |
方向调制技术利用多天线发射阵列的空间调制能力在天线端综合出具有方向特性的数字调制信号是近年来物理层安全通信领域研究的热点之一。 |
The design of Directional Modulation (DM) signal by a phased array is one of the important topics in the field of physical layer security communication. |
23134 |
该文提出一种基于凸优化的稀疏阵列方向调制信号综合算法。 |
In this paper, a synthesis method for synthesis of a sparse array is proposed based on convex optimization. |