ID | 原文 | 译文 |
6534 | 研究表明,用于超长波观测的宽带有源天线并不是传统意义上的被动天线和前置放大器的组合,其主要作用是阻抗匹配,并可兼顾噪声要求。 | Research has shown that for super long wave observation of broadband active antenna is not in the traditional sense of the passive antenna and the combination of preamplifier, its role is largely impedance matching, and consider the noise requirements. |
6535 | 针对认知无线网络中感知用户(sensing user,SU)之间协作效用低的问题,将联盟博弈论应用到频谱感知中,提出了一种基于联盟博弈的分布式协作频谱感知方法。 | Perception in cognitive wireless network users against (sensing user, SU) collaboration between the problem of low utility, the union game theory is applied to the spectrum perception, this paper proposes a distributed collaborative spectrum sensing method based on the league game. |
6536 | 该方法首先通过SU进行本地频谱感知,然后利用联盟形成规则将SU分成若干联盟,在单用户优先准则下进行联盟间信息交换,经过迭代形成稳定的联盟分区结构,最后融合联盟内的感知信息完成频谱感知。 | This method first local spectrum sensing by SU, then use formation rules will SU into the league, under the rule of single user priority information exchange between alliance, through iteration to form stable coalition partition structure, finally complete spectrum perception fusion within the union of sensory information. |
6537 | 仿真结果表明,采取的单用户优先准则较传统合并分裂准则,灵活性更高,形成的联盟效用值更大,在协作频谱感知中提高检测概率的同时降低了虚警概率,具有更好的频谱感知性能。 | Simulation results show that the rule of single user preferred more traditional merger division criterion, higher flexibility, the formation of coalition utility value, improve the detection probability in the collaborative spectrum sensing at the same time reduces the false alarm probability, has better performance of spectrum sensing. |
6538 | 开展角闪烁噪声下的目标跟踪问题研究对提高传感器的探测性能具有重要意义,其中角闪烁噪声具有的非高斯特性是一个长期困扰研究者的难点。 | Research on target tracking problem under the angular glint noise is of great significance for improving the detection performance of the sensor, the angular glint noise of non-gaussian characteristics is a key problem for a long plagued researchers. |
6539 | 针对该问题,首先通过理论分析指出了容积粒子滤波(cubature particle filter,CPF)在角闪烁噪声下的性能缺陷。 | Aiming at this problem, first of all, through the theoretical analysis points out the volume particle filter (cubature particle filter, CPF) under the angular glint noise performance defects. |
6540 | 其次,基于高斯和滤波(Gaussian sum filter,GSF)框架和容积卡尔曼滤波(cubature Kalman filter,CKF)算法,提出了适用于角闪烁下的高斯和容积卡尔曼滤波(Gaussian sum cubature Kalman filter,GSCKF)算法。 | Secondly, based on the Gaussian and filtering (Gaussian sum filter, GSF) framework and the volume of Kalman filtering (cubature Kalman filter, CKF) algorithm, and put forward the suitable for Gaussian and volume under the angular glint of Kalman filter (Gaussian sum cubature Kalman filter, GSCKF) algorithm. |
6541 | 该算法将目标后验概率密度用高斯密度加权求和近似,通过多路并行的CKF实现状态预测与量测更新,同时利用模型降阶算法限制高斯分量数目的增长,能应用于非线性、非高斯条件的状态估计。 | The algorithm will target a posteriori probability density with Gaussian density weighted summation approximation, by multichannel parallel CKF update state prediction and measurement, at the same time, using the model order reduction algorithm limits the number of Gaussian components, can be applied to state estimation of nonlinear, non-gaussian conditions. |
6542 | 最后,设计了仿真实验对GSCKF和CPF的跟踪精度、鲁棒性和计算复杂度进行了对比。 | Finally, design the tracking precision of the simulation experiment of GSCKF and CPF, robustness, and compares the computing complexity. |
6543 | 针对多约束条件下的中末制导交班问题,提出一种考虑自动驾驶仪动态特性的滑模中制导律。 | In view of the constraint conditions of terminal guidance problem, succession considering autopilot is a kind of dynamic characteristics of the sliding mode guidance law. |