ID |
原文 |
译文 |
46126 |
DTN(delay tolerant network)网络时变特征导致静态网络的路由算法无法求解该网络中给定业务的快速传输问题。 |
The DTN network has the characteristics of dynamic topology change,thus the routing algorithm of static net-work can not solve the routing problem of time-varying network, and can not support fast transmission of given tasks. |
46127 |
时变路由算法 CGR (contact graph routing)利用链路最早连通时段获得最短路径,由于连通时段先后顺序影响导致其算法链路利用率低下。 |
The existing time-variant routing algorithm CGR (contact graph routing) uses the earliest contact to obtain the shortest path, but because of the influence of the order of the connectivity period, the CGR algorithm has low link utilization. |
46128 |
针对该问题,对端到端最短路径的路由方法进行了研究, |
To solve this problem, the method of finding the shortest path was proposed. |
46129 |
在时间聚合图中增加节点缓存时间序列表征同一链路不同时间段之间的联系, |
Besides, in order to characterize the relation between the different connect periods of the same link, the time series of node cache was added to the time aggregated graph. |
46130 |
采用深度优先搜索从目的点向源节点反向找路,求解出已知业务需求端到端最短时延算法。 |
Based on this, the end-to-end multi-path shortest delay routing algorithm for the known task requirements was proposed. |
46131 |
用样例证明了算法的可行性。 |
Finally, the feasibility of the algorithm was proved by an example. |
46132 |
为解决基于希尔伯特黄变换(HHT, Hilbert-Huang transform)的特定辐射源识别方法在时频分析方面存在缺陷,所提特征可分性差的问题,该文基于固有时间尺度分解(ITD, intrinsic time-scale decomposition)提出一种新的辐射源个体识别方法。 |
To solve the defects of time-frequency analysis and poor separability of extracted features in specific emitter identification (SEI) based on Hilbert-Huang transform (HHT), a novel SEI method based on intrinsic time-scale decomposition (ITD) was proposed. |
46133 |
首先,通过固有时间尺度分解的方法将信号分解,进而得到其时频能量分布;之后,将信号时频能量谱转化为灰度图像,通过直方图统计和灰度共生矩阵提取图像纹理特征对不同信号进行识别。 |
ITD was utilized to decompose the emitter signals and get the time-frequency energy distribution (TFED) firstly, later the TFED spectrum was transformed into gray image and several image texture features through histogram statistic and gray-level co-occurrence matrix was extracted for identification. |
46134 |
分别采用实测舰船通信信号以及仿真辐射源信号对所提算法进行性能测试, |
Measured ship communication signals and simulated emitter signals were used to test the performance of proposed method. |
46135 |
实验结果表明,其性能优于 2 种基于希尔伯特黄变换的方法。 |
Compared with an-other two SEI methods based on HHT, the proposed method is proved more effective in identification accuracy. |