ID |
原文 |
译文 |
2233 |
单个原则用来关注软件架构特定方面的演进效果,四个原则结合起来关注软件架构的综合演进效果。 |
A single principlefocuses on a specific aspect of the evolution effects of the software architecture. The combination of four principles focuseson the comprehensive evolution effects of software architecture. |
2234 |
针对高速移动场景下信道快时变特性给多输入多输出(Multiple Input Multiple Output,MIMO)系统预编码带来的技术挑战,提出基于动态信道状态信息(Channel State Information,CSI)的 MIMO 系统改进模代数预编码(Tomlinson-Harashima Precoding,THP)算法。 |
Aiming at the technical challenges brought about by the fast time-varying characteristics of the channel inhigh-speed scenes to precoding in multiple input multiple output (MIMO)system, this paper proposes an improved Tomlin-son-Harashima precoding (THP)algorithm for MIMO systems based on the dynamic channel state information (CSI)mod-el. |
2235 |
该算法利用信道统计量信息以及相关性构建动态 CSI 模型,更准确实时地体现当前信道状况; |
Channel statistical information and correlations are exploited to compensate instantaneous CSI, which could reflect currentreal-time channel status exactly. |
2236 |
进一步地,提出一种基于循环遍历搜索的多用户调度算法,以最大化信干噪比为目标进行用户调度,且将多用户调度算法应用到 THP 中,提高了预编码精度。 |
Further, aimed at maximizing the signal to interference plus noise ratio, a multi-user schedu-ling algorithm based on loop traversal search is proposed. And the multi-user scheduling algorithm is applied to THP, which could improve the precoding accuracy of the traditional THP. |
2237 |
仿真结果表明,所提算法相比传统预编码算法具有更优的误码率性能和信道容量,验证了所提算法能有效地适应高速移动场景。 |
Simulation results show that the proposed scheme can be effi-ciently applied to high-speed mobile scenario, and improve bit error ratio performance as well as channel capacity. |
2238 |
为解决相控阵雷达事件调度问题中调度成功率、时间偏移率与算法时效性三者之间的矛盾,本文提出一种基于分支定界法的调度算法; |
To solve the contradiction of the scheduling success rate (SSR), the time shifting rate (TSR)and the al-gorithm timeliness in the task scheduling of phased array radar, this paper proposes a scheduling algorithm based on thebranch and bound method (BBM ). |
2239 |
该算法首先在现有调度结果上调取所有可执行事件,即获得若干“节点”,多步递推后由多“层”节点形成若干条备选“分支”, |
Firstly, this algorithm acquires all executable tasks from available scheduling results, i. e. , obtaining several“nodes”on multiple“layers”, and forms several optional“branches”with these nodes through mul-tistep recursion. |
2240 |
扩大解空间范围,提高算法性能; |
In this way, the range of solution space is extended, and the algorithm performance is improved. |
2241 |
然后通过“删减”操作删减掉收益较低分支,将解空间控制在一适当范围内,减小搜索盲目性,降低算法计算量。 |
Then, this algorithm“discards”branches with low yield and keeps the solution space to a certain range, which improves the accuracy of the algorithm and reduces the calculation amount. |
2242 |
仿真实验表明,与基于综合优先级算法的调度结果相比,利用本文算法调度时调度成功率提升了 52% ; |
The simulation experiment indicated that compared with the algorithm based on integrated priority The simulation experiment suggested that the proposed algorithm enjoyed a 52% increase inscheduling success rate(SSR)over the traditional integrated priority algorithm, |