ID 原文 译文
48916 根据采样信号的插值理论,推导出了分数延迟直达波相对于参考信号具有非因果系统响应的特点,然后在传统NLMS对消器的基础上,通过增加部分非因果的滤波网络同时实现了最小均方误差(least mean square error,LMSE)准则下的自适应插值和杂波抑制。 According to the sampling signal interpolation theory, this paper deduced the fractional delay direct wave relative to the reference signal has the characteristics of the causal system response, and then on the basis of traditional NLMS cancellation, by adding some non causal filter network and to achieve the minimum mean square error (further mean square error, the LMSE) rule of the adaptive interpolation and clutter suppression.
48917 经过计算机仿真及实测数据验证,该算法相较于目前已有方法能够降低计算复杂度,并在相同条件下获得更高的杂波相消比。 Through the computer simulation and the measured data validation, the proposed algorithm compared with existing methods can reduce the computational complexity, and in the same conditions for higher than clutter cancellation.
48918 当前,软件需求优化的研究多集中在提高需求的完整性、设定需求的优先级以及消除需求的歧义性等方面。 At present, the software requirements optimization research more focus on improve the integrity of the demand, priority setting requirements, and eliminate the ambiguity requirements, etc.
48919 从需求优先级设定入手来进行需求优化,首先从系统的整体性和需求的层次性出发,提出以解释结构模型(interpretative structural model,ISM)和层次分析(analytical hierarchy process,AHP)法相结合的需求优先级排序方法。 Demand from the perspective of the demand for priority setting for optimization, first of all, from the integrity of the system and the hierarchy of needs, put forward to explain structure model (interpretative structural model, ISM) and analytic hierarchy (analytical hierarchy process, the AHP) method needs prioritization method.
48920 其中,ISM对需求进行结构优化和分层处理,然后对最上层的需求使用AHP进行需求优先级排序,并将该方法命名为结构层次分析(structural analytical hierarchy process,SAHP), Among them, the ISM to structure optimization and hierarchical processing requirements, and then the demand for the top priority of using AHP to demand, and the method named structure hierarchical analysis (structural analytical hierarchy process, SAHP),
48921 接着通过与AHP的比较,说明性能总体上好于后者,最后通过进度和成本约束,表明该方法能够判断项目进度和成本的合理性,降低因需求导致项目失败的风险。 then comparing with the AHP, the overall performance is superior to the latter, finally through the schedule and cost constraints, show that this method can judge the rationality of the project schedule and cost, reduce the risk of project failure caused by demand.
48922 针对应急条件下对地观测任务时敏度高、动态性强的特点,提出了基于任务动态合成的多星应急调度方法。 For earth observation tasks under the condition of emergency with high sensitivity and strong dynamic characteristics, dynamic synthesis is proposed based on the task of multiple emergency scheduling method.
48923 首先,建立了多星动态应急调度数学规划模型。 First of all, many star dynamic emergency scheduling mathematical programming model is established.
48924 然后,提出了任务动态合成(dynamic merging,DM)策略,并设计了候选合成任务集合构建(candidate merging task set establishment,CMTSE)算法。 Then, put forward the task of dynamic synthesis (dynamic merging, DM) strategy, and designed a candidate set of synthetic task to build (candidate merging task set establishment, CMTSE) algorithm.
48925 最后,提出了基于任务动态合成的多星动态应急调度(dynamic merging based dynamic emergency scheduling,DM-DES)算法。 Finally, put forward based on dynamic synthesis of star dynamic emergency tasks scheduling (dynamic merging -based dynamic emergency scheduling, DM - DES) algorithm.