ID 原文 译文
49136 提出了一种基于因果贝叶斯网络的风险建模与分析方法,所提方法由基于业务流程分析的风险识别、基于贝叶斯因果网络的风险建模和关键风险事件识别三个主要步骤组成,有利于识别和评估风险事件间因果关系,为制订高效的风险应对计划提供可靠的依据。 Presents a risk based on causal bayesian network modeling and analysis methods, the proposed method is based on business process analysis by risk identification, risk based on bayesian causal network modeling and identification of key risk events of three main steps, causal relationship between, is helpful to identify and evaluate risk events for a reliable basis for effective risk response plan.
49137 所提方法被应用于某公司国际采购风险分析中,取得显著效果。 Proposed method was applied to the risk analysis of a company's international purchasing, achieved significant effect.
49138 针对车载卫星移动通信系统的波束指向跟踪问题,提出一种基于同时扰动的单通道接收阵列天线跟踪方法。 For beam pointing to the tracking problem of vehicle-mounted mobile satellite communication systems, based on a method of tracking and disturbance of single channel receiver antenna array.
49139 由于无法获得目标函数的准确梯度,所提方法对控制变量采用无差别的随机扰动,实现了单通道接收阵列波束指向的精确对准; Because can't get accurate gradient of the objective function, the proposed method of control variables by indiscriminate random disturbance, has realized the single channel receiver array beam pointing to the precise alignment;
49140 通过分析移相器对波束指向的影响,提出了改进的同时扰动跟踪方法,加快了跟踪过程的收敛速度,为实现车载相控阵天线的精确、快速跟踪提供了一种新思路。 By analyzing the phase shifter's influence on the beam direction, puts forward the improved method of tracking disturbance at the same time, speed up the convergence speed of the tracking process, to achieve the precision of the on-board phased array antenna, fast track provides a new way of thinking.
49141 与现有跟踪方法相比,所提方法直接扰动移相器而不是波束指向,减小了移相器参数变化和系统误差对跟踪结果的影响,提高了波束跟踪的稳定性,降低了天线设计的硬件要求。 Compared with the existing tracking methods, the proposed method directly instead of beam-pointing disturbance phase shifter, reduced the phase shifter parameter change and the influence of system error of tracking results improve the stability of beam tracking, reduces the hardware requirements of antenna design.
49142 提出了一种基于压缩感知理论的稀疏多径信道估计方法。 This paper proposes a sparse multipath channel estimation based on the theory of the compression perception method.
49143 利用训练序列设计了一种简化的Toeplitz结构观测矩阵,证明了观测矩阵满足限制等距特性,可以作为压缩感知的观测矩阵。 Using the training sequence design a simplified Toeplitz structure matrix, and proves that the observation matrix satisfy limiting isometric characteristics, can be used as compression perception of the observation matrix.
49144 根据此矩阵的近似正交性特点对正则化迭代硬阈值算法进行简化,并引入精英策略提出一种归档正则化迭代硬阈值估计算法。 According to the characteristics of regularization matrix approximation orthogonality is to simplify the iterative hard threshold algorithm, and introduce the elite strategy put forward a kind of archive regularization iteration hard threshold estimation algorithm.
49145 仿真结果表明,该估计方法相对于迭代最小二乘法具有更优的性能,且提出的归档正则化迭代硬阈值算法兼具收敛速度快和稳定性高的优点。 Simulation results show that the estimation method is compared with the iterative least squares method has better performance, and archive regularization iteration hard threshold algorithm combines the advantages of fast convergence rate and high stability.