ID 原文 译文
6734 与需要进行多维全局搜索的传统MUSIC算法相比,所提算法只需一维局部搜索,算法复杂度较低。 And compared to traditional MUSIC of the multidimensional global search algorithm, the proposed algorithm takes a local search, the algorithm complexity is low.
6735 该算法同时适用于均匀L阵和非均匀L阵,且能获得配对的二维角度与频率估计。 The algorithm applies to both the uniform L array and non-uniform L array, and can get matching 2 d Angle and frequency estimation.
6736 其角度与频率估计性能接近于传统的MUSIC算法以及平行因子方法,且优于借助旋转不变性估计信号参数算法和传播算子算法。 The Angle and frequency estimation performance close to the traditional MUSIC algorithm and parallel factor method, and is better than that of using rotational invariance algorithm and propagator algorithm estimated signal parameters.
6737 退化设备的剩余寿命(remaining useful life,RUL)预测是当前可靠性领域研究的一个热点问题。 The remaining life of the degradation of equipment (remaining useful life, url) prediction is currently a hot issue in research of reliability.
6738 基于Wiener过程,提出一种考虑随机冲击影响的非线性退化设备RUL预测方法。 Based on the Wiener process, considering the influences of random impact is a kind of nonlinear degenerate equipment url prediction method.
6739 首先,设备连续退化过程用一个非线性Wiener过程描述,而冲击导致退化水平突变的影响由一个复合泊松过程刻画; First of all, equipment continuous degradation process using a nonlinear Wiener process description, and impact level mutations cause degradation characterized by a compound poisson process;
6740 其次,基于所建立的退化模型和首达时间概念,推导出剩余寿命概率密度函数及其近似解析解,极大地减少了数值计算时间,并提出一种基于期望最大化算法的模型参数估计方法。 Secondly, based on the established regression models and first time concept, residual life probability density function is deduced and the approximate analytical solution and numerical calculation time is greatly reduced, and put forward a kind of model parameter estimation method based on expectation maximization algorithm.
6741 数值仿真和航天锂电池实例验证表明,所提方法提高了RUL预测的准确性,对于解决存在随机冲击影响的设备RUL预测问题具有一定的理论指导意义。 Validation of numerical simulation and space lithium battery examples show that the accuracy of the proposed method improves the url to predict, to solve the problem of equipment url with random impact prediction has a certain theoretical guiding significance.
6742 针对决策问题的不确定性和复杂性以及属性权重和专家权重未知等特征,提出一种融合新型偏好度模型和改进累积前景理论的决策方法。 For decision making problems of uncertainty and complexity as well as the unknown attribute weight and expert weight and so on characteristics, puts forward a new type fusion preference model and improve the decision-making method of cumulative prospect theory.
6743 首先,定义群决策问题的基本框架,将属性值和心理参考点改进为区间值; First, define the basic framework of group decision making problem, the attribute values and psychological reference points to improve as the interval value;