ID 原文 译文
55898 针对产品性能退化数据样本个数少、退化轨迹存在非线性与随机性的特点,提出了一种灰色时序组合模型对产品的退化轨迹进行建模并实时预测个体寿命。 On product performance degradation data sample number less, the degradation path exists nonlinear and stochastic characteristic, this paper proposes a grey timing sequence model for products of degradation path modeling and real-time forecasting the individual life.
55899 首先,采用灰色系统GM(1,1)模型和时间序列AR(p)模型分别对同类产品退化数据中的趋势项与随机项进行预测,构造灰色时序组合预测模型来建立同类产品的退化轨迹。 First of all, using the gray system GM (1, 1) model and time series AR (p) model of the similar product degradation data respectively predict the trend item and random item, constructs the gray sequence combination forecast model to establish the degradation of the same kind of track.
55900 然后,根据K均值聚类理论计算特定个体与同类产品退化轨迹的相似度权值,通过加权同类产品的退化轨迹来获得特定个体的退化轨迹;最后,通过个体实测退化数据更新退化模型并实时预测寿命。 Then, according to the k-means clustering theory calculation with specific individual degradation path of the weights of similarity, similar product through weighted degradation path for particular individuals of the same kind of degradation path;Finally, through individual measured degradation data update degradation model and real-time prediction life span.
55901 将本文方法用于某电子产品的寿命预测中,试验结果验证了该方法的准确性与有效性。 Will the method used for life prediction of an electronic product, the experimental results verify the effectiveness and accuracy of the method.
55902 针对防空导弹弹道跟踪问题,基于滑模变结构理论设计了一种弹道跟踪制导律。 For anti-aircraft missile trajectory tracking problem, based on the sliding mode variable structure theory a trajectory tracking guidance law is designed.
55903 首先,采用弹道坐标变量而不是时间变量对导弹质点运动模型线性化,得到允许扰动范围更大的线性化模型;接着,基于单输入线性系统滑模变结构控制理论设计滑模面和制导指令,并给出制导系统工作原理;最后,在一定干扰作用下,将所设计的跟踪制导律应用于导弹质点运动仿真,从模型优劣、抑制随机风干扰能力、鲁棒性等方面进行分析,并与线性二次型调节器(linear quadratic regulator,LQR)跟踪制导律进行了比较,结果表明,该线性化模型与以时间为自变量的线性化模型相比具有一定优势,且滑模制导律对模型不确定性具有更好的鲁棒性。 First of all, the ballistic coordinates variables rather than the time on the particle motion model linearization, the linear model of disturbance range allows greater;Then, based on the single input linear system design the sliding surface and sliding mode variable structure control theory guidance instruction, and give guidance system principle of work;Finally, under the effect of certain interference, the design of missile guidance law is applied to the simulation of particle motion, from quality model, random wind interference suppression ability and robustness is analyzed, and compared with linear quadratic regulator (linear quadratic regulator, LQR) tracking guidance law are compared, the results show that the linearization model is compared with the linear model with time as the independent variable has a certain advantage, and the sliding mode guidance law have better robustness to model uncertainty.
55904 随着空中交通流量的增加,为了保障飞行高效和安全,对短期冲突探测的精度和实时性提出了很高要求。 With the increase of air traffic flow, in order to ensure efficient and safe flight, for short-term conflict detection precision and real-time high requirements are put forward.
55905 基于混杂系统和位置空间离散的思想提出了一种概率型短期冲突探测算法。 Based on the idea of mixed discrete system and location space of a probabilistic short-term conflict detection algorithm is proposed.
55906 使用监视信息中的航迹和意图信息,基于状态相关的随机线性混杂系统来进行短期的航迹预测。 Use of monitoring information track and intention information, random linear hybrid system based on state related to short-term track forecast.
55907 飞机预测航迹呈多维高斯分布,基于航迹位置空间离散化思想,对预测航迹位置空间离散并根据位置的概率密度函数来计算冲突概率。 The plane forecast track is a multidimensional gaussian distribution, based on dead reckoning position space discretization, the forecast track space discrete and according to the location of the probability density function to calculate the collision probability.