第五方物流的GIMIS对讲调度平台

综述了第五方物流及其相关技术发展,研究基于第五方物流的GIMIS中间件,提出基于第五方物流的GIMIS对讲调度运营平台.     

Generalized reliability measures of Kalman filtering for precise point positioning

To deal with the adverse influence of model failures on Kalman filtering (KF) estimation, it is necessary to investigate the generalized reliability theory, including the model failure detection and identification method as well as the separability and reliability theories. Although the generalized reliability theory for the least square has been discussed for many decades, the generalized reliability theory of KF is not widely discussed. Compared with the least square, KF includes not only the measurement model, but also the dynamic model. In KF, the predicted value of the state parameters from the dynamic model is considered as pseudomeasurements and combined with the observed measurements to compose the form of the least square. According to the reliability of the least square, the generalized reliability of KF is derived. Then, the dynamic model failure of precise point positioning is simulated to demonstrate the usage of the generalized reliability theory. The results show that the adverse influence of the dynamic model failure is more severe than that of the measurement model. Moreover, it is recommended that the model failure identification should always be used even if the overall model test passes. It is shown that the derived generalized reliability measures are suitable for the generalized KF estimation.     

信道传输低通滤波器的最优化设计

本文采用Pspice对有源滤波器的最优化设计进行了讨论.以4阶巴特沃思(Butterworth)低通滤波电路为例,进行了电路性能、参数扫描分析,对滤波器电路结构和参数设定进行了最优化处理.采用蒙特卡洛分析方法对电路参数的容差进行了估计并在此基础上进行了400次统计分析,绘制出直方图对该电路设计投入生产时的成品率进行了预估计.结果证明了该方法的有效性及电路可靠性.     

Consensus intuitionistic fuzzy group decision-making method for aircraft cockpit display and control system evaluation

A novel group decision-making (GDM) method based on intuitionistic fuzzy sets (IFSs) is developed to evaluate the ergonomics of aircraft cockpit display and control system (ACDCS). The GDM process with four steps is discussed. Firstly, approaches are proposed to transform four types of common judgement representations into a unified expression by the form of the IFS, and the features of unifications are analyzed. Then, the aggregation operator called the IFSs weighted averaging (IFSWA) operator is taken to synthesize decision-makers’ (DMs’) preferences by the form of the IFS. In this operator, the DM’s reliability weights factors are determined based on the distance measure between their preferences. Finally, an improved score function is used to rank alternatives and to get the best one. An illustrative example proves the proposed method is effective to valuate the ergonomics of the ACDCS.     

关于序列商π的（P）映射

建立了度量空间的序列商π的（P）映像的内在特征.     

新奥法中喷锚联合支护的应用(一)

新奥法不同于传统的开挖、支撑、模注衬砌施工方法,它是将隧道全断面一次掘出,在开挖洞室的同时,尽可能迅速地连续观测围岩的位移和变形,能起到防止松弛、坍塌和产生松散压力等作用。     

一种基于干扰观测器的内模控制方法

为保证内模控制的可实现性以及满足鲁棒性需要引入滤波器，但是滤波器的存在会导致跟踪滞后和无法有效抑制正弦扰动。针对这一问题本文提出了一种基于干扰观测器（DO）的内模控制方法。该方法能够抑制由阶跃扰动和正弦扰动组成的复合扰动：通过观测器可以对正弦干扰进行观测和补偿，内模控制器抑制阶跃干扰和观测器的补偿误差。对单机械臂的仿真证明了该方法的有效性。     

城市垃圾收运系统优化模型研究综述

在综述国内外城市生活垃圾收运现状的基础上，从收运设施规划、收运调度以及收运路线优化等三方面详细分析了当前国内外收运系统优化模型的研究进展，总结了研究成果，指出了研究缺乏系统性和实际应用性，并提出了建立中转站规划-调度一体化优化模型和在规划基础上的优化路线的优化模型的整体研究框架，为我国大城市和人口密集背景下的生活垃圾收运系统的研究及完善提出了前进方向。     

一类特殊的拓扑空间——θ-复形

发展了Dikranjan构造若干个Hausdorff非正则的想法,给出了一类特殊拓扑空间——θ-复形的定义,并列举了几个典型例子进行说明.     

悲壮凄婉 撼人心魄——古筝协奏曲《临安遗恨》解析

《临安遗恨》以其新颖的古筝音乐艺术和演奏技术开发奠定了它中国新时期筝乐代表的历史地位。它在筝乐历史发展中承前启后，在技术探索中传统而又现代，在艺术特色上个性突出，在中国古代音乐文化的现代化发展上进行了卓有成效的具态探索。