Online process mean estimation using L1 norm exponential smoothing

A basic assumption in process mean estimation is that all process data are clean. However, many sensor system measurements are often corrupted with outliers. Outliers are observations that do not follow the statistical distribution of the bulk of the data and consequently may lead to erroneous results with respect to statistical analysis and process control. Robust estimators of the current process mean are crucial to outlier detection, data cleaning, process monitoring, and other process features. This article proposes an outlier‐resistant mean estimator based on the L₁ norm exponential smoothing (L₁‐ES) method. The L₁‐ES statistic is essentially model‐free and demonstrably superior to existing estimators. It has the following advantages: (1) it captures process dynamics (e.g., autocorrelation), (2) it is resistant to outliers, and (3) it is easy to implement. © 2009 Wiley Periodicals, Inc. Naval Research Logistics 2009     

关于军用装备软件质量的认识和思考

高科技的军用装备,已经越来越多地依赖于软件,软件质量事关重大,因此我们更应该正确认识军用装备软件的质量。本文将从军代表的视角阐述软件质量的概念及软件质量监督的难点,分析运用软件工程方法的现状和制约因素,提出运用软件工程手段保证软件质量应注意的问题,以及如何正确认识“软件三库”的作用和定位。     

精益六西格玛在美军装备LCC管理中的应用及启示

精益六西格玛是精益思想与六西格玛管理方法的有机结合。本文简要介绍了精益六西格玛理论,在分析了美各兵种运用精益六西格玛提高装备使用可用度、降低装备寿命周期费用所取得成功经验基础上,提出了对我军运用精益六西格玛的对策与建议。     

新型自控式动活性检测仪特点分析

介绍了一种新型的自控式动活性检测仪,指出了该检测仪的结构和工作原理,分析了它的试验影响因素,同时探讨了其未来研究方向。     

大型宿舍楼火灾危险性评估

分析了大型宿舍楼消防安全工作存在的问题,并提出了相关对策.同时建立了火灾发生危险性评估指标体系,确定了权重,用模糊综合评判方法对某工厂大型职工宿舍楼进行了评估.     

军队组织工作的形成与发展

军队组织工作是中国共产党在军队中进行的党组织建设和干部队伍建设工作,是军队政治工作的重要内容,也是我军的优良传统和宝贵精神财富。军队组织工作从创立至今,为我军从胜利走向胜利提供了强大的精神支撑和组织保证。     

DEA models for two‐stage processes: Game approach and efficiency decomposition

Data envelopment analysis (DEA) is a method for measuring the efficiency of peer decision making units (DMUs). This tool has been utilized by a number of authors to examine two‐stage processes, where all the outputs from the first stage are the only inputs to the second stage. The current article examines and extends these models using game theory concepts. The resulting models are linear, and imply an efficiency decomposition where the overall efficiency of the two‐stage process is a product of the efficiencies of the two individual stages. When there is only one intermediate measure connecting the two stages, both the noncooperative and centralized models yield the same results as applying the standard DEA model to the two stages separately. As a result, the efficiency decomposition is unique. While the noncooperative approach yields a unique efficiency decomposition under multiple intermediate measures, the centralized approach is likely to yield multiple decompositions. Models are developed to test whether the efficiency decomposition arising from the centralized approach is unique. The relations among the noncooperative, centralized, and standard DEA approaches are investigated. Two real world data sets and a randomly generated data set are used to demonstrate the models and verify our findings. © 2008 Wiley Periodicals, Inc. Naval Research Logistics, 2008     

从战略高度把学习贯彻科学发展观引向深入

深入学习贯彻科学发展观,要从马克思主义发展观形成的历史过程中充分认识科学发展观的重大意义,进一步增强学习贯彻的系统性;从现阶段军队建设面临的主要矛盾中牢固确立科学发展观的指导地位,进一步增强学习贯彻的坚定性;从推进军事斗争准备和部队全面建设中充分认识提高贯彻科学发展观能力的客观要求,进一步增强学习贯彻的紧迫性。     

联合空时抗干扰天线阵的快速实现方法

联合空时抗干扰方法,性能优于单纯的空域或单纯的时域抗干扰,但是由于其计算复杂度大,实际应用受到一定限制.针对这一矛盾,在MSNWF基础上,通过分析抗干扰天线阵观测信号协方差矩阵的Toeplitz特性,构造高维Toeplitz矩阵,利用FFT技术,提出一种联合空时抗干扰天线阵的快速实现方法.计算量的比较结果表明该方法可以大大降低STAP的计算量,使得联合空时抗干扰技术的实际应用变得更容易.     

基于Chirp变换的快速离散时间尺度变换

提出了一种新的快速离散时间尺度变换算法。给出了离散时间信号尺度变换的构造表达式及其Chirp变换快速实现流程。讨论了Chirp变换实现中的参数选取准则,分析了Chirp变换的信号带宽问题。讨论了算法的运算效率并与其它算法进行了比较。仿真试验证明了本文算法的有效性。