平衡型PN序列的一种构造方案

根据混沌结构下PN序列的生成方案，本文对生成平衡型PN序列的相关特性进行了研究，实测表明所生成序列具有良好的自相关和互相关特性，同时该序列还有接近理想的线性复杂度，具备相当的实用价值，为PN序列的选择提供了新的途径。     

基于对策编组的时敏目标打击方案生成方法

提出了一种基于对策编组的时敏目标打击方案快速生成方法。在给定时敏目标及各类作战资源相关信息的前提下,通过建立并求解时敏目标集与打击对策集之间的编组优化模型来实现打击方案的快速生成。生成的方案能够确保在攻击窗口内以最短的时间完成打击任务,从而提高了对时敏目标的快速打击能力。     

仿真雷达组网方案生成方法

提出了一种基于仿真的雷达组网方案生成方法,研究基于仿真的设计(SBD)方法在雷达组网的分析、设计与评估中的应用过程,并建立了基于仿真的雷达组网方案分析设计一体化集成环境.该方法针对雷达组网方案分析、设计的具体需求,以建模与仿真技术为支撑,有助于对多任务条件、多种战术背景下的雷达组网方案进行分析、评估和优化,为雷达指挥所指挥员和作战参谋提供雷达组网方案的辅助分析,提高指挥所在多种战术背景下的快速反应能力和整体作战指挥能力.     

面向任务的装备组合方案生成与评估方法

“决策中心战”谋求通过给对手施加不确定性创造决策困境,从而获取决策优势。面向决策中心战条件下获取决策优势的需求,提出了面向任务的装备组合方案生成与评估方法,基于决策复杂度选择更具不确定性的装备组合方案。该方法包括装备组合方案生成、基于帕累托最优的装备组合方案筛选、基于决策复杂度的装备组合方案评估等步骤,仿真推演的结果验证了该方法的有效性。     

舰载武器系统研制方案多目标生成与评价方法

舰载武器系统研制方案的生成、评价与优选问题是武器装备研制论证中的重要内容.在分析目前舰载武器系统研制方案论证方法的基础上,构建了舰载武器系统多目标优化模型,提出了舰载武器系统研制方案的多目标生成方法,并建立了不完全偏好信息的舰载武器系统研制方案的多目标评价与优选模型.实例分析说明,该模型与方法是有效的,可为武器装备研制论证问题提供辅助决策方法和智力支持.     

防空兵侦察力量机动部署方案优选与评估

针对防空兵侦察力量机动部署问题,分析并生成了机动部署方案,运用模糊灰色关联分析法选出其中的最优方案。通过实例计算得出了信息化条件下,防空兵侦察力量进行机动部署可有效提高其作战效能的科学结论,并验证了算法的有效性。     

作战资源规划方案生成时间分析

资源规划是联合作战中一项重要环节,资源规划方案对提升联合作战的效率,达到更好的作战效果具有重要意义。现代战争的速度越来越快,如何在最短时间内能够生成较优的资源规划方案,提高决策反应速度,是联合作战中需考虑的关键问题。本文在基于MDLS算法的基础上,通过计算机仿真,分析了平台数量和平台优先权对资源规划方案生成时间的影响,得出了相关结论。     

一种改进的指数型序贯抽样检验方法

针对指数型产品的可靠性验收问题,通过分析总结两次序贯概率比检验和序贯网图检验的思想,提出了一种改进的序贯抽样检验方法。通过构造验收风险的马尔可夫链模型,研究了改进的指数型序贯抽样检验方案的风险计算方法。在此基础上,给出了指数型序贯抽样检验方案的制定程序。实例分析表明:改进的指数型序贯抽样检验方案在保证截尾时间的条件下,明显降低了美军标MIL-STD-781C标准方案的验收风险,可以更好地满足双方的风险要求。     

成败型产品的Bayes鉴定试验方案研究

利用可靠性增长模型给出了成败型产品鉴定试验的一种Bayes方法.提出了Bayes鉴定试验的最大后验风险准则,利用这种准则制定的鉴定试验方案综合了产品研制过程中的先验信息.在确保产品质量的前提下,与传统的鉴定试验方案相比,将大大节省试验时间.     

武警部队应急铁路输送方案自动生成系统

为了提高战备铁路输送方案的编制速度 ,本文研究开发了应急铁路运输方案自动生成系统 ,提出了列车梯队自动划分模型和梯队铁路装载计划生成模型 ,应用表明 ,两种模型是非常实用和有效的     

Toward a determination of optimal multilevel sampling plans

Traditionally continuous sampling plans have been evaluated according to relatively few criteria. These typically include the OC curve (on which AQL systems are based), the ASN, and the AOQ curve. These characteristics are all calculated under the assumption that the process is “in control” so that mathematically they are derived as long-term averages. Thus, any two plans which (long term) spend the same proportion of time on each type of sampling inspection will be identical relative to these criteria. This is true whether sampling from lots or doing unit-by-unit inspection. The goal is to first establish desirable additional criteria and then to develop methods to determine which procedure (of those which satisfy the standard criteria) is optimal relative to the new criteria. To be considered will be measures of a plan's ability to detect a sudden drop in quality (such as ARL).     

计数序贯抽样检验方案的OC函数和ASN

根据序贯概率比检验的理论,给出计数序贯抽样检验方案的设计原理,得到国家标准GB／T8051—2008中计数序贯抽样检验方案的OC函数和ASN的计算方法。     

The effect of nonnormality on variables sampling plans

Acceptance sampling plans based on variables have been in use for many years. Recently, there has been a renewal of interest in these plans, because of the relative efficiencies that they offer with respect to attributes sampling regarding sample size. Furthermore, in situations where acceptable quality levels are very small, and a high level of protection is desired, variables sampling is often much more efficient than attributes sampling. An important disadvantage of variables sampling is that the distribution of the parameter being inspected must be known. Most standard variables sampling plans assume that the distribution of this parameter is normal. This article examines the effect of the normality assumption in variables sampling. Methods to detect departures from normality are reviewed.     

计数抽样检查标准ISO2859、JISZ9015、GB2828放宽检查抽样方案优良性分析

文对ISO2859、JISZ9015和GB2828三个标准的放宽检查抽样方案的OC和ASN曲线进行了全面的计算和分析,重点讨论了上述标准的二次和多次抽样方案的等效性和有效性,并对各标准优良性进行了分析和评价。     

Sequential and systematic sampling plans for the Markov‐dependent production process

Acceptance sampling plans are used to assess the quality of an ongoing production process, in addition to the lot acceptance. In this paper, we consider sampling inspection plans for monitoring the Markov‐dependent production process. We construct sequential plans that satisfy the usual probability requirements at acceptable quality level and rejectable quality level and, in addition, possess the minimum average sample number under semicurtailed inspection. As these plans result in large sample sizes, especially when the serial correlation is high, we suggest new plans called “systematic sampling plans.” The minimum average sample number systematic plans that satisfy the probability requirements are constructed. Our algorithm uses some simple recurrence relations to compute the required acceptance probabilities. The optimal systematic plans require much smaller sample sizes and acceptance numbers, compared to the sequential plans. However, they need larger production runs to make a decision. Tables for choosing appropriate sequential and systematic plans are provided. The problem of selecting the best systematic sampling plan is also addressed. The operating characteristic curves of some of the sequential and the systematic plans are compared, and are observed to be almost identical. © 2001 John Wiley & Sons, Inc. Naval Research Logistics 48: 451–467, 2001     

带有先验分布的Bayes统计抽样方案费用评价模型

以往在评价和比较几个统计抽样方案时,多从比较分析两种风险率入手,由于这种方法的局限性,往往不能得出满意的结论。本文利用Bayes方法,在给出先验分布及有关损失函数的条件下,从各种抽样方案的平均总损失入手比较几个可选方案的优良性。本文提供的与二项分布相对应的算法具有一般意义。示例所得结果也是令人满意的。     

Some experiences using MIL-STD-105 in the united states air force

The historical and, to some extent, the current role of attribute inspection sampling in the United States Air Force is described. Some insight into consideration culminating in revisions made to the original MIL-STD-105 sampling plans is provided. These revisions were motivated from a practitioner's perspective rather than that of a statistical expert. Some significant administrative applications within the Air Force are described, and a practical method, based on the total amount of inspection, is given for distinguishing between sampling plans that have a fixed risk level (i.e., common value on the OC curves).     

A comparison of several attribute sampling plans

The purpose of this research is to examine several types of procedures for attribute sampling inspection-the widely used Military Standard 105D plans [8], the lesser known Double Zero plans as developed by Ellis [4] and the Narrow Limit gaging plans of Ott and Mundel [9]. Each of the procedures is described with an effort made to illuminate their more subtle features. Then the plans are compared, whence it is revealed that (i) Narrow Limit gaging plans have a serious weakness in comparison to the others and (ii) Double Zero plans tend to be essentially conservative, but that sufficiently tight Military Standard 105D plans can be selected to achieve comparable performance in all ways.     

A backward recursive technique for optimal sequential sampling plans

This paper presents a procedure akin to dynamic programming for designing optimal acceptance sampling plans for item-by-item inspection. Using a Bayesian procedure, a prior distribution is specified, and a suitable cost model is employed depicting the cost of sampling, accepting or rejecting the lot. An algorithm is supplied which is digital computer oriented.     

Qmp/USP: A modern alternative to MIL-STD-105D

The Quality Measurement Plan (QMP) and the Universal Sampling Plan (USP) are the data analysis and sampling plans for the AT&T Technologies quality audit. This article describes QMP/USP, an acceptance sampling plan based on QMP and USP principles. QMPIUSP is a complete acceptance sampling system. It combines the elements of classical rectification inspection plans with those of MIL-STD-IOSD. There is no switching between plans, no tables of numbers to look through, and no discontinue state. QMP/USP is a computerized, self-contained system that features:

• Acceptance decisions based on the QMP Bayes empirical Bayes analysis of current and past sampling result
• Sample size selection based on USP, i.e., lot size, AQL, a cost ratio, the QMP analysis, and a budget constraint
• Guaranteed AOQ
• A complete statistical analysis of the quality process.

In this article, we describe the operation of QMP/USP and compare its performance with that of MIL-STD-IOSD. The comparison is made under many different quality environments with many metrics. Our results show that QMP/USP and MIL/STD/IOSD perform similarly for the environments where quality could be described as “in control”; and that QMPlUSP is superior in the environments where quality is “out of control”.