黑体辐射数值反演新方法

应用广义偏离原则对黑体辐射问题进行了反演的研究,给出了正则参数的选择方法,由计算机仿真结果知,该方法计算精度高,有良好的应用前景。     

火箭子母弹抛撒过程测试

子弹撒布特性是火箭子母弹的一项重要技术指标,描述了火箭子母弹地面抛撒过程的测试方案和扩散过程的计算方法,给出了某火箭子母弹的测试结果。     

截尾序贯验后加权检验截尾点的优化设计

选取截尾点是截尾序贯验后加权检验很关键的一步,目前理论上尚无有效的选取方法。本文用优化技术确定截尾点Ｃ,克服了实践中确定停时Ｎ和截尾点Ｃ遇到的计算困难,避免了一般取Ｃ＝１的盲目性,使截尾点Ｃ的选取有了理论根据。优选的截尾点不仅使双方承担的风险之和最小,而且使双方承担的风险值相对合理,易于接受。     

多舰对抗研究

研究了海上军事实战模式抽象出的一追二和一二对抗的两大问题。解决一追二问题的方法共讨论了三种：初始角的平分线航向法、瞬时角的平分线航向法、中点轨迹法。给出了确定性的数学模型、以及选代计算方法。一二对抗问题的结论可以由—一对抗问题的结论经过迭加而得到。而—一对抗问题的解决是以定性微分对策的双边极值原理为基础展开的。     

引信静态试验模拟动态试验研究

研究了用静态试验评价无线电引信质量性能的方法。分析了静态试验项目、样本量的确定,建立了各组件失效与引信失效的对应关系,提出了通过组件的失效信息计算引信失效率的方法。     

雷达抗干扰性能的测量研究

本文提出用得益矩阵对雷达抗干扰性能进行度量,对得益矩阵的建立及其在雷达抗干扰性能度量方面的应用进行了分析,并设计出一套自动测试系统,对雷达抗干扰改善因子进行测量。     

激光测距机的测距可靠性及其现状分析

本文论述了测距可靠性的定义、战术意义和应用概况,分析了测距可靠性的规定条件不明确、试验条件不严格与置信水平比较低的现状。     

基于PC总线的第三代自动测试系统(ATE)

本文从自动测试系统的发展过程,分析了第三代自动测试系统的结构模式,提出了建立在IBM-PC总线基础上的新型实用结构模式,且利用这种模式,组建并实现了鱼雷自动测试系统。     

Design of accelerated life testing plans under multiple stresses

Accelerated life testing (ALT) using multiple stresses is commonly used in practice to resemble the operating stresses at normal operating conditions and obtain failure observations in a much shorter time. However, to date, there is little research into the theory of planning ALT for reliability estimation with multiple stresses. ALT with multiple stresses can result in a large number of stress‐level combinations which presents a challenge for implementation. In this article, we propose an approach for the design of ALT plans with multiple stresses and formulate multistress test plans based on different objectives and practical constraints. We develop a simulated annealing algorithm to efficiently determine the testing plan parameters. We demonstrate the proposed method with examples based on an actual test conducted using three stress types. The obtained optimal test plans are compared with those based on fractional factorial design. © 2013 Wiley Periodicals, Inc. Naval Research Logistics 60: 468–478, 2013     

Directional change‐point detection for process control with multivariate categorical data

Most modern processes involve multiple quality characteristics that are all measured on attribute levels, and their overall quality is determined by these characteristics simultaneously. The characteristic factors usually correlate with each other, making multivariate categorical control techniques a must. We study Phase I analysis of multivariate categorical processes (MCPs) to identify the presence of change‐points in the reference dataset. A directional change‐point detection method based on log‐linear models is proposed. The method exploits directional shift information and integrates MCPs into the unified framework of multivariate binomial and multivariate multinomial distributions. A diagnostic scheme for identifying the change‐point location and the shift direction is also suggested. Numerical simulations are conducted to demonstrate the detection effectiveness and the diagnostic accuracy.© 2013 Wiley Periodicals, Inc. Naval Research Logistics, 2013