基于占有率的信号相位交通状态实时判别模型

在国内交通检测手段的现实背景下,各种道路交通状态判别模型的可靠性和实用性一直不足。因此基于车道战略检测器和战术检测器的时间占有率提出了一种新的实用的相位交通状态判别模型,其中包括检测器的布设,占有率阈值的确定,相位交通状态的判别方法。通过VISSIM4.2仿真实验证明,该模型可以准确地判定符合人们主观判断的相位交通状态,并且可以很好地应用目前普遍采用的检测手段,实用性强。     

水雷磁引信目标识别技术初探

目标识别技术应用于水雷磁引信的关键是目标特征量的提取与分类器的设计。本文提出了舰船目标吨位识别的四维特征向量,设计出完整的二叉树分类器。仿真计算表明,这种特征量的正确识别率在90％以上,为目标识别技术在水雷磁引信中的应用作了有益的探索。     

Design of follow‐up experiments for improving model discrimination and parameter estimation

One goal of experimentation is to identify which design parameters most significantly influence the mean performance of a system. Another goal is to obtain good parameter estimates for a response model that quantifies how the mean performance depends on influential parameters. Most experimental design techniques focus on one goal at a time. This paper proposes a new entropy‐based design criterion for follow‐up experiments that jointly identifies the important parameters and reduces the variance of parameter estimates. We simplify computations for the normal linear model by identifying an approximation that leads to a closed form solution. The criterion is applied to an example from the experimental design literature, to a known model and to a critical care facility simulation experiment. © 2004 Wiley Periodicals, Inc. Naval Research Logistics, 2004     

一种快速检测纹理斑块的方法

提出一种检测纹理图像中的斑块的快速算法。算法利用图像中每个位置的代表块与纹理原型的K -S距离来进行纹理分类。研究了K -S距离的基本性质 ,给出了纹理原型的估计方法和层次快速搜索技术。对合成图像和自然图像的实验结果表明了该方法的有效性     

基于粒子滤波的目标跟踪抗野值算法

运用粒子滤波对目标位置进行跟踪时,测量数据的异常突变点、目标的机动转弯、粒子数量的制约和重要性密度函数的优劣都会导致估计误差较大的野值出现,这将严重影响雷达对目标的跟踪精度。现有的野值剔除方法在目标发生机动时,都存在误剔率较高的问题。针对这个问题,采用莱特准则与机动门限准则相结合的方法,提出了不确定观测点的概念,设计了一种适用于机动目标的抗野值粒子滤波算法。仿真结果表明,该方法能较好地检测和更新野值,降低跟踪误差,提高跟踪精度。     

In Defense of Mercy

ABSTRACT

Though it is legally permissible to kill combatants in war, unless they are rendered hors de combat, the existence of “Naked Soldiers” raises an important moral question: should combatants kill vulnerable enemy combatants or show mercy towards them? Most philosophers who address this question argue that it is morally permissible to kill the Naked Soldier given the extended notion of self-defense during war. They ground their arguments in a form of collectivism. In this article, I use Larry May’s argument. He offers an approach that extends the principle of discrimination that would apply also to combatants. Instead of assuming all combatants are de facto dangerous, this approach would allow for nuance in targeting the enemy and showing mercy when enemy combatants clearly pose no danger, in other words, when they are Naked Soldiers. I defend this view against two criticisms: Noam Zohar’s view of armies as complex collectives and Stephen Deakin’s view that a policy that spares Naked Soldiers would be open to abuse. I argue that it is not only morally suspect to kill Naked Soldiers, but also it is within the spirit of both international laws governing war and the just war tradition to offer mercy whenever possible.     

对装备需求的辨证认识

分析了装备发展的根本原因和装备需求的本质，提出装备需求同时具有客观性和主观性2种性质。阐述r客观与主观装备需求的主要特点和相互关系，以及认清装备需求的本质对装备需求开发乃至装备发展工作的现实意义。提出发挥人的主观能动性，创新装备需求，是实现装备科学发展和扭转装备发展被动局面的最佳途径。