移动式C3I系统导航定位问题的建模和仿真

未来战争是高新技术的对抗,我们要立于不败,就必须积极主动,知己知彼,避免被动挨打。为此,发展移动式Ｃ３Ｉ系统势在必行。移动式Ｃ３Ｉ系统的一个关键问题就是系统的导航定位问题的处理。作者立足实际,为移动式Ｃ３Ｉ系统建立了系统的导航定位问题的模型。针对引起系统导航定位的各种误差原因予以分析,建立了误差模型并进行了仿真,最后给出仿真结果     

基于声检测的爆炸冲击场剖面可视化技术

阐述了声发射的检测原理,研究了冲击波作用下物体的声发射特性,并利用声发射的不可逆效应(Kaiser效应),提出了一种基于测试的冲击场层析技术.给出了实现流程图及其若干关键技术,如主副鉴别、前沿鉴别等.实验结果表明该技术有一定的实用性,为冲击波作用下物体内部的位错形成和滑移机制的研究提供了一种手段.最后对下一步要解决的问题进行了说明.     

基于生成模型的人体行为识别

提出了一种基于生成模型的人体行为识别方法。选取关键点轨迹的方向-大小描述符、轨迹形状描述符、外观描述符作为人体行为的特征;为了降低人体行为特征维数,利用信息瓶颈算法进行词表压缩;利用生成模型,结合已标记样本和未标记样本提出了一种人体行为识别的半监督学习方法,解决了行为识别中的小样本问题。在YouTube 数据库、 UCF运动数据库上利用提出的方法与已有的方法进行了对比实验,结果表明该方法具有更高的识别精度。     

Historical and Political Background to the Erosion of the Rule of Law and Human Rights During Sri Lanka’s Civil War and the Way Forward

The Sri Lankan Civil War (1983–2009) is regarded as a violent reflection of deepening divides along political and ethnic lines. During this civil war the Sri Lankan Government and its security forces have been implicated in unlawful killings carried out in a pervasive manner against civilians, whilst at the same time specifically targeting ethnic Tamils, humanitarian workers and journalists. The human rights of all citizens suffered as a result and ultimately led to the weakening of the rule of law. With the end of the civil war, the Sri Lankan Government has made little progress in providing accountability for wartime abuses. Its absence of and reluctance to ensure justice is seen as a logical culmination of decades of impunity. The importance of acknowledging historical behaviour and taking accountability for past violations will be discussed. In an analysis for paving the way to a new democracy in Sri Lanka, the main outcomes of this article are calls for accountability arising out of the government’s actions during the war; an investigation into the present state of human rights, the rule of law and finally; an examination into the political solution going forward to ensure a process of reconciliation and peaceful co-existence.     

基于虚拟人机环境的某指控舱CATIA人机分析

针对因人机工程模块中缺乏中国大陆成年人数字模型而导致CATIA软件在座舱性化设计适用性差的现象,以GJB4856-2003和指控舱结构设计参数需求为依据,建立了中国大陆成年男子P5、P95人体数字模型和指控舱三维模型,通过人体模型对指控舱的虚拟操作,分别评价了驾驶舱的视野域、操作域和舒适度等方面布局工效,得到了各工效布局评价的结果,并提出了改进建议。     

Obligation to prevent (O2P): Proposal for enhanced community approach to genocide prevention in Africa

As empathetic as distant nations may feel about an ongoing or looming catastrophe in a particular region of Africa, they are too far removed from the horror to grasp its gravity and impact. Geographical proximity to the atrocity, and the likelihood of its spreading to their neighbourhoods, make the communities and neighbouring countries in the imploding region the best and most effective first responders to a crisis in their own backyard. A response from ‘communal’ or ‘regional’ groups is, therefore, the most practical measure for preventing human rights violations in Africa from descending into an actual genocide or an intractable genocidal condition. A community approach to preventing genocide and other human rights abuses should serve as the foundation for a new concept of ‘moral pan-Africanism’ on the African continent in the 21^st century. This article makes an argument for this genocide prevention model and new moral concept.     

无先验信息排除无源交叉定位虚假交点的新方法

提出了一种排除无源交叉定位虚假交点的新方法,称为四边形分组法.该方法通过将无源交叉定位产生的四边形进行分组来区分真实交点和虚假交点.这种方法只需要测向信息,不需要任何其他先验信息.该方法无需先验信息.仿真结果表明,该方法是有效的,运算速度快,对水平编队目标群定位精度高.     

基于MGEKF的单站无源定位跟踪算法

单站无源定位跟踪技术具有隐蔽性强、设备简单,系统相对独立等优点,有着广阔的应用前景.为了提高定位精度和收敛速度以满足实时化需求,在现有的基于多普勒变化率的单站无源定位算法的基础上.详细推导了基于MGEKF的定位算法以解决EKF算法的不稳定性,并通过计算机仿真比较了两种算法的性能,结果表明MGEKF定位算法提高了定位精度、收敛速度和稳定度,定位结果能够满足实际需求.     

和谐文化的人性基础

人是社会的人,人的本质是一切社会关系的总和,因而人具有广泛体现其社会本质与发展内涵的多方面的需要。人的需要具有广泛性和无限性的特点,人不仪有物质需要,而且有精神需要。人是文化的存在物,人决定文化,文化反过来又塑造人。马克思认为人的发展的必然趋势是和谐的发展,而和谐发展的人,必须是全面发展和个性丰富高度统一的人,是具有自由个性的人。和谐人性理论是建设和谐文化的基础,建设和谐文化需要和谐人性理论做前提。     

双声纳基阵二维目标联合测向交叉定位算法精度分析

主要对双声纳基阵二维目标联合测向交叉定位算法及精度进行了分析,给出了系统具体的定位公式和误差计算公式,并针对不同基线和不同基线误差、方位误差下目标GDOP的分布情况进行了仿真分析。仿真结果表明,定位误差随基线长度的增加而减小,随基线和方位误差的增大而增大,当基线增大到一定长度时．定位误差最终趋向稳定,达到最小。