非线性滤波方法在水下目标跟踪中的应用

在对扩展卡尔曼滤波、不敏卡尔曼滤波和粒子滤波3种非线性滤波方法进行研究的基础上,对粒子滤波算法的重要性密度函数的选取方法进行了研究。结合水下目标的被动跟踪的应用背景,比较了3种滤波算法在水下目标跟踪中的性能差异。结果表明,粒子滤波算法能较好的用于非线性、非高斯条件下的水下目标跟踪。     

舰船损管系统生命力评估

建立了舰船损管系统生命力评估构架,解决了诸如水消防系统这样遍布全舰且元件之间逻辑关系十分复杂的系统损伤概率计算方法,直接使用损伤比例进行综合加权计算,为舰船损管系统设计提供了评估方法.     

射击持续时间对炮兵火力毁伤的影响

针对当前炮兵火力毁伤评估的主要特点,分析射击持续时间对炮兵火力毁伤的影响.讨论了目标毁伤毁伤幅员和火炮发射速度在急袭过程随射击持续时间增加的变化情况,得到了一个随射击持续时间变化的火力毁伤评估模型.该算法较好地满足了当前炮兵火力毁伤评估的精度要求.     

基于损伤树及损伤征兆集的战场损伤定位研究

建立了基于损伤树的知识表示、知识推理模型及损伤树评估框架,利用损伤树各节点的损伤征兆集,进行装备战场损伤定位,较好地利用了装备专家的领域知识,提高了战场损伤评估的准确性和效率。     

利用声光衍射测定甘草稀溶液中超声波的波长与浓度的关系

利用声光衍射测量甘草稀溶液中超声波的波速与浓度的关系，通过对实验原理和数据的分析，挖掘出了较多的数据关联，对干草稀溶液物理特性的声光衍射实验测量，是本文的一个新的尝试。     

反辐射导弹攻击航母毁伤效能分析

针对某型航母建立了基于海平面的舰桥主桅坐标系,近似计算了一处雷达天线密集区各设备在该坐标系中的坐标,建立了某三维相扫描三坐标雷达、某目标捕获雷达、某对海雷达等典型雷达天线的数学模型,根据反辐射导弹战斗部的引爆点位置及破片模型解算了反辐射导弹对密集区典型目标的毁伤效能,以期对反辐射导弹攻击航母提供理论支持.     

基于检扫法的初始水雷密度确定方法

探讨在不掌握敌人布雷信息的情况下确定雷障的初始水雷密度问题.分析了利用检扫法确定雷障初始密度可能出现的情况,给出了相应的计算模型.该模型指出,当发现的水雷数量N>0时,可根据导航精度、漏扫(重叠)宽度及反水雷设备性能来计算;当发现的水雷数量N=0时,从不利于我方的角度出发来估算.这样处理不仅可以根据检扫结果计算雷障的初始密度,而且使计算结果更加可信.     

Global counterinsurgency and US army expansion: the case for recruiting foreign troops

Given the nature of global counterinsurgency operations, the demands of military expansion, and the need for cultural, linguistic, and regional expertise, the United States Army should evaluate the establishment of US-led foreign troop units for its evolving force structure. This article proposes the creation of an American foreign legion based upon the recruitment of US-led, ethnically homogeneous tribal force units to meet the grist mill of counterinsurgency operations. This structured approach would be more beneficial than the current reliance on a de facto American Foreign Legion, represented by private military contractors (PMCs), many of them comprised of foreigners. These PMCs carry a number of oversight, accountability, and legal risks not found in a fully integrated, and US-officered foreign legion. The British Brigade of Gurkhas, the South-West African Police Counter-Insurgency Unit (Koevoet), and the Kit Carson Scouts serve as relevant historical examples where foreign troops were used to supplement national manpower resources.     

Controlled warfare: how directed-energy weapons will enable the US Military to fight effectively in an urban environment while minimizing collateral damage

US military operations are increasingly conducted within urban environments and with these operations come the risk of increasing the number of civilian casualties and infrastructure damage. The use of non-lethal weaponry, such as directed-energy weapons, is one method for minimizing collateral damage. This method enables US military forces to effectively fight within urban environments through force escalation capabilities. Using a series of historical examples and future scenarios for urban warfare, this article highlights deficiencies affecting military capabilities in military urban operations, addresses the consequences of collateral damage, assesses the effectiveness of directed-energy weapons in military urban operations and encourages further funding, research and integration of non-lethal weaponry, such as directed-energy weapons, within the US military.     

BEYOND DECLARATIONS OF INTENT

This essay explores the obligations arising from the United Nations Convention against Transnational Organised Crime, signed in Palermo, Italy at the end of 2000. It also discusses the initiatives required to prepare the legal system and related infrastructure of Zimbabwe for its implementation. Zimbabwe joined more than 120 other countries in signing the Palermo convention, but has not yet ratified it. The ratification would enshrine the latest initiatives to develop effective strategies against transnational organised crime. The Palermo convention makes demands on the laws and institutions of states parties which could enhance their capacity to confront organised crime. Ratification signifies competence to implement the prescribed obligations, which can only occur after introducing suitable domestic laws, and adopting the necessary administrative mechanisms. The required reforms are bound to have certain policy and legislative implications for Zimbabwe. Regional initiatives complementary to the Palermo convention are expected to catalyse positive changes in Zimbabwe's response mechanisms.