编队防空作战模型——目标威判与目标分配

根据编队的结构特点和决策特性,本文首先讨论了编队目标威胁判断的指标及其计算,进而建立了编队目标威胁度计算模型。接着,本文讨论了编队的目标分配问题,建立了两层的目标分配模型,它既考虑编队的整体利益,又顾及每舰具体情况,通过指挥员实现编队目标的满意分配。     

防空导弹武器生存能力的综合量化评估

结合防空导弹武器的实际情况 ,给出了影响其生存能力的指标体系 ,提出并建立了防空导弹武器生存能力的综合量化评估模型。利用AHP与Delphi相结合的方法对指标的权重进行确定 ,在一定程度上克服了专家赋权时的主观因素。最后 ,通过实例表明 ,利用该模型进行评估切实有效     

基于场景图形管理的三维空中态势引擎设计与实现

本文从传统空中信息指挥系统对三维显示的需求出发,以开源图形开发库OpenSceneGraph作为底层渲染引擎,结合OSG的场景图形管理技术和面向对象设计思想,给出了一副大规模空中态势场景的逻辑视图、场景树视图和类视图。以态势场景的构建和管理为核心,设计了一种适合实时显示大规模空中作战态势的三维显示引擎。该引擎实现了大规模地形建模、大规模航迹实时显示、探测器遮蔽算法、多样化视点等关键技术。利用该引擎二次开发的几种三维模块已经运用在实际工程项目中,该引擎具有高效率、跨平台、易集成、易扩展等优势。     

基于BP神经网络的防空预警雷达阵地选址决策方法

防空预警雷达阵地选址的优劣直接影响到雷达本身及防空武器作战效能的发挥。为了在雷达阵地选址中快速处理繁多的数据和进行定量分析,减少人为主观因素,给出了防空预警雷达阵地选址决策指标体系,并构建了基于BP神经网络的防空预警雷达阵地选址决策模型。最后通过实例验证了该模型对优选防空预警雷达阵地选址具有可行性和实用性。     

基于CEC的舰空导弹协同制导仿真研究

针对组建基于CEC的舰空导弹协同制导仿真系统,研究了基于CEC的舰空导弹协同制导仿真的CEC结构、信息流程,分析了CEC协同制导模块的协同管理、协同控制和交接导引功能需求,设计了仿真系统的内部逻辑结构和各构成模块。最后,仿真实现了该系统,对协同制导技术进行了验证。仿真结果表明,基于CEC的协同制导技术是可行的。     

An air cavity method for increasing the underwater acoustic targets strength of corner reflector

In order to improve the underwater acoustic target strength of corner reflectors, according to the principle of acoustic impedance mismatch of the boundary layer, the method of using air cavity to increase the underwater acoustic target strength of corner reflectors is proposed. The acoustic reflection coefficients of underwater air layer and single layer metal sheet are calculated and compared. The results show that the reflection coefficient of single layer metal sheet is greatly affected by frequency and incidence angle, and the reflection coefficient of air layer in water is large and little affected by frequency and incidence angle. On this basis, a new kind of airfilled cavity corner reflector is designed. The acoustic scattering characteristics of underwater airfilled cavity corner reflector are calculated cumulatively, and the results are compared with the monolayer metal sheet corner reflector. The simulation results show that the acoustic reflection effect of the airfilled cavity corner reflector is better. In order to verify the correctness of the method, the test was carried out in the silencing tank. The experimental results show that the simulation results are in good agreement with the experimental results, and the airfilled cavity can improve on acoustic reflection performance of the underwater corner reflector.     

Sharing security in an era of international cooperation: unmanned aerial vehicles and the United States’ Air Force

The United States’ Air Force (USAF) has developed and used unmanned aerial vehicle (UAV) technology to monitor and assassinate dangerous terrorists in Afghanistan, Iraq, Libya, Pakistan, Somalia, Syria, and Yemen. Currently, there are few countries that possess armed UAV and since the US created much of this technology, the USAF is usually part of the training that automatically accompanies the purchase of its UAVs. The research question this article attempts to answer is, “What is the extent of the United States’ Air Force assistance in the training and proliferation of UAV technology to foreign militaries?”     

制导炸弹--一种重要的空袭兵器和应对措施

根据越南战争、海湾战争和科索沃战争的战例,阐述了制导炸弹的主要战术技术特点,认为制导炸弹是未来空袭作战重要兵器,是中低空中近程地(舰)空导弹的重要目标,拦截制导炸弹是地(舰)空导弹应该着力研究的问题.论证了中低空中近程地(舰)空导弹拦截制导炸弹的可行性,并提出了应开展的专项技术研究课题.     

超视距雷达及其防空应用

从分析超视距雷达在对抗隐身目标、低空超低空目标、反辐射导弹和电子干扰时的优势出发 ,阐述超视距雷达在现代防空体系中所发挥的独特作用和世界超视距雷达的发展状况 ,最后对超视距雷达的发展前途作了预测。     

General Dostum and the Mazar i Sharif Campaign: new light on the role of Northern Alliance warlords in Operation Enduring Freedom

This report sheds new light on the CIA and US Special Forces' covert campaign alongside Afghan Northern Alliance leader General Dostum's horse-mounted Uzbeks during 2001's Operation Enduring Freedom. In 2003 and 2005 the author traveled over the Hindu Kush Mountains to the plains of Northern Afghanistan and lived with the legendary Northern Alliance opposition leader General Dostum. His aim was to recreate Dostum's campaign alongside the CIA and Special Forces to seize the holy city of Mazar i Sharif from the Taliban in November 2001. Based on interviews with Dostum and his Uzbek commanders, this article recreates this proxy offensive that saw the Northern Alliance opposition break out of the mountains, seize this shrine town and bring the Taliban house of cards falling down in a matter of weeks. Up until now the indigenous Afghan Uzbeks, who played a crucial role as a ‘boots on the ground’ fighting force for Centcom, have been cast as a mere backdrop for American heroics. Now their side of the story and their links to the mysterious shrine of Mazar i Sharif are for the first time revealed.