差分压控振荡器中单粒子瞬变的研究

压控振荡器(VCO)是锁相环(PLL)中对于单粒子瞬变(SET)最为敏感的部件之一.基于180nm体硅CMOS工艺设计了一款经典的对称负载结构差分VCO电路,并利用电流源表征单粒子效应中电荷沉积和收集的过程,模拟了VCO电路的SET响应.模拟和分析表明,SET响应不仅取决于入射能量、振荡频率,还受到轰击时刻的制约,不同轰击时刻产生的最大相位差可以相差300°以上.此外,偏置电路某些结点最为敏感,可以放大SET的影响,导致时钟失效长达7个周期.     

空间飞网发射动力学建模仿真研究与地面试验

空间飞网是近来提出的一个创新的空间系统概念,在空间碎片处理和在轨服务方面具有独特的应用潜力.针对飞网系统的发射过程,利用建模仿真和地面试验两种手段进行了研究,建立了飞网发射的集中质量模型,设计了基于燃气助推质量块的飞网发射地面试验装置,开展了多次飞网发射试验.地面试验结果与模型仿真结果基本吻合,说明所建立的动力学模型可用于空间飞网系统设计.     

同轴均匀消磁线圈对坦克磁场影响效应的数值模拟

通过数值处理和计算机模拟，得出一种排布方式的消磁线圈对坦克磁场的影响效应分布，即当消磁线圈为均匀密排情形时，线圈内部为匀强磁场，方向沿通电线圈的轴向，且与环形电流呈右手螺旋关系；线圈外部为磁偶极子场，该场会随着与线圈中心距离的增大而迅速减小。数值模拟的结果可为封闭型军事装备表层安装消磁线圈提供参考；通过分析消磁线圈附加磁场的特点为装备磁防护理论提供一些支持。     

空中突击效果预测模型研究

从实践需求出发 ,建立了空中突击效果的预测模型 ,旨在对特定目标在某一时刻遭到突击后 ,预测其在任一后续时间点上所产生的突击效果 ,以便为计划人员有效使用战役突击力量提供可靠保证     

基于跟踪精度控制的多传感器管理方法

针对地面机动目标跟踪过程中的多传感器管理问题展开了研究，设计了一种基于跟踪精度控制的多传感器多目标分配方法。首先，在考虑目标与目标之间、目标与传感器之间和传感器与传感器之间等的多种约束条件下运用基于协方差控制的思想建立了多传感器多目标分配问题的优化模型；接着将等价伪量测的异步融合算法与IMM算法结合，计算各目标在不同融合周期的跟踪精度估计值；最后，以目标的跟踪精度需求为出发点，结合蚁群算法的思想，设计了一种求解所建立的多传感器多目标分配问题的优化模型的算法。仿真结果表明：该管理方法能在确保跟踪精度需求的前提下，根据对各目标跟踪任务的重要程度，合理地调度传感器资源。     

Evaluating the Spillover Effects of the Colombian Conflict in Ecuador

The Colombian civil war lasted for nearly six decades with approximately 10 percent of its population being displaced over the same period. The implications of this conflict have transgressed international boundaries. Countries such as Ecuador experienced an exodus of victims as well as an increase in the presence of armed groups, along with the proliferation of illegal businesses. Even though the internal social and economic consequences of the Colombian conflict have been documented in the literature, there is yet to be a study addressing these issues from the perspective of impacted neighboring countries. In this work, we contribute to the literature by evaluating whether the influx of asylum seekers and the increasing presence of armed groups in the bordering provinces of Ecuador have lead to an increase in violence among these provinces. We do not find any link between the arrival of asylum seekers and the incidence of violent crimes in the Ecuadorean bordering provinces. Similarly, our results indicate that despite an increase in the presence of armed groups, these regions did not experience an increase in the homicide rates significantly different from the other provinces. The results are robust to various specifications and econometric techniques.     

无线通信及其干扰的建模与仿真研究

对无线通信及其干扰建模进行了分析和结构设计，重点研究了无线通信的天线、传播损耗、信噪比、误码率、纠错及通信干扰等主要模型，开发了仿真实例并进行了试验。结果表明：无线通信设备的战术技术性能、战场环境因素和通信干扰等对无线通信效果有极大的影响。     

空军地面雷达信息综合技术

空军地面雷达信息综合技术研究是以面向防空作战任务的战场信息共享支持为目标,借助先进的通信体系结构和技术体制,将各级雷达信息有机地集成起来,形成一体化的战场信息共享支撑体系,以提高我军联合指挥控制能力.     

Precision cyber weapon systems: An important component of a responsible national security strategy?

Given the advances made in conventional weapon capabilities, precision should by now be the accepted and expected norm in cyberspace as well. In this article I argue that developing precision cyber weapon systems, to be used during a lawful conflict, can be an important part of a responsible national security strategy to reduce the amount of violence and physical destruction in conflicts. I first describe a precision cyber weapon system in a military context. I then present three compelling rationales for the development of precision cyber weapon systems based on ethical, operational, and financial considerations. To support the position, I address several arguments that have been levied against their development. Thereafter I present several recommendations for a way ahead.     

试论增强思想政治工作的实效牲

思想政治工作是我党我军的政治优势 ,是团结全党和全国各族人民实现党和国家各项任务的中心环节。面对新的形势 ,新的特点 ,如何使思想政治工作更具有实效性 ,是部队思想政治工作面临的重大理论问题和现实问题。