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。     

基于FMECA的某型雷达系统故障分析

故障模式、影响及危害性分析 (简称FMECA)是提高系统可靠性的一种有效的工具。在雷达系统故障分析中运用FMECA方法 ,通过计算机辅助程序实现了故障分析的预测分析和定量分析。与传统的故障分析方法相比 ,该方法能够避免分析中的盲目性和主观性 ,可以获得更为准确的分析结果     

Multivariate meta analysis with potentially correlated marketing study results

A univariate meta analysis is often used to summarize various study results on the same research hypothesis concerning an effect of interest. When several marketing studies produce sets of more than one effect, multivariate meta analysis can be conducted. Problems one might have with such a multivariate meta analysis are: (1) Several effects estimated in one model could be correlated to each other but their correlation is seldom published and (2) an estimated effect in one model could be correlated to the corresponding effect in the other model due to similar model specification or the data set partly shared, but their correlation is not known. Situations like (2) happen often in military recruiting studies. We employ a Monte‐Carlo simulation to evaluate how neglecting such potential correlation affects the result of a multivariate meta analysis in terms of Type I, Type II errors, and MSE. Simulation results indicate that such effect is not significant. What matters is rather the size of the variance component due to random error in multivariate effects. © 2000 John Wiley & Sons, Inc. Naval Research Logistics 47: 500–510, 2000.     

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。     

舰载箔条冲淡干扰效果在线评估方法

针对作战应用时电子对抗干扰效果的在线评估问题,以舰载箔条冲淡干扰为例,提出基于我方干扰装备和被保护目标的实际状态和预期状态的差别进行评估。具体思路是综合考虑干扰弹发射延误、是否出现哑弹等作战使用因素对干扰成功概率的影响,结合舰载箔条冲淡干扰的干扰成功概率理论模型,实现干扰效果的在线评估。仿真结果表明,新方法对干扰效果的评估更具有实际应用价值。     

基于效果的装备保障指挥决策与体系控制研究

以探索装备保障的信息化决策与控制方法为目的,从基于效果作战的观点出发,利用概念模型,从OODA环的相互作用、混沌现象和自同步及蜂群效应3个方面,研究了网络中心条件下装备保障指挥决策与体系控制的激励与响应模式,并得出了相关结论,以此为基础提出了装备保障指挥决策与体系控制的3项建议.     

ON RATIONAL CHOICE THEORY AND THE STUDY OF TERRORISM

When rational choice theory is applied to the study of terrorism, it is important that attention be given to the derived principles of constrained utility maximization. Particularly useful is the Slutsky equation, which rigorously analyzes the quantity response in one activity to a price change in another. By directing attention to assumptions and/or information about compensated cross price elasticities, expenditure shares, and income elasticities, the Slutsky equation can provide critical guidance in both theoretical and empirical analysis.     

Defence expenditures and economic growth: The externality effect

In a series of articles published in the Fall 1990 issue of Defence Economics Alexander (1990), Atesoglu and Mueller (1990) and Huang and Mintz (1990) have all specified and empirically estimated defence‐growth models based on a neoclassical production function. We now isolate the externality component in our model, re‐estimate its coefficients using data on the U.S. economy 1952–88 and compare specifications and results with Atesoglu and Mueller (1990) and Alexander (1990).     

正弦波对无线电引信耦合通道及作用机理

现代战场复杂电磁环境严重威胁无线电引信战技性能的发挥.为了提出复杂电磁环境中降低无线电引信意外发火概率的防护对策,在简要介绍了实验装置与方法的基础上,研究了无线电引信的等幅正弦波辐照效应.确定了天线及弹体是造成引信意外发火的主要能量耦合通道,引信意外发火及作用机理是:引信天线及弹体接收正弦波信号,使引信高频电路工作状态发生变化,引信检波电压波动,最终导致引信意外发火.     

陆军信息对抗行动效果评估研究

信息对抗行动是陆军作战的重要行动之一,对陆军作战进程和结局影响重大。通过对信息进攻、信息防御和信息保障等主要内容的定性与定量分析,建立评估指标体系、评估数学模型,得出综合评估结果,为指挥员和指挥机关筹划后续行动提供可靠依据,使效果评估工作更加合理准确。