Modeling of combined Bayesian networks and cognitive framework for decision-making in C2

The command and control (C2) is a decision-making process based on human cognition, which contains operational, physical, and human characteristics, so it takes on uncertainty and complexity. As a decision support approach, Bayesian networks (BNs) provide a framework in which a decision is made by combining the experts’ knowledge and the specific data. In addition, an expert system represented by human cognitive framework is adopted to express the real-time decision-making process of the decision maker. The combination of the Bayesian decision support and human cognitive framework in the C2 of a specific application field is modeled and executed by colored Petri nets (CPNs), and the consequences of execution manifest such combination can perfectly present the decision-making process in C2.       

一种基于TENA的应急指挥模拟演练平台架构设计

通过分析应急指挥模拟演练平台现状及发展需求,并结合大多数应急指挥案例场景的共性特点,设计提出了一种基于试验与训练使能体系结构(Test and Training Enabling Architecture,TENA)的应急指挥模拟演练平台架构,可多粒度、组件化地扩充灾害事故、承灾主体、上下级联动指挥组织机构、救援力量、...     

Design and implementation of an efficient SDRAM controller for HDTV decoder

A high performance SDRAM controller for HDTV decoder is designed.MB-based (macro block)address mapping,adaptive-precharge and command interleaving are adopted in this controller.MB-based address mapping reduces the precharge operations of the video processing unit in one access;adaptiveprecharge avoids unnecessary precharge operations;while command interleaving inserts the precharge and activate commands of the next access into the command sequence of the current access,thus reduces the no operation(NOP)cycles.Combination of these three schemes effectively improves the SDRAM performance.Compared with precharge-all scheme,adaptive-precharge and command interleaving reduce the SDRAM overhead cycles by 70% and increases SDRAM performance by up to 19.2%in the best case.This controller has been implemented in an AVS SoC and the frequency is 200MHz.     

基于网络中心战的战术信息分发过程模型分析

针对如何有效的在作战平台所构成的网络节点之间进行战术信息分发是"网络中心战"环境下编队协同对地攻击作战需要重点关注的问题,在编队协同对地攻击作战环境给出了一种使信息传输费用最优化的战术信息分发Agent模型,提出了基于指挥控制系统作战态势收益最大化准则的战术信息分发策略,并进行了相应的仿真试验。仿真结果表明基于传输费用最优化的信息分发模型具有较好的可操作性和更强的处理能力。     

空中目标威胁排序的灰色聚类决策方法

空中目标威胁排序是防空射击指挥中的重要环节,针对空中目标威胁排序问题,提同了一种基于灰色定权聚类决策的空中目标威胁排序方法.该方法通过对空中作战目标的分析认识,对目标的威胁因素的特征指标进行挑选,分析特征指标取值变化对目标威胁程度的影响,采取绝对关联度分析,确定特征指标的选取,在不需要精确校正指标数据的情况下.运用灰色关联聚类的思想实现了威胁排序,符合防空作战的实际情景需求.给出了应用该方法的具体步骤,通过示例结果表明灰色聚类决策对空中目标威胁排序具有良好的适用性.     

基于PDA和无线模块的SMS程序设计

本文讨论了基于Windows CE的PDA设备串口通信,通过将PDA串口与一个无线模块相连,实现了将用户所需服务类型信息及手持终端的空间定位信息以SMS的形式发到特殊信息服务中心,并接收信息服务中心返回的SMS.本文着重介绍了SMS程序的具体编程实现.     

基于AT89S52的程控电源设计及其实现

给出一种能够方便的由程序控制的高压电源系统。该系统以AT89S52单片机为核心来实现这种程控电源的方法。在AT89S52单片机的控制下,使工作于电压输出模式的DAC0832能够以减速步进的方式实现升压输出。     

DS18B20在单片机温控系统中的应用

DS18B20新型单总线数字温度传感器集温度测量和A/D转换于一体,直接输出数字量,与单片机接口电路简单。作者介绍了一种基于DS18B20和AT89C2051单片机的温度测量及控制系统的硬件结构及汇编程序设计。     

舰载直升机灯光助降系统软件设计

根据舰载直升机灯光助降系统功能的要求,在硬件设计的基础上提出了软件设计方案,并针对系统中单片机的易干扰性采取了陷阱技术,指令 冗余技术等相应措施。     

智能型制氢电源研究

介绍了一种采用 AT89C5 1单片机和 CAN bus技术的智能制氢电源的新型控制方法 ,重点分析了控制器及主电路的原理和结构