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战术数字信息链“J”系列报文格式分析及应用 总被引:1,自引:0,他引:1
针对战术数字信息链在信息化作战中起到的重要作用及其国外的发展现状,分析了以“J”系列为代表的典型数字信息链报文格式。从报头、报文与报文封装等角度分析了固定格式报文、可变格式(VMF)报文、自由正文报文和往返计时报文4种类型的典型特征及其应用,并提升出其演进策略,指出战术数字信息链格式标准的发展策略对数字信息链应用起到的重要作用。针对我国数字信息链建设现状,提出了从技术上和管理上的建设思路,充分有效发挥后发优势,并最终提高我军战术数字信息链和信息化作战的技能与水平。 相似文献
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An efficient communication key management scheme to mobile ad-hoc networks (MANET) based on the ideas of threshold cryptography is proposed, local-TTP and location-based virtual network infrastructure. The protocol is built upon a combinatorial formulation of the group key management issue. Primary features of the scheme include independently computation group keys by using a hash function and the mapping of nodes for group keys. Also, the proposed scheme scales well and supports dynamic setup and management of arbitrary structures of secure group communication in MANET. 相似文献
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基于脉冲配对时两站间的互测时差值应相等的条件,对应定位基准时间设置脉冲序列,并构造含有时间偏差参量的时差测量方程。通过计算两站间在基准时间与对应脉冲序列的时间之间的时差值,可获得互测时差值的相等点,进而可确定出偏离时间基准位置的脉冲次序的数值,由此直接得到偏离基准的时间值。通过利用此时间偏差值对实测时差值进行修正,就能直接给出固定目标的高重频信号在脉冲配对时的时差测量值。 相似文献
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Protocols for key management are compared and evaluated from the point of view on mobile ad hoe networks (MANET). The issues of fault-tolerance and efficiency of key distribution protocols for group communications in MANET are addressed. Most key distribution protocols existing today are primarily designed for wlre-line networks. These protocols either fail to work as intended or cannot work at all when they are applied to the demanding environment of MANET. Parameters and performance of different protocols are analyzed, and then a fiat is given out, on which new protocols or existing ones are designed and modified, so that they can be robust, scalable and efficient in MANET. 相似文献
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