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姜焕成 《信息安全与通信保密》1985,(2)
话音保密是保密通信领域的一个重要组成部分。由于话音保密机能满足战时通信的基本要求,能提供相互实时的保密通信,使用方便,便于战场指挥员直接下达命令,也便于下级指战员及时了解上级意图,把战况迅述上报;同时也有助于辨别发话人,以免受其他人欺骗,这些是加密电报与之不能相比的优点,所以各国军队对话音保密装备也 相似文献
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本文首先从海湾战争中C~3I系统的层次结构谈起,进而论述了交战双方C~3I系统的成功经验与存在问题,并且重点研究了战后外军C~3I的发展动态、设备改进、政策调整等各方面情况。 相似文献
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本文针对某组合壳体中下壳体装配后圆跳动超差问题进行系统分析,查找出影响装配精度的主要因素,并针对具体问题进行工艺改进。实践证明,改进后的加工工艺能够满足产品设计要求,解决了靶试中产品地面密集度不合的问题,提高成品率,降低生产成本。 相似文献
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本文首先从海湾战争中C^3I系统的层次结构谈起,进而论述了交战双方C^3I系统的成功经验与存在问题,并且重点研究了战后外军C^3I的发展动态,设备改进,政策调整等各方面情况。 相似文献
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Large caliber artillery can limit the enemy's movement to the maximum range at the least cost. It is a very critical fire suppression weapon on the battlefield. However, due to its harsh working environment, large caliber artillery performs very unstable in missions. Based on the research project of the health management system of large caliber artillery, while monitoring and recording the working status of large caliber artillery in real time, this paper proposes a design idea of failure prediction and analysis of large caliber artillery based on deep learning by combining expert analysis and other health ma nagement methods. The unsupervised and efficient feature extraction capabilities of the deep belief network and the supervised data classification capabilities of the multi layer perceptron are adopted to establish a fault prediction deep learning model, in order to realize the prediction of the failure state of large caliber artillery and provide technical support for the pre maintenance of large caliber artillery, thereby improving the reliability of large caliber artillery. 相似文献