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出 处:《四川兵工学报》2011年第7期44-47,共4页Journal of Sichuan Ordnance
摘 要:为充分发挥信息化弹药的作战效能,对弹载数据链的功能需求进行分析。基于信息化弹药的作战特点,提出了一种时分多址的数据链方案,给出了相应的时隙结构及时隙分配方案。针对战场图像信息传输问题,使用M atlab/S imu link进行了仿真。结果显示,在典型干扰环境下,扩频增益增加到一定程度后,误码率下降趋缓,因此可以在容许一定误码率的情况下降低扩频增益从而提高数据传输效率。针对信号易被敌方跟踪干扰的问题,提出了慢跳频方案,以提高数据链抗干扰能力。In order to improve efficiency of informatization ammunition,the paper made the analysis of function requirement for shell-board data link.Based on the operation characteristic of informatization ammunition,it proposed a sort of TDMA data link scheme,and gave the corresponding slot time structure and slot time allocation scheme.Aimed at the puzzle of battlefield image transmission,it made the simulation by Matlab / Simulink.The results reveal that the descend of probability of error would trend towards delay under typical disturbance environment after the spread spectrum plus adding to a certain extent,therefore it is allowable to reduce the spread spectrum plus so as to enhance the data transmission efficiency under a certain probability of error.And at the same time,aimed at the puzzle of the signal being easy to be interfered by enemy track,it proposed a slow frequency hopping scheme so as to enhance the anti-jamming performance of data link.
分 类 号:TJ410.89[兵器科学与技术—火炮、自动武器与弹药工程]
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