档案信息系统中关键信息抗干扰模型仿真
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摘要
针对当前方法检测档案信息系统关键信息干扰特征时由于没有提取关键信息干扰特征,导致干扰检测率不高、通信误码率较高的问题,提出基于连续均值消除算法的档案信息系统中关键信息抗干扰模型。模型在构建档案信息系统中关键信息传输信道模型基础上,采用概率统计法将档案信息系统关键信息通信随机过程中的各随机变量簇相同频率对应频谱幅值组成一个新的序列,构建系统关键信息干扰频谱矩阵,得到系统全时通信时关键信息干扰频谱统计特征,完成干扰特征提取。在此基础上,将系统接收关键信息干扰特征做快速傅里叶变换,并将变换后的关键信息干扰特征功率谱值与预先设定的干扰检测门限值做比对,如果变换后的关键信息功率谱值高于预先设定的干扰检测门限值则认为系统关键信息受到了干扰并将其滤除;相反则认为系统关键信息没有受到干扰。仿真测试结果表明,所提模型提高了档案信息系统中关键信息干扰检测率的同时,降低了通信误码率,具有较好的抗干扰性能。
A key information anti-interference model in the file information system based on continuous mean elimination algorithm is proposed. The interference model is based on the key information transmission channel model in the archive information system. The probability and statistics method is used to form a new sequence of the corresponding frequency spectrum amplitudes of each random variable cluster in the random information process of the archive information system. The key information of the system is constructed to interfere with the spectrum matrix,the statistical characteristics of the key information interference spectrum of the system during full-time communication are obtained,and the interference feature extraction is completed. On this basis,the system receives the key information interference features and performs fast Fourier transform,and the transformed key information interference characteristic power spectrum value is compared with a preset interference detection threshold value. If the converted key information power spectrum value is higher than a preset interference detection threshold value,the system key information is considered to be interfered,and filtered out; on the contrary,the system key information is not interfered. Simulation results show that the proposed model improves the interference detection rate of key information in the file information system,reduces the communication error rate and has better anti-interference performance.
A key information anti-interference model in the file information system based on continuous mean elimination algorithm is proposed. The interference model is based on the key information transmission channel model in the archive information system. The probability and statistics method is used to form a new sequence of the corresponding frequency spectrum amplitudes of each random variable cluster in the random information process of the archive information system. The key information of the system is constructed to interfere with the spectrum matrix,the statistical characteristics of the key information interference spectrum of the system during full-time communication are obtained,and the interference feature extraction is completed. On this basis,the system receives the key information interference features and performs fast Fourier transform,and the transformed key information interference characteristic power spectrum value is compared with a preset interference detection threshold value. If the converted key information power spectrum value is higher than a preset interference detection threshold value,the system key information is considered to be interfered,and filtered out; on the contrary,the system key information is not interfered. Simulation results show that the proposed model improves the interference detection rate of key information in the file information system,reduces the communication error rate and has better anti-interference performance.
引文
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[10] 孔志杰,郝新红,栗苹,等.调频引信谐波时序检测抗干扰方法及实现[J].北京航空航天大学学报,2018,44(3):549-555.
[2] 黄嘉诚,董晶.基于微服务的智能档案服务系统设计与实现[J].电子设计工程,2018,26(2):26-30.
[3] 曾瑞,王英彦,张炜超.地震应急测绘信息智能综合处理技术研究[J].地震工程学报,2018,40(2):176-181.
[4] 朱行涛,刘郁林,栗铁桩.基于循环平稳差异的直扩信号盲提取抗干扰方法[J].电子学报,2017,45(6):1506-1512.
[5] 董玮李小波,黄中瑞,等.多PRI采样联合cICA的抗主瓣欺骗干扰方法[J].信号处理,2016,32(11):1339-1346.
[6] 张彦军,栗苹.改进的全球卫星导航系统阵列抗干扰方法[J].探测与控制学报,2016,38(1):7-12.
[7] 王向军,吕博.空中光电位姿测量系统的抗干扰方法[J].纳米技术与精密工程,2017,15(3):175-180.
[8] 施长军,丁刚,郭莎,等.云爆战斗部二次起爆引信抗干扰方法[J].弹箭与制导学报,2016,36(4):51-54.
[9] 王桂胜,任清华,刘洋,等.基于干扰模型的变换域优选算法研究[J].计算机仿真,2017,34(4):66-71.
[10] 孔志杰,郝新红,栗苹,等.调频引信谐波时序检测抗干扰方法及实现[J].北京航空航天大学学报,2018,44(3):549-555.