分布式系统实时信号级仿真实现方法
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摘要
结合透明计算结构特点,提出一种实现实时信号级仿真系统的方法。该方法将信号生成部分的结构划分为特征提取和信号重构两部分,并将信号重构的硬件部分归为信号接收端,信号发射端的最终输出为信号特征值。所以在各节点间传递的为信号的特征值,信号数据直接在接收端产生,避免了因采样率过大引起传输数据饱和、传输速率慢等问题。通过改变仿真系统中信号发射、接收端功能结构,降低系统各节点间信号传输数据量,提高系统运行速率,从而实现实时信号级仿真。该方法已经逐步应用于战场环境、电子对抗仿真之中,证明了该方法的可行性和有效性。
A realization method of real-time signal level simulation system,combined with structure characteristics of transparence computing,is proposed in this paper. This method divided the signal generation into two parts,feature extraction and signal reconstruction. Signal reconstruction hardware is installed at the signal receiving terminal,therefore the output of signal transmitting terminal are signal characteristic values. It is no longer transmit signal sampling data but characteristic values between each node,and the signal sampling data can be obtained in signal receiving terminal by signal reconstruction. This method can solve the problem of data saturation and the slow transmission speed.By changing the signal emission and receiver function structure of simulation system,the signal transmission of data capacity is reduced among various nodes of the system,and the system operation speed is improved,so the real-time signal level simulation can be realized. The method has been applied to the battlefield environment and electronic warfare simulation,they can show the proposed method is feasible and effective.
A realization method of real-time signal level simulation system,combined with structure characteristics of transparence computing,is proposed in this paper. This method divided the signal generation into two parts,feature extraction and signal reconstruction. Signal reconstruction hardware is installed at the signal receiving terminal,therefore the output of signal transmitting terminal are signal characteristic values. It is no longer transmit signal sampling data but characteristic values between each node,and the signal sampling data can be obtained in signal receiving terminal by signal reconstruction. This method can solve the problem of data saturation and the slow transmission speed.By changing the signal emission and receiver function structure of simulation system,the signal transmission of data capacity is reduced among various nodes of the system,and the system operation speed is improved,so the real-time signal level simulation can be realized. The method has been applied to the battlefield environment and electronic warfare simulation,they can show the proposed method is feasible and effective.
引文
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[14]赵知劲,李淼,詹毅.LSC-DSSS信号长短伪码盲估计[J].信号处理,2016,32(3):268-275.
[15]程呈,高敏,刘晓光,等.解空间定向优化的快速免疫算法研究及其应用[J].控制与决策,2017,32(7):1241-1246.
[2]王象,赵锋,闵涛,等.一种改进的相控阵雷达信号级建模与仿真方法[J].系统仿真学报,2013,25(2):241-245.
[3]徐雷,吴嗣亮,李海.相控阵雷达系统并行仿真[J].北京理工大学学报,2009,25(2):192-193.
[4]张尧学.透明计算:概念、结构和示例[J].电子学报,2004,32(12):169-173.
[5]张达.HLA仿真系统的实时性研究[D].哈尔滨:哈尔滨工业大学,2007.
[6]易亮亮.基于集群的综合孔径辐射计信号级仿真研究[D].武汉:华中科技大学,2012.
[7]LI Q,SHAO C F,ZHAO Y.A robust system for real-time pedestrain detection and tracking[J].Journal of Central South University,2014,21(4):1643-1653.
[8]YIN Y F,LIU B,NI H Y.Real-time embedded software testing method based on extended finite state machine[J].Journal of Systems Engineering and Electronics,2012,21(2):276-285.
[9]徐广斌,张尧学,周悦芝,等.基于虚拟机的透明计算系统设计及实现[J].清华大学学报(自然科学版),2008,10(5):1675-1678.
[10]徐广斌,韦理,周悦芝,等.基于虚拟机的透明计算设备子系统设计及实现[J].计算机应用研究,2008,12(8):2550-2553.
[11]张启,许家栋,王国超,等.基于HLA的电子对抗仿真系统设计[J].计算机仿真,2011,28(1):80-83.
[12]ISMAIL B M,AZZEDDINE S,MOURAD N,et al.Effect of antenna directvity on adaptive modulation on an underground mine gallery[J].Canadian Journal of Electrical and Computer Engineering,2014,37(4):222-227.
[13]骆忠强,朱立东,唐俊林.最小误码率准则盲源分离算法[J].信号处理,2016,32(1):21-27.
[14]赵知劲,李淼,詹毅.LSC-DSSS信号长短伪码盲估计[J].信号处理,2016,32(3):268-275.
[15]程呈,高敏,刘晓光,等.解空间定向优化的快速免疫算法研究及其应用[J].控制与决策,2017,32(7):1241-1246.