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针对三轴转台实验测量数据的处理问题,本文提出了基于第二代提升格式的小波滤波方法。该方法采用多项式拟合进行预测,对含有噪声的数据进行数字滤波。三轴转台试验仿真结果表明该方法应用方便且去噪声效果好,具有广泛的去噪应用前景。 相似文献
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为解决船载雷达在海上动态情况下雷达光轴与机械轴之间的偏差无法准确标校的问题,提出了采用标校电视反向法瞄船桅光标,在海上动态条件下标校雷达光机偏差的新方法,并分析了该方法的可能误差源,得出改正角误差是反向法光机偏差标校的最大误差源,给出了减少或避免改正角误差的三个解决方法,即智能选择法﹑相对比较法和最小二乘法,利用相对比较法对反向法光机偏差标校数据进行误差修正,标校精度优于10″。试验结果表明,该方法解决了近距离改正角误差较大的技术难题,提高了标校精度,且该方法操作性强,在船载雷达上有较高的实用价值。 相似文献
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本文分析了传统方法在确定销售员绩效提成率的不足,从复杂系统理论的角度,探索研究销售员最优化的绩效提成率,通过分析确定销售系统的边界及其关键变量,利用系统动力学的建模方法建立了销售员绩效提成率模型,对模型进行敏感性和现实一致性测试,并使用Vensim软件进行模拟仿真,最后根据仿真结果分析得出动态较优的销售员绩效提成率。 相似文献
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为了检验天线伺服反馈源系统的性能和状态,要对角跟踪信号进
行动态模拟。根据天线方向图中角度偏移与和差信号幅度的对应关系,通过控制和差信号幅
度从而改变角度偏移,可以对角跟踪性能进行动态模拟。介绍了角度模拟在工程中的实现方
法,分析了影响模拟精度的因素。实际工程应用验证了该方法的有效性。 相似文献
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Optimization of an agent-based simulation (ABS) bears specific challenges. It is demonstrated in this paper that mainstream simulation-based optimization (SBO) approaches often do not perform well in such a setting, sometimes hardly outperforming a mere random search. Two new algorithms for SBO which combine superior solution quality with high resource efficiency and reliability for such problems are presented: an evolutionary algorithm called “neighbourhood elite selection” (NELS) with a specific selection mechanism which prevents premature clustering, and a hybrid algorithm which combines NELS with the popular best-in-class algorithm Simultaneous Perturbation Stochastic Approximation (SPSA). Those two algorithms are designed to perform well for problems which show typical properties of an agent-based simulation, a field that has largely been neglected so far, but should structurally also be universally applicable for other simulation-based optimization problems as well. In contrast to present literature, specific emphasis lies on the dynamic control of how many replications of the simulation are required for each solution brought up during the optimization run in order to make efficient use of the scarce simulation resources. The algorithms are benchmarked against the academic best-in-class optimization algorithm SPSA. A sketch of practical case studies is provided, showing how the optimization of an ABS can be used to help solve business decision problems like price optimization for a mobile phone operator. 相似文献
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Todd Feldman 《Journal of Economics and Business》2011,63(5):431
An agent-based financial market model is used to simulate the effects of financial regulation to reduce financial leverage. Results suggest that regulating leverage using margin calls can lead to less frequent financial crises per century, however, it creates harder hit financial crises than without regulation. In addition, regulation where the central authority tries to prick bubbles also leads to less frequent financial crises, but, creates greater volatility. Lastly, I find that leverage regulation where agent’s ability to borrow is not dependent on price produces less frequent crises and less volatility than the other regimes. 相似文献
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针对联合战术信息分发系统(JTIDS)物理层传输波形建立了MATLAB仿真模型,并对其抗白
噪声干扰、单频或阻塞式干扰,以及组网的性能进行了仿真和分析,为JTIDS系统抗干扰技
术的研究提供参考。 相似文献
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天线隔离度是机载电子系统实现电磁兼容预测的重要参数。根据
反应积分原理,提出采用孤立天线远场方向图来替代实际环境中天线的办法,简化分析模型
,在保证分析精度的基础上,提高计算效率,从而高效完成电大尺寸环境中天线隔离度的仿
真分析。通过在自由空间情况下进行测试,验证了仿真结果的准确性。 相似文献
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通过对单脉冲天线方向图数学模型的研究,提出了一种角度跟踪模拟方法。采用信标
和数控衰减器组合的方式,结合VxWorks操作系统成功实现了天线主、副瓣信号的模拟,工
程应用情况良好,对当前武器装备仿真模拟训练系统的研制具有重要的参考价值。 相似文献
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This article describes the use, in prototype form, of a distributed system for simulating negotiation. Participants are provided with a common initial model of a situation, in this case an industrial relations dispute. They then communicate with each other via e-mail before each side commits itself to a particular choice of strategy. The system is considered both as a means of investigating conflict behavior in general (including possible use as a training device) and as a means of testing specific hypotheses about emotion and preference change. 相似文献