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一种反弹道导弹用瞄准战斗部的引战能力分析 被引量:8
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作者 庄志洪 王宏波 张清泰 《探测与控制学报》 CSCD 北大核心 2002年第3期1-4,共4页
首先简要讨论了瞄准战斗部的原理和推导了最佳起爆距离公式 ;其次 ,从毁伤效率角度描述了随机破片分布战斗部的最佳扩散半径的确定方法 ;最后 。
关键词 引战能力 瞄准斗部 反弹道导弹 最佳起爆距离 毁伤概率 拦截导弹
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EXCHANGE RATE FORECASTING WITH OPTIMUM SINGULAR SPECTRUM ANALYSIS 被引量:2
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作者 GHODSI Mansi YARMOHAMMADI Masoud 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2014年第1期47-55,共9页
Forecasting exchange rate is undoubtedly an attractive and challenging issue that has been of interest in different domains for many years. The singular spectrum analysis (SSA) technique has been used as a promising... Forecasting exchange rate is undoubtedly an attractive and challenging issue that has been of interest in different domains for many years. The singular spectrum analysis (SSA) technique has been used as a promising technique for time series forecasting including exchange rate series. The SSA technique is based upon two main choices: Window length, L, and the number of singular values, r. These values are very important for the reconstruction stage and forecasting purposes. Here the authors consider an optimum version of the SSA technique for forecasting exchange rates. The forecasting performances of the SSA technique for one-step-ahead forecast of six exchange rate series are used to find the best L and r. 展开更多
关键词 Exchange rate forecasting OPTIMAL singular spectrum analysis singular value windowlength.
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