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本文主要研究纵向数据下变系数测量误差模型的估计问题.利用B样条方法逼近模型中未知的变系数,构造关于B样条系数的二次推断函数来处理未知的个体内相关和测量误差,得到变系数的二次推断函数估计,建立估计方法和结果的渐近性质.数值模拟结果显示本文提出的估计方法具有一定的实用价值. 相似文献
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Alternative Ag and SiO2 multilayers are prepared by using radio frequency magnetron sputtering. The Ag particles are found to diffuse toward and mostly accumulate near the surface of the Ag—SiO2 composite film via a rapid thermal treatment. Different shapes of the Ag particles are obtained by changing the thickness of each Ag and SiO2 layer. The response absorption property of the Ag composite film is also investigated. We relate the resonance absorption to the surface level and the Fermi level. To induce the obvious resonance absorption in an Ag composite film, it is necessary to maintain special shapes with sharp edges and wide terraces and to maintain the particle sizes ranging from 0 nm to 100 nm. 相似文献
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针对DSP和FPGA相结合的处理机结构进行了研究,分析了现行SIMD和MIMD结构下的数字信号处理机制的优劣,在此基础上提出了一种实时信号处理的线性流水阵列,通过实例证明了该结构的优越性能。 相似文献
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