摘要
通过将带限信号展开为适当的指数型函数的有限和，本文得到了一个新的带限信号一步外推算法。所提出的算法十分简单，仅涉及到一个线性方程组的求解，因而大大降低了计算负担．文中就几个算例进行了模拟考察，模拟结果显示了算法的有效性．文中也探索了初始数据不精确的效应，结果表明，这一效应可采用矩阵逼近方法予以抑制．
Based on approximating the band-limited signal by a finite sum of suitable class of the exponential type functions,a new one-step extrapolation procedure is developed systematically in this paper.The proposed algorithm is very Simple.only involving a System of linear equations with the right hand member being the known initial time-segment data,thus greatly reducing the computational burden.Numerical Simulation is conducted and the results demonstrate the effectiveness of the presented scheme.The effect of inaccuracy of the initial data is also iuvestigated. It has been shown that this effect can be suppressed by employing the matrix approximation method.
出处
《中国计量学院学报》
1994年第1期35-44,共10页
Journal of China Jiliang University
关键词
带限信号
一步外推
矩阵逼近
Band-limited Signal
One-step Extrapolation
Matrix Approximation
