基于富里哀变换的带限信号外推算法  

An Extrapolation Algorithm for Band-Limited Signals Based on Fourier Transform

作　　者：王思雄[1] 陈衍仪[1] 

机构地区：[1]中国科学院广州电子技术研究听,广州510070

出　　处：《电子学报》1992年第12期75-78,共4页Acta Electronica Sinica

基　　金：国家自然科学基金

摘　　要：本文提出一种直接基于富里哀变换的带限信号外推新算法: FFT迭代算法。它在外推性能和谱估值方面比以往的方法好。由于采用了FFT和收敛加速因子,它是一种实用的算法。数值例子表明,对有噪声数据而言,FFT迭代算法是一种有效的外推算法。A new extrapolation algorithm for band-limited signals is proposed directly based on Fou-rier Transform. The iterative FFT algorithm can provide better extrapolation performance and more ac-curate spectral estimates than other developed algorithms for the band-limited signals with a smooth spec-trum. Since the powerful FFT technique and the convergence accelerating factor are used, the iterative FFT algorithm is more practical in the numerical implementation of the algorithm. The numerical exa-mples have shown that the iterative FFT algorithm is an efficient extrapolation algorithm for the noisy data.

关 键 词：外推 富里哀变换 带限信号 算法 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]