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.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1992年第12期75-78,共4页
Acta Electronica Sinica
基金
国家自然科学基金
关键词
外推
富里哀变换
带限信号
算法
Extrapolation, Spectral estimates. Signal reconstruction
