Numerical stability of nonequispaced fast Fourier transforms
Numerical stability of nonequispaced fast Fourier transforms
复制标题
非等距快速傅立叶变换的数值稳定性
DOI:
10.1016/j.cam.2007.12.025
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发表时间:
2008
影响因子:
2.4
通讯作者:
M. Tasche
中科院分区:
文献类型:
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作者:
D. Potts;M. Tasche
This paper presents some new results on numerical stability for multivariate fast Fourier transform of nonequispaced data (NFFT). In contrast to fast Fourier transform (of equispaced data), the NFFT is an approximate algorithm. In a worst case study, we show that both approximation error and roundoff error have a strong influence on the numerical stability of NFFT. Numerical tests confirm the theoretical estimates of numerical stability.
影响因子:
2.1
作者:
通讯作者:
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