期刊
NUMERICAL ALGORITHMS
卷 61, 期 2, 页码 189-208出版社
SPRINGER
DOI: 10.1007/s11075-012-9596-4
关键词
Matrix Pade approximants; Fraction-free computations; Time series
资金
- National Science Foundation [HRD-1137732, HRD-0734800]
We describe a new method of computing matrix Pad, approximants of series with integer data in an efficient and fraction-free way, by controlling the growth of the size of intermediate coefficients. This algorithm is applied to compute high precision Pad, approximants of matrix-valued generating functions of time series. As an illustration we show that we can successfully recover from noisy equidistant sampling data a joint damped signal of four antenna, even in the presence of background signals.
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