木讷
发表于 2025-3-23 13:44:24
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中古
发表于 2025-3-23 16:39:10
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时间等
发表于 2025-3-23 20:14:11
Hilbert Spaces and Orthonormal Systems, applications to integral equations. During the period of 1904–1910, Hilbert published a series of six papers, subsequently collected in his classic book . published in 1912. It contained many general ideas including Hilbert spaces (ℓ. and .), the compact operators, and orthogonality, and had a trem
exophthalmos
发表于 2025-3-23 22:31:44
Hilbert Spaces and Orthonormal Systems, applications to integral equations. During the period of 1904–1910, Hilbert published a series of six papers, subsequently collected in his classic book . published in 1912. It contained many general ideas including Hilbert spaces (ℓ. and .), the compact operators, and orthogonality, and had a trem
tinnitus
发表于 2025-3-24 04:54:03
Fourier Transforms and Their Applications,summability kernels including Cesáro, Fejér, and Gaussian kernels. Several important results including the approximate identity theorem, general Parseval’s relation, and Plancherel theorem are proved. This is followed by the Poisson summation formula, Gibbs’ phenomenon, the Shannon sampling theorem,
定点
发表于 2025-3-24 08:00:49
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表被动
发表于 2025-3-24 11:31:17
The Gabor Transform and Time-Frequency Signal Analysis,g in the time-frequency analysis of signals. The Fourier transform analysis has long been recognized as the great tool for the study of stationary signals and processes where the properties are statistically invariant over time. However, it cannot be used for the frequency analysis thai is local in
ASSAY
发表于 2025-3-24 17:53:09
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原始
发表于 2025-3-24 19:07:58
The Wigner-Ville Distribution and Time-Frequency Signal Analysis,s approach in the last two decades. The basic idea of the method is to develop a joint function of time and frequency, known as a time-frequency distribution, that can describe the energy density of a signal simultaneously in both time and frequency. In principle, the time-frequency distributions ch
GIDDY
发表于 2025-3-25 00:42:26
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