inspiration
发表于 2025-3-25 03:27:34
https://doi.org/10.1007/978-3-030-53690-9gral pair. Whereas Fourier . analysis is largely concerned with functions which are treated as being periodic, the Fourier . provides an instrument for the analysis of non-periodic functions. Applications range from the processing of signals in many contexts (engineering, cardiology, speech wave-for
needle
发表于 2025-3-25 10:27:35
http://reply.papertrans.cn/29/2812/281175/281175_22.png
BIBLE
发表于 2025-3-25 13:33:52
http://reply.papertrans.cn/29/2812/281175/281175_23.png
啜泣
发表于 2025-3-25 16:07:46
http://reply.papertrans.cn/29/2812/281175/281175_24.png
Cervical-Spine
发表于 2025-3-25 23:24:11
Fourier series, integral theorem, and transforms: a review, a spatial dimension, rather than time. It is often the case that when examining either signals or the behaviour of a system, the use of harmonic analysis and transform methods provides valuable information. An obvious example is provided if we consider vibrations — which might be positively unwelco
OUTRE
发表于 2025-3-26 04:06:01
http://reply.papertrans.cn/29/2812/281175/281175_26.png
Dendritic-Cells
发表于 2025-3-26 05:31:37
http://reply.papertrans.cn/29/2812/281175/281175_27.png
atrophy
发表于 2025-3-26 11:31:27
Simplification and factorization of the discrete Fourier transform matrix,ial factors as far as possible. In matrix form, we can write . where . is an . x . matrix. Since the elements of . are exponentials, there are no zero elements whatsoever. Unless some signal values are zero, direct computation means that we have to evaluate . sums, each of . terms, and in Section 5.
Circumscribe
发表于 2025-3-26 13:20:13
7楼
Magnificent
发表于 2025-3-26 19:43:31
7楼