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- W3215675078 abstract "In the digital world, signals are discrete and finite. The Fourier representation of discrete and finite signals is FT convolution of the finite sampling function and the continuous signal. Conventionally, finite sampling is treated as a segment of infinite sampling. Though this approach perfectly solves the difference between finite and infinite sampling, it has caused much trouble for signal processing. Mathematically, there is a kind of sampling between finite and infinite sampling, and we name this kind of sampling as half-infinite sampling. Theoretically, finite sampling can also be treated as a segment of half-infinite sampling. Because we can derive the Fourier representation of discrete and finite signals from half-infinite sampling, the FTs of several half-infinite samplings are studied. The results show that the FT of half-infinite sampling is more concise than that of infinite sampling. A numerical experiment verified the theoretical derivations successfully, during which step sampling was proposed. Besides, several interesting equations were built." @default.
- W3215675078 created "2021-12-06" @default.
- W3215675078 creator A5091163867 @default.
- W3215675078 date "2021-10-20" @default.
- W3215675078 modified "2023-09-25" @default.
- W3215675078 title "Half-infinite sampling and its FT" @default.
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- W3215675078 doi "https://doi.org/10.48550/arxiv.2111.11291" @default.
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