胖人手艺好
发表于 2025-3-23 12:10:53
Sampling,This final chapter presents another aspect of information theory in Shannon’s works, namely, the . according to which one may only retain samples of a given signal, taken at regularly spaced instants, provided the sampling frequency is at least twice that of the frequencies that “appear” in the signal.
Choreography
发表于 2025-3-23 13:56:02
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Presbycusis
发表于 2025-3-23 21:40:20
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FLAX
发表于 2025-3-24 01:24:27
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condemn
发表于 2025-3-24 02:50:13
Coding,e space as possible, and can we make precise the point to which they can be compressed? This question had already been raised at the beginning of electrical transmission: the issue was to have several telegraphic signals use the same electric line.
教义
发表于 2025-3-24 09:03:58
2038-5714 ates.Includes numerous exercises, with solutions.This book provides an introduction to information theory, focussing on Shannon’s three foundational theorems of 1948–1949. Shannon’s first two theorems, based on the notion of entropy in probability theory, specify the extent to which a message can be
自制
发表于 2025-3-24 10:47:13
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JOG
发表于 2025-3-24 16:20:07
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浪费时间
发表于 2025-3-24 19:19:30
Antoine Chambert-LoirSpot sampling at regular intervals transforms these data into numerically manageable form, replotted in smoothed curves of sequential bed thickness. Beds are bundled into sets about 1 m thick. Power spectra of the Cretaceous data yield three frequency peaks, in the vicinity of 50 cm, 1 m, and in the
AGONY
发表于 2025-3-24 23:37:29
Antoine Chambert-Loirthe field only, if (a) the original sediment had a carbonate/clay ratio on the order of 4 and, under oxygenated conditions, if (b) the thickness of somewhat alternating beds was sufficient (5 to 10 cm) to prevent complete mixing by bioturbation. Simple models demonstrate the effect of fluctuating pr