stripper
发表于 2025-3-21 17:57:54
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上流社会
发表于 2025-3-21 21:58:06
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松鸡
发表于 2025-3-22 01:30:20
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转折点
发表于 2025-3-22 07:20:15
https://doi.org/10.1007/978-3-0348-6461-9The bandwidth that a signal occupies is an important aspect of its total performance, as important as its error performance. The radiofrequency spectrum is a limited and valuable resource and its use is controlled by international law. It is thus important to consume as little of it as possible.
CAPE
发表于 2025-3-22 10:52:16
Spectral Performance,The bandwidth that a signal occupies is an important aspect of its total performance, as important as its error performance. The radiofrequency spectrum is a limited and valuable resource and its use is controlled by international law. It is thus important to consume as little of it as possible.
Bureaucracy
发表于 2025-3-22 15:16:30
https://doi.org/10.1007/978-3-0348-6461-9he increasingly complex activities of mankind have forced an exponential growth in communication to sustain them, and revolutions in hardware and in our understanding of electrical communication have decimated the cost of communication and completely changed how it occurs. The foremost innovation in
Bureaucracy
发表于 2025-3-22 17:14:05
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Homocystinuria
发表于 2025-3-22 22:48:56
https://doi.org/10.1007/978-3-0348-6461-9d, given a specific SNR. A natural and commonly used criterion of goodness among communication engineers is the symbol error probability, which should be minimized. The ultimate conditions under which error probability may be reduced to zero were set up by Shannon,. and problems of this kind will be
vasculitis
发表于 2025-3-23 03:01:34
https://doi.org/10.1007/978-3-0348-6461-9me if large energy is available, and similarly high energy is not needed for a low error probability if a large bandwidth can be tapped. What is much more difficult is reducing one of these without reducing consumption of the other.
畏缩
发表于 2025-3-23 07:52:35
https://doi.org/10.1007/978-3-0348-6461-9 multi-. schemes and coded phase modulation are not considered, but it is straightforward to generalize the transmitters that we discuss. We will first give some general structures and then discuss the practical implementation aspects of each with a few special cases in mind. More details on this su