Boldfaced
发表于 2025-3-21 17:19:55
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expire
发表于 2025-3-21 21:41:07
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Yag-Capsulotomy
发表于 2025-3-22 02:36:24
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星星
发表于 2025-3-22 07:44:06
Sampled-Data Signalsntly. In recent years such signals have come to assume great importance because of developments in digital electronics and computing. Since it is not possible to feed continuous data into a digital (as opposed to analogue) computer, any signal or data input must be represented as a set of numerical
放牧
发表于 2025-3-22 12:46:57
Random Signalspectra we calculate for them specify the magnitudes and relative phases of the sinusoidal waves which, if added together, would exactly resynthesise the original waveforms. By contrast, the value of a random waveform or signal is not specified at every instant of time, nor is it possible to predict
Assemble
发表于 2025-3-22 15:32:34
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figure
发表于 2025-3-22 21:00:33
Modulation and Samplingplies the variation or adjustment of a property of one signal, generally referred to as the ‘carrier’, by a second waveform known as the ‘modulating signal’. The modulated carrier contains (at least in principle) complete information about the modulating signal, and may therefore be used as a substi
Femish
发表于 2025-3-22 22:10:03
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DEFT
发表于 2025-3-23 05:17:06
Signal Recovery, Detection and Predictiontracting a signal from random noise: it arises to some extent in almost all communication, measurement and recording situations. Another interesting problem is that of predicting the future of a random signal as accurately as possible. Not surprisingly, we shall find the earlier discussions of rando
无礼回复
发表于 2025-3-23 08:29:26
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