离开
发表于 2025-3-27 00:28:52
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离开真充足
发表于 2025-3-27 04:20:54
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Harrowing
发表于 2025-3-27 05:25:10
Properties of Time-Variant Convolutionf a time-invariant system is the response to an input Dirac impulse . If the system is excited by the time-shifted Dirac impulse ., the response . also incorporates a shift without changing its original shape.
SUE
发表于 2025-3-27 12:01:12
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Diatribe
发表于 2025-3-27 17:23:05
Joachim SpeidelDescribes both single input single output (SISO) and wireless multiple input multiple output (MIMO) systems.Offers comprehensive coverage of the theory of time-variant systems.Includes all mathematica
失望昨天
发表于 2025-3-27 19:23:04
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nutrition
发表于 2025-3-28 01:32:11
Statistical Description of Wireless Multipath ChannelIn the following, we are going to describe the time variance of a multipath channel by statistical parameters. We assume a multipath channel with delay spread function . given in (.) and neglect the receiver noise in the following. For the receive signal (.), then holds with (.) and .. .As can be seen, even for a constant transmit signal
GULF
发表于 2025-3-28 05:19:04
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canvass
发表于 2025-3-28 09:59:33
ApplicationsIn the following, we consider some examples to show the impact of the Doppler spread function . of a time-variant system on the output spectrum . for a given input spectrum .. As already pointed out, . is not just limiting the input spectrum in .- and .-direction.
聋子
发表于 2025-3-28 11:08:32
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