miserly
发表于 2025-3-21 19:26:29
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Heart-Attack
发表于 2025-3-21 22:37:00
https://doi.org/10.1007/978-3-658-14239-1etitive in nature and which cannot therefore be represented by Fourier series containing a number of harmonically-related frequencies. Fortunately, however, it is possible to derive frequency spectra for such signals using as a starting point the work we have already done on the Fourier series.
GOUGE
发表于 2025-3-22 01:16:28
,Thesenförmige Zusammenfassung,ignal applied to its input. In other words, it is regarded as an ‘input-output’ device, whose detailed internal construction does not concern us. This is often referred to as the ‘black-box’ approach: it involves us in mathematical descriptions of the overall performance of the signal processor, but
责任
发表于 2025-3-22 06:41:12
https://doi.org/10.1007/978-3-8350-9585-4on. But in spite of these advantages of linear processing, the reader is asked to bear in mind that a variety of useful signal techniques may be achieved by using nonlinear systems and devices, and that the analysis and synthesis of signals and systems by reference to Fourier and Laplace transform t
debase
发表于 2025-3-22 10:44:51
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Keratectomy
发表于 2025-3-22 13:38:52
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Epidural-Space
发表于 2025-3-22 17:17:58
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无可非议
发表于 2025-3-22 23:27:19
Aperiodic Signalsetitive in nature and which cannot therefore be represented by Fourier series containing a number of harmonically-related frequencies. Fortunately, however, it is possible to derive frequency spectra for such signals using as a starting point the work we have already done on the Fourier series.
Radiation
发表于 2025-3-23 03:27:22
Signals and Systemsignal applied to its input. In other words, it is regarded as an ‘input-output’ device, whose detailed internal construction does not concern us. This is often referred to as the ‘black-box’ approach: it involves us in mathematical descriptions of the overall performance of the signal processor, but
Ringworm
发表于 2025-3-23 06:43:30
Postscripton. But in spite of these advantages of linear processing, the reader is asked to bear in mind that a variety of useful signal techniques may be achieved by using nonlinear systems and devices, and that the analysis and synthesis of signals and systems by reference to Fourier and Laplace transform t