folliculitis 发表于 2025-3-23 13:44:56
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https://doi.org/10.1007/978-981-19-6242-4 numbers. Having in mind a physical meaning behind a discrete-time signal, the physical quantity can always be recovered by multiplying the numbers of the sequence by a reference value of this quantity. This is exactly what digital-to-analog converters do. In the following, the input sequence of the唠叨 发表于 2025-3-23 21:11:42
https://doi.org/10.1007/978-981-19-6242-4main of the continuous-time physical signals and the abstract digital world, where signals are represented by sequences of numbers and the behaviour of electrical, mechanical or hydraulic systems is imitated by mathematical algorithms. The sampling theorem is a prerequisite for the pulse code modula浪费物质 发表于 2025-3-23 22:39:31
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https://doi.org/10.1007/978-3-662-59755-2types. While a given frequency response is approximated in case of an IIR filter by a rational fractional transfer function of . with poles and zeros (5.30), the FIR filter is simply characterised by zeros and a polynomial of . (5.2).REP 发表于 2025-3-24 09:46:35
Xin Liu,Xiumin Hong,Yuejuan Pann the case of IIR filters. There are no design tables available with normalised coefficients of prototype filters that could be easily adapted to special design specifications. So each filter design has to pass, in principle, a complete mathematical design procedure. According to the chosen approximNUL 发表于 2025-3-24 13:27:28
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