Spectral Analysis Methods for Periodic and Non-Periodic Signals

Autor: Rolf Isermann, Marco Münchhof
Rok vydání: 2010
Předmět:
Zdroj: Identification of Dynamic Systems ISBN: 9783540788782
DOI: 10.1007/978-3-540-78879-9_3
Popis: Calculating the spectrum of a signal is important for many applications. To be able to automatically calculate the spectrum and also treat signals of arbitrary shape, there is a special interest in methods for numerical determination of the Fourier transform. These methods are typically implemented on digital computers, which makes it necessary to sample and store the signal before it is transformed. This brings along special ramifications that are discussed in later sections of this chapter. As the data sequences can be quite long, one is also especially interested in computationally efficient implementations of the Fourier transform on digital computers.
Databáze: OpenAIRE