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Mathematics of the Discrete Fourier Transform (DFT)
Julius O. Smith
其他書名
With Audio Applications
出版Julius Smith, 2007
ISBN097456074X9780974560748
URLhttp://books.google.com.hk/books?id=fTOxS9huzHoC&hl=&source=gbs_api
EBookSAMPLE
註釋"The DFT can be understood as a numerical approximation to the Fourier transform. However, the DFT has its own exact Fourier theory, and that is the focus of this book. The DFT is normally encountered as the Fast Fourier Transform (FFT)--a high-speed algorithm for computing the DFT. The FFT is used extensively in a wide range of digital signal processing applications, including spectrum analysis, high-speed convolution (linear filtering), filter banks, signal detection and estimation, system identification, audio compression (such as MPEG-II AAC), spectral modeling sound synthesis, and many others. In this book, certain topics in digital audio signal processing are introduced as example applications of the DFT"--Back cover