DSP applications using C and the TMS320C6X DSK (P6)

Chia sẻ: Khinh Kha Kha | Ngày: | Loại File: PDF | Số trang:34

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DSP applications using C and the TMS320C6X DSK (P6)

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Fast Fourier Transform • • • The fast Fourier transform using radix-2 and radix-4 Decimation or decomposition in frequency and in time Programming examples The fast Fourier transform (FFT) is an efficient algorithm that is used for converting a time-domain signal into an equivalent frequency-domain signal, based on the discrete Fourier transform (DFT). Several real-time programming examples on FFT are included. 6.1 INTRODUCTION The discrete Fourier transform converts a time-domain sequence into an equivalent frequency-domain sequence. The inverse discrete Fourier transform performs the reverse operation and converts a frequency-domain sequence into an equivalent time-domain sequence. The fast Fourier transform (FFT) is a very efficient...

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