DADiSP / FFTXL
FFTXL FFT Acceleration Module
FFTXL automatically accelerates the computation of the FFT and IFFT
functions. In addition, custom or built-in routines that make use
of the FFT experience significant speed improvements. Below is a
partial list of routines provided by DADiSP that benefit directly
from the FFTXL Module. In addition, many of the functions provided by the
DADiSP/Filters and
DADiSP/AdvDSP modules also benefit
from the speed optimizations offered by FFTXL.
FFT Based Functions
| cceps |
Complex cepstrum |
| dct |
Discrete cosine transform |
| dct2 |
2D Discrete cosine transform |
| decilp |
Bandlimited decimation |
| facorr |
Auto-correlation function |
| facov |
Auto-covariance function |
| fcirconv |
Fast circular convolution |
| fconv |
Fast convolution |
| fdeconv |
Fast deconvolution |
| fft |
Fast Fourier Transform |
| fft2 |
2D Fast Fourier Transform |
| finteg |
Frequency domain integration |
| firsamp |
Frequency sampling filter design |
| fpadfilt |
Filtering with end padding |
| fxcorr |
Cross-correlation function |
| fxcov |
Cross-covariance function |
| fzinterp |
Interpolation by FFT zero insertion |
| grpdelay |
Group delay |
| hilb |
Hilbert transform |
| idct |
Inverse discrete cosine transform |
| idct2 |
2D Inverse discrete cosine transform |
| ifft |
Inverse Fast Fourier Transform |
| ifft2 |
2D Inverse Fast Fourier Transform |
| invpsd |
PSD to time series |
| nfft |
Zero pad or time aliased FFT |
| npsd |
Zero pad or time aliased PSD |
| nspectrum |
Zero pad or time aliased spectrum |
| powspec |
Power spectrum |
| psd |
Power spectral density |
| specgram |
Joint time-frequency spectum |
| sfreq |
S transform evaluation |
| spectrum |
Normalized FFT magnitude |
| rceps |
Real cepstrum |
| zfreq |
Z transform evaluation |
Full Product Description