Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

85 lines (66 sloc) 2.469 kb
# This file is executed by __init__.py.
"""
Discrete Fourier transform algorithms
Modules
=======
.. autosummary::
:toctree: generated/
basic - Basic discrete Fourier transform operators
convolve - Convolution functions
helper - Helper functions, frequency shifts and sample frequencies
pseudo_diffs - Differential and pseudo-differential operators
realtransforms - Real spectrum tranforms (DCT, DST, MDCT)
Functions
=========
Fast Fourier Transforms (FFTs)
------------------------------
.. autosummary::
:toctree: generated/
fft - Fast (discrete) Fourier Transform (FFT)
ifft - Inverse FFT
fft2 - Two dimensional FFT
ifft2 - Two dimensional inverse FFT
fftn - n-dimensional FFT
ifftn - n-dimensional inverse FFT
rfft - FFT of strictly real-valued sequence
irfft - Inverse of rfft
dct - Discrete cosine transform
idct - Inverse discrete cosine transform
Differential and pseudo-differential operators
----------------------------------------------
.. autosummary::
:toctree: generated/
diff - Differentiation and integration of periodic sequences
tilbert - Tilbert transform: cs_diff(x,h,h)
itilbert - Inverse Tilbert transform: sc_diff(x,h,h)
hilbert - Hilbert transform: cs_diff(x,inf,inf)
ihilbert - Inverse Hilbert transform: sc_diff(x,inf,inf)
cs_diff - cosh/sinh pseudo-derivative of periodic sequences
sc_diff - sinh/cosh pseudo-derivative of periodic sequences
ss_diff - sinh/sinh pseudo-derivative of periodic sequences
cc_diff - cosh/cosh pseudo-derivative of periodic sequences
shift - Shift periodic sequences
Helper functions
----------------
.. autosummary::
:toctree: generated/
fftshift - Shift the zero-frequency component to the center of the spectrum
ifftshift - The inverse of `fftshift`
fftfreq - Return the Discrete Fourier Transform sample frequencies
rfftfreq - DFT sample frequencies (for usage with rfft, irfft)
"""
__all__ = ['fft','ifft','fftn','ifftn','rfft','irfft',
'fft2','ifft2',
'diff',
'tilbert','itilbert','hilbert','ihilbert',
'sc_diff','cs_diff','cc_diff','ss_diff',
'shift',
'rfftfreq'
]
if __doc__:
__doc_title__ = __doc__.lstrip().split('\n',1)[0]
else:
__doc_title__ = None
postpone_import = 1
global_symbols = ['fft','fftn','fft2','ifft','ifft2','ifftn',
'fftshift','ifftshift','fftfreq']
Jump to Line
Something went wrong with that request. Please try again.