Mercurial > octave-nkf
view doc/interpreter/signal.txi @ 8828:8463d1a2e544
Doc fixes.
* 2]$$. => 2].$$
* @var{extrapval} => @var{extrapval}.
* call helloworld.oct => called @file{helloworld.oct}
* @itemize => @table @code
* shows. => shows:
* save => @code{save}
* @ref{Breakpoints} => @pxref{Breakpoints}
* add @noindent following example
* which is computed => and compute it
* clarify wording
* remove comma
* good => well
* set => number
* by writing => with the command
* has the option of directly calling => can call
* [-like-] {+of the right size,+}
* solvers => routines
* handle => test for
* add introductory section
* add following
* {+the+} [0..bitmax] => [0,bitmax]
* of the => with
* number => value
* add usual
* Besides when doing comparisons, logical => Logical {+also+}
* array comparison => array, comparisons
* param => parameter
* works very similar => is similar
* strings, => strings
* most simple => simplest
* easier => more easily
* like => as
* called => called,
* clarify wording
* you should simply type => use
* clarify wording
* means => way
* equally => also
* [-way much-] {+way+}
* add with mean value parameter given by the first argument, @var{l}
* add Functions described as @dfn{mapping functions} apply the given
operation to each element when given a matrix argument.
* in this brief introduction => here
* It is worth noticing => Note
* add following
* means => ways
author | Brian Gough <bjg@network-theory.co.uk> |
---|---|
date | Fri, 20 Feb 2009 11:17:01 -0500 |
parents | 7523742aa026 |
children | eb63fbe60fab |
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@c Copyright (C) 1996, 1997, 1999, 2000, 2002, 2004, 2006, 2007 John W. Eaton @c @c This file is part of Octave. @c @c Octave is free software; you can redistribute it and/or modify it @c under the terms of the GNU General Public License as published by the @c Free Software Foundation; either version 3 of the License, or (at @c your option) any later version. @c @c Octave is distributed in the hope that it will be useful, but WITHOUT @c ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or @c FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License @c for more details. @c @c You should have received a copy of the GNU General Public License @c along with Octave; see the file COPYING. If not, see @c <http://www.gnu.org/licenses/>. @node Signal Processing @chapter Signal Processing This chapter describes the signal processing and fast fourier transform functions available in Octave. Fast fourier transforms are computed with the @sc{fftw} or @sc{Fftpack} libraries depending on how Octave is built. @DOCSTRING(detrend) @DOCSTRING(fft) Octave uses the FFTW libraries to perform FFT computations. When Octave starts up and initializes the FFTW libraries, they read a system wide file (on a Unix system, it is typically @file{/etc/fftw/wisdom}) that contains information useful to speed up FFT computations. This information is called the @emph{wisdom}. The system-wide file allows wisdom to be shared between all applications using the FFTW libraries. Use the @code{fftw} function to generate and save wisdom. Using the utilities provided together with the FFTW libraries (@command{fftw-wisdom} on Unix systems), you can even add wisdom generated by Octave to the system-wide wisdom file. @DOCSTRING(fftw) @DOCSTRING(ifft) @DOCSTRING(fft2) @DOCSTRING(ifft2) @DOCSTRING(fftn) @DOCSTRING(ifftn) @DOCSTRING(fftconv) @DOCSTRING(fftfilt) @DOCSTRING(filter) @DOCSTRING(filter2) @DOCSTRING(freqz) @DOCSTRING(freqz_plot) @DOCSTRING(sinc) @DOCSTRING(unwrap) @c FIXME -- someone needs to organize these... @DOCSTRING(arch_fit) @DOCSTRING(arch_rnd) @DOCSTRING(arch_test) @DOCSTRING(arma_rnd) @DOCSTRING(autocor) @DOCSTRING(autocov) @DOCSTRING(autoreg_matrix) @DOCSTRING(bartlett) @DOCSTRING(blackman) @DOCSTRING(diffpara) @DOCSTRING(durbinlevinson) @DOCSTRING(fftshift) @DOCSTRING(ifftshift) @DOCSTRING(fractdiff) @DOCSTRING(hamming) @DOCSTRING(hanning) @DOCSTRING(hurst) @DOCSTRING(pchip) @DOCSTRING(periodogram) @DOCSTRING(rectangle_lw) @DOCSTRING(rectangle_sw) @DOCSTRING(sinetone) @DOCSTRING(sinewave) @DOCSTRING(spectral_adf) @DOCSTRING(spectral_xdf) @DOCSTRING(spencer) @DOCSTRING(stft) @DOCSTRING(synthesis) @DOCSTRING(triangle_lw) @DOCSTRING(triangle_sw) @DOCSTRING(yulewalker)