altes.tex

时频分析的工具包

% This is part of the TFTB Reference Manual.
% Copyright (C) 1996 CNRS (France) and Rice University (US).
% See the file refguide.tex for copying conditions.


\markright{altes}
\hspace*{-1.6cm}{\Large \bf altes}

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\hspace*{-1.6cm}\rule[0in]{16.5cm}{.02cm}
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{\bf \large \fontfamily{cmss}\selectfont Purpose}\\
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\begin{minipage}[t]{13.5cm}
Altes signal in time domain.
\end{minipage}
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{\bf \large \fontfamily{cmss}\selectfont Synopsis}\\
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\begin{minipage}[t]{13.5cm}
\begin{verbatim}
x = altes(N)
x = altes(N,fmin)
x = altes(N,fmin,fmax)
x = altes(N,fmin,fmax,alpha)
\end{verbatim}
\end{minipage}
\vspace*{.5cm}


{\bf \large \fontfamily{cmss}\selectfont Description}\\
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\begin{minipage}[t]{13.5cm}
        {\ty altes} generates the Altes signal in
        the time domain.\\
 
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\begin{tabular*}{14cm}{p{1.5cm} p{8.5cm} c}
Name & Description & Default value\\
\hline
	{\ty N}&number of points in time&  \\ 
	{\ty fmin}&lower frequency bound (value of the hyperbolic
                instantaneous frequency law at the sample {\ty N}), 
                in normalized frequency&{\ty 0.05}\\
	{\ty fmax}&upper frequency bound (value of the hyperbolic
                instantaneous frequency law at the first sample), 
                in normalized frequency            &{\ty 0.5}\\
        {\ty alpha}&attenuation factor of the envelope & {\ty 300}\\
  \hline {\ty x}&time row vector containing the Altes signal samples\\
\hline
\end{tabular*}

\end{minipage}
\vspace*{1cm}


{\bf \large \fontfamily{cmss}\selectfont Example}\\
\hspace*{1.5cm}
\begin{minipage}[t]{13.5cm}
\begin{verbatim}
         x=altes(128,0.1,0.45); plot(x);
\end{verbatim}
plots an Altes signal of 128 points whose normalized frequency goes from
0.45 down to 0.1.
\end{minipage}
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{\bf \large \fontfamily{cmss}\selectfont See Also}\\
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\begin{minipage}[t]{13.5cm}
\begin{verbatim}
klauder, anasing, anapulse, anastep, doppler.
\end{verbatim}
\end{minipage}