⭐ 欢迎来到虫虫下载站! | 📦 资源下载 📁 资源专辑 ℹ️ 关于我们
⭐ 虫虫下载站

📄 margtfr.tex

📁 时频分析的工具包
💻 TEX
字号:
% 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{margtfr}\hspace*{-1.6cm}{\Large \bf margtfr}\vspace*{-.4cm}\hspace*{-1.6cm}\rule[0in]{16.5cm}{.02cm}\vspace*{.2cm}{\bf \large \fontfamily{cmss}\selectfont Purpose}\\\hspace*{1.5cm}\begin{minipage}[t]{13.5cm}Marginals and energy of a time-frequency representation.\end{minipage}\vspace*{.2cm}{\bf \large \fontfamily{cmss}\selectfont Synopsis}\\\hspace*{1.5cm}\begin{minipage}[t]{13.5cm}\begin{verbatim}[margt,margf,E] = margtfr(tfr)[margt,margf,E] = margtfr(tfr,t)[margt,margf,E] = margtfr(tfr,t,f)\end{verbatim}\end{minipage}\vspace*{.3cm}{\bf \large \fontfamily{cmss}\selectfont Description}\\\hspace*{1.5cm}\begin{minipage}[t]{13.5cm}        {\ty margtfr} calculates the time and frequency marginals and the        energy of a time-frequency representation. The definitions used for        the computation are the following\,:\begin{eqnarray*}m_f(t)=\int_{-\infty}^{+\infty} \mbox{tfr}(t,f)\ df && \mbox{\it timemarginal}\\ m_t(f)=\int_{-\infty}^{+\infty} \mbox{tfr}(t,f)\ dt && \mbox{\it frequencymarginal}\\E= \int_{-\infty}^{+\infty}\int_{-\infty}^{+\infty} \mbox{tfr}(t,f)\ df\ dt && \mbox{\it energy}\end{eqnarray*} \hspace*{-.5cm}\begin{tabular*}{14cm}{p{1.5cm} p{8.5cm} c}Name & Description & Default value\\\hline        {\ty tfr} & time-frequency representation {\ty (M,N)}\\        {\ty t}   & vector containing the time samples in sec.                & {\ty (1:N)}\\        {\ty f}   & vector containing the frequency samples in Hz, not               necessary uniformly sampled & {\ty (1:M)}\\ \hline {\ty margt} & time marginal\\        {\ty margf} & frequency marginal\\        {\ty E}     & energy of {\ty tfr}\\\hline\end{tabular*}\end{minipage}\vspace*{.5cm}{\bf \large \fontfamily{cmss}\selectfont Example}\vspace*{-.1cm}\begin{verbatim}         S=amgauss(128).*fmlin(128);          [tfr,t,f]=tfrscalo(S,1:128,8,.05,.45,128,1);         [margt,margf,E] = margtfr(tfr);          subplot(211); plot(t,margt);          subplot(212); plot(f,margf);\end{verbatim}\vspace*{.3cm}{\bf \large \fontfamily{cmss}\selectfont See Also}\\\hspace*{1.5cm}\begin{minipage}[t]{13.5cm}\begin{verbatim}momttfr, momftfr.\end{verbatim}\end{minipage}

⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -