\doxysection{src/cxvec\+\_\+math.c File Reference}
\label{cxvec__math_8c}\index{src/cxvec\_math.c@{src/cxvec\_math.c}}


Osmocom Complex vectors math implementation.  


\doxysubsection*{Functions}
\begin{DoxyCompactItemize}
\item 
struct \textbf{ osmo\+\_\+cxvec} $\ast$ \textbf{ osmo\+\_\+cxvec\+\_\+scale} (const struct \textbf{ osmo\+\_\+cxvec} $\ast$in, float complex scale, struct \textbf{ osmo\+\_\+cxvec} $\ast$out)
\begin{DoxyCompactList}\small\item\em Scale a complex vector (multiply by a constant) \end{DoxyCompactList}\item 
struct \textbf{ osmo\+\_\+cxvec} $\ast$ \textbf{ osmo\+\_\+cxvec\+\_\+rotate} (const struct \textbf{ osmo\+\_\+cxvec} $\ast$in, float rps, struct \textbf{ osmo\+\_\+cxvec} $\ast$out)
\begin{DoxyCompactList}\small\item\em Rotate a complex vector (frequency shift) \end{DoxyCompactList}\item 
struct \textbf{ osmo\+\_\+cxvec} $\ast$ \textbf{ osmo\+\_\+cxvec\+\_\+delay} (const struct \textbf{ osmo\+\_\+cxvec} $\ast$in, float delay, struct \textbf{ osmo\+\_\+cxvec} $\ast$out)
\begin{DoxyCompactList}\small\item\em Fractionally delay a vector while maintaining its length. \end{DoxyCompactList}\item 
struct \textbf{ osmo\+\_\+cxvec} $\ast$ \textbf{ osmo\+\_\+cxvec\+\_\+convolve} (const struct \textbf{ osmo\+\_\+cxvec} $\ast$f, const struct \textbf{ osmo\+\_\+cxvec} $\ast$g, enum \textbf{ osmo\+\_\+cxvec\+\_\+conv\+\_\+type} type, struct \textbf{ osmo\+\_\+cxvec} $\ast$out)
\begin{DoxyCompactList}\small\item\em Convolve two complex vectors. \end{DoxyCompactList}\item 
struct \textbf{ osmo\+\_\+cxvec} $\ast$ \textbf{ osmo\+\_\+cxvec\+\_\+correlate} (const struct \textbf{ osmo\+\_\+cxvec} $\ast$f, const struct \textbf{ osmo\+\_\+cxvec} $\ast$g, int g\+\_\+corr\+\_\+step, struct \textbf{ osmo\+\_\+cxvec} $\ast$out)
\begin{DoxyCompactList}\small\item\em Cross-\/correlate two complex vectors. \end{DoxyCompactList}\item 
float complex \textbf{ osmo\+\_\+cxvec\+\_\+interpolate\+\_\+point} (const struct \textbf{ osmo\+\_\+cxvec} $\ast$cv, float pos)
\begin{DoxyCompactList}\small\item\em Interpolate any fractional position in a vector using sinc filtering. \end{DoxyCompactList}\item 
int \textbf{ osmo\+\_\+cxvec\+\_\+peaks\+\_\+scan} (const struct \textbf{ osmo\+\_\+cxvec} $\ast$cv, int $\ast$peaks\+\_\+idx, int N)
\begin{DoxyCompactList}\small\item\em Find the index of the N highest energy ( $|x|^2$) peaks. \end{DoxyCompactList}\item 
float \textbf{ osmo\+\_\+cxvec\+\_\+peak\+\_\+energy\+\_\+find} (const struct \textbf{ osmo\+\_\+cxvec} $\ast$cv, int win\+\_\+size, enum \textbf{ osmo\+\_\+cxvec\+\_\+peak\+\_\+alg} alg, float complex $\ast$peak\+\_\+val\+\_\+p)
\begin{DoxyCompactList}\small\item\em Find the maximum energy ( $|x|^2$) peak in a sequence. \end{DoxyCompactList}\item 
struct \textbf{ osmo\+\_\+cxvec} $\ast$ \textbf{ osmo\+\_\+cxvec\+\_\+sig\+\_\+normalize} (const struct \textbf{ osmo\+\_\+cxvec} $\ast$sig, int decim, float freq\+\_\+shift, struct \textbf{ osmo\+\_\+cxvec} $\ast$out)
\begin{DoxyCompactList}\small\item\em \textquotesingle{}Normalize\textquotesingle{} an IQ signal and apply decimation/frequency shift \end{DoxyCompactList}\end{DoxyCompactItemize}


\doxysubsection{Detailed Description}
Osmocom Complex vectors math implementation.