% vim: set ts=2 sw=2 noet:
\hfill
\begin{subfigure}{.45\linewidth}
\begin{tikzpicture}
	\begin{axis}[
			title = {Channel with ISI},
			width = 6.5cm, height = 6.5cm,
			% ylabel = {Quadrature},
			% xlabel = {In-Phase},
			xlabel near ticks,
			ylabel near ticks,
			grid = major,
			xmin = -5, xmax = 5,
			ymin = -5, ymax = 5,
		]

		\addplot[magenta, only marks] table[x index = 0, y index = 1]
			{figures/data/qpsk_sim_constellations_dynamic.dat};
	\end{axis}
\end{tikzpicture}
\end{subfigure}
\hfill
\begin{subfigure}{.45\linewidth}
\begin{tikzpicture}
	\begin{axis}[
			title = {Synchronized},
			width = 6.5cm, height = 6.5cm,
			% ylabel = {Quadrature},
			% xlabel = {In-Phase},
			xlabel near ticks,
			ylabel near ticks,
			grid = major,
			xmin = -5, xmax = 5,
			ymin = -5, ymax = 5,
		]

		\addplot[magenta!80!blue, only marks] table[x index = 2, y index = 3]
			{figures/data/qpsk_sim_constellations_dynamic.dat};
	\end{axis}
\end{tikzpicture}
\end{subfigure}
\hfill

\vspace{3mm}

\hfill
\begin{subfigure}{.45\linewidth}
\begin{tikzpicture}
	\begin{axis}[
			title = {Equalized},
			width = 6.5cm, height = 6.5cm,
			% ylabel = {Quadrature},
			% xlabel = {In-Phase},
			xlabel near ticks,
			ylabel near ticks,
			grid = major,
			xmin = -1.5, xmax = 1.5,
			ymin = -1.5, ymax = 1.5,
		]

		\addplot[magenta!50!blue, only marks] table[x index = 4, y index = 5]
			{figures/data/qpsk_sim_constellations_dynamic.dat};
	\end{axis}
\end{tikzpicture}
\end{subfigure}
\hfill
\begin{subfigure}{.45\linewidth}
\begin{tikzpicture}
	\begin{axis}[
			title = {Locked},
			width = 6.5cm, height = 6.5cm,
			% ylabel = {Quadrature},
			% xlabel = {In-Phase},
			xlabel near ticks,
			ylabel near ticks,
			grid = major,
			xmin = -1.5, xmax = 1.5,
			ymin = -1.5, ymax = 1.5,
		]

		\addplot[magenta!30!blue, only marks] table[x index = 6, y index = 7]
			{figures/data/qpsk_sim_constellations_dynamic.dat};
	\end{axis}
\end{tikzpicture}
\end{subfigure}
\hfill