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Scanning

Sometimes it is convenient to map multidimensional signals to 1-D and vice versa.
Should broadcast TV signals be processed as a 3-D signal or a 1-D signal? See Figure 2

Figure 2: Sampling for broadcast TV signals.
$\begin{figure}\begin{center} \epsffile{tv.eps}\end{center}\end{figure}$

**Figure 2:** Sampling for broadcast TV signals.
$\begin{figure}\begin{center} \epsffile{tv.eps}\end{center}\end{figure}$