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Commutation ( $ \sf Y_{{{\sf i}}}^{}$)

In some systems, the receptor signals can be switched (commuted) between IF-channels for calibration.

$\displaystyle \sf Y_{{{\sf i}}}^{}$  = $\displaystyle \left(\vphantom{\begin{array}{cc}1 & 0\\  0 & 1 \end{array}}\right.$$\displaystyle \begin{array}{cc}1 & 0\\  0 & 1 \end{array}$$\displaystyle \left.\vphantom{\begin{array}{cc}1 & 0\\  0 & 1 \end{array}}\right)$      or      $\displaystyle \sf Y_{{{\sf i}}}^{}$  = $\displaystyle \left(\vphantom{\begin{array}{cc}0 & 1\\  1 & 0 \end{array}}\right.$$\displaystyle \begin{array}{cc}0 & 1\\  1 & 0 \end{array}$$\displaystyle \left.\vphantom{\begin{array}{cc}0 & 1\\  1 & 0 \end{array}}\right)$ (41)


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