How to extract single side of signal spectrum in SIMULINK
If you do not have a single side band separation block-diagram in Simulink, then you would try the following algorithm to separate the upper sideband from the lower sideband given that you have a block called Hilbert transformer.

Given that your original real valued baseband input signal is $x[n]$, then the following signal is called as the analytic signal:

$$  x^+[n] = x[n] + j \hat{x}[n] $$ where $$\hat{x}[n] = \mathcal{H} \{x[n] \} = \frac{1}{\pi n} \star x[n]$$ is called as the Hilbert transform of the signal $x[n]$.

It can be shown that the Fourier spectrum of the analytic signal is:
$$ X^+(\omega) = \begin{cases} 
2 X(\omega) &amp;, \text{for } ~~~  0 &lt; \omega &lt; \pi \\ 
0 &amp;, \text{for } ~~~ -\pi &lt; \omega &lt; 0\\ \end{cases}
$$

Which is 2x the upper side band of the signal $x[n]$