Adjust Receive Signal by Using Different AGC Step Sizes
This model uses AGC blocks with different step size settings to adjust the received signal power.
A time scope plots the effect of step size on AGC performance. Random integer-valued symbols are QPSK modulated and then the signal level is scaled down by using a Gain block. Three signal branches flow to a time scope to plot the received signal magnitude with no AGC, AGC with step size set to 0.0001, and AGC with step size set to 0.001.
Run the model and display the time scope to show the signal level adjustments performed by the AGC blocks.