‫Now we come to the demobilization of the four ESEA signal and for the demobilization of the four escape
‫signal, we are going to use the same procedure as we used for the demobilization of the amplitude modulated
‫signal.
‫For example, if this is the receiver for yes, a signal, we multiply it with the carrier and then
‫we pass it through that low pass filter.
‫And as a result, we recover back the base band cymbals.
‫And after that, we sample these base sprints cymbals.
‫And then we apply the thresholding function on these simple symbols, for example.
‫This is the four ESV Constellation diagram.
‫And there are four constellation points.
‫So there are three thresholds between these four constellation points.
‫So when we simple assemble and if that simple symbol lies at this point.
‫Between these two just between these two thresholds, then we will say that one man was transmitted.
‫If this Hempel's symbol lies here between these two thresholds, then we would say that zero one is
‫Strachwitz.
‫So in this way, we demodulator the four ESV signal and we recover the bits that were transmitted by
‫the transmitter.