‫Now, this is the floor diagram that can be used to simulate the channel.
‫And here I have used the channel model block.
‫Mark, there are some other blocks also that you might have noticed.
‫And one of these blocks is the Kutty Jeju, a range blog.
‫The Kutty Jehu eight inch block is used when you want to adjust some that variable on the fly.
‫During a simulation and you can easily find this block by.
‫Pooping in this search.
‫What range?
‫A pork range here.
‫So I get cupie, DUI.
‫It ain't Double-Click it.
‫It would appear here.
‫Now, if I open this block here first, I have the idea of the variable that I want to change during
‫the simulation.
‫Then it is the label of the variable type, whether it's flawed.
‫Which type of variabilities.
‫And what is the default value of this?
‫And for the timing offset.
‫The default value set as one and the start value of this variable is zero point nine nine.
‫And it can have a maximum value of one point zero zero one.
‫In the steps of point zero zero zero one.
‫And this widget is counter.
‫And this is us.
‫And this widget is a slider.
‫That means we will change the values of this variable using a slider.
‫And there would be a counter on the side that would also indicate what is the value of this slider.
‫And you can also use the counter to change the values of the slider.
‫So then I click, OK.
‫Now this is the Channel Mordred blog, which is used to simulate a channel.
‫And here first, I do not want to simulate the effect of the multi path.
‫Rather, I want to see the effect of these, see the effect of other variables.
‫So I would put the caps as one.
‫And then I have the timing offset which is taken from this Gilbee Jeju I range blog and its idea is
‫basically port here.
‫So its idea of this blog is timing.
‫Underscore, offset.
‫I bought it here for the frequency offset cupie Jesuit Áng blog.
‫I bought the idee here in order to adjust the frequency offset on the fly.
‫And here I am putting the idea of the.
‫Kutty Gesualdo Range blog for the noise wordage.
‫OK.
‫Now then I click apply and.
‫OK.
‫And now I run this.
‫So here this is the Constellation diagram that is at the output of the.
‫The escape modulator.
‫And this is the constellation diagram at the old part of the general.
‫And you can see that there is not much difference.
‫However, if I increase Dan Weiss.
‫You can see that noise is being added on the Constellation diagram at the output of the.
‫So I decrease it back.
‫Now I see the effect of timing offset.
‫If I increase their event, timing offset has a value of one.
‫Then this means that there is no difference in the timing of the clocks at the transmitter and at the
‫receiver.
‫So when I increase it, I can see that there is inter symbol interference because of the wrong timing
‫at the receiver.
‫So then I decrease it back to one.
‫So that there is no timing difference.
‫And now I see the effect of frequency offset.
‫If I increase the frequency offset, then you can see that the constellation starts rotating.
‫So whenever there is difference in frequency between the carrier, the transmitter and at the receiver,
‫at the receiver, you would get this effect that the constellation would start spinning.
‫So I close it now and now I'm going to see the effect of these multi pot.
‫And here I can, I have modelled the multi pot channel as a filter that has six steps.
‫And each of these taps has a real part.
‫And it has an emergency part because the signal also has a real part.
‫And it has up made neat part.
‫So.
‫So in order to include this effect simply, I will paup the idea of.
‫This variable here, which is the idea of the Field X that is used, is similar to the multi pot effect.
‫So I bought the taps here of this multi pot filter as I click apply and.
‫Okay.
‫And now I run it.
‫And here you can see that there is lots of inter symbol interference and this inter symbol interference
‫is caused due to the fact because there are four.
‫There are six multi pots between the transmitter and the receiver.
‫And this is causing the interception interference.