I in the previous two or three, we have discussed about the whole dynamic nature now in this topic,
we are going to discuss about the early case and the issue of sex.
We have already discussed this architecture of bricks and mortar the previous in the previous slides.
So the thing is that luchadores nature is not a perfect since it is a hardware device.
So it is not possible that it will it will provide a perfectly perfect system.
There may be some problem.
So what happened?
And since our local affiliate, it is not perfect.
There is a role because this causes self mixing it Mixu to produce these components.
What happened?
There may be some leaker's to the mix here and there.
And due to this leaker's, there is a chance that the DC component might or might present.
So what happened due to this?
DC Lolitas contribute a large tissue offset due to the Haidian of receiving gene.
So what happened?
Suppose we have a sinusoidal SIGNALER or causational for maybe and suppose are considering a side signal
and if there is yourself mixing, so it's going to become a scientist and scientist.
Craddock's can be one minus cost to X Y two.
So when we open this term, it will be one way to minus costs to X the right way to.
So again, this is a cost center and it is a DC term.
So why is that is error leakage and why that is early case because that is not perfect.
And due to that, this alone leaker's there is a DC component and due to the data to their DC component
to this DC offset.
No, let's see how this tissue offset can be seen in the case of colon architecture.
So the other frequencies that local or state run plus local or state are too frequency.
So what happened?
Suppose when my signal is passed through the lower one.
So what what happened in DC will be at the center, so my signal will be here somewhat.
So this is a low one.
So this is the stage after the signal first it is a stage after the first signal is passed.
So this is a alone and after one when we when we frequency translated, when the frequency of the signal
is translated, using a low to hold can be plotted.
This will be my one and this will be allowed to be produce a low frequency on the frequency scale.
Suppose this will be the low one and this will be the two.
But what will be my RF frequency.
My my other frequencies know some of a lower frequency plus Halo two frequency.
So my actual signal will be here my this in my actual signal and this is a lower frequency at a lower
frequency.
So if any leakage cost can be any leakage from the low and therefore any leakage from the local oscillator
can be minimized or it can be reduced to very significant very, very low level because you can tune
this one out to so this DC component can be minimized.
But in the case of modern architecture, what happened?
This is my one and this is my RF signal.
So in this case, what happened, this DC component will be the inside of this whole this whole whole
signal.
So it cannot be easily separated from the main component.
While in the case of programming architecture, we have to look closely at, we can choose to localize,
we can choose the frequency of these two oscillator and this this component can be avoided.
So this is what we see in the frequency domain and support.
If you want to visualize this, this is the DC component, then what you call.
Into the process, I suppose this is your baseball signal in that DSP site, if you plotted the spectrum,
it will be at zero hertz.
When you use the modern architecture, there will be a DC component due to the low mixing and its frequency.
Will we have a low what it might be two gigahertz it maybe three Yeager's whatever on the desired frequency
spectrum.
So this is inside this machine and you can always it.
If you want to visualize it on the spectrum analyzer, then what you have to do, you have to provide
a basement.
Sieved to this signal in the DSP.
Suppose if you have a signal X, T and you want to provide a piece when support, you have to do exactly
that is E, G or McGarrity.
So by using a shifting operation here, we can shift our actual signal.
Suppose it was at zero hertz to the conservative side.
So there is this shift of support, say five kilohertz or two megahertz.
And when you transmit this signal that only spectrum analyzer of what we will see, this is our actual
signal and this is our DC component.
So this is your signal.
This is our decision point.
Why it is visible?
Because at the center we have provided a shift position so that my local authority will be there means
support it for the two gigahertz.
It is a two gigahertz where my signal is two years plus five megahertz.
So in this case, we can visualize the.
DC offset.
So what we can conclude so that this year offset is more prominent in the case of homeowner architecture.
Henceforth, in this lecture, we have discussed about a lonely case and the issue of sex.
Next, we are going to learn the IQ mismatch or IQ imbalance in the trustmark.