Adil Ahmad hello Mr Adil. The output signal freq is = 2 sampling signal ( pulse ) freq. I think you are talking about oscilliscope screen measurment, in fact , this mesurment represent the freq of the average samples in each cycle ( i mean positive & negative samples freq). I hope this benefitial
Yes, I took 1 KHz input signal and the sampled output so obtained also has the same frequency. Why is it so? It should show : Sampling frequency. Yes/No?
It is the same frequency because that is the reconstructed input signal, which has frequency 1kHz. Sampling theorem states that if the frequency of the sampling pulses is twice the modulating signals, the modulating signal can be reconstructed easily at the output. So you will get the same frequency at the output. Here's what is going on in the circuit > Your information signal's frequency changes w.r.t carrier (sampling pulses) > Sample and hold circuit will hold the amplitude of your pulse till the next *leading* edge. So now, your signal looks similar to the original signal. After going in the low pass filter, the sample and hold output (one which looks like steps) will be smoothed out. And that's why, your frequency will be same as input.
عاشت ايدك استاذ على هذا الجهد جدا الفكرة جميلة ومفيده للطلاب نتمنى مستقبلا نشوف باقي التجارب على هذه القناة
its realy good for easy to understand
Sir, You should really work on your ENGLISH......(The explanation was fine though.)
Yeshwanth Reddy thank you for encouraging 😊
Sir, why the sampled output has a frequency same as that of input signal?
Adil Ahmad hello Mr Adil. The output signal freq is = 2 sampling signal ( pulse ) freq.
I think you are talking about oscilliscope screen measurment, in fact , this mesurment represent the freq of the average samples in each cycle ( i mean positive & negative samples freq).
I hope this benefitial
Yes, I took 1 KHz input signal and the sampled output so obtained also has the same frequency. Why is it so?
It should show : Sampling frequency. Yes/No?
Adil Ahmad as i told u . It is an average freq of signal that are consists of posiitive samples and negative samples
It is the same frequency because that is the reconstructed input signal, which has frequency 1kHz. Sampling theorem states that if the frequency of the sampling pulses is twice the modulating signals, the modulating signal can be reconstructed easily at the output. So you will get the same frequency at the output.
Here's what is going on in the circuit >
Your information signal's frequency changes w.r.t carrier (sampling pulses) > Sample and hold circuit will hold the amplitude of your pulse till the next *leading* edge. So now, your signal looks similar to the original signal. After going in the low pass filter, the sample and hold output (one which looks like steps) will be smoothed out.
And that's why, your frequency will be same as input.