EC8501 DC 2marks 16marks, DIGITAL COMMUNICATION Question Bank,ECE 5th Sem


EC8501 DC 2marks

Anna University Regulation 2017 ECE EC8501 DC 2marks & 16marks for all 5 units are provided below. EC8501 DC Short answers, Question Bank for DIGITAL COMMUNICATION Engineering are listed down for students to make perfect utilization and score maximum marks with our study materials.


1 Define Nyquist rate.

Let the singal be bandlimited to ,,W” Hz. Then nyquist rate is given as nyquist rate=2W samples/sec. Aliasing will not take place it sample rate is greater than nyquist rate

2. Define PWM

PWM is basically pulse width modulation. widthof the pulse changes according to amplitude of the modulation also referred as pulse duration modulation or PWM

3. What is alaising?

The phenomenon of a high frequency in the spectrum of the orginal signal seemingly taking on the identify of a lower frequency in the spectrum of the sampled singal is called alaising

4. Define quantizing process

The conversion of analog samlpe of the signal into digital from is called quantizing process

5. What is meant by idle channel noise?

Idle channel noise is the coding noise measured at the receiver output with zero transmitter input

6. What is meant by prediction error?

The different between the actual sample of the process at the time of interest  and the prediction output is called prediction error

7. Define delta modulation?

Delta modulation is the one bit version of differential pulse code modulation

EC8501 DC Unit 1 2marks & 16marks – Download Here

EC8501 DC Unit 2 2marks & 16marks – Download Here

EC8501 DC Unit 3 2marks & 16marks – Download Here

EC8501 DC Unit 4 2marks & 16marks – Download Here

EC8501 DC All Units 2marks & 16marks – Download Here

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Related Links

For EC8501 DC Previous Year Question Papers – Click here

For EC8501 DC Important Questions/Answer Key – Click here

For EC8501 DC Lecture Handwritten Notes – Click here

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EC8501 2marks, DC Unit wise short answers – ECE 5th Semester


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