6EC7 COMMUNICATION LAB-II

1.  (a) To observe sampling of analog signal. Identify & solve the aliasing problem.

(b) To observe the Transmission of two signals over a single channel using sampling methods.

2.   TDM-PAM: Modulation & demodulation.

3.   Operation of a PCM encoder & decoder.

4    TDM-PCM: Modulation & demodulation.

5.   Observe the performance of a Delta modulation system & to derive from it a delta sigma modulation

system.

6.   To generate and study the various data formatting schemes (Unipolar, Bi-polar, Manchester,AMI etc.).

7.  Generate ASK signals, with and without carrier suppression. Demodulation of these two types of

modulated signal.

8.  Generate the FSK wave forms & demodulate the FSK signals based on the properties of

(a)  Tuned circuits  (b) PLL

9.  Generate the PSK signals and demodulate it.

Simulation using any  virtual Instrumentation Software:

10.

To carry out convolution in both continuous time and discrete time systems.

11. Companding and multiplexing of PCM signals.

12.

Perform various keying Techniques: PSK, ASK, FSK & MSK.