Question

Cimparision of delta.Modulation.Adaptive delta.Modulation

Answer 1

Answer:

Difference between delta modulation and adaptive delta modulation

DM :

 It is one of the simplest method of converting analog signals into digital data.                                                        

In delta modulation, step size is fixed. It is not varied.

In delta modulation, we have slope over load distortion problem and granular noise problem.

feedback is present in the transmitter of the delta modulation.  

ADM:

This is also a simple method.

 In Adaptive delta modulation, step size is not fixed. It varies as per the variations of the signal.

In adaptive delta modulation, we have only quantization noise problem. this noise arises due to the process of quantization.

Feedback is present in the transmitter like delta modulation.