Question

Difference between delta modulation and adaptive delta modulation

Answer 1

hii dear....

I hope this will help u

DM is the simplest form of differential pulse-code modulation where the difference between successive samples are encoded into n-bit data streams.

In delta modulation, the transmitted data are reduced to a 1-bit data stream. Its main features are: The analog signal is approximated with aseries of segments.

Answer 2

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.