Communication System - GATE practice papers - Electronics & Communication for Q. 542
Q. How is the process of non-uniform quantization equivalently & combinationally performed?
A. Passage of baseband signal through the compressor
B. Application of compressed signal to a uniform quantizer
C. Passage of passband signal through the compressor
D. Application of compressed signal to a non-uniform quantizer
(Marks : 02)- Published on 19 Oct 15a. A & B
b. C & D
c. A & D
d. C & B
ANSWER: A & B
Non-uniform quantizer has has non-linear characteristics while the step-size consistently keeps on varying & depends on the amplitude of input signal.
This process of non-uniform quantization resemble to the mechanisms of passing the baseband signal through compressor and then eventually applying the compressed signal to a uniform quantizer.
