Non uniform quantization is achieved through

Detailed Solution. Non uniform quantization is achieved by uniformly quantizing the "compressed" signal. At the receiver, an inverse compression characteristic, called "expansion" is employed to avoid signal distortion. It is implemented to improve the signal to quantization noise ratio of weak signals.

1. What is non uniform quantization?
2. What is need for non uniform quantization?
3. Can we perform non uniform quantization using a uniform quantizer?
4. What are quantization techniques?

What is non uniform quantization?

The type of quantization in which the quantization levels are unequal and mostly the relation between them is logarithmic, is termed as a Non-uniform Quantization.

What is need for non uniform quantization?

The technique of non-uniform quantization described in the paper is readily implemented to improve the steady state accuracy of an existing system, or alternatively for a given design-consistent accuracy, to economize in analogue-to-digital converter bit capacity.

Can we perform non uniform quantization using a uniform quantizer?

Quantize g with a uniform quantization and then perform the inverse nonlinearity. The resulting is uniform in the interval . The nonuniform quantization by companding minimizes the distortion. i.e. number of reconstruction levels for is proportional to the standard deviation of .

What are quantization techniques?

Quantization is the process of mapping continuous infinite values to a smaller set of discrete finite values. In the context of simulation and embedded computing, it is about approximating real-world values with a digital representation that introduces limits on the precision and range of a value.