Howtosignalprocessing
- What are the two types of quantization?
- What is sampling and quantization in ADC?
- What is sampling and quantization in PCM?
What are the two types of quantization?
There are two types of Quantization - Uniform Quantization and Non-uniform Quantization. The type of quantization in which the quantization levels are uniformly spaced is termed as a Uniform Quantization.
What is sampling and quantization in ADC?
An analog-to-digital converter (ADC) can be modeled as two processes: sampling and quantization. Sampling converts a time-varying voltage signal into a discrete-time signal, a sequence of real numbers. Quantization replaces each real number with an approximation from a finite set of discrete values.
What is sampling and quantization in PCM?
PCM (Pulse Code Modulation) is a standardized method used in the telephone network (POTS) to change an analog signal to a digital one. The analog signal is first sampled at a 8-kHz sampling rate. Then each sample is quantized into 1 of 256 levels and then encoded into digital eight-bit words.
