Dpcm

DPCM Encoder and Decoder Simulation in MATLAB

DPCM Encoder and Decoder Simulation in MATLAB
  1. What is DPCM encoder?
  2. What is DPCM technique?
  3. What is the advantage of DPCM?

What is DPCM encoder?

Differential pulse-code modulation (DPCM) is a signal encoder that uses the baseline of pulse-code modulation (PCM) but adds some functionalities based on the prediction of the samples of the signal. The input can be an analog signal or a digital signal.

What is DPCM technique?

The Differential Pulse Code Modulation (DPCM) method was used with a large success in the image compression [125], [153], [159]. This technique is based on removing redundant information, existing between consecutive image sequences, and coding only new information, which is passed with new image elements.

What is the advantage of DPCM?

DPCM requires less Bandwidth than PCM for transmitting the same signal. DPCM is used to decrease quantization noise. The number of quantized levels is increased in DPCM. In DPCM the difference between successive sample is quantized.

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