Abstract
An approach for reducing the effect of quantization noise is proposed that uses the residual redundancy in the ouput of an n-bit differential pulse-code modulation (DPCM) system to mimic an n plus 1-bit DPCM system. It involves developing a lookup table indexed by the past and present n-bit quantizer outputs to obtain the most probable n plus 1-bit quantizer output. The technique is simple to implement and provides consistent improvement over standard DPCM systems.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1138-1141 |
| Number of pages | 4 |
| Journal | Conference Record - International Conference on Communications |
| State | Published - 1987 |
| Externally published | Yes |
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering