DEVELOPMENT OF AN EXPERIMENTAL FULL DIGITAL HDTV SYSTEM - ALGORITHM AND IMPLEMENTATION

This paper describes the algorithm and implementation of an experiment al full-digital HDTV system we have recently developed. The video comp ression algorithm is based on motion-compensated DCT without B (bidire ctional prediction) frames and the audio compression is based on subba nd analysis/synthesis technique. The algorithms have commonalties with international standards such as MPEG, with some additional features. The system has been implemented using off-the-shelf IC's and programma ble logic devices, and provides a fairly good video/audio quality (28- 38 dB peak-to-peak signal-to-noise ratio for video) despite relatively low complexity.